/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_product28.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-6598664 [2019-11-24 05:03:38,360 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-24 05:03:38,362 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-24 05:03:38,373 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-24 05:03:38,374 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-24 05:03:38,375 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-24 05:03:38,376 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-24 05:03:38,378 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-24 05:03:38,379 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-24 05:03:38,380 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-24 05:03:38,381 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-24 05:03:38,382 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-24 05:03:38,383 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-24 05:03:38,384 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-24 05:03:38,385 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-24 05:03:38,386 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-24 05:03:38,387 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-24 05:03:38,388 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-24 05:03:38,390 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-24 05:03:38,392 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-24 05:03:38,393 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-24 05:03:38,394 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-24 05:03:38,396 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-24 05:03:38,396 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-24 05:03:38,399 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-11-24 05:03:38,403 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-24 05:03:38,404 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-24 05:03:38,404 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-24 05:03:38,405 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-24 05:03:38,406 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-24 05:03:38,407 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-24 05:03:38,407 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-24 05:03:38,408 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-24 05:03:38,408 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-24 05:03:38,409 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-24 05:03:38,410 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-24 05:03:38,411 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 05:03:38,426 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-24 05:03:38,426 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-24 05:03:38,427 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-24 05:03:38,427 INFO L138 SettingsManager]: * User list type=DISABLED [2019-11-24 05:03:38,428 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-11-24 05:03:38,428 INFO L138 SettingsManager]: * Explicit value domain=true [2019-11-24 05:03:38,428 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-11-24 05:03:38,428 INFO L138 SettingsManager]: * Octagon Domain=false [2019-11-24 05:03:38,428 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-11-24 05:03:38,428 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-11-24 05:03:38,429 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-11-24 05:03:38,429 INFO L138 SettingsManager]: * Interval Domain=false [2019-11-24 05:03:38,429 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-11-24 05:03:38,429 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-11-24 05:03:38,429 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-11-24 05:03:38,430 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-24 05:03:38,430 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-24 05:03:38,431 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-24 05:03:38,431 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-24 05:03:38,431 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-24 05:03:38,431 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-24 05:03:38,431 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-24 05:03:38,431 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-24 05:03:38,432 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-24 05:03:38,432 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-24 05:03:38,432 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-24 05:03:38,432 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-24 05:03:38,433 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-24 05:03:38,433 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-24 05:03:38,433 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-24 05:03:38,433 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-24 05:03:38,433 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-24 05:03:38,433 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-24 05:03:38,434 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-11-24 05:03:38,434 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-24 05:03:38,434 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-24 05:03:38,434 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-24 05:03:38,434 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-11-24 05:03:38,700 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-24 05:03:38,718 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-24 05:03:38,721 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-24 05:03:38,723 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-24 05:03:38,724 INFO L275 PluginConnector]: CDTParser initialized [2019-11-24 05:03:38,724 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec4_product28.cil.c [2019-11-24 05:03:38,788 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f210e8a2f/c8d25d3312004eb2b3fd65463c3e35c7/FLAG5485394a9 [2019-11-24 05:03:39,450 INFO L306 CDTParser]: Found 1 translation units. [2019-11-24 05:03:39,451 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec4_product28.cil.c [2019-11-24 05:03:39,482 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f210e8a2f/c8d25d3312004eb2b3fd65463c3e35c7/FLAG5485394a9 [2019-11-24 05:03:39,618 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f210e8a2f/c8d25d3312004eb2b3fd65463c3e35c7 [2019-11-24 05:03:39,626 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-24 05:03:39,628 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-24 05:03:39,629 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-24 05:03:39,629 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-24 05:03:39,632 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-24 05:03:39,633 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 05:03:39" (1/1) ... [2019-11-24 05:03:39,636 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@abb20bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 05:03:39, skipping insertion in model container [2019-11-24 05:03:39,637 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 05:03:39" (1/1) ... [2019-11-24 05:03:39,644 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-24 05:03:39,720 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-24 05:03:40,534 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-24 05:03:40,548 INFO L203 MainTranslator]: Completed pre-run [2019-11-24 05:03:40,641 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-24 05:03:40,727 INFO L208 MainTranslator]: Completed translation [2019-11-24 05:03:40,727 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 05:03:40 WrapperNode [2019-11-24 05:03:40,728 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-24 05:03:40,729 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-24 05:03:40,729 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-24 05:03:40,729 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-24 05:03:40,738 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 05:03:40" (1/1) ... [2019-11-24 05:03:40,769 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 05:03:40" (1/1) ... [2019-11-24 05:03:40,880 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-24 05:03:40,880 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-24 05:03:40,881 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-24 05:03:40,881 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-24 05:03:40,892 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 05:03:40" (1/1) ... [2019-11-24 05:03:40,892 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 05:03:40" (1/1) ... [2019-11-24 05:03:40,903 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 05:03:40" (1/1) ... [2019-11-24 05:03:40,903 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 05:03:40" (1/1) ... [2019-11-24 05:03:40,953 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 05:03:40" (1/1) ... [2019-11-24 05:03:40,993 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 05:03:40" (1/1) ... [2019-11-24 05:03:41,009 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 05:03:40" (1/1) ... [2019-11-24 05:03:41,036 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-24 05:03:41,037 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-24 05:03:41,037 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-24 05:03:41,038 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-24 05:03:41,039 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 05:03:40" (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 05:03:41,111 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-11-24 05:03:41,113 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-24 05:03:41,114 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-24 05:03:41,114 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-24 05:03:41,114 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-24 05:03:48,378 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-24 05:03:48,379 INFO L284 CfgBuilder]: Removed 291 assume(true) statements. [2019-11-24 05:03:48,381 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 05:03:48 BoogieIcfgContainer [2019-11-24 05:03:48,381 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-24 05:03:48,382 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-24 05:03:48,382 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-24 05:03:48,385 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-24 05:03:48,386 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 05:03:39" (1/3) ... [2019-11-24 05:03:48,387 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a6ae6fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 05:03:48, skipping insertion in model container [2019-11-24 05:03:48,387 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 05:03:40" (2/3) ... [2019-11-24 05:03:48,387 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a6ae6fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 05:03:48, skipping insertion in model container [2019-11-24 05:03:48,390 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 05:03:48" (3/3) ... [2019-11-24 05:03:48,392 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec4_product28.cil.c [2019-11-24 05:03:48,402 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-24 05:03:48,409 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2019-11-24 05:03:48,418 INFO L249 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2019-11-24 05:03:48,441 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-24 05:03:48,441 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-24 05:03:48,441 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-24 05:03:48,441 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-24 05:03:48,441 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-24 05:03:48,441 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-24 05:03:48,442 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-24 05:03:48,442 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-24 05:03:48,454 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states. [2019-11-24 05:03:48,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-11-24 05:03:48,461 INFO L402 BasicCegarLoop]: Found error trace [2019-11-24 05:03:48,462 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-24 05:03:48,462 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-24 05:03:48,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-24 05:03:48,468 INFO L82 PathProgramCache]: Analyzing trace with hash 584500102, now seen corresponding path program 1 times [2019-11-24 05:03:48,475 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-24 05:03:48,475 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1553069945] [2019-11-24 05:03:48,475 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-24 05:03:48,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-24 05:03:48,855 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 05:03:48,855 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1553069945] [2019-11-24 05:03:48,856 