/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/product-lines/email_spec3_product27.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-6598664 [2019-11-24 05:00:10,537 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-24 05:00:10,540 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-24 05:00:10,556 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-24 05:00:10,557 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-24 05:00:10,559 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-24 05:00:10,560 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-24 05:00:10,570 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-24 05:00:10,571 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-24 05:00:10,572 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-24 05:00:10,573 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-24 05:00:10,574 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-24 05:00:10,575 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-24 05:00:10,575 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-24 05:00:10,576 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-24 05:00:10,578 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-24 05:00:10,578 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-24 05:00:10,579 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-24 05:00:10,581 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-24 05:00:10,583 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-24 05:00:10,584 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-24 05:00:10,585 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-24 05:00:10,586 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-24 05:00:10,587 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-24 05:00:10,589 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-11-24 05:00:10,592 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-24 05:00:10,593 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-24 05:00:10,594 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-24 05:00:10,594 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-24 05:00:10,595 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-24 05:00:10,596 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-24 05:00:10,596 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-24 05:00:10,596 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-24 05:00:10,597 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-24 05:00:10,597 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-24 05:00:10,600 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-24 05:00:10,602 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 05:00:10,630 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-24 05:00:10,630 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-24 05:00:10,636 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-24 05:00:10,636 INFO L138 SettingsManager]: * User list type=DISABLED [2019-11-24 05:00:10,636 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-11-24 05:00:10,637 INFO L138 SettingsManager]: * Explicit value domain=true [2019-11-24 05:00:10,637 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-11-24 05:00:10,637 INFO L138 SettingsManager]: * Octagon Domain=false [2019-11-24 05:00:10,637 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-11-24 05:00:10,637 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-11-24 05:00:10,637 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-11-24 05:00:10,638 INFO L138 SettingsManager]: * Interval Domain=false [2019-11-24 05:00:10,639 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-11-24 05:00:10,639 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-11-24 05:00:10,639 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-11-24 05:00:10,640 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-24 05:00:10,640 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-24 05:00:10,641 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-24 05:00:10,641 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-24 05:00:10,641 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-24 05:00:10,641 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-24 05:00:10,641 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-24 05:00:10,641 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-24 05:00:10,642 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-24 05:00:10,642 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-24 05:00:10,642 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-24 05:00:10,642 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-24 05:00:10,642 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-24 05:00:10,643 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-24 05:00:10,643 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-24 05:00:10,644 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-24 05:00:10,644 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-24 05:00:10,644 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-24 05:00:10,644 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-11-24 05:00:10,645 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-24 05:00:10,645 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-24 05:00:10,645 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-24 05:00:10,645 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-11-24 05:00:10,912 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-24 05:00:10,929 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-24 05:00:10,934 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-24 05:00:10,935 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-24 05:00:10,935 INFO L275 PluginConnector]: CDTParser initialized [2019-11-24 05:00:10,936 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec3_product27.cil.c [2019-11-24 05:00:11,012 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dcb6d329b/be5fb87afbfa49059a2361993abdb0f8/FLAGbfadfae15 [2019-11-24 05:00:11,584 INFO L306 CDTParser]: Found 1 translation units. [2019-11-24 05:00:11,584 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec3_product27.cil.c [2019-11-24 05:00:11,604 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dcb6d329b/be5fb87afbfa49059a2361993abdb0f8/FLAGbfadfae15 [2019-11-24 05:00:11,839 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dcb6d329b/be5fb87afbfa49059a2361993abdb0f8 [2019-11-24 05:00:11,847 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-24 05:00:11,849 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-24 05:00:11,850 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-24 05:00:11,850 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-24 