/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-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wan--x25_asy.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-13 00:44:26,870 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-13 00:44:26,874 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-13 00:44:26,918 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-13 00:44:26,918 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-13 00:44:26,927 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-13 00:44:26,929 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-13 00:44:26,933 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-13 00:44:26,935 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-13 00:44:26,939 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-13 00:44:26,940 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-13 00:44:26,941 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-13 00:44:26,941 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-13 00:44:26,944 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-13 00:44:26,946 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-13 00:44:26,948 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-13 00:44:26,949 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-13 00:44:26,951 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-13 00:44:26,952 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-13 00:44:26,961 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-13 00:44:26,963 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-13 00:44:26,964 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-13 00:44:26,965 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-13 00:44:26,966 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-13 00:44:26,982 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-13 00:44:26,982 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-13 00:44:26,982 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-13 00:44:26,983 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-13 00:44:26,983 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-13 00:44:26,986 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-13 00:44:26,986 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-13 00:44:26,987 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-13 00:44:26,988 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-13 00:44:26,988 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-13 00:44:26,993 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-13 00:44:26,993 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-13 00:44:26,997 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-13 00:44:26,997 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-13 00:44:26,997 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-13 00:44:26,998 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-13 00:44:26,998 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-13 00:44:27,000 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 00:44:27,036 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-13 00:44:27,036 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-13 00:44:27,038 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-13 00:44:27,038 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-13 00:44:27,039 INFO L138 SettingsManager]: * Use SBE=true [2020-10-13 00:44:27,039 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-13 00:44:27,039 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-13 00:44:27,039 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-13 00:44:27,040 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-13 00:44:27,040 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-13 00:44:27,041 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-13 00:44:27,041 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-13 00:44:27,041 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-13 00:44:27,042 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-13 00:44:27,042 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-13 00:44:27,042 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-13 00:44:27,042 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-13 00:44:27,042 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-13 00:44:27,043 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-13 00:44:27,043 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-13 00:44:27,043 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-13 00:44:27,043 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-13 00:44:27,044 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-13 00:44:27,044 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-13 00:44:27,044 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-13 00:44:27,044 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-13 00:44:27,044 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-13 00:44:27,044 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 00:44:27,352 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-13 00:44:27,364 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-13 00:44:27,368 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-13 00:44:27,369 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-13 00:44:27,370 INFO L275 PluginConnector]: CDTParser initialized [2020-10-13 00:44:27,370 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wan--x25_asy.ko-entry_point.cil.out.i [2020-10-13 00:44:27,433 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/695b940b2/f3b82eac70fa4a6c91ec1475795cc7c0/FLAG11eade0f5 [2020-10-13 00:44:28,217 INFO L306 CDTParser]: Found 1 translation units. [2020-10-13 00:44:28,218 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wan--x25_asy.ko-entry_point.cil.out.i [2020-10-13 00:44:28,250 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/695b940b2/f3b82eac70fa4a6c91ec1475795cc7c0/FLAG11eade0f5 [2020-10-13 00:44:28,282 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/695b940b2/f3b82eac70fa4a6c91ec1475795cc7c0 [2020-10-13 00:44:28,290 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-13 00:44:28,292 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-13 00:44:28,294 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-13 00:44:28,295 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-13 00:44:28,298 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-13 00:44:28,299 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:44:28" (1/1) ... [2020-10-13 00:44:28,302 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@57f460fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:44:28, skipping insertion in model container [2020-10-13 00:44:28,302 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:44:28" (1/1) ... [2020-10-13 00:44:28,310 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-13 00:44:28,435 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-13 00:44:30,137 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 00:44:30,161 INFO L203 MainTranslator]: Completed pre-run [2020-10-13 00:44:30,415 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 00:44:30,830 INFO L208 MainTranslator]: Completed translation [2020-10-13 00:44:30,830 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:44:30 WrapperNode [2020-10-13 00:44:30,830 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-13 00:44:30,832 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-13 00:44:30,832 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-13 00:44:30,832 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-13 00:44:30,847 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:44:30" (1/1) ... [2020-10-13 00:44:30,847 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:44:30" (1/1) ... [2020-10-13 00:44:30,934 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:44:30" (1/1) ... [2020-10-13 00:44:30,935 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:44:30" (1/1) ... [2020-10-13 00:44:31,039 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:44:30" (1/1) ... [2020-10-13 00:44:31,054 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:44:30" (1/1) ... [2020-10-13 00:44:31,080 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:44:30" (1/1) ... [2020-10-13 00:44:31,119 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-13 00:44:31,120 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-13 00:44:31,120 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-13 00:44:31,120 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-13 00:44:31,122 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:44:30" (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 00:44:31,203 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-13 00:44:31,203 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-13 00:44:31,204 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~int [2020-10-13 00:44:31,204 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2020-10-13 00:44:31,204 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2020-10-13 00:44:31,204 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2020-10-13 00:44:31,205 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_clear_bit [2020-10-13 00:44:31,205 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2020-10-13 00:44:31,206 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2020-10-13 00:44:31,206 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2020-10-13 00:44:31,207 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_bh [2020-10-13 00:44:31,207 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2020-10-13 00:44:31,207 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_bh [2020-10-13 00:44:31,207 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2020-10-13 00:44:31,207 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2020-10-13 00:44:31,208 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc_array [2020-10-13 00:44:31,208 INFO L138 BoogieDeclarations]: Found implementation of procedure kcalloc [2020-10-13 00:44:31,210 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2020-10-13 00:44:31,210 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reset_mac_header [2020-10-13 00:44:31,211 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-13 00:44:31,211 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-10-13 00:44:31,211 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2020-10-13 00:44:31,211 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2020-10-13 00:44:31,211 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2020-10-13 00:44:31,212 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2020-10-13 00:44:31,212 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2020-10-13 00:44:31,212 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2020-10-13 00:44:31,212 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2020-10-13 00:44:31,212 INFO L138 BoogieDeclarations]: Found implementation of procedure compat_ptr [2020-10-13 00:44:31,213 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2020-10-13 00:44:31,213 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2020-10-13 00:44:31,213 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2020-10-13 00:44:31,213 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2020-10-13 00:44:31,213 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_wake_queue [2020-10-13 00:44:31,213 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2020-10-13 00:44:31,213 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_stop_queue [2020-10-13 00:44:31,214 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2020-10-13 00:44:31,214 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_queue_stopped [2020-10-13 00:44:31,214 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_queue_stopped [2020-10-13 00:44:31,214 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2020-10-13 00:44:31,216 INFO L138 BoogieDeclarations]: Found implementation of procedure x25_type_trans [2020-10-13 00:44:31,216 INFO L138 BoogieDeclarations]: Found implementation of procedure x25_asy_alloc [2020-10-13 00:44:31,216 INFO L138 BoogieDeclarations]: Found implementation of procedure x25_asy_free [2020-10-13 00:44:31,217 INFO L138 BoogieDeclarations]: Found implementation of procedure x25_asy_change_mtu [2020-10-13 00:44:31,217 INFO L138 BoogieDeclarations]: Found implementation of procedure x25_asy_lock [2020-10-13 00:44:31,217 INFO L138 BoogieDeclarations]: Found implementation of procedure x25_asy_unlock [2020-10-13 00:44:31,217 INFO L138 BoogieDeclarations]: Found implementation of procedure x25_asy_bump [2020-10-13 00:44:31,217 INFO L138 BoogieDeclarations]: Found implementation of procedure x25_asy_encaps [2020-10-13 00:44:31,217 INFO L138 BoogieDeclarations]: Found implementation of procedure x25_asy_write_wakeup [2020-10-13 00:44:31,218 INFO L138 BoogieDeclarations]: Found implementation of procedure x25_asy_timeout [2020-10-13 00:44:31,218 INFO L138 BoogieDeclarations]: Found implementation of procedure x25_asy_xmit [2020-10-13 00:44:31,218 INFO L138 BoogieDeclarations]: Found implementation of procedure x25_asy_data_indication [2020-10-13 00:44:31,218 INFO L138 BoogieDeclarations]: Found implementation of procedure x25_asy_data_transmit [2020-10-13 00:44:31,219 INFO L138 BoogieDeclarations]: Found implementation of procedure x25_asy_connected [2020-10-13 00:44:31,219 INFO L138 BoogieDeclarations]: Found implementation of procedure x25_asy_disconnected [2020-10-13 00:44:31,219 INFO L138 BoogieDeclarations]: Found implementation of procedure x25_asy_open [2020-10-13 00:44:31,219 INFO L138 BoogieDeclarations]: Found implementation of procedure x25_asy_close [2020-10-13 00:44:31,219 INFO L138 BoogieDeclarations]: Found implementation of procedure x25_asy_receive_buf [2020-10-13 00:44:31,220 INFO L138 BoogieDeclarations]: Found implementation of procedure x25_asy_open_tty [2020-10-13 00:44:31,220 INFO L138 BoogieDeclarations]: Found implementation of procedure x25_asy_close_tty [2020-10-13 00:44:31,220 INFO L138 BoogieDeclarations]: Found implementation of procedure x25_asy_esc [2020-10-13 00:44:31,220 INFO L138 BoogieDeclarations]: Found implementation of procedure x25_asy_unesc [2020-10-13 00:44:31,220 INFO L138 BoogieDeclarations]: Found implementation of procedure x25_asy_ioctl [2020-10-13 00:44:31,220 INFO L138 BoogieDeclarations]: Found implementation of procedure x25_asy_compat_ioctl [2020-10-13 00:44:31,221 INFO L138 BoogieDeclarations]: Found implementation of procedure x25_asy_open_dev [2020-10-13 00:44:31,221 INFO L138 BoogieDeclarations]: Found implementation of procedure x25_asy_setup [2020-10-13 00:44:31,221 INFO L138 BoogieDeclarations]: Found implementation of procedure init_x25_asy [2020-10-13 00:44:31,221 INFO L138 BoogieDeclarations]: Found implementation of procedure exit_x25_asy [2020-10-13 00:44:31,221 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_target_type_1 [2020-10-13 00:44:31,222 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_lapb_register_struct_3 [2020-10-13 00:44:31,222 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_net_device_ops_2 [2020-10-13 00:44:31,222 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-13 00:44:31,223 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_consume_skb_5 [2020-10-13 00:44:31,224 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_6 [2020-10-13 00:44:31,224 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_7 [2020-10-13 00:44:31,224 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_8 [2020-10-13 00:44:31,224 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_11 [2020-10-13 00:44:31,224 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_register_netdev_12 [2020-10-13 00:44:31,225 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev_13 [2020-10-13 00:44:31,225 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_alloc_skb_14 [2020-10-13 00:44:31,225 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_15 [2020-10-13 00:44:31,225 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_netif_rx_16 [2020-10-13 00:44:31,225 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_17 [2020-10-13 00:44:31,225 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_18 [2020-10-13 00:44:31,226 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_19 [2020-10-13 00:44:31,226 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_20 [2020-10-13 00:44:31,227 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_netif_rx_21 [2020-10-13 00:44:31,227 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_22 [2020-10-13 00:44:31,227 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_netif_rx_24 [2020-10-13 00:44:31,227 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_netif_rx_26 [2020-10-13 00:44:31,227 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_netdev_27 [2020-10-13 00:44:31,227 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev_28 [2020-10-13 00:44:31,228 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_init [2020-10-13 00:44:31,231 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_add [2020-10-13 00:44:31,231 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_remove [2020-10-13 00:44:31,231 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_contains [2020-10-13 00:44:31,231 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_is_empty [2020-10-13 00:44:31,232 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2020-10-13 00:44:31,232 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_err_ptr [2020-10-13 00:44:31,232 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ptr_err [2020-10-13 00:44:31,232 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err_or_null [2020-10-13 00:44:31,232 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_alloc [2020-10-13 00:44:31,232 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2020-10-13 00:44:31,232 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free [2020-10-13 00:44:31,233 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free_int [2020-10-13 00:44:31,233 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_alloc_skb [2020-10-13 00:44:31,233 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_netdev_alloc_skb [2020-10-13 00:44:31,233 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_current [2020-10-13 00:44:31,233 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2020-10-13 00:44:31,233 INFO L138 BoogieDeclarations]: Found implementation of procedure __copy_to_user_overflow [2020-10-13 00:44:31,234 INFO L138 BoogieDeclarations]: Found implementation of procedure __netif_schedule [2020-10-13 00:44:31,234 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2020-10-13 00:44:31,234 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2020-10-13 00:44:31,234 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock [2020-10-13 00:44:31,234 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_bh [2020-10-13 00:44:31,235 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock [2020-10-13 00:44:31,235 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock_bh [2020-10-13 00:44:31,235 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_netdev_mqs [2020-10-13 00:44:31,235 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_close [2020-10-13 00:44:31,235 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2020-10-13 00:44:31,236 INFO L138 BoogieDeclarations]: Found implementation of procedure lapb_connect_request [2020-10-13 00:44:31,236 INFO L138 BoogieDeclarations]: Found implementation of procedure lapb_data_received [2020-10-13 00:44:31,236 INFO L138 BoogieDeclarations]: Found implementation of procedure lapb_data_request [2020-10-13 00:44:31,236 INFO L138 BoogieDeclarations]: Found implementation of procedure lapb_disconnect_request [2020-10-13 00:44:31,236 INFO L138 BoogieDeclarations]: Found implementation of procedure lapb_register [2020-10-13 00:44:31,238 INFO L138 BoogieDeclarations]: Found implementation of procedure lapb_unregister [2020-10-13 00:44:31,238 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ndo_init_2 [2020-10-13 00:44:31,238 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ndo_uninit_2 [2020-10-13 00:44:31,239 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_probe_3 [2020-10-13 00:44:31,242 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2020-10-13 00:44:31,242 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_err [2020-10-13 00:44:31,242 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_warn [2020-10-13 00:44:31,242 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2020-10-13 00:44:31,243 INFO L138 BoogieDeclarations]: Found implementation of procedure register_netdev [2020-10-13 00:44:31,243 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_lock [2020-10-13 00:44:31,243 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_unlock [2020-10-13 00:44:31,244 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_pull [2020-10-13 00:44:31,244 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_push [2020-10-13 00:44:31,244 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2020-10-13 00:44:31,244 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_chars_in_buffer [2020-10-13 00:44:31,244 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_driver_flush_buffer [2020-10-13 00:44:31,244 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_hangup [2020-10-13 00:44:31,244 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_ldisc_flush [2020-10-13 00:44:31,245 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_mode_ioctl [2020-10-13 00:44:31,245 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_register_ldisc [2020-10-13 00:44:31,253 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_unregister_ldisc [2020-10-13 00:44:31,253 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2020-10-13 00:44:31,253 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2020-10-13 00:44:31,254 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2020-10-13 00:44:31,254 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2020-10-13 00:44:31,254 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2020-10-13 00:44:31,254 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-13 00:44:31,254 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2020-10-13 00:44:31,254 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2020-10-13 00:44:31,254 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2020-10-13 00:44:31,254 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2020-10-13 00:44:31,255 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_clear_bit [2020-10-13 00:44:31,255 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2020-10-13 00:44:31,255 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-13 00:44:31,256 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2020-10-13 00:44:31,256 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2020-10-13 00:44:31,256 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2020-10-13 00:44:31,256 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2020-10-13 00:44:31,256 INFO L130 BoogieDeclarations]: Found specification of procedure strlen [2020-10-13 00:44:31,256 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2020-10-13 00:44:31,256 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2020-10-13 00:44:31,257 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock [2020-10-13 00:44:31,257 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_bh [2020-10-13 00:44:31,257 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock [2020-10-13 00:44:31,257 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock_bh [2020-10-13 00:44:31,257 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2020-10-13 00:44:31,257 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2020-10-13 00:44:31,257 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_bh [2020-10-13 00:44:31,258 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2020-10-13 00:44:31,258 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_bh [2020-10-13 00:44:31,258 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2020-10-13 00:44:31,258 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-10-13 00:44:31,258 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2020-10-13 00:44:31,258 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2020-10-13 00:44:31,258 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc_array [2020-10-13 00:44:31,258 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_calloc [2020-10-13 00:44:31,259 INFO L130 BoogieDeclarations]: Found specification of procedure kcalloc [2020-10-13 00:44:31,259 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2020-10-13 00:44:31,259 INFO L130 BoogieDeclarations]: Found specification of procedure __copy_to_user_overflow [2020-10-13 00:44:31,259 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2020-10-13 00:44:31,260 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_6 [2020-10-13 00:44:31,260 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_7 [2020-10-13 00:44:31,260 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_8 [2020-10-13 00:44:31,260 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_11 [2020-10-13 00:44:31,260 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_15 [2020-10-13 00:44:31,260 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_17 [2020-10-13 00:44:31,260 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_18 [2020-10-13 00:44:31,260 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_19 [2020-10-13 00:44:31,260 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_20 [2020-10-13 00:44:31,261 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_22 [2020-10-13 00:44:31,261 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_consume_skb_5 [2020-10-13 00:44:31,261 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2020-10-13 00:44:31,261 INFO L130 BoogieDeclarations]: Found specification of procedure skb_push [2020-10-13 00:44:31,261 INFO L130 BoogieDeclarations]: Found specification of procedure skb_pull [2020-10-13 00:44:31,261 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reset_mac_header [2020-10-13 00:44:31,261 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-13 00:44:31,261 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-13 00:44:31,261 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_alloc_skb_14 [2020-10-13 00:44:31,262 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_alloc [2020-10-13 00:44:31,262 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free [2020-10-13 00:44:31,262 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free_int [2020-10-13 00:44:31,262 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-13 00:44:31,262 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-10-13 00:44:31,262 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-13 00:44:31,262 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2020-10-13 00:44:31,262 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2020-10-13 00:44:31,263 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-13 00:44:31,263 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-13 00:44:31,263 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-13 00:44:31,263 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2020-10-13 00:44:31,263 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2020-10-13 00:44:31,263 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2020-10-13 00:44:31,263 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2020-10-13 00:44:31,265 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2020-10-13 00:44:31,265 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2020-10-13 00:44:31,265 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2020-10-13 00:44:31,265 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_target_type_1 [2020-10-13 00:44:31,265 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_lapb_register_struct_3 [2020-10-13 00:44:31,266 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_net_device_ops_2 [2020-10-13 00:44:31,266 INFO L130 BoogieDeclarations]: Found specification of procedure tty_chars_in_buffer [2020-10-13 00:44:31,266 INFO L130 BoogieDeclarations]: Found specification of procedure tty_driver_flush_buffer [2020-10-13 00:44:31,266 INFO L130 BoogieDeclarations]: Found specification of procedure tty_hangup [2020-10-13 00:44:31,266 INFO L130 BoogieDeclarations]: Found specification of procedure tty_ldisc_flush [2020-10-13 00:44:31,267 INFO L130 BoogieDeclarations]: Found specification of procedure tty_mode_ioctl [2020-10-13 00:44:31,267 INFO L130 BoogieDeclarations]: Found specification of procedure tty_register_ldisc [2020-10-13 00:44:31,267 INFO L130 BoogieDeclarations]: Found specification of procedure tty_unregister_ldisc [2020-10-13 00:44:31,267 INFO L130 BoogieDeclarations]: Found specification of procedure compat_ptr [2020-10-13 00:44:31,267 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2020-10-13 00:44:31,267 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2020-10-13 00:44:31,268 INFO L130 BoogieDeclarations]: Found specification of procedure dev_close [2020-10-13 00:44:31,268 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2020-10-13 00:44:31,268 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev_13 [2020-10-13 00:44:31,268 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev_28 [2020-10-13 00:44:31,268 INFO L130 BoogieDeclarations]: Found specification of procedure __netif_schedule [2020-10-13 00:44:31,268 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2020-10-13 00:44:31,268 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2020-10-13 00:44:31,268 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_wake_queue [2020-10-13 00:44:31,269 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2020-10-13 00:44:31,269 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_stop_queue [2020-10-13 00:44:31,269 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-13 00:44:31,269 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2020-10-13 00:44:31,269 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_queue_stopped [2020-10-13 00:44:31,270 INFO L130 BoogieDeclarations]: Found specification of procedure netif_queue_stopped [2020-10-13 00:44:31,270 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2020-10-13 00:44:31,270 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_netif_rx_16 [2020-10-13 00:44:31,271 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_netif_rx_21 [2020-10-13 00:44:31,271 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_netif_rx_24 [2020-10-13 00:44:31,271 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_netif_rx_26 [2020-10-13 00:44:31,271 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_netdev_mqs [2020-10-13 00:44:31,271 INFO L130 BoogieDeclarations]: Found specification of procedure register_netdev [2020-10-13 00:44:31,272 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_register_netdev_12 [2020-10-13 00:44:31,277 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2020-10-13 00:44:31,277 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_netdev_27 [2020-10-13 00:44:31,277 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_err [2020-10-13 00:44:31,277 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_warn [2020-10-13 00:44:31,277 INFO L130 BoogieDeclarations]: Found specification of procedure lapb_register [2020-10-13 00:44:31,277 INFO L130 BoogieDeclarations]: Found specification of procedure lapb_unregister [2020-10-13 00:44:31,277 INFO L130 BoogieDeclarations]: Found specification of procedure lapb_connect_request [2020-10-13 00:44:31,277 INFO L130 BoogieDeclarations]: Found specification of procedure lapb_disconnect_request [2020-10-13 00:44:31,278 INFO L130 BoogieDeclarations]: Found specification of procedure lapb_data_request [2020-10-13 00:44:31,278 INFO L130 BoogieDeclarations]: Found specification of procedure lapb_data_received [2020-10-13 00:44:31,278 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_lock [2020-10-13 00:44:31,278 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_unlock [2020-10-13 00:44:31,278 INFO L130 BoogieDeclarations]: Found specification of procedure x25_type_trans [2020-10-13 00:44:31,278 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-13 00:44:31,279 INFO L130 BoogieDeclarations]: Found specification of procedure x25_asy_esc [2020-10-13 00:44:31,279 INFO L130 BoogieDeclarations]: Found specification of procedure x25_asy_unesc [2020-10-13 00:44:31,280 INFO L130 BoogieDeclarations]: Found specification of procedure x25_asy_setup [2020-10-13 00:44:31,281 INFO L130 BoogieDeclarations]: Found specification of procedure x25_asy_alloc [2020-10-13 00:44:31,281 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-13 00:44:31,281 INFO L130 BoogieDeclarations]: Found specification of procedure x25_asy_free [2020-10-13 00:44:31,281 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2020-10-13 00:44:31,281 INFO L130 BoogieDeclarations]: Found specification of procedure x25_asy_change_mtu [2020-10-13 00:44:31,281 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2020-10-13 00:44:31,281 INFO L130 BoogieDeclarations]: Found specification of procedure x25_asy_lock [2020-10-13 00:44:31,281 INFO L130 BoogieDeclarations]: Found specification of procedure x25_asy_unlock [2020-10-13 00:44:31,282 INFO L130 BoogieDeclarations]: Found specification of procedure x25_asy_bump [2020-10-13 00:44:31,282 INFO L130 BoogieDeclarations]: Found specification of procedure x25_asy_encaps [2020-10-13 00:44:31,282 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~int [2020-10-13 00:44:31,282 INFO L130 BoogieDeclarations]: Found specification of procedure x25_asy_write_wakeup [2020-10-13 00:44:31,282 INFO L130 BoogieDeclarations]: Found specification of procedure x25_asy_timeout [2020-10-13 00:44:31,282 INFO L130 BoogieDeclarations]: Found specification of procedure x25_asy_xmit [2020-10-13 00:44:31,282 INFO L130 BoogieDeclarations]: Found specification of procedure x25_asy_data_indication [2020-10-13 00:44:31,282 INFO L130 BoogieDeclarations]: Found specification of procedure x25_asy_data_transmit [2020-10-13 00:44:31,283 INFO L130 BoogieDeclarations]: Found specification of procedure x25_asy_connected [2020-10-13 00:44:31,283 INFO L130 BoogieDeclarations]: Found specification of procedure x25_asy_disconnected [2020-10-13 00:44:31,283 INFO L130 BoogieDeclarations]: Found specification of procedure x25_asy_open [2020-10-13 00:44:31,283 INFO L130 BoogieDeclarations]: Found specification of procedure x25_asy_close [2020-10-13 00:44:31,283 INFO L130 BoogieDeclarations]: Found specification of procedure x25_asy_receive_buf [2020-10-13 00:44:31,283 INFO L130 BoogieDeclarations]: Found specification of procedure x25_asy_open_tty [2020-10-13 00:44:31,283 INFO L130 BoogieDeclarations]: Found specification of procedure x25_asy_close_tty [2020-10-13 00:44:31,284 INFO L130 BoogieDeclarations]: Found specification of procedure x25_asy_ioctl [2020-10-13 00:44:31,285 INFO L130 BoogieDeclarations]: Found specification of procedure x25_asy_compat_ioctl [2020-10-13 00:44:31,285 INFO L130 BoogieDeclarations]: Found specification of procedure x25_asy_open_dev [2020-10-13 00:44:31,285 INFO L130 BoogieDeclarations]: Found specification of procedure init_x25_asy [2020-10-13 00:44:31,285 INFO L130 BoogieDeclarations]: Found specification of procedure exit_x25_asy [2020-10-13 00:44:31,285 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ndo_init_2 [2020-10-13 00:44:31,285 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ndo_uninit_2 [2020-10-13 00:44:31,285 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2020-10-13 00:44:31,286 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2020-10-13 00:44:31,286 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_probe_3 [2020-10-13 00:44:31,286 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-13 00:44:31,286 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_init [2020-10-13 00:44:31,286 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_add [2020-10-13 00:44:31,286 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_remove [2020-10-13 00:44:31,286 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_contains [2020-10-13 00:44:31,287 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_is_empty [2020-10-13 00:44:31,287 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2020-10-13 00:44:31,287 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_err_ptr [2020-10-13 00:44:31,287 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ptr_err [2020-10-13 00:44:31,287 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err_or_null [2020-10-13 00:44:31,287 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_netdev_alloc_skb [2020-10-13 00:44:31,287 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_alloc_skb [2020-10-13 00:44:31,287 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_current [2020-10-13 00:44:31,287 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-13 00:44:31,288 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-13 00:44:31,288 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-13 00:44:31,288 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-10-13 00:44:31,288 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-13 00:44:31,288 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2020-10-13 00:44:31,288 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2020-10-13 00:44:31,288 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2020-10-13 00:44:31,288 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2020-10-13 00:44:32,380 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2020-10-13 00:44:34,190 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-13 00:44:34,190 INFO L295 CfgBuilder]: Removed 4 assume(true) statements. [2020-10-13 00:44:34,201 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:44:34 BoogieIcfgContainer [2020-10-13 00:44:34,201 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-13 00:44:34,202 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-13 00:44:34,202 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-13 00:44:34,206 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-13 00:44:34,206 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 12:44:28" (1/3) ... [2020-10-13 00:44:34,207 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f22583e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 12:44:34, skipping insertion in model container [2020-10-13 00:44:34,207 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:44:30" (2/3) ... [2020-10-13 00:44:34,207 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f22583e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 12:44:34, skipping insertion in model container [2020-10-13 00:44:34,207 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:44:34" (3/3) ... [2020-10-13 00:44:34,209 INFO L109 eAbstractionObserver]: Analyzing ICFG 205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wan--x25_asy.ko-entry_point.cil.out.i [2020-10-13 00:44:34,220 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-13 00:44:34,229 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-13 00:44:34,243 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-13 00:44:34,274 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-13 00:44:34,275 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-13 00:44:34,275 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-13 00:44:34,275 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-13 00:44:34,275 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-13 00:44:34,275 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-13 00:44:34,275 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-13 00:44:34,275 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-13 00:44:34,325 INFO L276 IsEmpty]: Start isEmpty. Operand 1064 states. [2020-10-13 00:44:34,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2020-10-13 00:44:34,356 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 00:44:34,357 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:44:34,357 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 00:44:34,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 00:44:34,364 INFO L82 PathProgramCache]: Analyzing trace with hash -1283343217, now seen corresponding path program 1 times [2020-10-13 00:44:34,373 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 00:44:34,374 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1824333717] [2020-10-13 00:44:34,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 00:44:34,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 00:44:35,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:44:35,285 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:44:36,951 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:44:39,894 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 00:44:39,895 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 107 [2020-10-13 00:44:39,895 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 00:44:39,895 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5017 [2020-10-13 00:44:39,899 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 00:44:39,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 00:44:39,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 58 [2020-10-13 00:44:39,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-10-13 00:44:39,900 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-13 00:44:40,547 WARN L193 SmtUtils]: Spent 464.00 ms on a formula simplification that was a NOOP. DAG size: 253 [2020-10-13 00:44:40,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 00:44:40,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 00:44:40,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:44:40,641 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 00:44:40,641 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 00:44:40,642 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 00:44:40,642 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 69 [2020-10-13 00:44:40,642 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 00:44:40,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 00:44:40,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 00:44:40,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 00:44:40,644 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-13 00:44:40,700 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 00:44:40,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 00:44:40,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:44:40,712 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 00:44:40,713 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 00:44:40,713 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 00:44:40,713 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 00:44:40,714 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 00:44:40,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 00:44:40,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 00:44:40,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 00:44:40,715 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 00:44:40,724 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 00:44:40,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 00:44:40,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:44:40,735 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 00:44:40,736 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 00:44:40,736 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 00:44:40,736 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 00:44:40,736 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 00:44:40,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 00:44:40,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 00:44:40,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 00:44:40,738 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 00:44:40,746 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-13 00:44:40,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 00:44:40,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:44:40,761 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 00:44:40,761 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 00:44:40,761 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 00:44:40,762 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 00:44:40,762 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 00:44:40,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 00:44:40,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 00:44:40,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 00:44:40,763 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 00:44:40,771 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-13 00:44:40,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 00:44:40,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:44:40,784 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 00:44:40,784 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 00:44:40,784 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 00:44:40,784 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 00:44:40,785 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 00:44:40,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 00:44:40,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 00:44:40,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 00:44:40,786 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 00:44:40,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-13 00:44:40,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 00:44:40,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:44:40,808 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 00:44:40,809 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 00:44:40,809 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 00:44:40,809 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 00:44:40,810 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 00:44:40,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 00:44:40,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 00:44:40,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 00:44:40,811 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 00:44:40,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-13 00:44:40,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 00:44:40,844 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:44:40,853 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 00:44:40,854 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 00:44:40,854 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 00:44:40,854 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 00:44:40,854 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 00:44:40,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 00:44:40,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 00:44:40,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 00:44:40,855 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 00:44:40,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 00:44:40,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 00:44:40,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:44:40,880 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 00:44:40,881 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 00:44:40,881 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 00:44:40,881 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 00:44:40,881 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 00:44:40,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 00:44:40,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 00:44:40,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 00:44:40,882 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 00:44:40,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-13 00:44:40,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 00:44:40,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:44:40,951 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 00:44:40,952 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-13 00:44:40,952 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 00:44:40,953 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-13 00:44:40,953 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 00:44:40,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 00:44:40,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 00:44:40,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-13 00:44:40,955 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 00:44:40,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 00:44:40,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 00:44:40,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:44:41,001 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 00:44:41,001 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 00:44:41,001 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 00:44:41,002 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 00:44:41,002 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 00:44:41,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 00:44:41,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 00:44:41,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 00:44:41,028 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 25 [2020-10-13 00:44:41,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 00:44:41,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 00:44:41,044 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:44:41,048 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 00:44:41,048 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 00:44:41,048 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 00:44:41,048 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 00:44:41,049 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 00:44:41,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 00:44:41,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 00:44:41,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 00:44:41,049 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 00:44:41,057 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-13 00:44:41,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 00:44:41,066 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:44:41,081 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 00:44:41,081 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 00:44:41,082 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 00:44:41,082 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-13 00:44:41,082 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 00:44:41,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 00:44:41,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 00:44:41,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 00:44:41,083 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 00:44:41,146 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2020-10-13 00:44:41,147 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1824333717] [2020-10-13 00:44:41,149 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 00:44:41,149 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-13 00:44:41,150 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [520605027] [2020-10-13 00:44:41,156 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-13 00:44:41,156 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 00:44:41,171 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-13 00:44:41,172 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2020-10-13 00:44:41,174 INFO L87 Difference]: Start difference. First operand 1064 states. Second operand 11 states. [2020-10-13 00:44:41,595 WARN L193 SmtUtils]: Spent 382.00 ms on a formula simplification that was a NOOP. DAG size: 256 [2020-10-13 00:44:42,669 WARN L193 SmtUtils]: Spent 385.00 ms on a formula simplification that was a NOOP. DAG size: 258 [2020-10-13 00:44:43,176 WARN L193 SmtUtils]: Spent 375.00 ms on a formula simplification that was a NOOP. DAG size: 255 [2020-10-13 00:44:47,164 WARN L193 SmtUtils]: Spent 715.00 ms on a formula simplification. DAG size of input: 263 DAG size of output: 261 [2020-10-13 00:44:47,778 WARN L193 SmtUtils]: Spent 363.00 ms on a formula simplification that was a NOOP. DAG size: 261 [2020-10-13 00:44:48,244 WARN L193 SmtUtils]: Spent 352.00 ms on a formula simplification that was a NOOP. DAG size: 261 [2020-10-13 00:44:51,693 WARN L193 SmtUtils]: Spent 362.00 ms on a formula simplification that was a NOOP. DAG size: 263 [2020-10-13 00:45:11,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 00:45:11,186 INFO L93 Difference]: Finished difference Result 4351 states and 6670 transitions. [2020-10-13 00:45:11,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-10-13 00:45:11,188 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 75 [2020-10-13 00:45:11,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 00:45:11,241 INFO L225 Difference]: With dead ends: 4351 [2020-10-13 00:45:11,241 INFO L226 Difference]: Without dead ends: 3201 [2020-10-13 00:45:11,257 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 161 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=227, Invalid=585, Unknown=0, NotChecked=0, Total=812 [2020-10-13 00:45:11,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3201 states. [2020-10-13 00:45:11,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3201 to 2069. [2020-10-13 00:45:11,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2069 states. [2020-10-13 00:45:11,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2069 states to 2069 states and 2716 transitions. [2020-10-13 00:45:11,841 INFO L78 Accepts]: Start accepts. Automaton has 2069 states and 2716 transitions. Word has length 75 [2020-10-13 00:45:11,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 00:45:11,842 INFO L479 AbstractCegarLoop]: Abstraction has 2069 states and 2716 transitions. [2020-10-13 00:45:11,842 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-13 00:45:11,842 INFO L276 IsEmpty]: Start isEmpty. Operand 2069 states and 2716 transitions. [2020-10-13 00:45:11,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2020-10-13 00:45:11,856 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 00:45:11,857 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 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] [2020-10-13 00:45:11,857 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-13 00:45:11,857 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 00:45:11,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 00:45:11,858 INFO L82 PathProgramCache]: Analyzing trace with hash 13752408, now seen corresponding path program 1 times [2020-10-13 00:45:11,858 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 00:45:11,858 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [440139096] [2020-10-13 00:45:11,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 00:45:11,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 00:45:12,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:45:12,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:45:12,217 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:45:13,465 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:45:13,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:45:16,593 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 00:45:16,594 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 153 [2020-10-13 00:45:16,594 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 00:45:16,594 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4643 [2020-10-13 00:45:16,594 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 00:45:16,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 00:45:16,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 00:45:16,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 116 [2020-10-13 00:45:16,595 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 00:45:17,080 WARN L193 SmtUtils]: Spent 374.00 ms on a formula simplification that was a NOOP. DAG size: 253 [2020-10-13 00:45:17,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 00:45:17,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 00:45:17,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:45:17,232 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 00:45:17,232 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 00:45:17,232 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 00:45:17,232 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 129 [2020-10-13 00:45:17,233 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 00:45:17,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 00:45:17,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 00:45:17,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 00:45:17,234 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 00:45:17,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 00:45:17,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 00:45:17,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:45:17,312 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 00:45:17,312 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 00:45:17,312 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 00:45:17,313 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 00:45:17,313 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 00:45:17,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 00:45:17,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 00:45:17,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 00:45:17,314 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 00:45:17,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 00:45:17,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 00:45:17,333 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:45:17,339 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 00:45:17,340 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 00:45:17,340 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 00:45:17,340 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 00:45:17,341 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 00:45:17,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 00:45:17,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 00:45:17,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 00:45:17,342 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 00:45:17,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-13 00:45:17,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 00:45:17,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:45:17,379 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 00:45:17,379 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 00:45:17,380 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 00:45:17,380 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-13 00:45:17,380 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 00:45:17,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 00:45:17,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 00:45:17,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 00:45:17,381 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 00:45:17,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-13 00:45:17,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 00:45:17,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:45:17,407 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 00:45:17,407 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 00:45:17,407 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 00:45:17,407 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 00:45:17,408 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 00:45:17,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 00:45:17,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 00:45:17,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 00:45:17,409 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 00:45:17,415 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-13 00:45:17,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 00:45:17,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:45:17,431 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 00:45:17,431 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 00:45:17,432 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 00:45:17,432 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 00:45:17,432 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 00:45:17,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 00:45:17,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 00:45:17,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 00:45:17,433 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 00:45:17,451 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-13 00:45:17,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 00:45:17,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:45:17,472 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 00:45:17,472 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 00:45:17,472 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 00:45:17,473 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-13 00:45:17,473 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 00:45:17,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 00:45:17,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 00:45:17,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-13 00:45:17,474 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 00:45:17,480 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 00:45:17,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 00:45:17,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:45:17,492 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 00:45:17,492 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 00:45:17,493 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 00:45:17,493 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 00:45:17,493 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 00:45:17,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 00:45:17,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 00:45:17,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 00:45:17,494 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 00:45:17,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-13 00:45:17,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 00:45:17,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:45:17,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:45:17,585 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 00:45:17,586 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-10-13 00:45:17,586 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 00:45:17,586 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-10-13 00:45:17,586 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 00:45:17,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 00:45:17,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-13 00:45:17,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-13 00:45:17,587 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 00:45:17,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 00:45:17,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 00:45:17,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:45:17,632 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 00:45:17,632 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-13 00:45:17,633 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 00:45:17,633 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-13 00:45:17,633 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 00:45:17,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 00:45:17,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-13 00:45:17,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-13 00:45:17,634 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 00:45:17,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 00:45:17,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 00:45:17,659 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:45:17,675 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 00:45:17,675 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-13 00:45:17,675 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 00:45:17,675 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-13 00:45:17,676 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 00:45:17,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 00:45:17,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-13 00:45:17,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-13 00:45:17,678 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-13 00:45:17,688 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 00:45:17,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 00:45:17,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:45:17,714 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 00:45:17,715 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 00:45:17,715 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 00:45:17,716 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-13 00:45:17,716 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 00:45:17,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 00:45:17,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-13 00:45:17,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-13 00:45:17,717 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 00:45:17,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-13 00:45:17,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 00:45:17,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:45:17,795 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 00:45:17,796 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-13 00:45:17,796 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 00:45:17,796 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-13 00:45:17,796 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 00:45:17,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 00:45:17,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-13 00:45:17,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-13 00:45:17,797 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 00:45:17,854 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 00:45:17,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 00:45:17,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:45:17,869 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 00:45:17,869 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 00:45:17,870 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 00:45:17,870 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 00:45:17,870 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 00:45:17,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 00:45:17,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 00:45:17,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 00:45:17,871 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 00:45:17,878 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 00:45:17,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 00:45:17,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:45:17,892 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 00:45:17,892 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 00:45:17,893 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 00:45:17,893 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 00:45:17,893 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 00:45:17,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 00:45:17,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 00:45:17,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 00:45:17,894 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 00:45:17,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-13 00:45:17,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 00:45:17,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:45:17,912 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 00:45:17,913 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 00:45:17,913 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 00:45:17,913 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 00:45:17,914 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 00:45:17,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 00:45:17,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 00:45:17,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 00:45:17,915 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 00:45:17,969 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2020-10-13 00:45:17,969 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [440139096] [2020-10-13 00:45:17,970 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 00:45:17,970 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-13 00:45:17,970 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2027155678] [2020-10-13 00:45:17,973 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-13 00:45:17,975 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 00:45:17,975 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-13 00:45:17,976 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2020-10-13 00:45:17,976 INFO L87 Difference]: Start difference. First operand 2069 states and 2716 transitions. Second operand 12 states. [2020-10-13 00:45:18,382 WARN L193 SmtUtils]: Spent 379.00 ms on a formula simplification that was a NOOP. DAG size: 256 [2020-10-13 00:45:19,167 WARN L193 SmtUtils]: Spent 374.00 ms on a formula simplification that was a NOOP. DAG size: 258 [2020-10-13 00:45:19,690 WARN L193 SmtUtils]: Spent 383.00 ms on a formula simplification that was a NOOP. DAG size: 255 [2020-10-13 00:45:22,937 WARN L193 SmtUtils]: Spent 361.00 ms on a formula simplification that was a NOOP. DAG size: 263 [2020-10-13 00:45:25,572 WARN L193 SmtUtils]: Spent 517.00 ms on a formula simplification that was a NOOP. DAG size: 261 [2020-10-13 00:45:37,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 00:45:37,963 INFO L93 Difference]: Finished difference Result 5277 states and 7761 transitions. [2020-10-13 00:45:37,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-13 00:45:37,964 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 113 [2020-10-13 00:45:37,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 00:45:37,990 INFO L225 Difference]: With dead ends: 5277 [2020-10-13 00:45:37,991 INFO L226 Difference]: Without dead ends: 3232 [2020-10-13 00:45:38,001 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 113 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=195, Invalid=507, Unknown=0, NotChecked=0, Total=702 [2020-10-13 00:45:38,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3232 states. [2020-10-13 00:45:38,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3232 to 2072. [2020-10-13 00:45:38,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2072 states. [2020-10-13 00:45:38,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2072 states to 2072 states and 2717 transitions. [2020-10-13 00:45:38,469 INFO L78 Accepts]: Start accepts. Automaton has 2072 states and 2717 transitions. Word has length 113 [2020-10-13 00:45:38,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 00:45:38,473 INFO L479 AbstractCegarLoop]: Abstraction has 2072 states and 2717 transitions. [2020-10-13 00:45:38,473 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-13 00:45:38,473 INFO L276 IsEmpty]: Start isEmpty. Operand 2072 states and 2717 transitions. [2020-10-13 00:45:38,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2020-10-13 00:45:38,483 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 00:45:38,483 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 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] [2020-10-13 00:45:38,484 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-13 00:45:38,484 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 00:45:38,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 00:45:38,484 INFO L82 PathProgramCache]: Analyzing trace with hash 1862545647, now seen corresponding path program 1 times [2020-10-13 00:45:38,485 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 00:45:38,485 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [472860987] [2020-10-13 00:45:38,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 00:45:38,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 00:45:38,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:45:38,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:45:38,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:45:38,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:45:39,883 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:45:41,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:45:43,671 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 00:45:43,672 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 159 [2020-10-13 00:45:43,672 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-13 00:45:43,672 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5101 [2020-10-13 00:45:43,672 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 00:45:43,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-13 00:45:43,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 58 [2020-10-13 00:45:43,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 41 [2020-10-13 00:45:43,673 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 00:45:44,132 WARN L193 SmtUtils]: Spent 380.00 ms on a formula simplification that was a NOOP. DAG size: 253 [2020-10-13 00:45:44,133 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 00:45:44,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 00:45:44,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:45:44,196 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 00:45:44,197 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 00:45:44,197 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 00:45:44,197 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-10-13 00:45:44,197 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 00:45:44,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 00:45:44,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 00:45:44,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 00:45:44,198 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 00:45:44,238 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 00:45:44,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 00:45:44,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:45:44,246 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 00:45:44,246 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 00:45:44,246 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 00:45:44,246 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 00:45:44,246 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 00:45:44,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 00:45:44,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 00:45:44,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 00:45:44,247 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 00:45:44,252 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 00:45:44,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 00:45:44,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:45:44,260 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 00:45:44,260 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 00:45:44,260 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 00:45:44,260 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 00:45:44,260 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 00:45:44,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 00:45:44,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 00:45:44,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 00:45:44,261 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 00:45:44,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-13 00:45:44,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 00:45:44,272 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:45:44,274 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 00:45:44,275 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 00:45:44,275 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 00:45:44,275 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 00:45:44,275 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 00:45:44,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 00:45:44,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 00:45:44,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 00:45:44,276 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 00:45:44,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-13 00:45:44,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 00:45:44,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:45:44,289 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 00:45:44,289 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 00:45:44,289 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 00:45:44,290 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 00:45:44,290 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 00:45:44,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 00:45:44,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 00:45:44,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 00:45:44,291 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 00:45:44,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-13 00:45:44,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 00:45:44,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:45:44,305 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 00:45:44,305 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 00:45:44,305 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 00:45:44,305 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 00:45:44,306 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 00:45:44,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 00:45:44,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 00:45:44,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 00:45:44,306 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 00:45:44,321 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-13 00:45:44,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 00:45:44,329 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:45:44,335 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 00:45:44,335 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 00:45:44,335 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 00:45:44,336 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 00:45:44,336 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 00:45:44,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 00:45:44,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 00:45:44,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 00:45:44,337 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 00:45:44,342 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 00:45:44,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 00:45:44,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:45:44,352 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 00:45:44,352 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 00:45:44,352 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 00:45:44,353 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 00:45:44,353 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 00:45:44,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 00:45:44,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 00:45:44,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 00:45:44,354 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 00:45:44,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-13 00:45:44,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 00:45:44,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:45:44,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:45:44,686 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 00:45:44,686 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-13 00:45:44,686 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 00:45:44,686 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 302 [2020-10-13 00:45:44,687 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 00:45:44,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-13 00:45:44,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 00:45:44,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-13 00:45:44,687 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 00:45:44,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 00:45:44,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 00:45:44,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:45:44,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:45:44,951 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 00:45:44,951 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-13 00:45:44,951 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 00:45:44,951 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 224 [2020-10-13 00:45:44,952 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 00:45:44,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 00:45:44,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 00:45:44,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-10-13 00:45:44,953 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 00:45:44,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 00:45:44,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 00:45:45,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:45:45,037 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:45:45,175 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 00:45:45,175 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-13 00:45:45,176 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 00:45:45,176 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 175 [2020-10-13 00:45:45,176 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 00:45:45,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-13 00:45:45,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 00:45:45,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-13 00:45:45,177 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 00:45:45,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 00:45:45,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 00:45:45,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:45:45,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:45:45,343 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 00:45:45,343 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 00:45:45,344 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 00:45:45,344 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 116 [2020-10-13 00:45:45,344 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 00:45:45,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-13 00:45:45,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 00:45:45,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-13 00:45:45,345 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 00:45:45,498 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-13 00:45:45,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 00:45:45,521 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:45:45,535 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 00:45:45,535 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-13 00:45:45,535 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 00:45:45,535 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-13 00:45:45,536 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 00:45:45,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 00:45:45,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-10-13 00:45:45,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 00:45:45,536 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 00:45:45,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 00:45:45,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 00:45:45,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:45:45,569 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 00:45:45,569 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 00:45:45,569 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 00:45:45,570 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 00:45:45,570 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 00:45:45,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 00:45:45,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 00:45:45,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 00:45:45,571 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 00:45:45,576 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-13 00:45:45,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 00:45:45,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:45:45,583 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 00:45:45,583 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 00:45:45,583 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 00:45:45,584 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 00:45:45,584 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 00:45:45,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 00:45:45,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 00:45:45,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 00:45:45,585 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 00:45:45,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2020-10-13 00:45:45,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 00:45:45,597 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:45:45,600 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 00:45:45,600 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 00:45:45,601 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 00:45:45,601 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 00:45:45,601 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 00:45:45,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 00:45:45,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 00:45:45,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 00:45:45,602 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 00:45:45,639 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2020-10-13 00:45:45,640 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [472860987] [2020-10-13 00:45:45,640 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 00:45:45,641 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-13 00:45:45,641 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [610679422] [2020-10-13 00:45:45,643 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 00:45:45,643 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 00:45:45,643 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 00:45:45,645 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2020-10-13 00:45:45,645 INFO L87 Difference]: Start difference. First operand 2072 states and 2717 transitions. Second operand 13 states. [2020-10-13 00:45:46,045 WARN L193 SmtUtils]: Spent 340.00 ms on a formula simplification that was a NOOP. DAG size: 256 [2020-10-13 00:45:46,789 WARN L193 SmtUtils]: Spent 354.00 ms on a formula simplification that was a NOOP. DAG size: 258 [2020-10-13 00:45:47,267 WARN L193 SmtUtils]: Spent 353.00 ms on a formula simplification that was a NOOP. DAG size: 255 [2020-10-13 00:45:51,567 WARN L193 SmtUtils]: Spent 1.14 s on a formula simplification. DAG size of input: 266 DAG size of output: 262 [2020-10-13 00:45:52,810 WARN L193 SmtUtils]: Spent 849.00 ms on a formula simplification. DAG size of input: 270 DAG size of output: 265 [2020-10-13 00:45:55,614 WARN L193 SmtUtils]: Spent 755.00 ms on a formula simplification. DAG size of input: 266 DAG size of output: 264 [2020-10-13 00:45:56,739 WARN L193 SmtUtils]: Spent 839.00 ms on a formula simplification. DAG size of input: 270 DAG size of output: 268 [2020-10-13 00:45:58,417 WARN L193 SmtUtils]: Spent 754.00 ms on a formula simplification. DAG size of input: 272 DAG size of output: 259 [2020-10-13 00:46:08,507 WARN L193 SmtUtils]: Spent 765.00 ms on a formula simplification. DAG size of input: 269 DAG size of output: 256 [2020-10-13 00:46:25,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 00:46:25,647 INFO L93 Difference]: Finished difference Result 4734 states and 7026 transitions. [2020-10-13 00:46:25,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2020-10-13 00:46:25,648 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 119 [2020-10-13 00:46:25,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 00:46:25,672 INFO L225 Difference]: With dead ends: 4734 [2020-10-13 00:46:25,673 INFO L226 Difference]: Without dead ends: 3629 [2020-10-13 00:46:25,682 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 32 SyntacticMatches, 6 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 396 ImplicationChecksByTransitivity, 7.5s TimeCoverageRelationStatistics Valid=383, Invalid=1177, Unknown=0, NotChecked=0, Total=1560 [2020-10-13 00:46:25,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3629 states. [2020-10-13 00:46:26,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3629 to 2346. [2020-10-13 00:46:26,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2346 states. [2020-10-13 00:46:26,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2346 states to 2346 states and 3093 transitions. [2020-10-13 00:46:26,132 INFO L78 Accepts]: Start accepts. Automaton has 2346 states and 3093 transitions. Word has length 119 [2020-10-13 00:46:26,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 00:46:26,132 INFO L479 AbstractCegarLoop]: Abstraction has 2346 states and 3093 transitions. [2020-10-13 00:46:26,132 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 00:46:26,133 INFO L276 IsEmpty]: Start isEmpty. Operand 2346 states and 3093 transitions. [2020-10-13 00:46:26,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2020-10-13 00:46:26,145 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 00:46:26,146 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 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] [2020-10-13 00:46:26,146 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-13 00:46:26,146 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 00:46:26,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 00:46:26,147 INFO L82 PathProgramCache]: Analyzing trace with hash 436000086, now seen corresponding path program 1 times [2020-10-13 00:46:26,147 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 00:46:26,147 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1214699207] [2020-10-13 00:46:26,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 00:46:26,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 00:46:26,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:46:26,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:46:26,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:46:29,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:46:29,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:46:31,248 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 00:46:31,249 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 167 [2020-10-13 00:46:31,249 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 00:46:31,249 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5030 [2020-10-13 00:46:31,250 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 00:46:31,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 00:46:31,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 00:46:31,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 130 [2020-10-13 00:46:31,250 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 00:46:31,683 WARN L193 SmtUtils]: Spent 349.00 ms on a formula simplification that was a NOOP. DAG size: 253 [2020-10-13 00:46:31,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 00:46:31,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 00:46:31,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:46:31,818 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 00:46:31,819 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 00:46:31,819 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 00:46:31,819 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 113 [2020-10-13 00:46:31,820 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 00:46:31,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 00:46:31,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 00:46:31,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 00:46:31,821 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 00:46:31,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 00:46:31,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 00:46:31,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:46:31,876 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 00:46:31,876 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 00:46:31,876 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 00:46:31,877 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 00:46:31,877 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 00:46:31,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 00:46:31,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 00:46:31,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 00:46:31,878 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 00:46:31,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 00:46:31,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 00:46:31,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:46:31,896 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 00:46:31,897 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 00:46:31,897 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 00:46:31,897 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 00:46:31,897 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 00:46:31,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 00:46:31,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 00:46:31,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 00:46:31,898 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 00:46:31,904 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-13 00:46:31,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 00:46:31,910 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:46:31,915 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 00:46:31,915 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 00:46:31,915 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 00:46:31,915 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 00:46:31,916 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 00:46:31,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 00:46:31,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 00:46:31,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 00:46:31,916 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 00:46:31,922 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-13 00:46:31,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 00:46:31,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:46:31,934 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 00:46:31,934 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 00:46:31,935 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 00:46:31,935 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 00:46:31,935 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 00:46:31,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 00:46:31,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 00:46:31,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 00:46:31,936 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 00:46:31,942 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-13 00:46:31,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 00:46:31,949 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:46:31,954 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 00:46:31,954 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 00:46:31,954 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 00:46:31,954 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 00:46:31,955 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 00:46:31,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 00:46:31,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 00:46:31,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 00:46:31,956 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 00:46:31,970 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-13 00:46:31,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 00:46:31,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:46:31,982 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 00:46:31,983 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 00:46:31,983 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 00:46:31,983 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 00:46:31,983 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 00:46:31,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 00:46:31,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 00:46:31,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-13 00:46:31,984 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 00:46:31,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 00:46:31,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 00:46:31,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:46:31,997 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 00:46:31,997 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 00:46:31,997 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 00:46:31,997 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 00:46:31,998 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 00:46:31,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 00:46:31,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 00:46:31,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 00:46:31,998 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 00:46:32,025 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-13 00:46:32,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 00:46:32,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:46:32,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:46:32,210 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 00:46:32,211 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-13 00:46:32,211 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 00:46:32,211 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 176 [2020-10-13 00:46:32,212 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 00:46:32,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 00:46:32,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-10-13 00:46:32,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 00:46:32,213 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 00:46:32,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 00:46:32,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 00:46:32,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:46:32,241 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 00:46:32,241 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 00:46:32,241 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 00:46:32,241 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 00:46:32,241 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 00:46:32,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 00:46:32,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 00:46:32,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 00:46:32,242 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 00:46:32,247 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 00:46:32,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 00:46:32,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:46:32,312 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 00:46:32,313 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-13 00:46:32,313 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 00:46:32,313 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-10-13 00:46:32,313 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 00:46:32,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 00:46:32,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-13 00:46:32,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 00:46:32,314 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 00:46:32,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 00:46:32,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 00:46:32,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:46:32,372 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 00:46:32,373 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-13 00:46:32,373 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 00:46:32,373 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-13 00:46:32,373 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 00:46:32,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 00:46:32,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 00:46:32,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 00:46:32,374 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 00:46:32,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 00:46:32,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 00:46:32,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:46:32,431 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 00:46:32,431 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 00:46:32,431 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 00:46:32,432 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 00:46:32,432 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 00:46:32,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 00:46:32,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 00:46:32,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 00:46:32,433 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 00:46:32,549 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 00:46:32,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 00:46:32,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:46:32,566 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 00:46:32,567 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 00:46:32,567 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 00:46:32,567 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 00:46:32,567 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 00:46:32,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 00:46:32,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 00:46:32,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 00:46:32,568 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 00:46:32,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-13 00:46:32,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 00:46:32,605 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:46:32,637 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 00:46:32,637 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-13 00:46:32,638 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 00:46:32,638 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-13 00:46:32,638 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 00:46:32,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 00:46:32,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-13 00:46:32,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-13 00:46:32,639 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 00:46:32,716 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 00:46:32,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 00:46:32,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:46:32,725 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 00:46:32,725 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 00:46:32,726 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 00:46:32,726 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 00:46:32,726 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 00:46:32,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 00:46:32,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 00:46:32,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 00:46:32,727 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 00:46:32,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-13 00:46:32,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 00:46:32,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:46:32,741 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 00:46:32,742 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 00:46:32,742 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 00:46:32,742 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 00:46:32,742 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 00:46:32,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 00:46:32,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 00:46:32,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 00:46:32,743 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 00:46:32,749 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-13 00:46:32,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 00:46:32,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:46:32,756 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 00:46:32,757 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 00:46:32,757 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 00:46:32,757 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 00:46:32,757 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 00:46:32,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 00:46:32,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 00:46:32,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 00:46:32,758 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 00:46:32,793 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 10 proven. 1 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2020-10-13 00:46:32,794 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1214699207] [2020-10-13 00:46:32,794 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 00:46:32,794 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-10-13 00:46:32,794 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1029651264] [2020-10-13 00:46:32,795 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-13 00:46:32,795 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 00:46:32,795 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-13 00:46:32,796 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2020-10-13 00:46:32,796 INFO L87 Difference]: Start difference. First operand 2346 states and 3093 transitions. Second operand 16 states. [2020-10-13 00:46:33,191 WARN L193 SmtUtils]: Spent 370.00 ms on a formula simplification that was a NOOP. DAG size: 256 [2020-10-13 00:46:34,202 WARN L193 SmtUtils]: Spent 364.00 ms on a formula simplification that was a NOOP. DAG size: 258 [2020-10-13 00:46:34,661 WARN L193 SmtUtils]: Spent 399.00 ms on a formula simplification that was a NOOP. DAG size: 263 [2020-10-13 00:46:35,147 WARN L193 SmtUtils]: Spent 366.00 ms on a formula simplification that was a NOOP. DAG size: 255 [2020-10-13 00:46:41,981 WARN L193 SmtUtils]: Spent 376.00 ms on a formula simplification that was a NOOP. DAG size: 261 [2020-10-13 00:46:42,502 WARN L193 SmtUtils]: Spent 374.00 ms on a formula simplification that was a NOOP. DAG size: 261 [2020-10-13 00:46:43,366 WARN L193 SmtUtils]: Spent 383.00 ms on a formula simplification that was a NOOP. DAG size: 263 [2020-10-13 00:46:43,817 WARN L193 SmtUtils]: Spent 392.00 ms on a formula simplification that was a NOOP. DAG size: 263 [2020-10-13 00:47:00,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 00:47:00,316 INFO L93 Difference]: Finished difference Result 5745 states and 8261 transitions. [2020-10-13 00:47:00,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-10-13 00:47:00,320 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 123 [2020-10-13 00:47:00,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 00:47:00,339 INFO L225 Difference]: With dead ends: 5745 [2020-10-13 00:47:00,339 INFO L226 Difference]: Without dead ends: 3423 [2020-10-13 00:47:00,348 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 225 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=311, Invalid=949, Unknown=0, NotChecked=0, Total=1260 [2020-10-13 00:47:00,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3423 states. [2020-10-13 00:47:00,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3423 to 2405. [2020-10-13 00:47:00,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2405 states. [2020-10-13 00:47:00,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2405 states to 2405 states and 3188 transitions. [2020-10-13 00:47:00,740 INFO L78 Accepts]: Start accepts. Automaton has 2405 states and 3188 transitions. Word has length 123 [2020-10-13 00:47:00,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 00:47:00,741 INFO L479 AbstractCegarLoop]: Abstraction has 2405 states and 3188 transitions. [2020-10-13 00:47:00,741 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-13 00:47:00,741 INFO L276 IsEmpty]: Start isEmpty. Operand 2405 states and 3188 transitions. [2020-10-13 00:47:00,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2020-10-13 00:47:00,750 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 00:47:00,750 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 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] [2020-10-13 00:47:00,751 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-13 00:47:00,751 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 00:47:00,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 00:47:00,751 INFO L82 PathProgramCache]: Analyzing trace with hash 694667582, now seen corresponding path program 1 times [2020-10-13 00:47:00,751 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 00:47:00,752 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [206266725] [2020-10-13 00:47:00,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 00:47:00,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 00:47:00,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:47:00,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:47:01,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:47:01,883 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:47:05,834 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 00:47:05,834 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 166 [2020-10-13 00:47:05,834 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 00:47:05,834 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5020 [2020-10-13 00:47:05,835 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 00:47:05,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-13 00:47:05,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 58 [2020-10-13 00:47:05,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 41 [2020-10-13 00:47:05,835 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 00:47:06,401 WARN L193 SmtUtils]: Spent 490.00 ms on a formula simplification that was a NOOP. DAG size: 253 [2020-10-13 00:47:06,402 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 00:47:06,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 00:47:06,420 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:47:06,523 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 00:47:06,523 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 00:47:06,524 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 00:47:06,524 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 110 [2020-10-13 00:47:06,524 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 00:47:06,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 00:47:06,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 00:47:06,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 00:47:06,525 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 00:47:06,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 00:47:06,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 00:47:06,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:47:06,584 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 00:47:06,585 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 00:47:06,585 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 00:47:06,585 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 00:47:06,586 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 00:47:06,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 00:47:06,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 00:47:06,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 00:47:06,587 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 00:47:06,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 00:47:06,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 00:47:06,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:47:06,602 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 00:47:06,603 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 00:47:06,603 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 00:47:06,604 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 00:47:06,604 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 00:47:06,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 00:47:06,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 00:47:06,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 00:47:06,605 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 00:47:06,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-13 00:47:06,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 00:47:06,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:47:06,621 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 00:47:06,622 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 00:47:06,622 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 00:47:06,623 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 00:47:06,623 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 00:47:06,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 00:47:06,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 00:47:06,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 00:47:06,624 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 00:47:06,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-13 00:47:06,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 00:47:06,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:47:06,640 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 00:47:06,640 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 00:47:06,641 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 00:47:06,641 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 00:47:06,641 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 00:47:06,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 00:47:06,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 00:47:06,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 00:47:06,643 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 00:47:06,649 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-13 00:47:06,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 00:47:06,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:47:06,658 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 00:47:06,659 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 00:47:06,659 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 00:47:06,660 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 00:47:06,660 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 00:47:06,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 00:47:06,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 00:47:06,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 00:47:06,661 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 00:47:06,681 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-13 00:47:06,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 00:47:06,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:47:06,692 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 00:47:06,693 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 00:47:06,693 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 00:47:06,693 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 00:47:06,694 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 00:47:06,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 00:47:06,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 00:47:06,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 00:47:06,695 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 00:47:06,700 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 00:47:06,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 00:47:06,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:47:06,709 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 00:47:06,709 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 00:47:06,709 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 00:47:06,710 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 00:47:06,710 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 00:47:06,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 00:47:06,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 00:47:06,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 00:47:06,711 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 00:47:06,742 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-13 00:47:06,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 00:47:06,763 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:47:06,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:47:07,047 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 00:47:07,047 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-13 00:47:07,048 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 00:47:07,048 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 295 [2020-10-13 00:47:07,048 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 00:47:07,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-13 00:47:07,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 00:47:07,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-10-13 00:47:07,050 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 00:47:07,097 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 00:47:07,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 00:47:07,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:47:07,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:47:07,353 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 00:47:07,354 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-13 00:47:07,354 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 00:47:07,355 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 249 [2020-10-13 00:47:07,355 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 00:47:07,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-13 00:47:07,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 00:47:07,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-10-13 00:47:07,356 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 00:47:07,462 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 00:47:07,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 00:47:07,477 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:47:07,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:47:07,639 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 00:47:07,639 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-13 00:47:07,640 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 00:47:07,640 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 170 [2020-10-13 00:47:07,640 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 00:47:07,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 00:47:07,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 00:47:07,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-13 00:47:07,642 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 00:47:07,663 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 00:47:07,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 00:47:07,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:47:07,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:47:07,809 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 00:47:07,810 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-13 00:47:07,810 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 00:47:07,811 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 139 [2020-10-13 00:47:07,811 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 00:47:07,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-13 00:47:07,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 00:47:07,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-13 00:47:07,812 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 00:47:07,973 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2020-10-13 00:47:07,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 00:47:07,983 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:47:07,993 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 00:47:07,993 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-13 00:47:07,993 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 00:47:07,993 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 00:47:07,994 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 00:47:07,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 00:47:07,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 27 [2020-10-13 00:47:07,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 00:47:07,994 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 00:47:08,016 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-13 00:47:08,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 00:47:08,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:47:08,022 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 00:47:08,022 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 00:47:08,022 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 00:47:08,022 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 00:47:08,022 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 00:47:08,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 00:47:08,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 00:47:08,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 00:47:08,023 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 00:47:08,027 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-10-13 00:47:08,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 00:47:08,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:47:08,036 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 00:47:08,037 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 00:47:08,037 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 00:47:08,037 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 00:47:08,037 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 00:47:08,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 00:47:08,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 00:47:08,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 00:47:08,038 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 00:47:08,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-13 00:47:08,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 00:47:08,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:47:08,048 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 00:47:08,048 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 00:47:08,048 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 00:47:08,049 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 00:47:08,049 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 00:47:08,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 00:47:08,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 00:47:08,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 00:47:08,050 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 00:47:08,085 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2020-10-13 00:47:08,086 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [206266725] [2020-10-13 00:47:08,086 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 00:47:08,086 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-10-13 00:47:08,086 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1773505926] [2020-10-13 00:47:08,088 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-13 00:47:08,088 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 00:47:08,088 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-13 00:47:08,089 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=170, Unknown=0, NotChecked=0, Total=210 [2020-10-13 00:47:08,089 INFO L87 Difference]: Start difference. First operand 2405 states and 3188 transitions. Second operand 15 states. [2020-10-13 00:47:08,454 WARN L193 SmtUtils]: Spent 339.00 ms on a formula simplification that was a NOOP. DAG size: 256 [2020-10-13 00:47:09,054 WARN L193 SmtUtils]: Spent 352.00 ms on a formula simplification that was a NOOP. DAG size: 258 [2020-10-13 00:47:09,572 WARN L193 SmtUtils]: Spent 369.00 ms on a formula simplification that was a NOOP. DAG size: 255 [2020-10-13 00:47:13,432 WARN L193 SmtUtils]: Spent 710.00 ms on a formula simplification. DAG size of input: 261 DAG size of output: 260 [2020-10-13 00:47:23,928 WARN L193 SmtUtils]: Spent 723.00 ms on a formula simplification. DAG size of input: 260 DAG size of output: 259 [2020-10-13 00:47:24,943 WARN L193 SmtUtils]: Spent 768.00 ms on a formula simplification. DAG size of input: 267 DAG size of output: 265 [2020-10-13 00:47:26,038 WARN L193 SmtUtils]: Spent 840.00 ms on a formula simplification. DAG size of input: 267 DAG size of output: 266 [2020-10-13 00:47:26,984 WARN L193 SmtUtils]: Spent 822.00 ms on a formula simplification. DAG size of input: 265 DAG size of output: 264 [2020-10-13 00:47:27,953 WARN L193 SmtUtils]: Spent 807.00 ms on a formula simplification. DAG size of input: 268 DAG size of output: 261 [2020-10-13 00:47:28,827 WARN L193 SmtUtils]: Spent 747.00 ms on a formula simplification. DAG size of input: 259 DAG size of output: 258 [2020-10-13 00:47:29,669 WARN L193 SmtUtils]: Spent 806.00 ms on a formula simplification. DAG size of input: 265 DAG size of output: 264 [2020-10-13 00:47:30,884 WARN L193 SmtUtils]: Spent 767.00 ms on a formula simplification. DAG size of input: 266 DAG size of output: 258 [2020-10-13 00:47:44,647 WARN L193 SmtUtils]: Spent 734.00 ms on a formula simplification. DAG size of input: 263 DAG size of output: 255 [2020-10-13 00:47:54,079 WARN L193 SmtUtils]: Spent 763.00 ms on a formula simplification. DAG size of input: 256 DAG size of output: 255 [2020-10-13 00:47:57,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 00:47:57,152 INFO L93 Difference]: Finished difference Result 6416 states and 9219 transitions. [2020-10-13 00:47:57,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2020-10-13 00:47:57,155 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 126 [2020-10-13 00:47:57,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 00:47:57,179 INFO L225 Difference]: With dead ends: 6416 [2020-10-13 00:47:57,179 INFO L226 Difference]: Without dead ends: 4035 [2020-10-13 00:47:57,188 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 35 SyntacticMatches, 3 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 710 ImplicationChecksByTransitivity, 11.2s TimeCoverageRelationStatistics Valid=518, Invalid=2032, Unknown=0, NotChecked=0, Total=2550 [2020-10-13 00:47:57,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4035 states. [2020-10-13 00:47:57,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4035 to 2968. [2020-10-13 00:47:57,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2968 states. [2020-10-13 00:47:57,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2968 states to 2968 states and 4124 transitions. [2020-10-13 00:47:57,878 INFO L78 Accepts]: Start accepts. Automaton has 2968 states and 4124 transitions. Word has length 126 [2020-10-13 00:47:57,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 00:47:57,878 INFO L479 AbstractCegarLoop]: Abstraction has 2968 states and 4124 transitions. [2020-10-13 00:47:57,878 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-13 00:47:57,878 INFO L276 IsEmpty]: Start isEmpty. Operand 2968 states and 4124 transitions. [2020-10-13 00:47:57,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2020-10-13 00:47:57,887 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 00:47:57,887 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 5, 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 00:47:57,887 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-13 00:47:57,887 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 00:47:57,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 00:47:57,888 INFO L82 PathProgramCache]: Analyzing trace with hash -10505828, now seen corresponding path program 1 times [2020-10-13 00:47:57,888 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 00:47:57,888 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [934598880] [2020-10-13 00:47:57,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 00:47:57,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 00:47:57,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:47:58,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:47:58,133 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:47:58,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking...