java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --traceabstraction.trace.refinement.strategy SIFA_TAIPAN --sifa.abstract.domain CompoundDomain --rcfgbuilder.size.of.a.code.block LoopFreeBlock --sifa.call.summarizer TopInputCallSummarizer --sifa.fluid SizeLimitFluid --sifa.simplification.technique SIMPLIFY_QUICK -i ../../../trunk/examples/svcomp/loop-industry-pattern/aiob_4.c.v+nlh-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 03:01:50,490 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 03:01:50,492 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 03:01:50,510 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 03:01:50,510 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 03:01:50,511 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 03:01:50,512 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 03:01:50,514 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 03:01:50,515 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 03:01:50,516 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 03:01:50,517 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 03:01:50,518 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 03:01:50,519 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 03:01:50,520 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 03:01:50,520 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 03:01:50,522 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 03:01:50,522 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 03:01:50,523 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 03:01:50,525 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 03:01:50,527 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 03:01:50,529 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 03:01:50,530 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 03:01:50,531 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 03:01:50,532 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 03:01:50,534 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-10-15 03:01:50,537 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-15 03:01:50,539 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-15 03:01:50,540 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-15 03:01:50,541 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-15 03:01:50,542 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-15 03:01:50,542 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-15 03:01:50,545 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-15 03:01:50,546 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-15 03:01:50,546 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 03:01:50,547 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 03:01:50,547 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 03:01:50,551 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-15 03:01:50,572 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 03:01:50,572 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 03:01:50,574 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 03:01:50,574 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 03:01:50,574 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 03:01:50,574 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 03:01:50,575 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 03:01:50,575 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 03:01:50,575 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 03:01:50,575 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 03:01:50,576 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 03:01:50,576 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 03:01:50,577 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 03:01:50,577 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 03:01:50,577 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 03:01:50,577 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 03:01:50,578 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 03:01:50,578 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 03:01:50,578 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 03:01:50,578 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 03:01:50,579 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 03:01:50,579 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 03:01:50,579 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 03:01:50,579 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 03:01:50,579 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 03:01:50,580 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 03:01:50,580 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 03:01:50,580 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 03:01:50,580 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> SIFA_TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> CompoundDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> LoopFreeBlock Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Call Summarizer -> TopInputCallSummarizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_QUICK [2019-10-15 03:01:50,889 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 03:01:50,906 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 03:01:50,911 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 03:01:50,912 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 03:01:50,912 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 03:01:50,913 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-industry-pattern/aiob_4.c.v+nlh-reducer.c [2019-10-15 03:01:50,987 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a072ec65f/04fbe910ce2f4788bc1d8352fd569e1a/FLAG1e734e777 [2019-10-15 03:01:51,512 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 03:01:51,513 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-industry-pattern/aiob_4.c.v+nlh-reducer.c [2019-10-15 03:01:51,531 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a072ec65f/04fbe910ce2f4788bc1d8352fd569e1a/FLAG1e734e777 [2019-10-15 03:01:51,837 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a072ec65f/04fbe910ce2f4788bc1d8352fd569e1a [2019-10-15 03:01:51,853 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 03:01:51,854 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 03:01:51,855 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 03:01:51,855 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 03:01:51,859 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 03:01:51,860 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:01:51" (1/1) ... [2019-10-15 03:01:51,862 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e0b637d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:01:51, skipping insertion in model container [2019-10-15 03:01:51,863 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:01:51" (1/1) ... [2019-10-15 03:01:51,870 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 03:01:51,951 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 03:01:52,462 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 03:01:52,473 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 03:01:52,720 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 03:01:52,738 INFO L192 MainTranslator]: Completed translation [2019-10-15 03:01:52,739 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:01:52 WrapperNode [2019-10-15 03:01:52,739 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 03:01:52,740 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 03:01:52,741 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 03:01:52,741 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 03:01:52,753 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:01:52" (1/1) ... [2019-10-15 03:01:52,753 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:01:52" (1/1) ... [2019-10-15 03:01:52,787 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:01:52" (1/1) ... [2019-10-15 03:01:52,787 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:01:52" (1/1) ... [2019-10-15 03:01:52,872 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:01:52" (1/1) ... [2019-10-15 03:01:52,886 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:01:52" (1/1) ... [2019-10-15 03:01:52,903 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:01:52" (1/1) ... [2019-10-15 03:01:52,918 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 03:01:52,918 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 03:01:52,919 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 03:01:52,919 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 03:01:52,920 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:01:52" (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 [2019-10-15 03:01:52,992 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 03:01:52,992 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 03:01:52,993 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 03:01:52,993 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 03:01:52,993 INFO L130 BoogieDeclarations]: Found specification of procedure Id_MCDC_89 [2019-10-15 03:01:52,994 INFO L130 BoogieDeclarations]: Found specification of procedure fopen [2019-10-15 03:01:52,995 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 03:01:52,995 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-10-15 03:01:52,995 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-15 03:01:52,996 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-15 03:01:52,996 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-15 03:01:52,997 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-15 03:01:52,997 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-15 03:01:52,997 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 03:01:52,998 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 03:01:52,998 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-15 03:01:53,000 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-15 03:01:55,485 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 03:01:55,485 INFO L284 CfgBuilder]: Removed 0 assume(true) statements. [2019-10-15 03:01:55,486 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:01:55 BoogieIcfgContainer [2019-10-15 03:01:55,487 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 03:01:55,488 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 03:01:55,488 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 03:01:55,491 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 03:01:55,491 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 03:01:51" (1/3) ... [2019-10-15 03:01:55,492 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c4df168 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 03:01:55, skipping insertion in model container [2019-10-15 03:01:55,492 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:01:52" (2/3) ... [2019-10-15 03:01:55,493 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c4df168 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 03:01:55, skipping insertion in model container [2019-10-15 03:01:55,493 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:01:55" (3/3) ... [2019-10-15 03:01:55,495 INFO L109 eAbstractionObserver]: Analyzing ICFG aiob_4.c.v+nlh-reducer.c [2019-10-15 03:01:55,507 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 03:01:55,515 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 03:01:55,526 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 03:01:55,564 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 03:01:55,564 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 03:01:55,565 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 03:01:55,565 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 03:01:55,565 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 03:01:55,565 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 03:01:55,565 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 03:01:55,565 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 03:01:55,593 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states. [2019-10-15 03:01:55,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2019-10-15 03:01:55,615 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:01:55,616 INFO L380 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:01:55,620 INFO L410 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:01:55,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:01:55,626 INFO L82 PathProgramCache]: Analyzing trace with hash 1016729483, now seen corresponding path program 1 times [2019-10-15 03:01:55,636 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:01:55,637 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1457532924] [2019-10-15 03:01:55,637 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:01:55,637 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:01:55,637 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:01:57,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:02:03,174 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 03:02:03,175 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1457532924] [2019-10-15 03:02:03,175 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:02:03,176 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [68] imperfect sequences [] total 68 [2019-10-15 03:02:03,176 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [726635456] [2019-10-15 03:02:03,181 INFO L442 AbstractCegarLoop]: Interpolant automaton has 68 states [2019-10-15 03:02:03,182 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:02:03,197 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 68 interpolants. [2019-10-15 03:02:03,202 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=156, Invalid=4400, Unknown=0, NotChecked=0, Total=4556 [2019-10-15 03:02:03,204 INFO L87 Difference]: Start difference. First operand 183 states. Second operand 68 states.