05:00:11,853 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-24 05:00:11,854 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 05:00:11" (1/1) ... [2019-11-24 05:00:11,857 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31856daf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 05:00:11, skipping insertion in model container [2019-11-24 05:00:11,857 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 05:00:11" (1/1) ... [2019-11-24 05:00:11,865 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-24 05:00:11,947 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-24 05:00:12,652 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-24 05:00:12,668 INFO L203 MainTranslator]: Completed pre-run [2019-11-24 05:00:12,806 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-24 05:00:12,949 INFO L208 MainTranslator]: Completed translation [2019-11-24 05:00:12,950 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 05:00:12 WrapperNode [2019-11-24 05:00:12,950 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-24 05:00:12,951 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-24 05:00:12,951 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-24 05:00:12,951 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-24 05:00:12,960 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 05:00:12" (1/1) ... [2019-11-24 05:00:13,024 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 05:00:12" (1/1) ... [2019-11-24 05:00:13,191 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-24 05:00:13,192 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-24 05:00:13,192 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-24 05:00:13,192 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-24 05:00:13,202 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 05:00:12" (1/1) ... [2019-11-24 05:00:13,203 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 05:00:12" (1/1) ... [2019-11-24 05:00:13,227 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 05:00:12" (1/1) ... [2019-11-24 05:00:13,228 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 05:00:12" (1/1) ... [2019-11-24 05:00:13,306 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 05:00:12" (1/1) ... [2019-11-24 05:00:13,352 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 05:00:12" (1/1) ... [2019-11-24 05:00:13,369 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 05:00:12" (1/1) ... [2019-11-24 05:00:13,410 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-24 05:00:13,411 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-24 05:00:13,411 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-24 05:00:13,411 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-24 05:00:13,412 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 05:00:12" (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 05:00:13,494 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-11-24 05:00:13,496 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-24 05:00:13,497 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-24 05:00:13,497 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-24 05:00:13,497 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-24 05:00:29,974 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-24 05:00:29,975 INFO L284 CfgBuilder]: Removed 757 assume(true) statements. [2019-11-24 05:00:29,976 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 05:00:29 BoogieIcfgContainer [2019-11-24 05:00:29,976 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-24 05:00:29,978 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-24 05:00:29,978 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-24 05:00:29,981 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-24 05:00:29,981 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 05:00:11" (1/3) ... [2019-11-24 05:00:29,982 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13dd8b31 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 05:00:29, skipping insertion in model container [2019-11-24 05:00:29,982 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 05:00:12" (2/3) ... [2019-11-24 05:00:29,983 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13dd8b31 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 05:00:29, skipping insertion in model container [2019-11-24 05:00:29,983 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 05:00:29" (3/3) ... [2019-11-24 05:00:29,985 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec3_product27.cil.c [2019-11-24 05:00:29,995 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-24 05:00:30,002 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 12 error locations. [2019-11-24 05:00:30,010 INFO L249 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2019-11-24 05:00:30,032 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-24 05:00:30,032 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-24 05:00:30,032 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-24 05:00:30,032 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-24 05:00:30,033 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-24 05:00:30,033 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-24 05:00:30,033 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-24 05:00:30,033 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-24 05:00:30,049 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states. [2019-11-24 05:00:30,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-11-24 05:00:30,056 INFO L402 BasicCegarLoop]: Found error trace [2019-11-24 05:00:30,057 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-11-24 05:00:30,058 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-24 05:00:30,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-24 05:00:30,064 INFO L82 PathProgramCache]: Analyzing trace with hash -386325601, now seen corresponding path program 1 times [2019-11-24 05:00:30,072 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-24 05:00:30,073 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1757289603] [2019-11-24 05:00:30,073 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-24 05:00:30,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-24 05:00:30,465 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 05:00:30,466 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1757289603] [2019-11-24 05:00:30,467 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-24 05:00:30,467 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-24 05:00:30,468 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [398631401] [2019-11-24 05:00:30,473 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-24 05:00:30,473 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-24 05:00:30,487 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-24 05:00:30,487 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-24 05:00:30,490 INFO L87 Difference]: Start difference. First operand 81 states. Second operand 2 states. [2019-11-24 05:00:30,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-24 05:00:30,517 INFO L93 Difference]: Finished difference Result 136 states and 201 transitions. [2019-11-24 05:00:30,518 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-24 05:00:30,519 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2019-11-24 05:00:30,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-24 05:00:30,532 INFO L225 Difference]: With dead ends: 136 [2019-11-24 05:00:30,532 INFO L226 Difference]: Without dead ends: 77 [2019-11-24 05:00:30,536 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-24 05:00:30,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2019-11-24 05:00:30,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2019-11-24 05:00:30,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77 states. [2019-11-24 05:00:30,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 104 transitions. [2019-11-24 05:00:30,606 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 104 transitions. Word has length 8 [2019-11-24 05:00:30,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-24 05:00:30,607 INFO L462 AbstractCegarLoop]: Abstraction has 77 states and 104 transitions. [2019-11-24 05:00:30,607 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-24 05:00:30,607 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 104 transitions. [2019-11-24 05:00:30,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-11-24 05:00:30,608 INFO L402 BasicCegarLoop]: Found error trace [2019-11-24 05:00:30,609 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-24 05:00:30,609 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-24 05:00:30,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-24 05:00:30,609 INFO L82 PathProgramCache]: Analyzing trace with hash 935221527, now seen corresponding path program 1 times [2019-11-24 05:00:30,610 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-24 05:00:30,610 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [677777757] [2019-11-24 05:00:30,610 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-24 05:00:30,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-24 05:00:30,749 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 05:00:30,750 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [677777757] [2019-11-24 05:00:30,750 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-24 05:00:30,750 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-24 05:00:30,751 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [843631083] [2019-11-24 05:00:30,753 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-24 05:00:30,753 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-24 05:00:30,753 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-24 05:00:30,754 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-24 05:00:30,755 INFO L87 Difference]: Start difference. First operand 77 states and 104 transitions. Second operand 3 states. [2019-11-24 05:00:30,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-24 05:00:30,788 INFO L93 Difference]: Finished difference Result 130 states and 162 transitions. [2019-11-24 05:00:30,789 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-24 05:00:30,789 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2019-11-24 05:00:30,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-24 05:00:30,791 INFO L225 Difference]: With dead ends: 130 [2019-11-24 05:00:30,791 INFO L226 Difference]: Without dead ends: 79 [2019-11-24 05:00:30,793 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 05:00:30,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2019-11-24 05:00:30,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 79. [2019-11-24 05:00:30,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79 states. [2019-11-24 05:00:30,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 106 transitions. [2019-11-24 05:00:30,810 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 106 transitions. Word has length 9 [2019-11-24 05:00:30,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-24 05:00:30,810 INFO L462 AbstractCegarLoop]: Abstraction has 79 states and 106 transitions. [2019-11-24 05:00:30,810 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-24 05:00:30,810 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 106 transitions. [2019-11-24 05:00:30,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-11-24 05:00:30,811 INFO L402 BasicCegarLoop]: Found error trace [2019-11-24 05:00:30,811 INFO L410 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-24 05:00:30,812 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-24 05:00:30,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-24 05:00:30,812 INFO L82 PathProgramCache]: Analyzing trace with hash -386267044, now seen corresponding path program 1 times [2019-11-24 05:00:30,812 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-24 05:00:30,813 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [922422647] [2019-11-24 05:00:30,813 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-24 05:00:30,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-24 05:00:31,061 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-24 05:00:31,063 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [922422647] [2019-11-24 05:00:31,064 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [522668178] [2019-11-24 05:00:31,064 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-24 05:00:31,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-24 05:00:31,504 INFO L255 TraceCheckSpWp]: Trace formula consists of 907 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-24 05:00:31,512 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-24 05:00:31,546 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-24 05:00:31,550 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-24 05:00:31,576 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-24 05:00:31,578 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1928429812] [2019-11-24 05:00:31,633 INFO L159 IcfgInterpreter]: Started Sifa with 12 locations of interest [2019-11-24 05:00:31,634 INFO L166 IcfgInterpreter]: Building call graph [2019-11-24 05:00:31,640 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-11-24 05:00:31,649 INFO L176 IcfgInterpreter]: Starting interpretation [2019-11-24 05:00:31,659 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs