/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_product35.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-6598664 [2019-11-24 05:01:53,486 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-24 05:01:53,491 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-24 05:01:53,509 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-24 05:01:53,509 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-24 05:01:53,511 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-24 05:01:53,513 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-24 05:01:53,520 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-24 05:01:53,525 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-24 05:01:53,525 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-24 05:01:53,526 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-24 05:01:53,528 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-24 05:01:53,528 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-24 05:01:53,531 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-24 05:01:53,532 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-24 05:01:53,533 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-24 05:01:53,534 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-24 05:01:53,536 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-24 05:01:53,538 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-24 05:01:53,544 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-24 05:01:53,548 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-24 05:01:53,550 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-24 05:01:53,554 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-24 05:01:53,555 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-24 05:01:53,557 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-11-24 05:01:53,561 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-24 05:01:53,562 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-24 05:01:53,563 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-24 05:01:53,564 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-24 05:01:53,565 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-24 05:01:53,565 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-24 05:01:53,566 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-24 05:01:53,566 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-24 05:01:53,566 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-24 05:01:53,568 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-24 05:01:53,569 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-24 05:01:53,570 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 05:01:53,598 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-24 05:01:53,598 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-24 05:01:53,599 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-24 05:01:53,599 INFO L138 SettingsManager]: * User list type=DISABLED [2019-11-24 05:01:53,600 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-11-24 05:01:53,600 INFO L138 SettingsManager]: * Explicit value domain=true [2019-11-24 05:01:53,600 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-11-24 05:01:53,600 INFO L138 SettingsManager]: * Octagon Domain=false [2019-11-24 05:01:53,600 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-11-24 05:01:53,601 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-11-24 05:01:53,602 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-11-24 05:01:53,602 INFO L138 SettingsManager]: * Interval Domain=false [2019-11-24 05:01:53,602 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-11-24 05:01:53,603 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-11-24 05:01:53,603 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-11-24 05:01:53,604 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-24 05:01:53,604 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-24 05:01:53,604 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-24 05:01:53,605 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-24 05:01:53,605 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-24 05:01:53,605 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-24 05:01:53,605 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-24 05:01:53,605 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-24 05:01:53,606 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-24 05:01:53,606 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-24 05:01:53,606 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-24 05:01:53,606 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-24 05:01:53,606 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-24 05:01:53,608 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-24 05:01:53,608 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-24 05:01:53,608 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-24 05:01:53,608 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-24 05:01:53,609 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-24 05:01:53,609 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-11-24 05:01:53,609 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-24 05:01:53,610 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-24 05:01:53,610 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-24 05:01:53,610 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-11-24 05:01:53,876 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-24 05:01:53,889 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-24 05:01:53,892 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-24 05:01:53,894 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-24 05:01:53,894 INFO L275 PluginConnector]: CDTParser initialized [2019-11-24 05:01:53,895 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec3_product35.cil.c [2019-11-24 05:01:53,969 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/733d9732c/80faa0e8475f4484bf7d5959aa1a92f8/FLAG71b1f0b9d [2019-11-24 05:01:54,564 INFO L306 CDTParser]: Found 1 translation units. [2019-11-24 05:01:54,564 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec3_product35.cil.c [2019-11-24 05:01:54,598 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/733d9732c/80faa0e8475f4484bf7d5959aa1a92f8/FLAG71b1f0b9d [2019-11-24 05:01:54,792 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/733d9732c/80faa0e8475f4484bf7d5959aa1a92f8 [2019-11-24 05:01:54,800 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-24 05:01:54,801 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-24 05:01:54,802 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-24 05:01:54,802 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-24 05:01:54,805 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-24 05:01:54,807 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 05:01:54" (1/1) ... [2019-11-24 05:01:54,810 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2544401b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 05:01:54, skipping insertion in model container [2019-11-24 05:01:54,810 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 05:01:54" (1/1) ... [2019-11-24 05:01:54,818 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-24 05:01:54,889 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-24 05:01:55,691 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-24 05:01:55,709 INFO L203 MainTranslator]: Completed pre-run [2019-11-24 05:01:55,873 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-24 05:01:56,006 INFO L208 MainTranslator]: Completed translation [2019-11-24 05:01:56,006 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 05:01:56 WrapperNode [2019-11-24 05:01:56,007 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-24 05:01:56,007 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-24 05:01:56,008 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-24 05:01:56,008 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-24 05:01:56,018 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 05:01:56" (1/1) ... [2019-11-24 05:01:56,074 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 05:01:56" (1/1) ... [2019-11-24 05:01:56,287 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-24 05:01:56,288 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-24 05:01:56,288 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-24 05:01:56,288 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-24 05:01:56,299 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 05:01:56" (1/1) ... [2019-11-24 05:01:56,300 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 05:01:56" (1/1) ... [2019-11-24 05:01:56,338 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 05:01:56" (1/1) ... [2019-11-24 05:01:56,339 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 05:01:56" (1/1) ... [2019-11-24 05:01:56,444 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 05:01:56" (1/1) ... [2019-11-24 05:01:56,549 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 05:01:56" (1/1) ... [2019-11-24 05:01:56,571 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 05:01:56" (1/1) ... [2019-11-24 05:01:56,592 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-24 05:01:56,593 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-24 05:01:56,593 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-24 05:01:56,593 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-24 05:01:56,594 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 05:01:56" (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 05:01:56,660 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-11-24 05:01:56,661 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-24 05:01:56,661 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-24 05:01:56,661 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-24 05:01:56,661 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-24 05:02:21,385 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-24 05:02:21,385 INFO L284 CfgBuilder]: Removed 985 assume(true) statements. [2019-11-24 05:02:21,387 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 05:02:21 BoogieIcfgContainer [2019-11-24 05:02:21,387 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-24 05:02:21,389 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-24 05:02:21,389 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-24 05:02:21,399 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-24 05:02:21,400 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 05:01:54" (1/3) ... [2019-11-24 05:02:21,401 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3523302b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 05:02:21, skipping insertion in model container [2019-11-24 05:02:21,401 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 05:01:56" (2/3) ... [2019-11-24 05:02:21,401 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3523302b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 05:02:21, skipping insertion in model container [2019-11-24 05:02:21,404 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 05:02:21" (3/3) ... [2019-11-24 05:02:21,406 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec3_product35.cil.c [2019-11-24 05:02:21,415 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-24 05:02:21,423 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 12 error locations. [2019-11-24 05:02:21,431 INFO L249 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2019-11-24 05:02:21,457 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-24 05:02:21,457 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-24 05:02:21,457 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-24 05:02:21,457 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-24 05:02:21,457 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-24 05:02:21,457 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-24 05:02:21,457 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-24 05:02:21,457 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-24 05:02:21,476 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states. [2019-11-24 05:02:21,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-11-24 05:02:21,483 INFO L402 BasicCegarLoop]: Found error trace [2019-11-24 05:02:21,484 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-11-24 05:02:21,485 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 05:02:21,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-24 05:02:21,491 INFO L82 PathProgramCache]: Analyzing trace with hash 228797871, now seen corresponding path program 1 times [2019-11-24 05:02:21,502 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-24 05:02:21,503 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1122630561] [2019-11-24 05:02:21,503 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-24 05:02:21,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-24 05:02:21,953 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 05:02:21,954 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1122630561] [2019-11-24 05:02:21,955 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-24 05:02:21,955 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-24 05:02:21,956 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2137731475] [2019-11-24 05:02:21,961 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-24 05:02:21,962 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-24 05:02:21,977 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-24 05:02:21,978 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-24 05:02:21,980 INFO L87 Difference]: Start difference. First operand 81 states. Second operand 2 states. [2019-11-24 05:02:22,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-24 05:02:22,023 INFO L93 Difference]: Finished difference Result 136 states and 201 transitions. [2019-11-24 05:02:22,024 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-24 05:02:22,026 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2019-11-24 05:02:22,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-24 05:02:22,044 INFO L225 Difference]: With dead ends: 136 [2019-11-24 05:02:22,045 INFO L226 Difference]: Without dead ends: 77 [2019-11-24 05:02:22,050 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 05:02:22,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2019-11-24 05:02:22,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2019-11-24 05:02:22,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77 states. [2019-11-24 05:02:22,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 104 transitions. [2019-11-24 05:02:22,119 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 104 transitions. Word has length 8 [2019-11-24 05:02:22,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-24 05:02:22,120 INFO L462 AbstractCegarLoop]: Abstraction has 77 states and 104 transitions. [2019-11-24 05:02:22,120 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-24 05:02:22,121 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 104 transitions. [2019-11-24 05:02:22,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-11-24 05:02:22,122 INFO L402 BasicCegarLoop]: Found error trace [2019-11-24 05:02:22,122 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-24 05:02:22,122 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 05:02:22,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-24 05:02:22,123 INFO L82 PathProgramCache]: Analyzing trace with hash 1200434716, now seen corresponding path program 1 times [2019-11-24 05:02:22,123 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-24 05:02:22,123 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [144004678] [2019-11-24 05:02:22,124 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-24 05:02:22,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-24 05:02:22,317 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 05:02:22,319 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [144004678] [2019-11-24 05:02:22,320 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-24 05:02:22,320 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-24 05:02:22,320 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [858187055] [2019-11-24 05:02:22,321 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-24 05:02:22,322 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-24 05:02:22,322 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-24 05:02:22,322 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-24 05:02:22,323 INFO L87 Difference]: Start difference. First operand 77 states and 104 transitions. Second operand 3 states. [2019-11-24 05:02:22,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-24 05:02:22,351 INFO L93 Difference]: Finished difference Result 130 states and 162 transitions. [2019-11-24 05:02:22,353 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-24 05:02:22,353 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2019-11-24 05:02:22,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-24 05:02:22,356 INFO L225 Difference]: With dead ends: 130 [2019-11-24 05:02:22,356 INFO L226 Difference]: Without dead ends: 79 [2019-11-24 05:02:22,358 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 05:02:22,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2019-11-24 05:02:22,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 79. [2019-11-24 05:02:22,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79 states. [2019-11-24 05:02:22,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 106 transitions. [2019-11-24 05:02:22,380 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 106 transitions. Word has length 9 [2019-11-24 05:02:22,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-24 05:02:22,380 INFO L462 AbstractCegarLoop]: Abstraction has 79 states and 106 transitions. [2019-11-24 05:02:22,380 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-24 05:02:22,381 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 106 transitions. [2019-11-24 05:02:22,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-11-24 05:02:22,381 INFO L402 BasicCegarLoop]: Found error trace [2019-11-24 05:02:22,384 INFO L410 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-24 05:02:22,384 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 05:02:22,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-24 05:02:22,386 INFO L82 PathProgramCache]: Analyzing trace with hash -2034102999, now seen corresponding path program 1 times [2019-11-24 05:02:22,386 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-24 05:02:22,387 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2147194160] [2019-11-24 05:02:22,387 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-24 05:02:22,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-24 05:02:22,751 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 05:02:22,752 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2147194160] [2019-11-24 05:02:22,754 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1430520772] [2019-11-24 05:02:22,754 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 05:02:23,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-24 05:02:23,378 INFO L255 TraceCheckSpWp]: Trace formula consists of 968 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-24 05:02:23,387 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-24 05:02:23,426 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 05:02:23,426 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-24 05:02:23,460 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 05:02:23,460 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1018966394] [2019-11-24 05:02:23,495 INFO L159 IcfgInterpreter]: Started Sifa with 12 locations of interest [2019-11-24 05:02:23,495 INFO L166 IcfgInterpreter]: Building call graph [2019-11-24 05:02:23,500 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-11-24 05:02:23,507 INFO L176 IcfgInterpreter]: Starting interpretation [2019-11-24 05:02:23,508 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs