/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc config/AutomizerReach.xml -s config/svcomp-Reach-64bit-Automizer_Default.epf -i ../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--net--fddi--defxx.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-4f750a8 [2020-12-22 13:35:39,850 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-22 13:35:39,855 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-22 13:35:39,915 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-22 13:35:39,916 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-22 13:35:39,922 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-22 13:35:39,926 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-22 13:35:39,935 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-22 13:35:39,939 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-22 13:35:39,947 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-22 13:35:39,949 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-22 13:35:39,950 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-22 13:35:39,951 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-22 13:35:39,954 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-22 13:35:39,956 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-22 13:35:39,958 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-22 13:35:39,960 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-22 13:35:39,964 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-22 13:35:39,966 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-22 13:35:39,968 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-22 13:35:39,970 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-22 13:35:39,972 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-22 13:35:39,974 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-22 13:35:39,974 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-22 13:35:39,978 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-22 13:35:39,978 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-22 13:35:39,978 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-22 13:35:39,980 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-22 13:35:39,980 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-22 13:35:39,981 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-22 13:35:39,982 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-22 13:35:39,983 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-22 13:35:40,002 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-22 13:35:40,003 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-22 13:35:40,004 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-22 13:35:40,004 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-22 13:35:40,005 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-22 13:35:40,005 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-22 13:35:40,006 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-22 13:35:40,010 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-22 13:35:40,011 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-22 13:35:40,012 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-22 13:35:40,065 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-22 13:35:40,065 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-22 13:35:40,070 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-22 13:35:40,071 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-22 13:35:40,071 INFO L138 SettingsManager]: * Use SBE=true [2020-12-22 13:35:40,071 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-22 13:35:40,072 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-22 13:35:40,072 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-22 13:35:40,072 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-22 13:35:40,072 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-22 13:35:40,073 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-22 13:35:40,074 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-22 13:35:40,074 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-22 13:35:40,074 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-22 13:35:40,074 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-22 13:35:40,074 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-22 13:35:40,075 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-22 13:35:40,075 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 13:35:40,075 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-22 13:35:40,075 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-22 13:35:40,075 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-22 13:35:40,076 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-22 13:35:40,076 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-22 13:35:40,076 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-22 13:35:40,076 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-22 13:35:40,076 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-22 13:35:40,511 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-22 13:35:40,553 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-22 13:35:40,558 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-22 13:35:40,559 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-22 13:35:40,560 INFO L275 PluginConnector]: CDTParser initialized [2020-12-22 13:35:40,561 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--net--fddi--defxx.ko-entry_point.cil.out.i [2020-12-22 13:35:40,650 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4c5922760/3ecef5b5d6da4c2f92f062953a426cd4/FLAG23de810e7 [2020-12-22 13:35:41,889 INFO L306 CDTParser]: Found 1 translation units. [2020-12-22 13:35:41,890 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--net--fddi--defxx.ko-entry_point.cil.out.i [2020-12-22 13:35:41,955 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4c5922760/3ecef5b5d6da4c2f92f062953a426cd4/FLAG23de810e7 [2020-12-22 13:35:42,146 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4c5922760/3ecef5b5d6da4c2f92f062953a426cd4 [2020-12-22 13:35:42,149 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-22 13:35:42,151 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-22 13:35:42,153 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-22 13:35:42,153 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-22 13:35:42,158 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-22 13:35:42,159 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 01:35:42" (1/1) ... [2020-12-22 13:35:42,160 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27924439 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:35:42, skipping insertion in model container [2020-12-22 13:35:42,161 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 01:35:42" (1/1) ... [2020-12-22 13:35:42,170 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-22 13:35:42,333 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-22 13:35:42,928 WARN L1208 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [5957] [2020-12-22 13:35:42,928 WARN L1208 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [5958-5959] [2020-12-22 13:35:43,221 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--net--fddi--defxx.ko-entry_point.cil.out.i[182958,182971] [2020-12-22 13:35:44,522 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 13:35:44,572 INFO L203 MainTranslator]: Completed pre-run [2020-12-22 13:35:44,880 WARN L1208 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [5957] [2020-12-22 13:35:44,880 WARN L1208 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [5958-5959] [2020-12-22 13:35:44,895 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--net--fddi--defxx.ko-entry_point.cil.out.i[182958,182971] [2020-12-22 13:35:45,229 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 13:35:45,604 INFO L208 MainTranslator]: Completed translation [2020-12-22 13:35:45,605 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:35:45 WrapperNode [2020-12-22 13:35:45,605 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-22 13:35:45,609 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-22 13:35:45,609 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-22 13:35:45,610 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-22 13:35:45,621 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:35:45" (1/1) ... [2020-12-22 13:35:45,764 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:35:45" (1/1) ... [2020-12-22 13:35:50,363 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-22 13:35:50,365 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-22 13:35:50,365 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-22 13:35:50,365 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-22 13:35:50,378 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:35:45" (1/1) ... [2020-12-22 13:35:50,378 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:35:45" (1/1) ... [2020-12-22 13:35:51,524 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:35:45" (1/1) ... [2020-12-22 13:35:51,525 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:35:45" (1/1) ... [2020-12-22 13:35:53,572 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:35:45" (1/1) ... [2020-12-22 13:35:54,045 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:35:45" (1/1) ... [2020-12-22 13:35:55,071 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:35:45" (1/1) ... [2020-12-22 13:35:55,968 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-22 13:35:55,972 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-22 13:35:55,972 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-22 13:35:55,973 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-22 13:35:55,974 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:35:45" (1/1) ... No working directory specified, using /storage/repos/ultimate/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 [2020-12-22 13:35:56,093 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2020-12-22 13:35:56,093 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2020-12-22 13:35:56,093 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-22 13:35:56,094 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-12-22 13:35:56,094 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-22 13:35:56,094 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-12-22 13:35:56,094 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2020-12-22 13:35:56,094 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2020-12-22 13:35:56,094 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-22 13:35:56,095 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-22 13:35:56,095 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-12-22 13:35:56,095 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-12-22 13:35:56,095 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-22 13:35:56,095 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-22 13:35:56,095 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-22 13:38:05,494 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-22 13:38:05,495 INFO L299 CfgBuilder]: Removed 21438 assume(true) statements. [2020-12-22 13:38:05,510 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 01:38:05 BoogieIcfgContainer [2020-12-22 13:38:05,511 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-22 13:38:05,513 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-22 13:38:05,513 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-22 13:38:05,517 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-22 13:38:05,517 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 01:35:42" (1/3) ... [2020-12-22 13:38:05,518 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10ce5630 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 01:38:05, skipping insertion in model container [2020-12-22 13:38:05,518 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:35:45" (2/3) ... [2020-12-22 13:38:05,518 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10ce5630 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 01:38:05, skipping insertion in model container [2020-12-22 13:38:05,518 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 01:38:05" (3/3) ... [2020-12-22 13:38:05,520 INFO L111 eAbstractionObserver]: Analyzing ICFG 43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--net--fddi--defxx.ko-entry_point.cil.out.i [2020-12-22 13:38:05,527 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-22 13:38:05,537 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 50 error locations. [2020-12-22 13:38:05,557 INFO L253 AbstractCegarLoop]: Starting to check reachability of 50 error locations. [2020-12-22 13:38:05,630 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-22 13:38:05,630 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-22 13:38:05,630 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-22 13:38:05,630 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-22 13:38:05,630 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-22 13:38:05,630 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-22 13:38:05,631 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-22 13:38:05,631 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-22 13:38:05,826 INFO L276 IsEmpty]: Start isEmpty. Operand 14702 states. [2020-12-22 13:38:05,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-12-22 13:38:05,854 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 13:38:05,855 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 13:38:05,856 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr45ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr40ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr41ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr49ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr44ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr39ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr48ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr43ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr47ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr37ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr46ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr42ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 13:38:05,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 13:38:05,863 INFO L82 PathProgramCache]: Analyzing trace with hash -605488511, now seen corresponding path program 1 times [2020-12-22 13:38:05,873 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 13:38:05,874 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1270724241] [2020-12-22 13:38:05,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 13:38:06,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 13:38:06,597 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 13:38:06,598 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1270724241] [2020-12-22 13:38:06,599 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 13:38:06,599 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 13:38:06,600 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [496729812] [2020-12-22 13:38:06,605 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 13:38:06,605 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 13:38:06,619 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 13:38:06,620 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 13:38:06,622 INFO L87 Difference]: Start difference. First operand 14702 states. Second operand 4 states. [2020-12-22 13:38:08,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 13:38:08,528 INFO L93 Difference]: Finished difference Result 45310 states and 63169 transitions. [2020-12-22 13:38:08,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 13:38:08,531 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 43 [2020-12-22 13:38:08,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 13:38:08,724 INFO L225 Difference]: With dead ends: 45310 [2020-12-22 13:38:08,724 INFO L226 Difference]: Without dead ends: 30412 [2020-12-22 13:38:08,773 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-22 13:38:08,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30412 states. [2020-12-22 13:38:09,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30412 to 16758. [2020-12-22 13:38:09,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16758 states. [2020-12-22 13:38:09,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16758 states to 16758 states and 23155 transitions. [2020-12-22 13:38:09,885 INFO L78 Accepts]: Start accepts. Automaton has 16758 states and 23155 transitions. Word has length 43 [2020-12-22 13:38:09,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 13:38:09,886 INFO L481 AbstractCegarLoop]: Abstraction has 16758 states and 23155 transitions. [2020-12-22 13:38:09,886 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 13:38:09,886 INFO L276 IsEmpty]: Start isEmpty. Operand 16758 states and 23155 transitions. [2020-12-22 13:38:09,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-12-22 13:38:09,896 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 13:38:09,896 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 13:38:09,897 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-22 13:38:09,897 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr45ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr40ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr41ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr49ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr44ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr39ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr48ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr43ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr47ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr37ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr46ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr42ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 13:38:09,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 13:38:09,899 INFO L82 PathProgramCache]: Analyzing trace with hash -407879037, now seen corresponding path program 1 times [2020-12-22 13:38:09,899 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 13:38:09,899 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [404677185] [2020-12-22 13:38:09,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 13:38:10,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 13:38:10,187 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 13:38:10,187 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [404677185] [2020-12-22 13:38:10,188 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 13:38:10,188 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 13:38:10,188 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [786803405] [2020-12-22 13:38:10,191 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 13:38:10,191 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 13:38:10,192 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 13:38:10,192 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 13:38:10,193 INFO L87 Difference]: Start difference. First operand 16758 states and 23155 transitions. Second operand 4 states. [2020-12-22 13:38:12,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 13:38:12,034 INFO L93 Difference]: Finished difference Result 55748 states and 77467 transitions. [2020-12-22 13:38:12,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 13:38:12,036 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 44 [2020-12-22 13:38:12,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 13:38:12,147 INFO L225 Difference]: With dead ends: 55748 [2020-12-22 13:38:12,147 INFO L226 Difference]: Without dead ends: 39008 [2020-12-22 13:38:12,186 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-22 13:38:12,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39008 states. [2020-12-22 13:38:13,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39008 to 30314. [2020-12-22 13:38:13,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30314 states. [2020-12-22 13:38:13,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30314 states to 30314 states and 41997 transitions. [2020-12-22 13:38:13,503 INFO L78 Accepts]: Start accepts. Automaton has 30314 states and 41997 transitions. Word has length 44 [2020-12-22 13:38:13,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 13:38:13,503 INFO L481 AbstractCegarLoop]: Abstraction has 30314 states and 41997 transitions. [2020-12-22 13:38:13,503 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 13:38:13,504 INFO L276 IsEmpty]: Start isEmpty. Operand 30314 states and 41997 transitions. [2020-12-22 13:38:13,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-12-22 13:38:13,513 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 13:38:13,514 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 13:38:13,514 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-22 13:38:13,515 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr45ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr40ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr41ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr49ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr44ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr39ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr48ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr43ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr47ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr37ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr46ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr42ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 13:38:13,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 13:38:13,518 INFO L82 PathProgramCache]: Analyzing trace with hash 1423058640, now seen corresponding path program 1 times [2020-12-22 13:38:13,518 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 13:38:13,520 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1867006821] [2020-12-22 13:38:13,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 13:38:13,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 13:38:13,756 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 13:38:13,757 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1867006821] [2020-12-22 13:38:13,757 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 13:38:13,758 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 13:38:13,759 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1208951267] [2020-12-22 13:38:13,762 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 13:38:13,763 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 13:38:13,774 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 13:38:13,774 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 13:38:13,775 INFO L87 Difference]: Start difference. First operand 30314 states and 41997 transitions. Second operand 4 states. [2020-12-22 13:38:16,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 13:38:16,401 INFO L93 Difference]: Finished difference Result 101940 states and 142035 transitions. [2020-12-22 13:38:16,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 13:38:16,402 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 45 [2020-12-22 13:38:16,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 13:38:16,665 INFO L225 Difference]: With dead ends: 101940 [2020-12-22 13:38:16,666 INFO L226 Difference]: Without dead ends: 71644 [2020-12-22 13:38:16,777 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-22 13:38:16,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71644 states. [2020-12-22 13:38:18,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71644 to 54345. [2020-12-22 13:38:18,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54345 states. [2020-12-22 13:38:19,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54345 states to 54345 states and 75446 transitions. [2020-12-22 13:38:19,067 INFO L78 Accepts]: Start accepts. Automaton has 54345 states and 75446 transitions. Word has length 45 [2020-12-22 13:38:19,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 13:38:19,067 INFO L481 AbstractCegarLoop]: Abstraction has 54345 states and 75446 transitions. [2020-12-22 13:38:19,067 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 13:38:19,067 INFO L276 IsEmpty]: Start isEmpty. Operand 54345 states and 75446 transitions. [2020-12-22 13:38:19,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-12-22 13:38:19,074 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 13:38:19,074 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 13:38:19,074 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-22 13:38:19,075 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr45ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr40ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr41ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr49ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr44ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr39ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr48ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr43ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr47ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr37ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr46ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr42ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 13:38:19,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 13:38:19,076 INFO L82 PathProgramCache]: Analyzing trace with hash -1947404238, now seen corresponding path program 1 times [2020-12-22 13:38:19,076 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 13:38:19,076 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [93764136] [2020-12-22 13:38:19,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 13:38:19,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 13:38:19,256 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 13:38:19,257 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [93764136] [2020-12-22 13:38:19,257 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 13:38:19,257 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 13:38:19,257 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [98877855] [2020-12-22 13:38:19,258 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 13:38:19,258 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 13:38:19,259 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 13:38:19,259 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 13:38:19,259 INFO L87 Difference]: Start difference. First operand 54345 states and 75446 transitions. Second operand 4 states. [2020-12-22 13:38:22,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 13:38:22,985 INFO L93 Difference]: Finished difference Result 185077 states and 258454 transitions. [2020-12-22 13:38:22,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 13:38:22,986 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 46 [2020-12-22 13:38:22,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 13:38:23,468 INFO L225 Difference]: With dead ends: 185077 [2020-12-22 13:38:23,468 INFO L226 Difference]: Without dead ends: 130750 [2020-12-22 13:38:23,680 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-22 13:38:24,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130750 states. [2020-12-22 13:38:27,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130750 to 96244. [2020-12-22 13:38:27,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 96244 states. [2020-12-22 13:38:27,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96244 states to 96244 states and 133872 transitions. [2020-12-22 13:38:27,954 INFO L78 Accepts]: Start accepts. Automaton has 96244 states and 133872 transitions. Word has length 46 [2020-12-22 13:38:27,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 13:38:27,955 INFO L481 AbstractCegarLoop]: Abstraction has 96244 states and 133872 transitions. [2020-12-22 13:38:27,955 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 13:38:27,955 INFO L276 IsEmpty]: Start isEmpty. Operand 96244 states and 133872 transitions. [2020-12-22 13:38:27,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2020-12-22 13:38:27,965 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 13:38:27,967 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-12-22 13:38:27,967 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-22 13:38:27,968 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr45ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr40ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr41ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr49ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr44ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr39ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr48ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr43ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr47ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr37ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr46ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr42ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 13:38:27,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 13:38:27,968 INFO L82 PathProgramCache]: Analyzing trace with hash 514931022, now seen corresponding path program 1 times [2020-12-22 13:38:27,969 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 13:38:27,977 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1987757057] [2020-12-22 13:38:27,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 13:38:28,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 13:38:28,207 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-12-22 13:38:28,208 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1987757057] [2020-12-22 13:38:28,208 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 13:38:28,208 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 13:38:28,209 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1138921448] [2020-12-22 13:38:28,209 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 13:38:28,209 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 13:38:28,210 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 13:38:28,210 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 13:38:28,210 INFO L87 Difference]: Start difference. First operand 96244 states and 133872 transitions. Second operand 5 states. [2020-12-22 13:38:33,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 13:38:33,536 INFO L93 Difference]: Finished difference Result 281264 states and 392286 transitions. [2020-12-22 13:38:33,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-22 13:38:33,536 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 50 [2020-12-22 13:38:33,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 13:38:34,193 INFO L225 Difference]: With dead ends: 281264 [2020-12-22 13:38:34,194 INFO L226 Difference]: Without dead ends: 185038 [2020-12-22 13:38:34,398 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-12-22 13:38:34,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185038 states. [2020-12-22 13:38:38,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185038 to 96284. [2020-12-22 13:38:38,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 96284 states. [2020-12-22 13:38:38,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96284 states to 96284 states and 133912 transitions. [2020-12-22 13:38:38,484 INFO L78 Accepts]: Start accepts. Automaton has 96284 states and 133912 transitions. Word has length 50 [2020-12-22 13:38:38,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 13:38:38,485 INFO L481 AbstractCegarLoop]: Abstraction has 96284 states and 133912 transitions. [2020-12-22 13:38:38,485 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 13:38:38,485 INFO L276 IsEmpty]: Start isEmpty. Operand 96284 states and 133912 transitions. [2020-12-22 13:38:38,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-12-22 13:38:38,494 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 13:38:38,494 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 13:38:38,494 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-22 13:38:38,495 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr45ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr40ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr41ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr49ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr44ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr39ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr48ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr43ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr47ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr37ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr46ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr42ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 13:38:38,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 13:38:38,495 INFO L82 PathProgramCache]: Analyzing trace with hash 1049898244, now seen corresponding path program 1 times [2020-12-22 13:38:38,496 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 13:38:38,496 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [710799211] [2020-12-22 13:38:38,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 13:38:38,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 13:38:38,650 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 13:38:38,650 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [710799211] [2020-12-22 13:38:38,650 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 13:38:38,650 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 13:38:38,651 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1016643964] [2020-12-22 13:38:38,651 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 13:38:38,651 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 13:38:38,652 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 13:38:38,652 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 13:38:38,652 INFO L87 Difference]: Start difference. First operand 96284 states and 133912 transitions. Second operand 3 states. [2020-12-22 13:38:43,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 13:38:43,528 INFO L93 Difference]: Finished difference Result 259808 states and 360224 transitions. [2020-12-22 13:38:43,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 13:38:43,529 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 64 [2020-12-22 13:38:43,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 13:38:43,912 INFO L225 Difference]: With dead ends: 259808 [2020-12-22 13:38:43,912 INFO L226 Difference]: Without dead ends: 163542 [2020-12-22 13:38:44,102 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 13:38:44,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163542 states. [2020-12-22 13:38:48,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163542 to 158980. [2020-12-22 13:38:48,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 158980 states. [2020-12-22 13:38:48,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158980 states to 158980 states and 220060 transitions. [2020-12-22 13:38:48,897 INFO L78 Accepts]: Start accepts. Automaton has 158980 states and 220060 transitions. Word has length 64 [2020-12-22 13:38:48,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 13:38:48,897 INFO L481 AbstractCegarLoop]: Abstraction has 158980 states and 220060 transitions. [2020-12-22 13:38:48,898 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 13:38:48,898 INFO L276 IsEmpty]: Start isEmpty. Operand 158980 states and 220060 transitions. [2020-12-22 13:38:48,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2020-12-22 13:38:48,904 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 13:38:48,905 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 13:38:48,905 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-22 13:38:48,905 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr45ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr40ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr41ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr49ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr44ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr39ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr48ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr43ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr47ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr37ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr46ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr42ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 13:38:48,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 13:38:48,906 INFO L82 PathProgramCache]: Analyzing trace with hash 1485957641, now seen corresponding path program 1 times [2020-12-22 13:38:48,906 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 13:38:48,907 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [806536760] [2020-12-22 13:38:48,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 13:38:49,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 13:38:49,390 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 13:38:49,391 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [806536760] [2020-12-22 13:38:49,391 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 13:38:49,391 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 13:38:49,392 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [409823984] [2020-12-22 13:38:49,392 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 13:38:49,392 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 13:38:49,393 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 13:38:49,393 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 13:38:49,393 INFO L87 Difference]: Start difference. First operand 158980 states and 220060 transitions. Second operand 3 states. [2020-12-22 13:38:57,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 13:38:57,670 INFO L93 Difference]: Finished difference Result 470438 states and 651241 transitions. [2020-12-22 13:38:57,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 13:38:57,671 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 117 [2020-12-22 13:38:57,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 13:38:58,357 INFO L225 Difference]: With dead ends: 470438 [2020-12-22 13:38:58,357 INFO L226 Difference]: Without dead ends: 311476 [2020-12-22 13:38:58,864 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 13:38:59,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 311476 states.