/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=BIGGEST --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 [2020-10-13 01:15:08,742 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-13 01:15:08,745 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-13 01:15:08,783 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-13 01:15:08,783 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-13 01:15:08,791 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-13 01:15:08,793 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-13 01:15:08,796 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-13 01:15:08,798 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-13 01:15:08,801 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-13 01:15:08,802 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-13 01:15:08,803 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-13 01:15:08,803 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-13 01:15:08,806 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-13 01:15:08,808 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-13 01:15:08,810 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-13 01:15:08,812 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-13 01:15:08,813 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-13 01:15:08,814 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-13 01:15:08,822 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-13 01:15:08,824 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-13 01:15:08,825 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-13 01:15:08,826 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-13 01:15:08,827 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-13 01:15:08,839 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-13 01:15:08,839 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-13 01:15:08,840 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-13 01:15:08,845 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-13 01:15:08,845 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-13 01:15:08,846 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-13 01:15:08,846 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-13 01:15:08,847 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-13 01:15:08,847 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-13 01:15:08,848 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-13 01:15:08,852 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-13 01:15:08,852 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-13 01:15:08,853 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-13 01:15:08,853 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-13 01:15:08,853 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-13 01:15:08,856 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-13 01:15:08,857 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-13 01:15:08,860 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 [2020-10-13 01:15:08,895 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-13 01:15:08,896 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-13 01:15:08,898 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-13 01:15:08,898 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-13 01:15:08,898 INFO L138 SettingsManager]: * Use SBE=true [2020-10-13 01:15:08,899 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-13 01:15:08,899 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-13 01:15:08,899 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-13 01:15:08,899 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-13 01:15:08,900 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-13 01:15:08,900 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-13 01:15:08,901 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-13 01:15:08,901 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-13 01:15:08,901 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-13 01:15:08,902 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-13 01:15:08,902 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-13 01:15:08,902 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-13 01:15:08,902 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-13 01:15:08,902 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-13 01:15:08,902 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-13 01:15:08,903 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-13 01:15:08,903 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-13 01:15:08,903 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-13 01:15:08,903 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-13 01:15:08,904 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-13 01:15:08,904 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-13 01:15:08,904 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-13 01:15:08,904 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=BIGGEST;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=BIGGEST;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=BIGGEST;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=BIGGEST;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=BIGGEST;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=BIGGEST;log-additional-information=true;unknown-allowed=true; [2020-10-13 01:15:09,196 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-13 01:15:09,209 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-13 01:15:09,212 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-13 01:15:09,214 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-13 01:15:09,215 INFO L275 PluginConnector]: CDTParser initialized [2020-10-13 01:15:09,215 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-kernel--locking--locktorture.ko-entry_point.cil.out.i [2020-10-13 01:15:09,267 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d8b2b9dca/5b9a4f8154424655a67963028a450d0c/FLAGbb48f48c2 [2020-10-13 01:15:09,845 INFO L306 CDTParser]: Found 1 translation units. [2020-10-13 01:15:09,846 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-kernel--locking--locktorture.ko-entry_point.cil.out.i [2020-10-13 01:15:09,869 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d8b2b9dca/5b9a4f8154424655a67963028a450d0c/FLAGbb48f48c2 [2020-10-13 01:15:10,097 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d8b2b9dca/5b9a4f8154424655a67963028a450d0c [2020-10-13 01:15:10,105 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-13 01:15:10,107 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-13 01:15:10,108 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-13 01:15:10,108 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-13 01:15:10,112 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-13 01:15:10,112 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 01:15:10" (1/1) ... [2020-10-13 01:15:10,116 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@fd254f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:15:10, skipping insertion in model container [2020-10-13 01:15:10,116 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 01:15:10" (1/1) ... [2020-10-13 01:15:10,124 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-13 01:15:10,213 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-13 01:15:10,618 WARN L1191 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [1753] [2020-10-13 01:15:10,619 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] [2020-10-13 01:15:11,021 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 01:15:11,055 INFO L203 MainTranslator]: Completed pre-run [2020-10-13 01:15:11,169 WARN L1191 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [1753] [2020-10-13 01:15:11,170 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] [2020-10-13 01:15:11,324 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 01:15:11,422 INFO L208 MainTranslator]: Completed translation [2020-10-13 01:15:11,423 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:15:11 WrapperNode [2020-10-13 01:15:11,423 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-13 01:15:11,424 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-13 01:15:11,424 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-13 01:15:11,424 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-13 01:15:11,440 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:15:11" (1/1) ... [2020-10-13 01:15:11,440 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:15:11" (1/1) ... [2020-10-13 01:15:11,510 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:15:11" (1/1) ... [2020-10-13 01:15:11,511 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:15:11" (1/1) ... [2020-10-13 01:15:11,585 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:15:11" (1/1) ... [2020-10-13 01:15:11,602 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:15:11" (1/1) ... [2020-10-13 01:15:11,617 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:15:11" (1/1) ... [2020-10-13 01:15:11,649 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-13 01:15:11,649 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-13 01:15:11,652 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-13 01:15:11,652 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-13 01:15:11,653 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:15:11" (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 [2020-10-13 01:15:11,730 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-13 01:15:11,730 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-13 01:15:11,731 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~~TO~int [2020-10-13 01:15:11,731 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2020-10-13 01:15:11,732 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~~TO~VOID [2020-10-13 01:15:11,733 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2020-10-13 01:15:11,733 INFO L138 BoogieDeclarations]: Found implementation of procedure bitmap_weight [2020-10-13 01:15:11,733 INFO L138 BoogieDeclarations]: Found implementation of procedure cpumask_weight [2020-10-13 01:15:11,733 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2020-10-13 01:15:11,733 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2020-10-13 01:15:11,734 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_1 [2020-10-13 01:15:11,734 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_5 [2020-10-13 01:15:11,734 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_8 [2020-10-13 01:15:11,736 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2020-10-13 01:15:11,736 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kmalloc_12 [2020-10-13 01:15:11,737 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-13 01:15:11,737 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-10-13 01:15:11,737 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2020-10-13 01:15:11,738 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2020-10-13 01:15:11,738 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2020-10-13 01:15:11,738 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2020-10-13 01:15:11,738 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2020-10-13 01:15:11,739 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2020-10-13 01:15:11,739 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2020-10-13 01:15:11,739 INFO L138 BoogieDeclarations]: Found implementation of procedure torture_lock_busted_write_lock [2020-10-13 01:15:11,739 INFO L138 BoogieDeclarations]: Found implementation of procedure torture_lock_busted_write_delay [2020-10-13 01:15:11,739 INFO L138 BoogieDeclarations]: Found implementation of procedure torture_lock_busted_write_unlock [2020-10-13 01:15:11,739 INFO L138 BoogieDeclarations]: Found implementation of procedure torture_spin_lock_write_lock [2020-10-13 01:15:11,740 INFO L138 BoogieDeclarations]: Found implementation of procedure torture_spin_lock_write_delay [2020-10-13 01:15:11,740 INFO L138 BoogieDeclarations]: Found implementation of procedure torture_spin_lock_write_unlock [2020-10-13 01:15:11,740 INFO L138 BoogieDeclarations]: Found implementation of procedure torture_spin_lock_write_lock_irq [2020-10-13 01:15:11,740 INFO L138 BoogieDeclarations]: Found implementation of procedure torture_lock_spin_write_unlock_irq [2020-10-13 01:15:11,740 INFO L138 BoogieDeclarations]: Found implementation of procedure lock_torture_writer [2020-10-13 01:15:11,740 INFO L138 BoogieDeclarations]: Found implementation of procedure lock_torture_printk [2020-10-13 01:15:11,741 INFO L138 BoogieDeclarations]: Found implementation of procedure lock_torture_stats_print [2020-10-13 01:15:11,741 INFO L138 BoogieDeclarations]: Found implementation of procedure lock_torture_stats [2020-10-13 01:15:11,742 INFO L138 BoogieDeclarations]: Found implementation of procedure lock_torture_print_module_parms [2020-10-13 01:15:11,742 INFO L138 BoogieDeclarations]: Found implementation of procedure lock_torture_cleanup [2020-10-13 01:15:11,743 INFO L138 BoogieDeclarations]: Found implementation of procedure lock_torture_init [2020-10-13 01:15:11,743 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-13 01:15:11,744 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2020-10-13 01:15:11,744 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2020-10-13 01:15:11,744 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2020-10-13 01:15:11,744 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2020-10-13 01:15:11,745 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2020-10-13 01:15:11,745 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2020-10-13 01:15:11,745 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags_and_return_some_page [2020-10-13 01:15:11,745 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_nonatomic [2020-10-13 01:15:11,745 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2020-10-13 01:15:11,746 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2020-10-13 01:15:11,746 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_trylock [2020-10-13 01:15:11,746 INFO L138 BoogieDeclarations]: Found implementation of procedure __bitmap_weight [2020-10-13 01:15:11,746 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2020-10-13 01:15:11,746 INFO L138 BoogieDeclarations]: Found implementation of procedure __udelay [2020-10-13 01:15:11,746 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock [2020-10-13 01:15:11,747 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock [2020-10-13 01:15:11,747 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock_irqrestore [2020-10-13 01:15:11,747 INFO L138 BoogieDeclarations]: Found implementation of procedure _torture_create_kthread [2020-10-13 01:15:11,747 INFO L138 BoogieDeclarations]: Found implementation of procedure _torture_stop_kthread [2020-10-13 01:15:11,747 INFO L138 BoogieDeclarations]: Found implementation of procedure kmem_cache_alloc [2020-10-13 01:15:11,747 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2020-10-13 01:15:11,748 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2020-10-13 01:15:11,748 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_probe_1 [2020-10-13 01:15:11,748 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_probe_2 [2020-10-13 01:15:11,748 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_probe_3 [2020-10-13 01:15:11,748 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_release_1 [2020-10-13 01:15:11,749 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_release_2 [2020-10-13 01:15:11,749 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_release_3 [2020-10-13 01:15:11,749 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_some_page [2020-10-13 01:15:11,751 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2020-10-13 01:15:11,751 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout_interruptible [2020-10-13 01:15:11,751 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout_uninterruptible [2020-10-13 01:15:11,751 INFO L138 BoogieDeclarations]: Found implementation of procedure set_user_nice [2020-10-13 01:15:11,751 INFO L138 BoogieDeclarations]: Found implementation of procedure stutter_wait [2020-10-13 01:15:11,751 INFO L138 BoogieDeclarations]: Found implementation of procedure torture_cleanup [2020-10-13 01:15:11,752 INFO L138 BoogieDeclarations]: Found implementation of procedure torture_init_begin [2020-10-13 01:15:11,752 INFO L138 BoogieDeclarations]: Found implementation of procedure torture_init_end [2020-10-13 01:15:11,752 INFO L138 BoogieDeclarations]: Found implementation of procedure torture_kthread_stopping [2020-10-13 01:15:11,752 INFO L138 BoogieDeclarations]: Found implementation of procedure torture_must_stop [2020-10-13 01:15:11,752 INFO L138 BoogieDeclarations]: Found implementation of procedure torture_onoff_failures [2020-10-13 01:15:11,752 INFO L138 