/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_spec4_product13.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-6598664 [2019-11-24 05:02:39,484 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-24 05:02:39,487 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-24 05:02:39,499 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-24 05:02:39,499 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-24 05:02:39,501 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-24 05:02:39,502 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-24 05:02:39,505 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-24 05:02:39,512 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-24 05:02:39,513 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-24 05:02:39,514 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-24 05:02:39,518 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-24 05:02:39,518 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-24 05:02:39,519 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-24 05:02:39,522 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-24 05:02:39,524 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-24 05:02:39,526 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-24 05:02:39,527 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-24 05:02:39,532 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-24 05:02:39,534 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-24 05:02:39,537 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-24 05:02:39,538 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-24 05:02:39,540 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-24 05:02:39,541 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-24 05:02:39,546 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-11-24 05:02:39,552 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-24 05:02:39,553 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-24 05:02:39,554 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-24 05:02:39,554 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-24 05:02:39,558 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-24 05:02:39,559 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-24 05:02:39,559 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-24 05:02:39,559 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-24 05:02:39,560 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-24 05:02:39,563 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-24 05:02:39,565 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-24 05:02:39,566 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 05:02:39,600 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-24 05:02:39,602 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-24 05:02:39,603 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-24 05:02:39,603 INFO L138 SettingsManager]: * User list type=DISABLED [2019-11-24 05:02:39,603 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-11-24 05:02:39,603 INFO L138 SettingsManager]: * Explicit value domain=true [2019-11-24 05:02:39,604 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-11-24 05:02:39,604 INFO L138 SettingsManager]: * Octagon Domain=false [2019-11-24 05:02:39,604 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-11-24 05:02:39,604 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-11-24 05:02:39,604 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-11-24 05:02:39,609 INFO L138 SettingsManager]: * Interval Domain=false [2019-11-24 05:02:39,609 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-11-24 05:02:39,609 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-11-24 05:02:39,609 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-11-24 05:02:39,610 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-24 05:02:39,610 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-24 05:02:39,611 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-24 05:02:39,611 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-24 05:02:39,611 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-24 05:02:39,611 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-24 05:02:39,611 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-24 05:02:39,611 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-24 05:02:39,612 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-24 05:02:39,612 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-24 05:02:39,612 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-24 05:02:39,612 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-24 05:02:39,612 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-24 05:02:39,613 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-24 05:02:39,613 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-24 05:02:39,613 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-24 05:02:39,613 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-24 05:02:39,613 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-24 05:02:39,614 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-11-24 05:02:39,614 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-24 05:02:39,614 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-24 05:02:39,614 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-24 05:02:39,614 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-11-24 05:02:39,897 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-24 05:02:39,910 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-24 05:02:39,913 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-24 05:02:39,915 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-24 05:02:39,915 INFO L275 PluginConnector]: CDTParser initialized [2019-11-24 05:02:39,916 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec4_product13.cil.c [2019-11-24 05:02:39,994 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3acf788f4/94ca238f141a4089b937559092df622c/FLAG6343a2ef6 [2019-11-24 05:02:40,591 INFO L306 CDTParser]: Found 1 translation units. [2019-11-24 05:02:40,592 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec4_product13.cil.c [2019-11-24 05:02:40,629 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3acf788f4/94ca238f141a4089b937559092df622c/FLAG6343a2ef6 [2019-11-24 05:02:40,876 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3acf788f4/94ca238f141a4089b937559092df622c [2019-11-24 05:02:40,886 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-24 05:02:40,889 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-24 05:02:40,893 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-24 05:02:40,893 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-24 05:02:40,897 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-24 05:02:40,898 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 05:02:40" (1/1) ... [2019-11-24 05:02:40,901 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@9375a63 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 05:02:40, skipping insertion in model container [2019-11-24 05:02:40,901 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 05:02:40" (1/1) ... [2019-11-24 05:02:40,909 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-24 05:02:40,993 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-24 05:02:41,687 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-24 05:02:41,705 INFO L203 MainTranslator]: Completed pre-run [2019-11-24 05:02:41,896 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-24 05:02:42,018 INFO L208 MainTranslator]: Completed translation [2019-11-24 05:02:42,018 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 05:02:42 WrapperNode [2019-11-24 05:02:42,019 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-24 05:02:42,020 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-24 05:02:42,020 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-24 05:02:42,020 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-24 05:02:42,031 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 05:02:42" (1/1) ... [2019-11-24 05:02:42,085 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 05:02:42" (1/1) ... [2019-11-24 05:02:42,187 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-24 05:02:42,188 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-24 05:02:42,188 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-24 05:02:42,188 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-24 05:02:42,209 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 05:02:42" (1/1) ... [2019-11-24 05:02:42,212 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 05:02:42" (1/1) ... [2019-11-24 05:02:42,222 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 05:02:42" (1/1) ... [2019-11-24 05:02:42,222 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 05:02:42" (1/1) ... [2019-11-24 05:02:42,279 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 05:02:42" (1/1) ... [2019-11-24 05:02:42,322 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 05:02:42" (1/1) ... [2019-11-24 05:02:42,334 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 05:02:42" (1/1) ... [2019-11-24 05:02:42,356 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-24 05:02:42,357 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-24 05:02:42,357 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-24 05:02:42,358 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-24 05:02:42,359 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 05:02:42" (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 05:02:42,441 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-11-24 05:02:42,444 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-24 05:02:42,444 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-24 05:02:42,445 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-24 05:02:42,445 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-24 05:02:48,177 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-24 05:02:48,177 INFO L284 CfgBuilder]: Removed 235 assume(true) statements. [2019-11-24 05:02:48,179 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 05:02:48 BoogieIcfgContainer [2019-11-24 05:02:48,179 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-24 05:02:48,180 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-24 05:02:48,180 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-24 05:02:48,183 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-24 05:02:48,184 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 05:02:40" (1/3) ... [2019-11-24 05:02:48,184 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@375a6b73 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 05:02:48, skipping insertion in model container [2019-11-24 05:02:48,185 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 05:02:42" (2/3) ... [2019-11-24 05:02:48,185 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@375a6b73 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 05:02:48, skipping insertion in model container [2019-11-24 05:02:48,185 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 05:02:48" (3/3) ... [2019-11-24 05:02:48,187 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec4_product13.cil.c [2019-11-24 05:02:48,197 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-24 05:02:48,204 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2019-11-24 05:02:48,212 INFO L249 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2019-11-24 05:02:48,232 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-24 05:02:48,232 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-24 05:02:48,232 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-24 05:02:48,232 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-24 05:02:48,232 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-24 05:02:48,232 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-24 05:02:48,233 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-24 05:02:48,233 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-24 05:02:48,247 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states. [2019-11-24 05:02:48,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-11-24 05:02:48,253 INFO L402 BasicCegarLoop]: Found error trace [2019-11-24 05:02:48,254 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-24 05:02:48,255 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-24 05:02:48,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-24 05:02:48,260 INFO L82 PathProgramCache]: Analyzing trace with hash -606932301, now seen corresponding path program 1 times [2019-11-24 05:02:48,268 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-24 05:02:48,268 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1914153287] [2019-11-24 05:02:48,269 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-24 05:02:48,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-24 05:02:48,646 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 05:02:48,647 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1914153287] [2019-11-24 05:02:48,648 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-24 05:02:48,648 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-24 05:02:48,649 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1128083986] [2019-11-24 05:02:48,654 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-24 05:02:48,654 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-24 05:02:48,667 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-24 05:02:48,668 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-24 05:02:48,670 INFO L87 Difference]: Start difference. First operand 40 states. Second operand 2 states. [2019-11-24 05:02:48,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-24 05:02:48,689 INFO L93 Difference]: Finished difference Result 54 states and 87 transitions. [2019-11-24 05:02:48,689 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-24 05:02:48,691 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 7 [2019-11-24 05:02:48,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-24 05:02:48,703 INFO L225 Difference]: With dead ends: 54 [2019-11-24 05:02:48,703 INFO L226 Difference]: Without dead ends: 37 [2019-11-24 05:02:48,706 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 05:02:48,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2019-11-24 05:02:48,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2019-11-24 05:02:48,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2019-11-24 05:02:48,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 60 transitions. [2019-11-24 05:02:48,746 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 60 transitions. Word has length 7 [2019-11-24 05:02:48,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-24 05:02:48,746 INFO L462 AbstractCegarLoop]: Abstraction has 37 states and 60 transitions. [2019-11-24 05:02:48,747 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-24 05:02:48,747 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 60 transitions. [2019-11-24 05:02:48,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-11-24 05:02:48,748 INFO L402 BasicCegarLoop]: Found error trace [2019-11-24 05:02:48,748 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-11-24 05:02:48,748 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-24 05:02:48,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-24 05:02:48,749 INFO L82 PathProgramCache]: Analyzing trace with hash -965453830, now seen corresponding path program 1 times [2019-11-24 05:02:48,749 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-24 05:02:48,749 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2009769803] [2019-11-24 05:02:48,749 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-24 05:02:48,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-24 05:02:48,923 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 05:02:48,924 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2009769803] [2019-11-24 05:02:48,924 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-24 05:02:48,925 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-24 05:02:48,925 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [194501121] [2019-11-24 05:02:48,929 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-24 05:02:48,929 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-24 05:02:48,930 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-24 05:02:48,930 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-24 05:02:48,930 INFO L87 Difference]: Start difference. First operand 37 states and 60 transitions. Second operand 3 states. [2019-11-24 05:02:48,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-24 05:02:48,951 INFO L93 Difference]: Finished difference Result 50 states and 74 transitions. [2019-11-24 05:02:48,953 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-24 05:02:48,954 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2019-11-24 05:02:48,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-24 05:02:48,955 INFO L225 Difference]: With dead ends: 50 [2019-11-24 05:02:48,955 INFO L226 Difference]: Without dead ends: 39 [2019-11-24 05:02:48,957 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 05:02:48,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2019-11-24 05:02:48,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2019-11-24 05:02:48,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2019-11-24 05:02:48,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 62 transitions. [2019-11-24 05:02:48,972 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 62 transitions. Word has length 8 [2019-11-24 05:02:48,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-24 05:02:48,973 INFO L462 AbstractCegarLoop]: Abstraction has 39 states and 62 transitions. [2019-11-24 05:02:48,973 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-24 05:02:48,973 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 62 transitions. [2019-11-24 05:02:48,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-11-24 05:02:48,974 INFO L402 BasicCegarLoop]: Found error trace [2019-11-24 05:02:48,975 INFO L410 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-24 05:02:48,975 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-24 05:02:48,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-24 05:02:48,976 INFO L82 PathProgramCache]: Analyzing trace with hash -1379514994, now seen corresponding path program 1 times [2019-11-24 05:02:48,977 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-24 05:02:48,977 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1922581306] [2019-11-24 05:02:48,978 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-24 05:02:49,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-24 05:02:49,200 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-24 05:02:49,200 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1922581306] [2019-11-24 05:02:49,201 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-24 05:02:49,201 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-24 05:02:49,202 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [626823111] [2019-11-24 05:02:49,202 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-24 05:02:49,202 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-24 05:02:49,202 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-24 05:02:49,203 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-11-24 05:02:49,203 INFO L87 Difference]: Start difference. First operand 39 states and 62 transitions. Second operand 6 states. [2019-11-24 05:02:49,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-24 05:02:49,396 INFO L93 Difference]: Finished difference Result 41 states and 64 transitions. [2019-11-24 05:02:49,397 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-24 05:02:49,397 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 12 [2019-11-24 05:02:49,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-24 05:02:49,398 INFO L225 Difference]: With dead ends: 41 [2019-11-24 05:02:49,398 INFO L226 Difference]: Without dead ends: 39 [2019-11-24 05:02:49,399 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2019-11-24 05:02:49,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2019-11-24 05:02:49,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 37. [2019-11-24 05:02:49,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2019-11-24 05:02:49,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 60 transitions. [2019-11-24 05:02:49,407 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 60 transitions. Word has length 12 [2019-11-24 05:02:49,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-24 05:02:49,408 INFO L462 AbstractCegarLoop]: Abstraction has 37 states and 60 transitions. [2019-11-24 05:02:49,408 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-24 05:02:49,408 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 60 transitions. [2019-11-24 05:02:49,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-11-24 05:02:49,409 INFO L402 BasicCegarLoop]: Found error trace [2019-11-24 05:02:49,409 INFO L410 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-24 05:02:49,409 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-24 05:02:49,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-24 05:02:49,410 INFO L82 PathProgramCache]: Analyzing trace with hash -99518252, now seen corresponding path program 1 times [2019-11-24 05:02:49,410 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-24 05:02:49,410 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2039474580] [2019-11-24 05:02:49,410 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-24 05:02:49,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-24 05:02:49,614 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-24 05:02:49,614 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2039474580] [2019-11-24 05:02:49,615 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-24 05:02:49,615 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-24 05:02:49,615 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1004296922] [2019-11-24 05:02:49,615 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-24 05:02:49,616 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-24 05:02:49,616 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-24 05:02:49,616 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-24 05:02:49,616 INFO L87 Difference]: Start difference. First operand 37 states and 60 transitions. Second operand 4 states. [2019-11-24 05:02:49,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-24 05:02:49,645 INFO L93 Difference]: Finished difference Result 37 states and 60 transitions. [2019-11-24 05:02:49,645 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-24 05:02:49,645 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2019-11-24 05:02:49,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-24 05:02:49,646 INFO L225 Difference]: With dead ends: 37 [2019-11-24 05:02:49,646 INFO L226 Difference]: Without dead ends: 0 [2019-11-24 05:02:49,646 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-11-24 05:02:49,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-24 05:02:49,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-24 05:02:49,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-24 05:02:49,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-24 05:02:49,647 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2019-11-24 05:02:49,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-24 05:02:49,648 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-24 05:02:49,648 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-24 05:02:49,648 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-24 05:02:49,648 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-24 05:02:49,653 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-24 05:02:49,868 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 1866) no Hoare annotation was computed. [2019-11-24 05:02:49,868 INFO L440 ceAbstractionStarter]: At program point L2020(lines 2010 2066) the Hoare annotation is: (and (= 1 ~queue_empty~0) (= ~bob~0 1) (= ~__ste_email_isSigned0~0 0)) [2019-11-24 05:02:49,869 INFO L440 ceAbstractionStarter]: At program point L1956(lines 1943 2071) the Hoare annotation is: (and (= 1 ~queue_empty~0) (= ~bob~0 1) (= ~__ste_email_isSigned0~0 0)) [2019-11-24 05:02:49,869 INFO L440 ceAbstractionStarter]: At program point L2025(lines 2025 2032) the Hoare annotation is: (and (= 1 ~queue_empty~0) (= ~bob~0 1) (= ~__ste_email_isSigned0~0 0)) [2019-11-24 05:02:49,869 INFO L440 ceAbstractionStarter]: At program point L1961(lines 1961 1968) the Hoare annotation is: (and (= 1 ~queue_empty~0) (= ~bob~0 1) (= ~__ste_email_isSigned0~0 0)) [2019-11-24 05:02:49,869 INFO L440 ceAbstractionStarter]: At program point L2034(lines 2021 2065) the Hoare annotation is: (and (= 1 ~queue_empty~0) (= ~bob~0 1) (= ~__ste_email_isSigned0~0 0)) [2019-11-24 05:02:49,869 INFO L440 ceAbstractionStarter]: At program point L1970(lines 1957 2070) the Hoare annotation is: (and (= 1 ~queue_empty~0) (= ~bob~0 1) (= ~__ste_email_isSigned0~0 0)) [2019-11-24 05:02:49,869 INFO L440 ceAbstractionStarter]: At program point L2039(lines 2039 2046) the Hoare annotation is: (and (= 1 ~queue_empty~0) (= ~bob~0 1) (= ~__ste_email_isSigned0~0 0)) [2019-11-24 05:02:49,869 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-24 05:02:49,870 INFO L440 ceAbstractionStarter]: At program point L1975(lines 1975 1982) the Hoare annotation is: (and (= 1 ~queue_empty~0) (= ~bob~0 1) (= ~__ste_email_isSigned0~0 0)) [2019-11-24 05:02:49,870 INFO L444 ceAbstractionStarter]: For program point L1911(lines 1910 2074) no Hoare annotation was computed. [2019-11-24 05:02:49,870 INFO L440 ceAbstractionStarter]: At program point L63(lines 63 76) the Hoare annotation is: (and (= 1 ~queue_empty~0) (or (not (= ~__ste_client_privateKey0~0 0)) (= 0 ULTIMATE.start___utac_acc__SignForward_spec__1_~tmp___0~0)) (= ULTIMATE.start___utac_acc__SignForward_spec__1_~client 1)) [2019-11-24 05:02:49,870 INFO L440 ceAbstractionStarter]: At program point L63-1(lines 54 79) the Hoare annotation is: (and (= 1 ~queue_empty~0) (or (not (= ~__ste_client_privateKey0~0 0)) (= 0 ULTIMATE.start___utac_acc__SignForward_spec__1_~tmp___0~0)) (= ULTIMATE.start___utac_acc__SignForward_spec__1_~client 1)) [2019-11-24 05:02:49,870 INFO L440 ceAbstractionStarter]: At program point L63-2(lines 63 76) the Hoare annotation is: false [2019-11-24 05:02:49,870 INFO L447 ceAbstractionStarter]: At program point L63-3(lines 54 79) the Hoare annotation is: true [2019-11-24 05:02:49,871 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 1866) no Hoare annotation was computed. [2019-11-24 05:02:49,871 INFO L440 ceAbstractionStarter]: At program point L2048(lines 2035 2064) the Hoare annotation is: (and (= 1 ~queue_empty~0) (= ~bob~0 1) (= ~__ste_email_isSigned0~0 0)) [2019-11-24 05:02:49,871 INFO L444 ceAbstractionStarter]: For program point L67(lines 67 73) no Hoare annotation was computed. [2019-11-24 05:02:49,871 INFO L444 ceAbstractionStarter]: For program point L67-2(lines 67 73) no Hoare annotation was computed. [2019-11-24 05:02:49,871 INFO L440 ceAbstractionStarter]: At program point L1984(lines 1971 2069) the Hoare annotation is: (and (= 1 ~queue_empty~0) (= ~bob~0 1) (= ~__ste_email_isSigned0~0 0)) [2019-11-24 05:02:49,872 INFO L444 ceAbstractionStarter]: For program point L1918(lines 1918 2073) no Hoare annotation was computed. [2019-11-24 05:02:49,872 INFO L440 ceAbstractionStarter]: At program point L2053(lines 2053 2060) the Hoare annotation is: (and (= 1 ~queue_empty~0) (= ~bob~0 1) (= ~__ste_email_isSigned0~0 0)) [2019-11-24 05:02:49,872 INFO L440 ceAbstractionStarter]: At program point L2053-1(lines 1910 2074) the Hoare annotation is: (and (= 1 ~queue_empty~0) (= ~bob~0 1) (= ~__ste_email_isSigned0~0 0)) [2019-11-24 05:02:49,872 INFO L440 ceAbstractionStarter]: At program point L1922(lines 1922 1929) the Hoare annotation is: (and (= 1 ~queue_empty~0) (= ~bob~0 1) (= ~__ste_email_isSigned0~0 0)) [2019-11-24 05:02:49,872 INFO L444 ceAbstractionStarter]: For program point L1989(lines 1989 1993) no Hoare annotation was computed. [2019-11-24 05:02:49,872 INFO L440 ceAbstractionStarter]: At program point L1995(lines 1985 2068) the Hoare annotation is: (and (= 1 ~queue_empty~0) (= ~bob~0 1) (= ~__ste_email_isSigned0~0 0)) [2019-11-24 05:02:49,873 INFO L440 ceAbstractionStarter]: At program point L1931(lines 1918 2073) the Hoare annotation is: (and (= 1 ~queue_empty~0) (= ~bob~0 1) (= ~__ste_email_isSigned0~0 0)) [2019-11-24 05:02:49,873 INFO L444 ceAbstractionStarter]: For program point L1866(line 1866) no Hoare annotation was computed. [2019-11-24 05:02:49,873 INFO L444 ceAbstractionStarter]: For program point L1866-1(line 1866) no Hoare annotation was computed. [2019-11-24 05:02:49,873 INFO L440 ceAbstractionStarter]: At program point L2000(lines 2000 2007) the Hoare annotation is: (and (= 1 ~queue_empty~0) (= ~bob~0 1) (= ~__ste_email_isSigned0~0 0)) [2019-11-24 05:02:49,873 INFO L447 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-11-24 05:02:49,873 INFO L444 ceAbstractionStarter]: For program point L1936(lines 1936 1940) no Hoare annotation was computed. [2019-11-24 05:02:49,874 INFO L440 ceAbstractionStarter]: At program point L1738(lines 1738 1745) the Hoare annotation is: (and (= 1 ~queue_empty~0) (= ~__ste_email_isSigned0~0 0)) [2019-11-24 05:02:49,874 INFO L447 ceAbstractionStarter]: At program point L1738-1(lines 1738 1745) the Hoare annotation is: true [2019-11-24 05:02:49,874 INFO L440 ceAbstractionStarter]: At program point L1942(lines 1932 2072) the Hoare annotation is: (and (= 1 ~queue_empty~0) (= ~bob~0 1) (= ~__ste_email_isSigned0~0 0)) [2019-11-24 05:02:49,874 INFO L440 ceAbstractionStarter]: At program point L2075(lines 1909 2076) the Hoare annotation is: (and (= 1 ~queue_empty~0) (= ~bob~0 1) (= ~__ste_email_isSigned0~0 0)) [2019-11-24 05:02:49,874 INFO L440 ceAbstractionStarter]: At program point L2009(lines 1996 2067) the Hoare annotation is: (and (= 1 ~queue_empty~0) (= ~bob~0 1) (= ~__ste_email_isSigned0~0 0)) [2019-11-24 05:02:49,874 INFO L440 ceAbstractionStarter]: At program point L1682(lines 1682 1690) the Hoare annotation is: (and (= 1 ~queue_empty~0) (<= 1 ULTIMATE.start_bobToRjh_~tmp___1~0) (or (not (= ~__ste_client_privateKey0~0 0)) (= 0 ULTIMATE.start___utac_acc__SignForward_spec__1_~tmp___0~0)) (= ULTIMATE.start___utac_acc__SignForward_spec__1_~client 1)) [2019-11-24 05:02:49,875 INFO L440 ceAbstractionStarter]: At program point L1947(lines 1947 1954) the Hoare annotation is: (and (= 1 ~queue_empty~0) (= ~bob~0 1) (= ~__ste_email_isSigned0~0 0)) [2019-11-24 05:02:49,875 INFO L444 ceAbstractionStarter]: For program point L2014(lines 2014 2018) no Hoare annotation was computed. [2019-11-24 05:02:49,899 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.11 05:02:49 BoogieIcfgContainer [2019-11-24 05:02:49,899 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-24 05:02:49,902 INFO L168 Benchmark]: Toolchain (without parser) took 9012.81 ms. Allocated memory was 145.8 MB in the beginning and 341.3 MB in the end (delta: 195.6 MB). Free memory was 99.3 MB in the beginning and 243.3 MB in the end (delta: -143.9 MB). Peak memory consumption was 51.6 MB. Max. memory is 7.1 GB. [2019-11-24 05:02:49,903 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 145.8 MB. Free memory was 120.8 MB in the beginning and 120.6 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-11-24 05:02:49,904 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1126.55 ms. Allocated memory was 145.8 MB in the beginning and 204.5 MB in the end (delta: 58.7 MB). Free memory was 99.1 MB in the beginning and 142.2 MB in the end (delta: -43.1 MB). Peak memory consumption was 27.6 MB. Max. memory is 7.1 GB. [2019-11-24 05:02:49,905 INFO L168 Benchmark]: Boogie Procedure Inliner took 167.57 ms. Allocated memory is still 204.5 MB. Free memory was 142.2 MB in the beginning and 133.9 MB in the end (delta: 8.2 MB). Peak memory consumption was 8.2 MB. Max. memory is 7.1 GB. [2019-11-24 05:02:49,906 INFO L168 Benchmark]: Boogie Preprocessor took 169.04 ms. Allocated memory is still 204.5 MB. Free memory was 133.9 MB in the beginning and 127.7 MB in the end (delta: 6.2 MB). Peak memory consumption was 6.2 MB. Max. memory is 7.1 GB. [2019-11-24 05:02:49,907 INFO L168 Benchmark]: RCFGBuilder took 5821.95 ms. Allocated memory was 204.5 MB in the beginning and 338.7 MB in the end (delta: 134.2 MB). Free memory was 127.7 MB in the beginning and 184.9 MB in the end (delta: -57.2 MB). Peak memory consumption was 141.8 MB. Max. memory is 7.1 GB. [2019-11-24 05:02:49,908 INFO L168 Benchmark]: TraceAbstraction took 1719.41 ms. Allocated memory was 338.7 MB in the beginning and 341.3 MB in the end (delta: 2.6 MB). Free memory was 184.9 MB in the beginning and 243.3 MB in the end (delta: -58.4 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-11-24 05:02:49,913 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 145.8 MB. Free memory was 120.8 MB in the beginning and 120.6 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1126.55 ms. Allocated memory was 145.8 MB in the beginning and 204.5 MB in the end (delta: 58.7 MB). Free memory was 99.1 MB in the beginning and 142.2 MB in the end (delta: -43.1 MB). Peak memory consumption was 27.6 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 167.57 ms. Allocated memory is still 204.5 MB. Free memory was 142.2 MB in the beginning and 133.9 MB in the end (delta: 8.2 MB). Peak memory consumption was 8.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 169.04 ms. Allocated memory is still 204.5 MB. Free memory was 133.9 MB in the beginning and 127.7 MB in the end (delta: 6.2 MB). Peak memory consumption was 6.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 5821.95 ms. Allocated memory was 204.5 MB in the beginning and 338.7 MB in the end (delta: 134.2 MB). Free memory was 127.7 MB in the beginning and 184.9 MB in the end (delta: -57.2 MB). Peak memory consumption was 141.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1719.41 ms. Allocated memory was 338.7 MB in the beginning and 341.3 MB in the end (delta: 2.6 MB). Free memory was 184.9 MB in the beginning and 243.3 MB in the end (delta: -58.4 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 1866]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 1866]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - InvariantResult [Line: 1943]: Loop Invariant Derived loop invariant: (1 == queue_empty && bob == 1) && __ste_email_isSigned0 == 0 - InvariantResult [Line: 2010]: Loop Invariant Derived loop invariant: (1 == queue_empty && bob == 1) && __ste_email_isSigned0 == 0 - InvariantResult [Line: 1910]: Loop Invariant Derived loop invariant: (1 == queue_empty && bob == 1) && __ste_email_isSigned0 == 0 - InvariantResult [Line: 1996]: Loop Invariant Derived loop invariant: (1 == queue_empty && bob == 1) && __ste_email_isSigned0 == 0 - InvariantResult [Line: 1738]: Loop Invariant Derived loop invariant: 1 == queue_empty && __ste_email_isSigned0 == 0 - InvariantResult [Line: 63]: Loop Invariant Derived loop invariant: (1 == queue_empty && (!(__ste_client_privateKey0 == 0) || 0 == tmp___0)) && client == 1 - InvariantResult [Line: 1682]: Loop Invariant Derived loop invariant: ((1 == queue_empty && 1 <= tmp___1) && (!(__ste_client_privateKey0 == 0) || 0 == tmp___0)) && client == 1 - InvariantResult [Line: 1909]: Loop Invariant Derived loop invariant: (1 == queue_empty && bob == 1) && __ste_email_isSigned0 == 0 - InvariantResult [Line: 1947]: Loop Invariant Derived loop invariant: (1 == queue_empty && bob == 1) && __ste_email_isSigned0 == 0 - InvariantResult [Line: 2000]: Loop Invariant Derived loop invariant: (1 == queue_empty && bob == 1) && __ste_email_isSigned0 == 0 - InvariantResult [Line: 2053]: Loop Invariant Derived loop invariant: (1 == queue_empty && bob == 1) && __ste_email_isSigned0 == 0 - InvariantResult [Line: 1922]: Loop Invariant Derived loop invariant: (1 == queue_empty && bob == 1) && __ste_email_isSigned0 == 0 - InvariantResult [Line: 1975]: Loop Invariant Derived loop invariant: (1 == queue_empty && bob == 1) && __ste_email_isSigned0 == 0 - InvariantResult [Line: 2039]: Loop Invariant Derived loop invariant: (1 == queue_empty && bob == 1) && __ste_email_isSigned0 == 0 - InvariantResult [Line: 54]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 1932]: Loop Invariant Derived loop invariant: (1 == queue_empty && bob == 1) && __ste_email_isSigned0 == 0 - InvariantResult [Line: 1918]: Loop Invariant Derived loop invariant: (1 == queue_empty && bob == 1) && __ste_email_isSigned0 == 0 - InvariantResult [Line: 1985]: Loop Invariant Derived loop invariant: (1 == queue_empty && bob == 1) && __ste_email_isSigned0 == 0 - InvariantResult [Line: 63]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 54]: Loop Invariant Derived loop invariant: (1 == queue_empty && (!(__ste_client_privateKey0 == 0) || 0 == tmp___0)) && client == 1 - InvariantResult [Line: 1971]: Loop Invariant Derived loop invariant: (1 == queue_empty && bob == 1) && __ste_email_isSigned0 == 0 - InvariantResult [Line: 2035]: Loop Invariant Derived loop invariant: (1 == queue_empty && bob == 1) && __ste_email_isSigned0 == 0 - InvariantResult [Line: -1]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 1738]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 1961]: Loop Invariant Derived loop invariant: (1 == queue_empty && bob == 1) && __ste_email_isSigned0 == 0 - InvariantResult [Line: 2025]: Loop Invariant Derived loop invariant: (1 == queue_empty && bob == 1) && __ste_email_isSigned0 == 0 - InvariantResult [Line: 1957]: Loop Invariant Derived loop invariant: (1 == queue_empty && bob == 1) && __ste_email_isSigned0 == 0 - InvariantResult [Line: 2021]: Loop Invariant Derived loop invariant: (1 == queue_empty && bob == 1) && __ste_email_isSigned0 == 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 40 locations, 2 error locations. Result: SAFE, OverallTime: 1.6s, OverallIterations: 4, TraceHistogramMax: 2, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, HoareTripleCheckerStatistics: 230 SDtfs, 141 SDslu, 206 SDs, 0 SdLazy, 39 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 15 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=40occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 28 LocationsWithAnnotation, 28 PreInvPairs, 35 NumberOfFragments, 259 HoareAnnotationTreeSize, 28 FomulaSimplifications, 50 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 28 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 42 NumberOfCodeBlocks, 42 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 38 ConstructedInterpolants, 0 QuantifiedInterpolants, 1376 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 4/4 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...