/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/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf -i ../../../trunk/examples/svcomp/ldv-consumption/linux-3.8-rc1-32_7a-drivers--hwmon--w83793.ko-ldv_main0.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-6598664 [2019-11-24 01:12:39,814 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-24 01:12:39,819 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-24 01:12:39,834 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-24 01:12:39,835 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-24 01:12:39,836 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-24 01:12:39,837 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-24 01:12:39,839 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-24 01:12:39,841 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-24 01:12:39,842 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-24 01:12:39,843 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-24 01:12:39,850 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-24 01:12:39,850 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-24 01:12:39,852 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-24 01:12:39,853 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-24 01:12:39,854 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-24 01:12:39,854 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-24 01:12:39,855 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-24 01:12:39,857 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-24 01:12:39,859 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-24 01:12:39,860 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-24 01:12:39,862 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-24 01:12:39,863 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-24 01:12:39,863 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-24 01:12:39,866 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-24 01:12:39,866 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-24 01:12:39,866 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-24 01:12:39,867 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-24 01:12:39,867 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-24 01:12:39,868 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-24 01:12:39,869 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-24 01:12:39,869 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-24 01:12:39,870 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-24 01:12:39,871 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-24 01:12:39,872 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-24 01:12:39,872 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-24 01:12:39,873 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-24 01:12:39,873 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-24 01:12:39,873 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-24 01:12:39,874 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-24 01:12:39,874 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-24 01:12:39,875 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf [2019-11-24 01:12:39,890 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-24 01:12:39,891 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-24 01:12:39,892 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-24 01:12:39,892 INFO L138 SettingsManager]: * User list type=DISABLED [2019-11-24 01:12:39,892 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-11-24 01:12:39,892 INFO L138 SettingsManager]: * Explicit value domain=true [2019-11-24 01:12:39,892 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-11-24 01:12:39,893 INFO L138 SettingsManager]: * Octagon Domain=false [2019-11-24 01:12:39,893 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-11-24 01:12:39,893 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-11-24 01:12:39,893 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-11-24 01:12:39,893 INFO L138 SettingsManager]: * Interval Domain=false [2019-11-24 01:12:39,894 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-11-24 01:12:39,894 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-11-24 01:12:39,894 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-11-24 01:12:39,895 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-24 01:12:39,895 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-24 01:12:39,895 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-24 01:12:39,895 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-24 01:12:39,896 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-24 01:12:39,896 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-24 01:12:39,896 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-24 01:12:39,896 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-24 01:12:39,896 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-24 01:12:39,896 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-24 01:12:39,897 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-24 01:12:39,897 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-24 01:12:39,897 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-24 01:12:39,897 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-24 01:12:39,897 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-24 01:12:39,898 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-24 01:12:39,898 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-24 01:12:39,898 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-24 01:12:39,898 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-11-24 01:12:39,899 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-24 01:12:39,899 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-24 01:12:39,899 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-24 01:12:39,899 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-11-24 01:12:40,173 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-24 01:12:40,185 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-24 01:12:40,189 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-24 01:12:40,190 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-24 01:12:40,191 INFO L275 PluginConnector]: CDTParser initialized [2019-11-24 01:12:40,192 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-consumption/linux-3.8-rc1-32_7a-drivers--hwmon--w83793.ko-ldv_main0.cil.out.i [2019-11-24 01:12:40,264 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3d1f4ec44/42aa66bae375461f8338bc945e07d832/FLAG5e20f38de [2019-11-24 01:12:41,120 INFO L306 CDTParser]: Found 1 translation units. [2019-11-24 01:12:41,121 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-consumption/linux-3.8-rc1-32_7a-drivers--hwmon--w83793.ko-ldv_main0.cil.out.i [2019-11-24 01:12:41,167 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3d1f4ec44/42aa66bae375461f8338bc945e07d832/FLAG5e20f38de [2019-11-24 01:12:41,583 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3d1f4ec44/42aa66bae375461f8338bc945e07d832 [2019-11-24 01:12:41,592 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-24 01:12:41,594 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-24 01:12:41,595 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-24 01:12:41,595 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-24 01:12:41,599 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-24 01:12:41,600 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 01:12:41" (1/1) ... [2019-11-24 01:12:41,605 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@69d1db3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:12:41, skipping insertion in model container [2019-11-24 01:12:41,605 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 01:12:41" (1/1) ... [2019-11-24 01:12:41,611 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-24 01:12:41,746 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-24 01:12:43,895 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-24 01:12:44,075 INFO L203 MainTranslator]: Completed pre-run [2019-11-24 01:12:44,559 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-24 01:12:45,616 INFO L208 MainTranslator]: Completed translation [2019-11-24 01:12:45,617 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:12:45 WrapperNode [2019-11-24 01:12:45,617 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-24 01:12:45,618 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-24 01:12:45,618 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-24 01:12:45,618 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-24 01:12:45,627 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:12:45" (1/1) ... [2019-11-24 01:12:45,756 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:12:45" (1/1) ... [2019-11-24 01:12:46,084 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-24 01:12:46,085 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-24 01:12:46,085 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-24 01:12:46,085 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-24 01:12:46,096 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:12:45" (1/1) ... [2019-11-24 01:12:46,096 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:12:45" (1/1) ... [2019-11-24 01:12:46,154 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:12:45" (1/1) ... [2019-11-24 01:12:46,155 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:12:45" (1/1) ... [2019-11-24 01:12:46,323 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:12:45" (1/1) ... [2019-11-24 01:12:46,351 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:12:45" (1/1) ... [2019-11-24 01:12:46,385 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:12:45" (1/1) ... [2019-11-24 01:12:46,428 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-24 01:12:46,428 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-24 01:12:46,429 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-24 01:12:46,429 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-24 01:12:46,430 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:12:45" (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 [2019-11-24 01:12:46,499 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-24 01:12:46,499 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-24 01:12:46,499 INFO L130 BoogieDeclarations]: Found specification of procedure __xadd_wrong_size [2019-11-24 01:12:46,500 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-24 01:12:46,500 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-11-24 01:12:46,500 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-24 01:12:46,500 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-24 01:12:46,500 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-24 01:12:46,501 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-24 01:12:46,501 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-24 01:12:46,501 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-24 01:12:46,501 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-24 01:13:43,002 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-24 01:13:43,002 INFO L284 CfgBuilder]: Removed 1021 assume(true) statements. [2019-11-24 01:13:43,003 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 01:13:43 BoogieIcfgContainer [2019-11-24 01:13:43,004 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-24 01:13:43,005 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-24 01:13:43,005 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-24 01:13:43,008 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-24 01:13:43,008 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 01:12:41" (1/3) ... [2019-11-24 01:13:43,009 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c786c0e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 01:13:43, skipping insertion in model container [2019-11-24 01:13:43,010 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:12:45" (2/3) ... [2019-11-24 01:13:43,010 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c786c0e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 01:13:43, skipping insertion in model container [2019-11-24 01:13:43,010 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 01:13:43" (3/3) ... [2019-11-24 01:13:43,012 INFO L109 eAbstractionObserver]: Analyzing ICFG linux-3.8-rc1-32_7a-drivers--hwmon--w83793.ko-ldv_main0.cil.out.i [2019-11-24 01:13:43,020 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-24 01:13:43,028 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 43 error locations. [2019-11-24 01:13:43,036 INFO L249 AbstractCegarLoop]: Starting to check reachability of 43 error locations. [2019-11-24 01:13:43,065 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-24 01:13:43,065 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-24 01:13:43,065 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-24 01:13:43,066 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-24 01:13:43,066 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-24 01:13:43,066 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-24 01:13:43,066 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-24 01:13:43,066 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-24 01:13:43,096 INFO L276 IsEmpty]: Start isEmpty. Operand 431 states. [2019-11-24 01:13:43,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-11-24 01:13:43,102 INFO L402 BasicCegarLoop]: Found error trace [2019-11-24 01:13:43,103 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-11-24 01:13:43,104 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr40ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr41ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr37ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr39ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr42ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-24 01:13:43,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-24 01:13:43,110 INFO L82 PathProgramCache]: Analyzing trace with hash -1092807091, now seen corresponding path program 1 times [2019-11-24 01:13:43,120 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-24 01:13:43,121 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [329201667] [2019-11-24 01:13:43,121 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-24 01:13:44,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-24 01:13:44,730 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-24 01:13:44,731 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [329201667] [2019-11-24 01:13:44,733 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-24 01:13:44,734 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-24 01:13:44,735 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [760741269] [2019-11-24 01:13:44,742 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-24 01:13:44,743 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-24 01:13:44,757 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-24 01:13:44,759 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-24 01:13:44,762 INFO L87 Difference]: Start difference. First operand 431 states. Second operand 3 states. [2019-11-24 01:13:44,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-24 01:13:44,887 INFO L93 Difference]: Finished difference Result 859 states and 1269 transitions. [2019-11-24 01:13:44,887 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-24 01:13:44,889 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2019-11-24 01:13:44,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-24 01:13:44,914 INFO L225 Difference]: With dead ends: 859 [2019-11-24 01:13:44,914 INFO L226 Difference]: Without dead ends: 427 [2019-11-24 01:13:44,923 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-24 01:13:44,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 427 states. [2019-11-24 01:13:45,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 427 to 427. [2019-11-24 01:13:45,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 427 states. [2019-11-24 01:13:45,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 427 states to 427 states and 586 transitions. [2019-11-24 01:13:45,007 INFO L78 Accepts]: Start accepts. Automaton has 427 states and 586 transitions. Word has length 5 [2019-11-24 01:13:45,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-24 01:13:45,008 INFO L462 AbstractCegarLoop]: Abstraction has 427 states and 586 transitions. [2019-11-24 01:13:45,008 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-24 01:13:45,008 INFO L276 IsEmpty]: Start isEmpty. Operand 427 states and 586 transitions. [2019-11-24 01:13:45,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-11-24 01:13:45,009 INFO L402 BasicCegarLoop]: Found error trace [2019-11-24 01:13:45,009 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2019-11-24 01:13:45,010 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr40ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr41ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr37ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr39ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr42ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-24 01:13:45,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-24 01:13:45,010 INFO L82 PathProgramCache]: Analyzing trace with hash 482719936, now seen corresponding path program 1 times [2019-11-24 01:13:45,010 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-24 01:13:45,011 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [153526389] [2019-11-24 01:13:45,011 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-24 01:13:45,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-24 01:13:45,901 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-24 01:13:45,901 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [153526389] [2019-11-24 01:13:45,901 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-24 01:13:45,901 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-24 01:13:45,902 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1495265188] [2019-11-24 01:13:45,905 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-24 01:13:45,905 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-24 01:13:45,906 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-24 01:13:45,906 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-24 01:13:45,906 INFO L87 Difference]: Start difference. First operand 427 states and 586 transitions. Second operand 3 states. [2019-11-24 01:13:45,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-24 01:13:45,934 INFO L93 Difference]: Finished difference Result 427 states and 586 transitions. [2019-11-24 01:13:45,935 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-24 01:13:45,935 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2019-11-24 01:13:45,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-24 01:13:45,940 INFO L225 Difference]: With dead ends: 427 [2019-11-24 01:13:45,941 INFO L226 Difference]: Without dead ends: 425 [2019-11-24 01:13:45,942 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-24 01:13:45,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 425 states. [2019-11-24 01:13:45,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 425 to 425. [2019-11-24 01:13:45,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 425 states. [2019-11-24 01:13:46,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 425 states to 425 states and 584 transitions. [2019-11-24 01:13:46,000 INFO L78 Accepts]: Start accepts. Automaton has 425 states and 584 transitions. Word has length 6 [2019-11-24 01:13:46,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-24 01:13:46,002 INFO L462 AbstractCegarLoop]: Abstraction has 425 states and 584 transitions. [2019-11-24 01:13:46,002 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-24 01:13:46,002 INFO L276 IsEmpty]: Start isEmpty. Operand 425 states and 584 transitions. [2019-11-24 01:13:46,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-11-24 01:13:46,003 INFO L402 BasicCegarLoop]: Found error trace [2019-11-24 01:13:46,003 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-24 01:13:46,003 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr40ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr41ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr37ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr39ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr42ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-24 01:13:46,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-24 01:13:46,004 INFO L82 PathProgramCache]: Analyzing trace with hash 2079417527, now seen corresponding path program 1 times [2019-11-24 01:13:46,004 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-24 01:13:46,005 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1134430303] [2019-11-24 01:13:46,005 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-24 01:13:46,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-24 01:13:46,748 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-24 01:13:46,749 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1134430303] [2019-11-24 01:13:46,749 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-24 01:13:46,749 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-24 01:13:46,751 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [360711176] [2019-11-24 01:13:46,751 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-24 01:13:46,751 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-24 01:13:46,751 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-24 01:13:46,752 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-24 01:13:46,752 INFO L87 Difference]: Start difference. First operand 425 states and 584 transitions. Second operand 3 states. [2019-11-24 01:13:46,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-24 01:13:46,772 INFO L93 Difference]: Finished difference Result 425 states and 584 transitions. [2019-11-24 01:13:46,773 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-24 01:13:46,773 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2019-11-24 01:13:46,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-24 01:13:46,775 INFO L225 Difference]: With dead ends: 425 [2019-11-24 01:13:46,775 INFO L226 Difference]: Without dead ends: 423 [2019-11-24 01:13:46,776 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-24 01:13:46,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 423 states. [2019-11-24 01:13:46,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 423 to 423. [2019-11-24 01:13:46,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 423 states. [2019-11-24 01:13:46,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 423 states to 423 states and 582 transitions. [2019-11-24 01:13:46,796 INFO L78 Accepts]: Start accepts. Automaton has 423 states and 582 transitions. Word has length 7 [2019-11-24 01:13:46,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-24 01:13:46,796 INFO L462 AbstractCegarLoop]: Abstraction has 423 states and 582 transitions. [2019-11-24 01:13:46,796 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-24 01:13:46,796 INFO L276 IsEmpty]: Start isEmpty. Operand 423 states and 582 transitions. [2019-11-24 01:13:46,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-11-24 01:13:46,797 INFO L402 BasicCegarLoop]: Found error trace [2019-11-24 01:13:46,797 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-11-24 01:13:46,799 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr40ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr41ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr37ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr39ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr42ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-24 01:13:46,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-24 01:13:46,799 INFO L82 PathProgramCache]: Analyzing trace with hash 37435306, now seen corresponding path program 1 times [2019-11-24 01:13:46,799 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-24 01:13:46,800 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2003670501] [2019-11-24 01:13:46,800 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-24 01:13:47,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-24 01:13:48,717 WARN L192 SmtUtils]: Spent 1.13 s on a formula simplification that was a NOOP. DAG size: 3 [2019-11-24 01:13:48,727 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-24 01:13:48,728 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2003670501] [2019-11-24 01:13:48,728 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-24 01:13:48,728 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-24 01:13:48,729 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1848421630] [2019-11-24 01:13:48,732 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-24 01:13:48,732 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-24 01:13:48,733 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-24 01:13:48,733 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-24 01:13:48,733 INFO L87 Difference]: Start difference. First operand 423 states and 582 transitions. Second operand 3 states. [2019-11-24 01:13:48,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-24 01:13:48,918 INFO L93 Difference]: Finished difference Result 760 states and 1062 transitions. [2019-11-24 01:13:48,919 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-24 01:13:48,919 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2019-11-24 01:13:48,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-24 01:13:48,924 INFO L225 Difference]: With dead ends: 760 [2019-11-24 01:13:48,924 INFO L226 Difference]: Without dead ends: 746 [2019-11-24 01:13:48,925 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-24 01:13:48,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 746 states. [2019-11-24 01:13:48,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 746 to 706. [2019-11-24 01:13:48,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 706 states. [2019-11-24 01:13:48,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 706 states to 706 states and 1028 transitions. [2019-11-24 01:13:48,964 INFO L78 Accepts]: Start accepts. Automaton has 706 states and 1028 transitions. Word has length 8 [2019-11-24 01:13:48,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-24 01:13:48,965 INFO L462 AbstractCegarLoop]: Abstraction has 706 states and 1028 transitions. [2019-11-24 01:13:48,965 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-24 01:13:48,965 INFO L276 IsEmpty]: Start isEmpty. Operand 706 states and 1028 transitions. [2019-11-24 01:13:48,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-11-24 01:13:48,966 INFO L402 BasicCegarLoop]: Found error trace [2019-11-24 01:13:48,967 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-24 01:13:48,967 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr40ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr41ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr37ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr39ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr42ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-24 01:13:48,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-24 01:13:48,968 INFO L82 PathProgramCache]: Analyzing trace with hash 1160495905, now seen corresponding path program 1 times [2019-11-24 01:13:48,968 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-24 01:13:48,968 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1137686717] [2019-11-24 01:13:48,968 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-24 01:13:49,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-24 01:13:49,679 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-24 01:13:49,680 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1137686717] [2019-11-24 01:13:49,680 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-24 01:13:49,680 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-24 01:13:49,680 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1998671401] [2019-11-24 01:13:49,681 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-24 01:13:49,681 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-24 01:13:49,681 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-24 01:13:49,681 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-24 01:13:49,682 INFO L87 Difference]: Start difference. First operand 706 states and 1028 transitions. Second operand 3 states. [2019-11-24 01:13:49,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-24 01:13:49,851 INFO L93 Difference]: Finished difference Result 706 states and 1028 transitions. [2019-11-24 01:13:49,852 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-24 01:13:49,852 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2019-11-24 01:13:49,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-24 01:13:49,856 INFO L225 Difference]: With dead ends: 706 [2019-11-24 01:13:49,856 INFO L226 Difference]: Without dead ends: 673 [2019-11-24 01:13:49,857 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-24 01:13:49,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 673 states. [2019-11-24 01:13:49,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 673 to 673. [2019-11-24 01:13:49,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 673 states. [2019-11-24 01:13:49,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 673 states to 673 states and 981 transitions. [2019-11-24 01:13:49,886 INFO L78 Accepts]: Start accepts. Automaton has 673 states and 981 transitions. Word has length 9 [2019-11-24 01:13:49,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-24 01:13:49,886 INFO L462 AbstractCegarLoop]: Abstraction has 673 states and 981 transitions. [2019-11-24 01:13:49,886 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-24 01:13:49,887 INFO L276 IsEmpty]: Start isEmpty. Operand 673 states and 981 transitions. [2019-11-24 01:13:49,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-11-24 01:13:49,888 INFO L402 BasicCegarLoop]: Found error trace [2019-11-24 01:13:49,888 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-24 01:13:49,889 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr40ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr41ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr37ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr39ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr42ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-24 01:13:49,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-24 01:13:49,889 INFO L82 PathProgramCache]: Analyzing trace with hash 464878903, now seen corresponding path program 1 times [2019-11-24 01:13:49,889 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-24 01:13:49,890 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1466571345] [2019-11-24 01:13:49,890 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-24 01:13:50,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-24 01:13:50,556 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-24 01:13:50,556 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1466571345] [2019-11-24 01:13:50,556 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-24 01:13:50,557 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-24 01:13:50,557 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [246400339] [2019-11-24 01:13:50,557 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-24 01:13:50,557 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-24 01:13:50,558 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-24 01:13:50,558 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-24 01:13:50,558 INFO L87 Difference]: Start difference. First operand 673 states and 981 transitions. Second operand 3 states. [2019-11-24 01:13:50,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-24 01:13:50,651 INFO L93 Difference]: Finished difference Result 1692 states and 2449 transitions. [2019-11-24 01:13:50,652 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-24 01:13:50,652 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2019-11-24 01:13:50,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-24 01:13:50,657 INFO L225 Difference]: With dead ends: 1692 [2019-11-24 01:13:50,658 INFO L226 Difference]: Without dead ends: 1020 [2019-11-24 01:13:50,660 INFO L630 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 [2019-11-24 01:13:50,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1020 states. [2019-11-24 01:13:50,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1020 to 982. [2019-11-24 01:13:50,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 982 states. [2019-11-24 01:13:50,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 982 states to 982 states and 1444 transitions. [2019-11-24 01:13:50,705 INFO L78 Accepts]: Start accepts. Automaton has 982 states and 1444 transitions. Word has length 13 [2019-11-24 01:13:50,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-24 01:13:50,705 INFO L462 AbstractCegarLoop]: Abstraction has 982 states and 1444 transitions. [2019-11-24 01:13:50,705 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-24 01:13:50,706 INFO L276 IsEmpty]: Start isEmpty. Operand 982 states and 1444 transitions. [2019-11-24 01:13:50,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-11-24 01:13:50,707 INFO L402 BasicCegarLoop]: Found error trace [2019-11-24 01:13:50,707 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-24 01:13:50,707 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr40ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr41ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr37ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr39ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr42ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-24 01:13:50,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-24 01:13:50,708 INFO L82 PathProgramCache]: Analyzing trace with hash -964435254, now seen corresponding path program 1 times [2019-11-24 01:13:50,708 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-24 01:13:50,708 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [473576151] [2019-11-24 01:13:50,709 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-24 01:13:54,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-24 01:13:54,680 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-24 01:13:54,681 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [473576151] [2019-11-24 01:13:54,681 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-24 01:13:54,681 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-24 01:13:54,682 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1672729022] [2019-11-24 01:13:54,682 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-24 01:13:54,682 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-24 01:13:54,682 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-24 01:13:54,683 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-24 01:13:54,683 INFO L87 Difference]: Start difference. First operand 982 states and 1444 transitions. Second operand 4 states.