BoogieDeclarations]: Found implementation of procedure torture_onoff_init [2020-10-13 01:15:11,752 INFO L138 BoogieDeclarations]: Found implementation of procedure torture_random [2020-10-13 01:15:11,753 INFO L138 BoogieDeclarations]: Found implementation of procedure torture_shuffle_init [2020-10-13 01:15:11,753 INFO L138 BoogieDeclarations]: Found implementation of procedure torture_shutdown_absorb [2020-10-13 01:15:11,753 INFO L138 BoogieDeclarations]: Found implementation of procedure torture_shutdown_init [2020-10-13 01:15:11,753 INFO L138 BoogieDeclarations]: Found implementation of procedure torture_stutter_init [2020-10-13 01:15:11,754 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2020-10-13 01:15:11,754 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2020-10-13 01:15:11,754 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2020-10-13 01:15:11,754 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-13 01:15:11,754 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2020-10-13 01:15:11,754 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2020-10-13 01:15:11,755 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2020-10-13 01:15:11,755 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2020-10-13 01:15:11,755 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2020-10-13 01:15:11,755 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2020-10-13 01:15:11,755 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2020-10-13 01:15:11,755 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2020-10-13 01:15:11,755 INFO L130 BoogieDeclarations]: Found specification of procedure strcmp [2020-10-13 01:15:11,755 INFO L130 BoogieDeclarations]: Found specification of procedure __bitmap_weight [2020-10-13 01:15:11,756 INFO L130 BoogieDeclarations]: Found specification of procedure bitmap_weight [2020-10-13 01:15:11,756 INFO L130 BoogieDeclarations]: Found specification of procedure cpumask_weight [2020-10-13 01:15:11,756 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2020-10-13 01:15:11,756 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-13 01:15:11,756 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2020-10-13 01:15:11,756 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock [2020-10-13 01:15:11,757 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock [2020-10-13 01:15:11,757 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock_irqrestore [2020-10-13 01:15:11,757 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_1 [2020-10-13 01:15:11,757 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2020-10-13 01:15:11,757 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_5 [2020-10-13 01:15:11,757 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2020-10-13 01:15:11,758 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_8 [2020-10-13 01:15:11,758 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2020-10-13 01:15:11,758 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2020-10-13 01:15:11,758 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-10-13 01:15:11,758 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2020-10-13 01:15:11,759 INFO L130 BoogieDeclarations]: Found specification of procedure kmem_cache_alloc [2020-10-13 01:15:11,759 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kmalloc_12 [2020-10-13 01:15:11,759 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2020-10-13 01:15:11,759 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2020-10-13 01:15:11,760 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2020-10-13 01:15:11,760 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-13 01:15:11,761 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-10-13 01:15:11,761 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-13 01:15:11,764 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2020-10-13 01:15:11,765 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-13 01:15:11,765 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-13 01:15:11,766 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-13 01:15:11,766 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2020-10-13 01:15:11,766 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2020-10-13 01:15:11,766 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2020-10-13 01:15:11,767 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2020-10-13 01:15:11,767 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2020-10-13 01:15:11,767 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2020-10-13 01:15:11,767 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2020-10-13 01:15:11,767 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout_interruptible [2020-10-13 01:15:11,768 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout_uninterruptible [2020-10-13 01:15:11,768 INFO L130 BoogieDeclarations]: Found specification of procedure set_user_nice [2020-10-13 01:15:11,768 INFO L130 BoogieDeclarations]: Found specification of procedure __udelay [2020-10-13 01:15:11,769 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2020-10-13 01:15:11,775 INFO L130 BoogieDeclarations]: Found specification of procedure torture_onoff_init [2020-10-13 01:15:11,776 INFO L130 BoogieDeclarations]: Found specification of procedure torture_onoff_failures [2020-10-13 01:15:11,776 INFO L130 BoogieDeclarations]: Found specification of procedure torture_random [2020-10-13 01:15:11,776 INFO L130 BoogieDeclarations]: Found specification of procedure torture_shuffle_init [2020-10-13 01:15:11,776 INFO L130 BoogieDeclarations]: Found specification of procedure torture_shutdown_absorb [2020-10-13 01:15:11,776 INFO L130 BoogieDeclarations]: Found specification of procedure torture_shutdown_init [2020-10-13 01:15:11,776 INFO L130 BoogieDeclarations]: Found specification of procedure stutter_wait [2020-10-13 01:15:11,776 INFO L130 BoogieDeclarations]: Found specification of procedure torture_stutter_init [2020-10-13 01:15:11,777 INFO L130 BoogieDeclarations]: Found specification of procedure torture_init_begin [2020-10-13 01:15:11,777 INFO L130 BoogieDeclarations]: Found specification of procedure torture_init_end [2020-10-13 01:15:11,777 INFO L130 BoogieDeclarations]: Found specification of procedure torture_cleanup [2020-10-13 01:15:11,778 INFO L130 BoogieDeclarations]: Found specification of procedure torture_must_stop [2020-10-13 01:15:11,778 INFO L130 BoogieDeclarations]: Found specification of procedure torture_kthread_stopping [2020-10-13 01:15:11,778 INFO L130 BoogieDeclarations]: Found specification of procedure _torture_create_kthread [2020-10-13 01:15:11,778 INFO L130 BoogieDeclarations]: Found specification of procedure _torture_stop_kthread [2020-10-13 01:15:11,778 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-13 01:15:11,778 INFO L130 BoogieDeclarations]: Found specification of procedure lock_torture_cleanup [2020-10-13 01:15:11,778 INFO L130 BoogieDeclarations]: Found specification of procedure torture_lock_busted_write_lock [2020-10-13 01:15:11,779 INFO L130 BoogieDeclarations]: Found specification of procedure torture_lock_busted_write_delay [2020-10-13 01:15:11,779 INFO L130 BoogieDeclarations]: Found specification of procedure torture_lock_busted_write_unlock [2020-10-13 01:15:11,779 INFO L130 BoogieDeclarations]: Found specification of procedure torture_spin_lock_write_lock [2020-10-13 01:15:11,779 INFO L130 BoogieDeclarations]: Found specification of procedure torture_spin_lock_write_delay [2020-10-13 01:15:11,779 INFO L130 BoogieDeclarations]: Found specification of procedure torture_spin_lock_write_unlock [2020-10-13 01:15:11,779 INFO L130 BoogieDeclarations]: Found specification of procedure torture_spin_lock_write_lock_irq [2020-10-13 01:15:11,779 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-13 01:15:11,779 INFO L130 BoogieDeclarations]: Found specification of procedure torture_lock_spin_write_unlock_irq [2020-10-13 01:15:11,780 INFO L130 BoogieDeclarations]: Found specification of procedure lock_torture_writer [2020-10-13 01:15:11,780 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~~TO~int [2020-10-13 01:15:11,781 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2020-10-13 01:15:11,781 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~~TO~VOID [2020-10-13 01:15:11,781 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-13 01:15:11,781 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-13 01:15:11,781 INFO L130 BoogieDeclarations]: Found specification of procedure lock_torture_printk [2020-10-13 01:15:11,781 INFO L130 BoogieDeclarations]: Found specification of procedure lock_torture_stats_print [2020-10-13 01:15:11,781 INFO L130 BoogieDeclarations]: Found specification of procedure lock_torture_stats [2020-10-13 01:15:11,781 INFO L130 BoogieDeclarations]: Found specification of procedure lock_torture_print_module_parms [2020-10-13 01:15:11,781 INFO L130 BoogieDeclarations]: Found specification of procedure lock_torture_init [2020-10-13 01:15:11,782 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-13 01:15:11,782 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_probe_1 [2020-10-13 01:15:11,782 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2020-10-13 01:15:11,782 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_release_2 [2020-10-13 01:15:11,782 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2020-10-13 01:15:11,783 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_release_3 [2020-10-13 01:15:11,783 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_probe_3 [2020-10-13 01:15:11,783 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_probe_2 [2020-10-13 01:15:11,783 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_release_1 [2020-10-13 01:15:11,783 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-13 01:15:11,783 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_some_page [2020-10-13 01:15:11,783 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags_and_return_some_page [2020-10-13 01:15:11,783 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_nonatomic [2020-10-13 01:15:11,784 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_trylock [2020-10-13 01:15:11,784 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2020-10-13 01:15:11,784 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-13 01:15:11,784 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-13 01:15:11,784 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-13 01:15:11,784 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-13 01:15:11,784 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-10-13 01:15:11,784 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-13 01:15:12,346 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2020-10-13 01:15:22,533 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-13 01:15:22,533 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-13 01:15:22,548 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 01:15:22 BoogieIcfgContainer [2020-10-13 01:15:22,548 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-13 01:15:22,550 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-13 01:15:22,550 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-13 01:15:22,554 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-13 01:15:22,554 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 01:15:10" (1/3) ... [2020-10-13 01:15:22,555 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29474e8d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 01:15:22, skipping insertion in model container [2020-10-13 01:15:22,555 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:15:11" (2/3) ... [2020-10-13 01:15:22,555 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29474e8d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 01:15:22, skipping insertion in model container [2020-10-13 01:15:22,556 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 01:15:22" (3/3) ... [2020-10-13 01:15:22,557 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 [2020-10-13 01:15:22,568 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-13 01:15:22,581 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-13 01:15:22,597 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-13 01:15:22,627 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-13 01:15:22,627 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-13 01:15:22,627 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-13 01:15:22,627 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-13 01:15:22,628 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-13 01:15:22,628 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-13 01:15:22,629 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-13 01:15:22,629 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-13 01:15:22,673 INFO L276 IsEmpty]: Start isEmpty. Operand 579 states. [2020-10-13 01:15:22,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2020-10-13 01:15:22,705 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 01:15:22,707 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] [2020-10-13 01:15:22,708 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 01:15:22,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 01:15:22,714 INFO L82 PathProgramCache]: Analyzing trace with hash 1335617973, now seen corresponding path program 1 times [2020-10-13 01:15:22,722 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 01:15:22,723 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [209179803] [2020-10-13 01:15:22,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 01:15:23,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 01:15:23,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 01:15:23,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 01:15:25,050 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 01:15:25,050 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-13 01:15:25,050 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 01:15:25,050 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1871 [2020-10-13 01:15:25,054 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 01:15:25,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 01:15:25,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 01:15:25,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-10-13 01:15:25,055 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-13 01:15:26,301 WARN L193 SmtUtils]: Spent 1.08 s on a formula simplification that was a NOOP. DAG size: 397 [2020-10-13 01:15:26,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 01:15:26,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 01:15:26,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 01:15:26,646 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 01:15:26,647 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 01:15:26,651 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 01:15:26,651 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 268 [2020-10-13 01:15:26,651 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 01:15:26,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 01:15:26,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 01:15:26,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 01:15:26,652 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 01:15:26,744 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 01:15:26,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 01:15:26,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 01:15:26,766 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 01:15:26,766 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 01:15:26,767 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 01:15:26,767 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 01:15:26,767 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 01:15:26,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 01:15:26,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 01:15:26,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 01:15:26,770 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-13 01:15:26,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 01:15:26,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 01:15:26,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 01:15:26,798 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 01:15:26,798 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 01:15:26,798 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 01:15:26,798 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-13 01:15:26,799 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 01:15:26,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 01:15:26,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 01:15:26,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 01:15:26,800 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 01:15:26,808 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-13 01:15:26,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 01:15:26,816 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 01:15:26,825 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 01:15:26,826 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 01:15:26,826 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 01:15:26,826 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 01:15:26,826 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 01:15:26,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 01:15:26,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 01:15:26,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 01:15:26,827 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 01:15:26,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-13 01:15:26,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 01:15:26,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 01:15:26,842 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 01:15:26,843 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 01:15:26,843 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 01:15:26,843 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 01:15:26,843 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 01:15:26,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 01:15:26,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 01:15:26,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-13 01:15:26,844 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 01:15:26,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-13 01:15:26,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 01:15:26,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 01:15:26,856 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 01:15:26,856 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 01:15:26,856 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 01:15:26,857 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 01:15:26,857 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 01:15:26,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 01:15:26,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 01:15:26,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 01:15:26,857 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 01:15:26,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-13 01:15:26,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 01:15:26,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 01:15:26,874 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 01:15:26,874 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 01:15:26,875 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 01:15:26,875 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 01:15:26,875 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 01:15:26,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 01:15:26,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 01:15:26,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 01:15:26,876 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 01:15:26,904 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-10-13 01:15:26,904 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [209179803] [2020-10-13 01:15:26,906 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 01:15:26,907 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-13 01:15:26,907 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1126965833] [2020-10-13 01:15:26,914 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 01:15:26,914 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 01:15:26,929 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 01:15:26,930 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-13 01:15:26,933 INFO L87 Difference]: Start difference. First operand 579 states. Second operand 5 states. [2020-10-13 01:15:27,933 WARN L193 SmtUtils]: Spent 959.00 ms on a formula simplification that was a NOOP. DAG size: 400 [2020-10-13 01:15:29,062 WARN L193 SmtUtils]: Spent 832.00 ms on a formula simplification that was a NOOP. DAG size: 402 [2020-10-13 01:15:29,878 WARN L193 SmtUtils]: Spent 742.00 ms on a formula simplification that was a NOOP. DAG size: 399 [2020-10-13 01:15:52,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 01:15:52,010 INFO L93 Difference]: Finished difference Result 1636 states and 2277 transitions. [2020-10-13 01:15:52,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-13 01:15:52,013 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 56 [2020-10-13 01:15:52,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 01:15:52,044 INFO L225 Difference]: With dead ends: 1636 [2020-10-13 01:15:52,044 INFO L226 Difference]: Without dead ends: 1115 [2020-10-13 01:15:52,052 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-10-13 01:15:52,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1115 states. [2020-10-13 01:15:52,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1115 to 829. [2020-10-13 01:15:52,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 829 states. [2020-10-13 01:15:52,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 829 states to 829 states and 1074 transitions. [2020-10-13 01:15:52,418 INFO L78 Accepts]: Start accepts. Automaton has 829 states and 1074 transitions. Word has length 56 [2020-10-13 01:15:52,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 01:15:52,419 INFO L479 AbstractCegarLoop]: Abstraction has 829 states and 1074 transitions. [2020-10-13 01:15:52,419 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 01:15:52,419 INFO L276 IsEmpty]: Start isEmpty. Operand 829 states and 1074 transitions. [2020-10-13 01:15:52,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2020-10-13 01:15:52,429 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 01:15:52,429 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] [2020-10-13 01:15:52,430 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-13 01:15:52,430 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 01:15:52,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 01:15:52,431 INFO L82 PathProgramCache]: Analyzing trace with hash 773445445, now seen corresponding path program 1 times [2020-10-13 01:15:52,431 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 01:15:52,431 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1476627206] [2020-10-13 01:15:52,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 01:15:52,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 01:15:52,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 01:15:52,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 01:15:52,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 01:15:53,786 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 01:15:53,786 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-13 01:15:53,786 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 01:15:53,787 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1260 [2020-10-13 01:15:53,787 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 01:15:53,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 01:15:53,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 41 [2020-10-13 01:15:53,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-13 01:15:53,788 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 01:15:54,680 WARN L193 SmtUtils]: Spent 763.00 ms on a formula simplification that was a NOOP. DAG size: 397 [2020-10-13 01:15:54,681 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 01:15:54,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 01:15:54,700 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 01:15:54,768 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 01:15:54,768 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 01:15:54,769 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 01:15:54,769 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 74 [2020-10-13 01:15:54,769 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 01:15:54,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 01:15:54,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 01:15:54,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 01:15:54,770 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 01:15:54,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 01:15:54,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 01:15:54,825 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 01:15:54,827 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 01:15:54,827 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 01:15:54,828 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 01:15:54,828 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 01:15:54,828 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 01:15:54,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 01:15:54,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 01:15:54,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 01:15:54,829 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 01:15:54,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 01:15:54,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 01:15:54,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 01:15:54,838 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 01:15:54,838 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 01:15:54,838 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 01:15:54,838 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 01:15:54,839 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 01:15:54,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 01:15:54,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 01:15:54,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 01:15:54,839 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 01:15:54,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-13 01:15:54,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 01:15:54,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 01:15:54,848 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 01:15:54,849 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 01:15:54,849 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 01:15:54,849 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 01:15:54,849 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 01:15:54,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 01:15:54,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 01:15:54,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 01:15:54,850 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 01:15:54,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-13 01:15:54,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 01:15:54,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 01:15:54,857 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 01:15:54,857 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 01:15:54,857 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 01:15:54,858 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 01:15:54,858 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 01:15:54,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 01:15:54,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 01:15:54,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 01:15:54,858 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 01:15:54,880 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-13 01:15:54,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 01:15:54,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 01:15:54,894 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 01:15:54,895 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-13 01:15:54,895 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 01:15:54,895 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 01:15:54,895 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 01:15:54,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 01:15:54,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 01:15:54,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-13 01:15:54,896 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 01:15:54,911 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 01:15:54,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 01:15:54,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 01:15:54,915 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 01:15:54,915 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 01:15:54,916 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 01:15:54,916 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 01:15:54,916 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 01:15:54,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 01:15:54,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 01:15:54,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 01:15:54,917 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 01:15:54,920 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-13 01:15:54,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 01:15:54,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 01:15:54,924 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 01:15:54,924 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 01:15:54,924 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 01:15:54,924 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 01:15:54,924 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 01:15:54,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 01:15:54,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 01:15:54,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 01:15:54,925 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 01:15:54,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-10-13 01:15:54,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 01:15:54,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 01:15:54,932 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 01:15:54,932 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 01:15:54,932 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 01:15:54,933 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 01:15:54,933 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 01:15:54,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 01:15:54,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 01:15:54,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 01:15:54,933 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 01:15:54,952 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2020-10-13 01:15:54,953 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1476627206] [2020-10-13 01:15:54,953 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 01:15:54,953 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-13 01:15:54,953 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2099816449] [2020-10-13 01:15:54,955 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 01:15:54,956 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 01:15:54,956 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 01:15:54,956 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-10-13 01:15:54,956 INFO L87 Difference]: Start difference. First operand 829 states and 1074 transitions. Second operand 7 states. [2020-10-13 01:15:55,768 WARN L193 SmtUtils]: Spent 798.00 ms on a formula simplification that was a NOOP. DAG size: 406 [2020-10-13 01:15:58,701 WARN L193 SmtUtils]: Spent 750.00 ms on a formula simplification that was a NOOP. DAG size: 408 [2020-10-13 01:15:59,498 WARN L193 SmtUtils]: Spent 717.00 ms on a formula simplification that was a NOOP. DAG size: 399 [2020-10-13 01:16:23,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 01:16:23,324 INFO L93 Difference]: Finished difference Result 2040 states and 2885 transitions. [2020-10-13 01:16:23,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-13 01:16:23,331 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 71 [2020-10-13 01:16:23,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 01:16:23,345 INFO L225 Difference]: With dead ends: 2040 [2020-10-13 01:16:23,346 INFO L226 Difference]: Without dead ends: 1836 [2020-10-13 01:16:23,348 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2020-10-13 01:16:23,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1836 states. [2020-10-13 01:16:23,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1836 to 1238. [2020-10-13 01:16:23,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1238 states. [2020-10-13 01:16:23,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1238 states to 1238 states and 1637 transitions. [2020-10-13 01:16:23,594 INFO L78 Accepts]: Start accepts. Automaton has 1238 states and 1637 transitions. Word has length 71 [2020-10-13 01:16:23,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 01:16:23,595 INFO L479 AbstractCegarLoop]: Abstraction has 1238 states and 1637 transitions. [2020-10-13 01:16:23,595 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 01:16:23,595 INFO L276 IsEmpty]: Start isEmpty. Operand 1238 states and 1637 transitions. [2020-10-13 01:16:23,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2020-10-13 01:16:23,600 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 01:16:23,601 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] [2020-10-13 01:16:23,601 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-13 01:16:23,601 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 01:16:23,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 01:16:23,602 INFO L82 PathProgramCache]: Analyzing trace with hash -1419711026, now seen corresponding path program 1 times [2020-10-13 01:16:23,602 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 01:16:23,602 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [252635609] [2020-10-13 01:16:23,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 01:16:23,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 01:16:23,700 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 01:16:23,778 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 01:16:23,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 01:16:24,172 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 01:16:26,165 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 01:16:26,165 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-13 01:16:26,165 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 01:16:26,165 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2507 [2020-10-13 01:16:26,166 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 01:16:26,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 01:16:26,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 41 [2020-10-13 01:16:26,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 01:16:26,166 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 01:16:26,959 WARN L193 SmtUtils]: Spent 722.00 ms on a formula simplification that was a NOOP. DAG size: 397 [2020-10-13 01:16:26,960 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 01:16:26,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 01:16:26,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 01:16:27,037 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 01:16:27,037 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 01:16:27,038 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 01:16:27,038 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 66 [2020-10-13 01:16:27,038 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 01:16:27,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 01:16:27,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 01:16:27,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 01:16:27,039 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 01:16:27,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 01:16:27,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 01:16:27,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 01:16:27,089 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 01:16:27,089 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 01:16:27,089 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 01:16:27,090 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 01:16:27,090 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 01:16:27,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 01:16:27,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 01:16:27,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 01:16:27,091 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 01:16:27,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 01:16:27,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 01:16:27,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 01:16:27,099 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 01:16:27,099 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 01:16:27,099 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 01:16:27,100 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 01:16:27,100 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 01:16:27,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 01:16:27,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 01:16:27,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 01:16:27,101 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 01:16:27,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-13 01:16:27,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 01:16:27,107 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 01:16:27,109 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 01:16:27,109 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 01:16:27,109 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 01:16:27,110 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 01:16:27,110 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 01:16:27,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 01:16:27,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 01:16:27,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 01:16:27,111 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 01:16:27,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-13 01:16:27,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 01:16:27,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 01:16:27,117 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 01:16:27,117 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 01:16:27,118 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 01:16:27,118 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 01:16:27,118 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 01:16:27,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 01:16:27,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 01:16:27,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 01:16:27,119 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 01:16:27,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-13 01:16:27,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 01:16:27,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 01:16:27,161 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 01:16:27,162 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-13 01:16:27,162 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 01:16:27,162 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 01:16:27,163 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 01:16:27,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 01:16:27,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-13 01:16:27,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 01:16:27,164 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 01:16:27,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 01:16:27,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 01:16:27,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 01:16:27,191 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 01:16:27,191 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 01:16:27,191 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 01:16:27,191 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 01:16:27,191 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 01:16:27,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 01:16:27,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 01:16:27,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 01:16:27,192 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 01:16:27,195 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-13 01:16:27,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 01:16:27,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 01:16:27,201 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 01:16:27,201 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 01:16:27,201 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 01:16:27,201 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 01:16:27,202 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 01:16:27,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 01:16:27,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 01:16:27,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 01:16:27,203 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 01:16:27,207 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-13 01:16:27,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 01:16:27,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 01:16:27,214 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 01:16:27,215 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 01:16:27,215 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 01:16:27,215 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 01:16:27,215 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 01:16:27,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 01:16:27,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 01:16:27,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 01:16:27,217 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 01:16:27,248 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-10-13 01:16:27,248 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [252635609] [2020-10-13 01:16:27,249 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 01:16:27,249 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-13 01:16:27,249 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [19480372] [2020-10-13 01:16:27,250 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 01:16:27,250 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 01:16:27,251 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 01:16:27,251 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-10-13 01:16:27,251 INFO L87 Difference]: Start difference. First operand 1238 states and 1637 transitions. Second operand 7 states. [2020-10-13 01:16:28,204 WARN L193 SmtUtils]: Spent 935.00 ms on a formula simplification that was a NOOP. DAG size: 406 [2020-10-13 01:16:30,154 WARN L193 SmtUtils]: Spent 784.00 ms on a formula simplification that was a NOOP. DAG size: 408 [2020-10-13 01:16:30,979 WARN L193 SmtUtils]: Spent 736.00 ms on a formula simplification that was a NOOP. DAG size: 399 [2020-10-13 01:16:56,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 01:16:56,407 INFO L93 Difference]: Finished difference Result 4293 states and 5999 transitions. [2020-10-13 01:16:56,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-13 01:16:56,408 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 75 [2020-10-13 01:16:56,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 01:16:56,431 INFO L225 Difference]: With dead ends: 4293 [2020-10-13 01:16:56,431 INFO L226 Difference]: Without dead ends: 3082 [2020-10-13 01:16:56,436 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2020-10-13 01:16:56,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3082 states. [2020-10-13 01:16:56,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3082 to 2244. [2020-10-13 01:16:56,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2244 states. [2020-10-13 01:16:56,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2244 states to 2244 states and 2981 transitions. [2020-10-13 01:16:56,814 INFO L78 Accepts]: Start accepts. Automaton has 2244 states and 2981 transitions. Word has length 75 [2020-10-13 01:16:56,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 01:16:56,815 INFO L479 AbstractCegarLoop]: Abstraction has 2244 states and 2981 transitions. [2020-10-13 01:16:56,815 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 01:16:56,815 INFO L276 IsEmpty]: Start isEmpty. Operand 2244 states and 2981 transitions. [2020-10-13 01:16:56,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2020-10-13 01:16:56,822 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 01:16:56,822 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] [2020-10-13 01:16:56,822 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-13 01:16:56,823 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 01:16:56,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 01:16:56,823 INFO L82 PathProgramCache]: Analyzing trace with hash 1578120654, now seen corresponding path program 1 times [2020-10-13 01:16:56,823 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 01:16:56,823 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [759145522] [2020-10-13 01:16:56,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 01:16:56,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 01:16:56,992 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 01:16:57,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 01:16:57,315 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 01:16:57,356 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 01:16:58,867 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 01:16:58,867 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 125 [2020-10-13 01:16:58,867 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 01:16:58,867 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1991 [2020-10-13 01:16:58,868 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 01:16:58,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 01:16:58,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 41 [2020-10-13 01:16:58,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 01:16:58,868 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 01:16:59,787 WARN L193 SmtUtils]: Spent 856.00 ms on a formula simplification that was a NOOP. DAG size: 397 [2020-10-13 01:16:59,789 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 01:16:59,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 01:16:59,812 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 01:16:59,911 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 01:16:59,911 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 01:16:59,912 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 01:16:59,912 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 106 [2020-10-13 01:16:59,912 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 01:16:59,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 01:16:59,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 01:16:59,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 01:16:59,914 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 01:16:59,969 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 01:16:59,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 01:16:59,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 01:16:59,976 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 01:16:59,977 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 01:16:59,977 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 01:16:59,977 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 01:16:59,978 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 01:16:59,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 01:16:59,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 01:16:59,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 01:16:59,979 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 01:16:59,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 01:16:59,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 01:16:59,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 01:16:59,991 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 01:16:59,991 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 01:16:59,991 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 01:16:59,991 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 01:16:59,992 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 01:16:59,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 01:16:59,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 01:16:59,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 01:16:59,993 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 01:16:59,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-13 01:16:59,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 01:17:00,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 01:17:00,002 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 01:17:00,002 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 01:17:00,002 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 01:17:00,003 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 01:17:00,003 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 01:17:00,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 01:17:00,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 01:17:00,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 01:17:00,004 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 01:17:00,007 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-13 01:17:00,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 01:17:00,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 01:17:00,011 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 01:17:00,011 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 01:17:00,011 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 01:17:00,011 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 01:17:00,011 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 01:17:00,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 01:17:00,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 01:17:00,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 01:17:00,012 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 01:17:00,025 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-13 01:17:00,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 01:17:00,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 01:17:00,036 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 01:17:00,036 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-13 01:17:00,037 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 01:17:00,037 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 01:17:00,037 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 01:17:00,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 01:17:00,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-10-13 01:17:00,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 01:17:00,038 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 01:17:00,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 01:17:00,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 01:17:00,044 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 01:17:00,049 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 01:17:00,049 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-13 01:17:00,049 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 01:17:00,049 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 01:17:00,050 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 01:17:00,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 01:17:00,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 01:17:00,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 01:17:00,050 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 01:17:00,054 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 01:17:00,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 01:17:00,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 01:17:00,058 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 01:17:00,059 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 01:17:00,059 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 01:17:00,059 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 01:17:00,059 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 01:17:00,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 01:17:00,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 01:17:00,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 01:17:00,060 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 01:17:00,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-13 01:17:00,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 01:17:00,066 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 01:17:00,068 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 01:17:00,068 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 01:17:00,069 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 01:17:00,069 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 01:17:00,069 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 01:17:00,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 01:17:00,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 01:17:00,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 01:17:00,070 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 01:17:00,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 01:17:00,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 01:17:00,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 01:17:00,082 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 01:17:00,082 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 01:17:00,082 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 01:17:00,083 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 01:17:00,083 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 01:17:00,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 01:17:00,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 01:17:00,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 01:17:00,084 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 01:17:00,087 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-13 01:17:00,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 01:17:00,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 01:17:00,199 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 01:17:00,199 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 01:17:00,199 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 01:17:00,200 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 01:17:00,200 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 01:17:00,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 01:17:00,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 01:17:00,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 01:17:00,200 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 01:17:00,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-10-13 01:17:00,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 01:17:00,208 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 01:17:00,210 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 01:17:00,211 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 01:17:00,211 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 01:17:00,211 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 01:17:00,211 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 01:17:00,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 01:17:00,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 01:17:00,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 01:17:00,212 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 01:17:00,236 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-10-13 01:17:00,237 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [759145522] [2020-10-13 01:17:00,237 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 01:17:00,237 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-13 01:17:00,237 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1948411520] [2020-10-13 01:17:00,239 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-13 01:17:00,239 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 01:17:00,239 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-13 01:17:00,240 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-13 01:17:00,240 INFO L87 Difference]: Start difference. First operand 2244 states and 2981 transitions. Second operand 6 states. [2020-10-13 01:17:00,974 WARN L193 SmtUtils]: Spent 715.00 ms on a formula simplification that was a NOOP. DAG size: 400 [2020-10-13 01:17:02,271 WARN L193 SmtUtils]: Spent 764.00 ms on a formula simplification that was a NOOP. DAG size: 402 [2020-10-13 01:17:03,186 WARN L193 SmtUtils]: Spent 840.00 ms on a formula simplification that was a NOOP. DAG size: 399 [2020-10-13 01:17:27,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 01:17:27,815 INFO L93 Difference]: Finished difference Result 7262 states and 9958 transitions. [2020-10-13 01:17:27,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-13 01:17:27,817 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 89 [2020-10-13 01:17:27,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 01:17:27,848 INFO L225 Difference]: With dead ends: 7262 [2020-10-13 01:17:27,848 INFO L226 Difference]: Without dead ends: 5045 [2020-10-13 01:17:27,857 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2020-10-13 01:17:27,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5045 states. [2020-10-13 01:17:28,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5045 to 4030. [2020-10-13 01:17:28,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4030 states. [2020-10-13 01:17:28,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4030 states to 4030 states and 5367 transitions. [2020-10-13 01:17:28,688 INFO L78 Accepts]: Start accepts. Automaton has 4030 states and 5367 transitions. Word has length 89 [2020-10-13 01:17:28,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 01:17:28,688 INFO L479 AbstractCegarLoop]: Abstraction has 4030 states and 5367 transitions. [2020-10-13 01:17:28,689 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-13 01:17:28,689 INFO L276 IsEmpty]: Start isEmpty. Operand 4030 states and 5367 transitions. [2020-10-13 01:17:28,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2020-10-13 01:17:28,702 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 01:17:28,702 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] [2020-10-13 01:17:28,703 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-13 01:17:28,703 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 01:17:28,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 01:17:28,703 INFO L82 PathProgramCache]: Analyzing trace with hash 794159234, now seen corresponding path program 1 times [2020-10-13 01:17:28,703 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 01:17:28,704 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1487355147] [2020-10-13 01:17:28,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 01:17:28,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 01:17:28,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 01:17:28,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 01:17:29,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 01:17:29,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 01:17:31,600 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 01:17:31,601 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 128 [2020-10-13 01:17:31,601 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 01:17:31,601 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2829 [2020-10-13 01:17:31,601 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 01:17:31,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 01:17:31,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 61 [2020-10-13 01:17:31,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 01:17:31,602 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 01:17:32,460 WARN L193 SmtUtils]: Spent 730.00 ms on a formula simplification that was a NOOP. DAG size: 397 [2020-10-13 01:17:32,464 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 01:17:32,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 01:17:32,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 01:17:32,618 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 01:17:32,619 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 01:17:32,619 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 01:17:32,619 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 143 [2020-10-13 01:17:32,619 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 01:17:32,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 01:17:32,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 01:17:32,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 01:17:32,620 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 01:17:32,676 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 01:17:32,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 01:17:32,679 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 01:17:32,684 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 01:17:32,684 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 01:17:32,684 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 01:17:32,685 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 01:17:32,685 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 01:17:32,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 01:17:32,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 01:17:32,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 01:17:32,686 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 01:17:32,691 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 01:17:32,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 01:17:32,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 01:17:32,696 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 01:17:32,697 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 01:17:32,697 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 01:17:32,697 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 01:17:32,697 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 01:17:32,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 01:17:32,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 01:17:32,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 01:17:32,698 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 01:17:32,701 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-13 01:17:32,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 01:17:32,704 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 01:17:32,706 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 01:17:32,706 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 01:17:32,706 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 01:17:32,707 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 01:17:32,707 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 01:17:32,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 01:17:32,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 01:17:32,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 01:17:32,708 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 01:17:32,710 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-13 01:17:32,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 01:17:32,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 01:17:32,715 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 01:17:32,715 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 01:17:32,716 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 01:17:32,716 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 01:17:32,716 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 01:17:32,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 01:17:32,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 01:17:32,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 01:17:32,717 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 01:17:32,765 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-13 01:17:32,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 01:17:32,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 01:17:32,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 01:17:32,838 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 01:17:32,839 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-13 01:17:32,839 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 01:17:32,840 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 67 [2020-10-13 01:17:32,840 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 01:17:32,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 01:17:32,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 01:17:32,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-13 01:17:32,841 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 01:17:32,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 01:17:32,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 01:17:32,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 01:17:32,879 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 01:17:32,880 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 01:17:32,880 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 01:17:32,880 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 01:17:32,880 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 01:17:32,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 01:17:32,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 01:17:32,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 01:17:32,881 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 01:17:32,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-13 01:17:32,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 01:17:32,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 01:17:32,931 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 01:17:32,931 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-13 01:17:32,932 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 01:17:32,932 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 01:17:32,932 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 01:17:32,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 01:17:32,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-13 01:17:32,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 01:17:32,934 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 01:17:32,958 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 01:17:32,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 01:17:32,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 01:17:32,964 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 01:17:32,964 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 01:17:32,965 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 01:17:32,965 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 01:17:32,965 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 01:17:32,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 01:17:32,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 01:17:32,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 01:17:32,967 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 01:17:32,970 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-10-13 01:17:32,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 01:17:32,974 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 01:17:32,977 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 01:17:32,977 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 01:17:32,977 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 01:17:32,978 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 01:17:32,978 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 01:17:32,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 01:17:32,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 01:17:32,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 01:17:32,979 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 01:17:32,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-10-13 01:17:32,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 01:17:32,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 01:17:32,990 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 01:17:32,990 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 01:17:32,990 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 01:17:32,991 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 01:17:32,991 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 01:17:32,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 01:17:32,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 01:17:32,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 01:17:32,992 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 01:17:33,031 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2020-10-13 01:17:33,031 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1487355147] [2020-10-13 01:17:33,032 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 01:17:33,032 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-13 01:17:33,032 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1369229786] [2020-10-13 01:17:33,033 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-13 01:17:33,033 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 01:17:33,034 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-13 01:17:33,034 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2020-10-13 01:17:33,034 INFO L87 Difference]: Start difference. First operand 4030 states and 5367 transitions. Second operand 10 states. [2020-10-13 01:17:34,014 WARN L193 SmtUtils]: Spent 948.00 ms on a formula simplification that was a NOOP. DAG size: 406 [2020-10-13 01:17:51,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 01:17:51,596 INFO L93 Difference]: Finished difference Result 9046 states and 12339 transitions. [2020-10-13 01:17:51,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-13 01:17:51,597 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 92 [2020-10-13 01:17:51,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 01:17:51,626 INFO L225 Difference]: With dead ends: 9046 [2020-10-13 01:17:51,626 INFO L226 Difference]: Without dead ends: 4959 [2020-10-13 01:17:51,641 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2020-10-13 01:17:51,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4959 states. [2020-10-13 01:17:52,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4959 to 3978. [2020-10-13 01:17:52,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3978 states. [2020-10-13 01:17:52,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3978 states to 3978 states and 5275 transitions. [2020-10-13 01:17:52,682 INFO L78 Accepts]: Start accepts. Automaton has 3978 states and 5275 transitions. Word has length 92 [2020-10-13 01:17:52,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 01:17:52,685 INFO L479 AbstractCegarLoop]: Abstraction has 3978 states and 5275 transitions. [2020-10-13 01:17:52,685 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-13 01:17:52,685 INFO L276 IsEmpty]: Start isEmpty. Operand 3978 states and 5275 transitions. [2020-10-13 01:17:52,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2020-10-13 01:17:52,701 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 01:17:52,701 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 01:17:52,702 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-13 01:17:52,702 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 01:17:52,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 01:17:52,703 INFO L82 PathProgramCache]: Analyzing trace with hash 755281778, now seen corresponding path program 1 times [2020-10-13 01:17:52,703 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 01:17:52,703 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [912547345] [2020-10-13 01:17:52,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 01:17:52,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 01:17:52,826 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 01:17:52,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 01:17:53,165 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 01:17:53,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 01:17:53,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 01:17:57,804 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 01:17:57,805 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 198 [2020-10-13 01:17:57,805 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 01:17:57,805 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5023 [2020-10-13 01:17:57,805 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 01:17:57,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 01:17:57,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 111 [2020-10-13 01:17:57,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-13 01:17:57,806 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 01:17:58,997 WARN L193 SmtUtils]: Spent 1.10 s on a formula simplification that was a NOOP. DAG size: 397 [2020-10-13 01:17:58,999 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 01:17:59,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 01:17:59,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 01:17:59,126 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 01:17:59,126 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 01:17:59,126 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 01:17:59,127 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 106 [2020-10-13 01:17:59,127 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 01:17:59,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 01:17:59,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 01:17:59,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 01:17:59,128 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 01:17:59,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 01:17:59,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 01:17:59,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 01:17:59,200 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 01:17:59,200 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 01:17:59,201 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 01:17:59,201 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 01:17:59,201 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 01:17:59,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 01:17:59,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 01:17:59,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 01:17:59,203 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 01:17:59,207 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 01:17:59,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 01:17:59,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 01:17:59,213 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 01:17:59,214 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 01:17:59,214 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 01:17:59,214 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 01:17:59,215 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 01:17:59,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 01:17:59,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 01:17:59,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 01:17:59,216 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 01:17:59,220 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-13 01:17:59,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 01:17:59,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 01:17:59,226 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 01:17:59,227 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 01:17:59,227 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 01:17:59,227 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 01:17:59,228 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 01:17:59,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 01:17:59,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 01:17:59,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 01:17:59,229 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 01:17:59,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-13 01:17:59,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 01:17:59,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 01:17:59,239 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 01:17:59,239 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 01:17:59,240 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 01:17:59,240 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 01:17:59,240 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 01:17:59,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 01:17:59,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 01:17:59,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 01:17:59,242 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 01:17:59,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-13 01:17:59,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 01:17:59,328 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 01:17:59,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 01:17:59,574 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 01:17:59,575 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-13 01:17:59,575 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 01:17:59,575 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 255 [2020-10-13 01:17:59,576 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 01:17:59,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 01:17:59,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 01:17:59,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 83 [2020-10-13 01:17:59,577 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 01:17:59,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 01:17:59,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 01:17:59,674 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 01:17:59,677 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 01:17:59,677 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 01:17:59,677 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 01:17:59,678 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 01:17:59,678 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 01:17:59,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 01:17:59,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 01:17:59,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 01:17:59,680 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 01:17:59,691 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 01:17:59,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 01:17:59,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 01:17:59,696 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 01:17:59,696 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 01:17:59,697 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 01:17:59,697 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 01:17:59,697 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 01:17:59,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 01:17:59,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 01:17:59,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 01:17:59,699 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 01:17:59,724 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-10-13 01:17:59,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 01:17:59,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 01:17:59,736 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 01:17:59,737 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-13 01:17:59,737 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 01:17:59,737 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 01:17:59,737 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 01:17:59,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 01:17:59,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 01:17:59,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 01:17:59,738 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 01:17:59,744 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 01:17:59,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 01:17:59,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 01:17:59,749 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 01:17:59,749 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 01:17:59,750 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 01:17:59,750 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 01:17:59,750 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 01:17:59,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 01:17:59,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 01:17:59,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 01:17:59,751 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 01:17:59,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 01:17:59,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 01:17:59,759 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 01:17:59,764 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 01:17:59,764 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-13 01:17:59,765 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 01:17:59,765 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 01:17:59,765 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 01:17:59,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 01:17:59,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 01:17:59,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 01:17:59,766 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 01:17:59,770 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 01:17:59,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 01:17:59,773 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 01:17:59,777 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 01:17:59,777 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 01:17:59,777 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 01:17:59,778 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 01:17:59,778 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 01:17:59,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 01:17:59,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 01:17:59,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 01:17:59,779 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 01:17:59,782 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 01:17:59,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 01:17:59,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 01:17:59,787 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 01:17:59,787 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 01:17:59,788 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 01:17:59,788 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 01:17:59,788 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 01:17:59,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 01:17:59,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 01:17:59,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 01:17:59,789 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 01:17:59,793 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-13 01:17:59,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 01:17:59,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 01:17:59,800 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 01:17:59,801 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 01:17:59,801 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 01:17:59,801 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 01:17:59,801 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 01:17:59,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 01:17:59,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 01:17:59,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-13 01:17:59,802 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 01:17:59,833 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-13 01:17:59,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 01:17:59,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 01:17:59,845 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 01:17:59,845 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 01:17:59,845 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 01:17:59,846 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 01:17:59,846 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 01:17:59,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 01:17:59,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 01:17:59,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-13 01:17:59,847 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 01:17:59,851 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 01:17:59,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 01:17:59,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 01:17:59,855 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 01:17:59,855 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 01:17:59,855 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 01:17:59,855 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 01:17:59,855 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 01:17:59,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 01:17:59,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 01:17:59,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 01:17:59,856 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 01:17:59,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-13 01:17:59,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 01:17:59,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 01:17:59,896 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 01:17:59,897 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-13 01:17:59,897 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 01:17:59,897 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 01:17:59,897 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 01:17:59,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 01:17:59,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-13 01:17:59,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 01:17:59,898 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 01:17:59,920 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 01:17:59,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 01:17:59,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 01:17:59,923 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 01:17:59,924 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 01:17:59,924 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 01:17:59,924 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 01:17:59,924 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 01:17:59,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 01:17:59,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 01:17:59,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 01:17:59,925 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 01:17:59,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-10-13 01:17:59,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 01:17:59,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 01:17:59,931 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 01:17:59,931 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 01:17:59,931 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 01:17:59,932 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 01:17:59,932 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 01:17:59,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 01:17:59,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 01:17:59,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 01:17:59,933 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 01:17:59,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-10-13 01:17:59,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 01:17:59,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 01:17:59,939 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 01:17:59,939 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 01:17:59,940 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 01:17:59,940 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 01:17:59,940 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 01:17:59,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 01:17:59,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 01:17:59,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 01:17:59,941 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 01:17:59,987 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2020-10-13 01:17:59,988 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [912547345] [2020-10-13 01:17:59,988 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 01:17:59,988 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-13 01:17:59,988 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1329874988] [2020-10-13 01:17:59,989 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 01:17:59,989 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 01:17:59,990 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 01:17:59,990 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2020-10-13 01:17:59,990 INFO L87 Difference]: Start difference. First operand 3978 states and 5275 transitions. Second operand 13 states. [2020-10-13 01:18:00,797 WARN L193 SmtUtils]: Spent 779.00 ms on a formula simplification that was a NOOP. DAG size: 406 [2020-10-13 01:18:20,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 01:18:20,933 INFO L93 Difference]: Finished difference Result 8961 states and 12203 transitions. [2020-10-13 01:18:20,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-13 01:18:20,935 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 144 [2020-10-13 01:18:20,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 01:18:20,977 INFO L225 Difference]: With dead ends: 8961 [2020-10-13 01:18:20,977 INFO L226 Difference]: Without dead ends: 4920 [2020-10-13 01:18:21,000 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=73, Invalid=307, Unknown=0, NotChecked=0, Total=380 [2020-10-13 01:18:21,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4920 states. [2020-10-13 01:18:22,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4920 to 3954. [2020-10-13 01:18:22,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3954 states. [2020-10-13 01:18:22,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3954 states to 3954 states and 5223 transitions. [2020-10-13 01:18:22,440 INFO L78 Accepts]: Start accepts. Automaton has 3954 states and 5223 transitions. Word has length 144 [2020-10-13 01:18:22,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 01:18:22,441 INFO L479 AbstractCegarLoop]: Abstraction has 3954 states and 5223 transitions. [2020-10-13 01:18:22,441 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 01:18:22,441 INFO L276 IsEmpty]: Start isEmpty. Operand 3954 states and 5223 transitions. [2020-10-13 01:18:22,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2020-10-13 01:18:22,453 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 01:18:22,453 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 01:18:22,454 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-13 01:18:22,454 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 01:18:22,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 01:18:22,455 INFO L82 PathProgramCache]: Analyzing trace with hash 880499997, now seen corresponding path program 1 times [2020-10-13 01:18:22,457 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 01:18:22,457 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1698884739] [2020-10-13 01:18:22,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 01:18:22,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 01:18:22,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 01:18:22,646 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 01:18:22,935 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 01:18:23,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 01:18:23,221 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 01:18:24,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 01:18:25,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 01:18:27,574 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 01:18:27,575 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 206 [2020-10-13 01:18:27,575 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-13 01:18:27,575 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5054 [2020-10-13 01:18:27,575 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 01:18:27,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 01:18:27,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 119 [2020-10-13 01:18:27,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-13 01:18:27,576 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 01:18:28,654 WARN L193 SmtUtils]: Spent 959.00 ms on a formula simplification that was a NOOP. DAG size: 397 [2020-10-13 01:18:28,655 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 01:18:28,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 01:18:28,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 01:18:28,801 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 01:18:28,801 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 01:18:28,801 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 01:18:28,801 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 131 [2020-10-13 01:18:28,802 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 01:18:28,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 01:18:28,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 01:18:28,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 01:18:28,803 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 01:18:28,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 01:18:28,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 01:18:28,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 01:18:28,854 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 01:18:28,855 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 01:18:28,855 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 01:18:28,855 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 01:18:28,855 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 01:18:28,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 01:18:28,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 01:18:28,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 01:18:28,856 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 01:18:28,858 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 01:18:28,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 01:18:28,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 01:18:28,863 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 01:18:28,863 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 01:18:28,863 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 01:18:28,863 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 01:18:28,864 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 01:18:28,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 01:18:28,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 01:18:28,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 01:18:28,864 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 01:18:28,868 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-13 01:18:28,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 01:18:28,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 01:18:28,872 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 01:18:28,872 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 01:18:28,872 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 01:18:28,872 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 01:18:28,872 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 01:18:28,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 01:18:28,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 01:18:28,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 01:18:28,873 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 01:18:28,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-13 01:18:28,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 01:18:28,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 01:18:28,878 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 01:18:28,878 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 01:18:28,878 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 01:18:28,878 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 01:18:28,878 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 01:18:28,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 01:18:28,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 01:18:28,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 01:18:28,879 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 01:18:28,922 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-13 01:18:28,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 01:18:28,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 01:18:28,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 01:18:29,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 01:18:29,492 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 01:18:29,492 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 95 [2020-10-13 01:18:29,493 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 01:18:29,493 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 559 [2020-10-13 01:18:29,493 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 01:18:29,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 01:18:29,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 55 [2020-10-13 01:18:29,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 01:18:29,494 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 01:18:29,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 01:18:29,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 01:18:29,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 01:18:29,560 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 01:18:29,560 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 01:18:29,560 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 01:18:29,561 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 01:18:29,561 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 01:18:29,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 01:18:29,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 01:18:29,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 01:18:29,562 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 01:18:29,564 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 01:18:29,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 01:18:29,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 01:18:29,570 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 01:18:29,570 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 01:18:29,570 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 01:18:29,570 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 01:18:29,571 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 01:18:29,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 01:18:29,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 01:18:29,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 01:18:29,571 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 01:18:29,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-10-13 01:18:29,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 01:18:29,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 01:18:29,631 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 01:18:29,631 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-13 01:18:29,631 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 01:18:29,632 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-13 01:18:29,632 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 01:18:29,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 01:18:29,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 01:18:29,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-10-13 01:18:29,633 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 01:18:29,661 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 01:18:29,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 01:18:29,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 01:18:29,664 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 01:18:29,665 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 01:18:29,665 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 01:18:29,665 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 01:18:29,665 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 01:18:29,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 01:18:29,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 01:18:29,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 01:18:29,666 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 01:18:29,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 01:18:29,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 01:18:29,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 01:18:29,677 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 01:18:29,678 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-13 01:18:29,678 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 01:18:29,678 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 01:18:29,678 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 01:18:29,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 01:18:29,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 01:18:29,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 01:18:29,679 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 01:18:29,683 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 01:18:29,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 01:18:29,686 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 01:18:29,690 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 01:18:29,690 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 01:18:29,690 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 01:18:29,691 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 01:18:29,691 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 01:18:29,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 01:18:29,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 01:18:29,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 01:18:29,692 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 01:18:29,694 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 01:18:29,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 01:18:29,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 01:18:29,700 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 01:18:29,700 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 01:18:29,700 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 01:18:29,701 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 01:18:29,701 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 01:18:29,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 01:18:29,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 01:18:29,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 01:18:29,702 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 01:18:29,705 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-13 01:18:29,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 01:18:29,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 01:18:29,709 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 01:18:29,710 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 01:18:29,710 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 01:18:29,710 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 01:18:29,710 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 01:18:29,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 01:18:29,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 01:18:29,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 01:18:29,711 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 01:18:29,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-13 01:18:29,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 01:18:29,715 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 01:18:29,716 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 01:18:29,716 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 01:18:29,716 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 01:18:29,717 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 01:18:29,717 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 01:18:29,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 01:18:29,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-13 01:18:29,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 01:18:29,718 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 01:18:29,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-13 01:18:29,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 01:18:29,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 01:18:29,754 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 01:18:29,754 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 01:18:29,754 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 01:18:29,754 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 01:18:29,755 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 01:18:29,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 01:18:29,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-13 01:18:29,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 01:18:29,755 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 01:18:29,758 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 01:18:29,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 01:18:29,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 01:18:29,762 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 01:18:29,762 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 01:18:29,762 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 01:18:29,762 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 01:18:29,763 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 01:18:29,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 01:18:29,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 01:18:29,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 01:18:29,763 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 01:18:29,795 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2020-10-13 01:18:29,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 01:18:29,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 01:18:29,805 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 01:18:29,805 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-13 01:18:29,805 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 01:18:29,805 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 01:18:29,805 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 01:18:29,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 01:18:29,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-13 01:18:29,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 01:18:29,806 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 01:18:29,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 01:18:29,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 01:18:29,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 01:18:29,836 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 01:18:29,836 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 01:18:29,836 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 01:18:29,836 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 01:18:29,837 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 01:18:29,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 01:18:29,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 01:18:29,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 01:18:29,837 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 01:18:29,840 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-10-13 01:18:29,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 01:18:29,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 01:18:29,843 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 01:18:29,843 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 01:18:29,844 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 01:18:29,844 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 01:18:29,844 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 01:18:29,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 01:18:29,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 01:18:29,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 01:18:29,845 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 01:18:29,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-10-13 01:18:29,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 01:18:29,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 01:18:29,853 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 01:18:29,853 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 01:18:29,853 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 01:18:29,854 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 01:18:29,854 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 01:18:29,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 01:18:29,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 01:18:29,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 01:18:29,854 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 01:18:29,904 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2020-10-13 01:18:29,904 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1698884739] [2020-10-13 01:18:29,904 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 01:18:29,905 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-13 01:18:29,905 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [631259717] [2020-10-13 01:18:29,905 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-13 01:18:29,906 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 01:18:29,906 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-13 01:18:29,906 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2020-10-13 01:18:29,906 INFO L87 Difference]: Start difference. First operand 3954 states and 5223 transitions. Second operand 14 states. [2020-10-13 01:18:30,709 WARN L193 SmtUtils]: Spent 774.00 ms on a formula simplification that was a NOOP. DAG size: 406 [2020-10-13 01:18:34,443 WARN L193 SmtUtils]: Spent 841.00 ms on a formula simplification that was a NOOP. DAG size: 409 [2020-10-13 01:18:35,426 WARN L193 SmtUtils]: Spent 838.00 ms on a formula simplification that was a NOOP. DAG size: 400 [2020-10-13 01:18:42,290 WARN L193 SmtUtils]: Spent 833.00 ms on a formula simplification that was a NOOP. DAG size: 413 [2020-10-13 01:18:43,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 01:18:43,942 INFO L93 Difference]: Finished difference Result 4334 states and 5731 transitions. [2020-10-13 01:18:43,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-13 01:18:43,945 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 150 [2020-10-13 01:18:43,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 01:18:43,945 INFO L225 Difference]: With dead ends: 4334 [2020-10-13 01:18:43,945 INFO L226 Difference]: Without dead ends: 0 [2020-10-13 01:18:43,958 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=135, Invalid=465, Unknown=0, NotChecked=0, Total=600 [2020-10-13 01:18:43,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-13 01:18:43,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-13 01:18:43,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-13 01:18:43,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-13 01:18:43,959 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 150 [2020-10-13 01:18:43,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 01:18:43,960 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-13 01:18:43,960 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-13 01:18:43,960 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-13 01:18:43,960 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-13 01:18:43,960 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-13 01:18:43,963 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-13 01:18:44,171 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 414 [2020-10-13 01:18:44,321 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 414 [2020-10-13 01:18:44,452 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 406 [2020-10-13 01:18:44,595 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 414 [2020-10-13 01:18:44,774 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 410 [2020-10-13 01:18:44,994 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 411 [2020-10-13 01:18:45,862 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 424 DAG size of output: 22 [2020-10-13 01:18:46,066 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 426 DAG size of output: 22 [2020-10-13 01:18:46,311 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 428 DAG size of output: 27 [2020-10-13 01:18:46,559 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 425 DAG size of output: 25 [2020-10-13 01:18:46,834 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 427 DAG size of output: 25 [2020-10-13 01:18:46,971 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 422 DAG size of output: 18 [2020-10-13 01:18:47,166 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 428 DAG size of output: 27 [2020-10-13 01:18:47,374 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 426 DAG size of output: 22 [2020-10-13 01:18:47,669 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification. DAG size of input: 427 DAG size of output: 24 [2020-10-13 01:18:47,893 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 427 DAG size of output: 24 [2020-10-13 01:18:48,063 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 424 DAG size of output: 23 [2020-10-13 01:18:48,402 WARN L193 SmtUtils]: Spent 318.00 ms on a formula simplification. DAG size of input: 433 DAG size of output: 32 [2020-10-13 01:18:48,602 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 427 DAG size of output: 25 [2020-10-13 01:18:48,807 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 433 DAG size of output: 32 [2020-10-13 01:18:48,942 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 433 DAG size of output: 32 [2020-10-13 01:18:49,534 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 417 DAG size of output: 414 [2020-10-13 01:18:49,674 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 417 DAG size of output: 414 [2020-10-13 01:18:49,870 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 417 DAG size of output: 414 [2020-10-13 01:18:50,375 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 433 DAG size of output: 23 [2020-10-13 01:18:50,560 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 426 DAG size of output: 22 [2020-10-13 01:18:50,778 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 425 DAG size of output: 25 [2020-10-13 01:18:50,889 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 427 DAG size of output: 25 [2020-10-13 01:18:51,062 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 428 DAG size of output: 27 [2020-10-13 01:18:51,175 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 426 DAG size of output: 22 [2020-10-13 01:18:51,280 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 427 DAG size of output: 24 [2020-10-13 01:18:51,388 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 427 DAG size of output: 24 [2020-10-13 01:18:51,608 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 433 DAG size of output: 32 [2020-10-13 01:18:51,728 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 427 DAG size of output: 25 [2020-10-13 01:18:52,196 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 426 DAG size of output: 22 [2020-10-13 01:18:52,299 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 428 DAG size of output: 27 [2020-10-13 01:18:52,542 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 427 DAG size of output: 25