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-24 05:03:48,856 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-24 05:03:48,857 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [498206313] [2019-11-24 05:03:48,863 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-24 05:03:48,864 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-24 05:03:48,876 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-24 05:03:48,876 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-24 05:03:48,878 INFO L87 Difference]: Start difference. First operand 40 states. Second operand 2 states. [2019-11-24 05:03:48,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-24 05:03:48,900 INFO L93 Difference]: Finished difference Result 54 states and 87 transitions. [2019-11-24 05:03:48,900 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-24 05:03:48,902 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 7 [2019-11-24 05:03:48,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-24 05:03:48,914 INFO L225 Difference]: With dead ends: 54 [2019-11-24 05:03:48,914 INFO L226 Difference]: Without dead ends: 37 [2019-11-24 05:03:48,917 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 05:03:48,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2019-11-24 05:03:48,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2019-11-24 05:03:48,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2019-11-24 05:03:48,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 60 transitions. [2019-11-24 05:03:48,958 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 60 transitions. Word has length 7 [2019-11-24 05:03:48,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-24 05:03:48,959 INFO L462 AbstractCegarLoop]: Abstraction has 37 states and 60 transitions. [2019-11-24 05:03:48,959 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-24 05:03:48,959 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 60 transitions. [2019-11-24 05:03:48,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-11-24 05:03:48,960 INFO L402 BasicCegarLoop]: Found error trace [2019-11-24 05:03:48,960 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-11-24 05:03:48,961 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-24 05:03:48,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-24 05:03:48,961 INFO L82 PathProgramCache]: Analyzing trace with hash -120085650, now seen corresponding path program 1 times [2019-11-24 05:03:48,961 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-24 05:03:48,962 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [968299955] [2019-11-24 05:03:48,962 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-24 05:03:49,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-24 05:03:49,086 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 05:03:49,086 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [968299955] [2019-11-24 05:03:49,086 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-24 05:03:49,087 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-24 05:03:49,088 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1351660795] [2019-11-24 05:03:49,090 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-24 05:03:49,090 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-24 05:03:49,091 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-24 05:03:49,091 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-24 05:03:49,091 INFO L87 Difference]: Start difference. First operand 37 states and 60 transitions. Second operand 3 states. [2019-11-24 05:03:49,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-24 05:03:49,117 INFO L93 Difference]: Finished difference Result 50 states and 74 transitions. [2019-11-24 05:03:49,118 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-24 05:03:49,118 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2019-11-24 05:03:49,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-24 05:03:49,119 INFO L225 Difference]: With dead ends: 50 [2019-11-24 05:03:49,119 INFO L226 Difference]: Without dead ends: 39 [2019-11-24 05:03:49,121 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 05:03:49,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2019-11-24 05:03:49,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2019-11-24 05:03:49,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2019-11-24 05:03:49,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 62 transitions. [2019-11-24 05:03:49,134 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 62 transitions. Word has length 8 [2019-11-24 05:03:49,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-24 05:03:49,134 INFO L462 AbstractCegarLoop]: Abstraction has 39 states and 62 transitions. [2019-11-24 05:03:49,134 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-24 05:03:49,134 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 62 transitions. [2019-11-24 05:03:49,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-11-24 05:03:49,135 INFO L402 BasicCegarLoop]: Found error trace [2019-11-24 05:03:49,136 INFO L410 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-24 05:03:49,136 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-24 05:03:49,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-24 05:03:49,136 INFO L82 PathProgramCache]: Analyzing trace with hash 1438447429, now seen corresponding path program 1 times [2019-11-24 05:03:49,137 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-24 05:03:49,137 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1388903588] [2019-11-24 05:03:49,137 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-24 05:03:49,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-24 05:03:49,422 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 05:03:49,423 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1388903588] [2019-11-24 05:03:49,423 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-24 05:03:49,423 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-24 05:03:49,424 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [556257350] [2019-11-24 05:03:49,424 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-24 05:03:49,424 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-24 05:03:49,425 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-24 05:03:49,425 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-11-24 05:03:49,425 INFO L87 Difference]: Start difference. First operand 39 states and 62 transitions. Second operand 6 states. [2019-11-24 05:03:49,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-24 05:03:49,682 INFO L93 Difference]: Finished difference Result 41 states and 64 transitions. [2019-11-24 05:03:49,683 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-24 05:03:49,683 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 12 [2019-11-24 05:03:49,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-24 05:03:49,684 INFO L225 Difference]: With dead ends: 41 [2019-11-24 05:03:49,684 INFO L226 Difference]: Without dead ends: 39 [2019-11-24 05:03:49,685 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 05:03:49,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2019-11-24 05:03:49,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 37. [2019-11-24 05:03:49,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2019-11-24 05:03:49,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 60 transitions. [2019-11-24 05:03:49,693 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 60 transitions. Word has length 12 [2019-11-24 05:03:49,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-24 05:03:49,693 INFO L462 AbstractCegarLoop]: Abstraction has 37 states and 60 transitions. [2019-11-24 05:03:49,693 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-24 05:03:49,693 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 60 transitions. [2019-11-24 05:03:49,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-11-24 05:03:49,694 INFO L402 BasicCegarLoop]: Found error trace [2019-11-24 05:03:49,694 INFO L410 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-24 05:03:49,695 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-24 05:03:49,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-24 05:03:49,695 INFO L82 PathProgramCache]: Analyzing trace with hash -1417808419, now seen corresponding path program 1 times [2019-11-24 05:03:49,695 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-24 05:03:49,696 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1119145632] [2019-11-24 05:03:49,696 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-24 05:03:49,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-24 05:03:49,844 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 05:03:49,845 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1119145632] [2019-11-24 05:03:49,845 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-24 05:03:49,845 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-24 05:03:49,846 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1610857382] [2019-11-24 05:03:49,846 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-24 05:03:49,846 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-24 05:03:49,846 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-24 05:03:49,847 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-24 05:03:49,847 INFO L87 Difference]: Start difference. First operand 37 states and 60 transitions. Second operand 4 states. [2019-11-24 05:03:49,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-24 05:03:49,882 INFO L93 Difference]: Finished difference Result 37 states and 60 transitions. [2019-11-24 05:03:49,882 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-24 05:03:49,882 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2019-11-24 05:03:49,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-24 05:03:49,883 INFO L225 Difference]: With dead ends: 37 [2019-11-24 05:03:49,883 INFO L226 Difference]: Without dead ends: 0 [2019-11-24 05:03:49,884 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 05:03:49,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-24 05:03:49,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-24 05:03:49,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-24 05:03:49,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-24 05:03:49,885 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2019-11-24 05:03:49,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-24 05:03:49,885 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-24 05:03:49,885 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-24 05:03:49,885 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-24 05:03:49,885 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-24 05:03:49,890 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-24 05:03:50,093 INFO L440 ceAbstractionStarter]: At program point L1033(lines 1020 1064) the Hoare annotation is: (and (= 1 ~queue_empty~0) (= ~bob~0 1) (= ~__ste_email_isSigned0~0 0)) [2019-11-24 05:03:50,093 INFO L440 ceAbstractionStarter]: At program point L1038(lines 1038 1045) the Hoare annotation is: (and (= 1 ~queue_empty~0) (= ~bob~0 1) (= ~__ste_email_isSigned0~0 0)) [2019-11-24 05:03:50,093 INFO L444 ceAbstractionStarter]: For program point L910(lines 909 1073) no Hoare annotation was computed. [2019-11-24 05:03:50,093 INFO L440 ceAbstractionStarter]: At program point L1047(lines 1034 1063) the Hoare annotation is: (and (= 1 ~queue_empty~0) (= ~bob~0 1) (= ~__ste_email_isSigned0~0 0)) [2019-11-24 05:03:50,094 INFO L444 ceAbstractionStarter]: For program point L917(lines 917 1072) no Hoare annotation was computed. [2019-11-24 05:03:50,094 INFO L440 ceAbstractionStarter]: At program point L1052(lines 1052 1059) the Hoare annotation is: (and (= 1 ~queue_empty~0) (= ~bob~0 1) (= ~__ste_email_isSigned0~0 0)) [2019-11-24 05:03:50,094 INFO L440 ceAbstractionStarter]: At program point L1052-1(lines 909 1073) the Hoare annotation is: (and (= 1 ~queue_empty~0) (= ~bob~0 1) (= ~__ste_email_isSigned0~0 0)) [2019-11-24 05:03:50,094 INFO L440 ceAbstractionStarter]: At program point L921(lines 921 928) the Hoare annotation is: (and (= 1 ~queue_empty~0) (= ~bob~0 1) (= ~__ste_email_isSigned0~0 0)) [2019-11-24 05:03:50,094 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 440) no Hoare annotation was computed. [2019-11-24 05:03:50,095 INFO L440 ceAbstractionStarter]: At program point L2379(lines 2379 2387) the Hoare annotation is: (and (= 1 ~queue_empty~0) (= ULTIMATE.start_bobToRjh_~tmp___1~4 1) (= ULTIMATE.start___utac_acc__SignForward_spec__1_~client 1) (or (= 0 ULTIMATE.start___utac_acc__SignForward_spec__1_~tmp___0~9) (not (= ~__ste_client_privateKey0~0 0)))) [2019-11-24 05:03:50,095 INFO L440 ceAbstractionStarter]: At program point L930(lines 917 1072) the Hoare annotation is: (and (= 1 ~queue_empty~0) (= ~bob~0 1) (= ~__ste_email_isSigned0~0 0)) [2019-11-24 05:03:50,095 INFO L444 ceAbstractionStarter]: For program point L935(lines 935 939) no Hoare annotation was computed. [2019-11-24 05:03:50,095 INFO L440 ceAbstractionStarter]: At program point L941(lines 931 1071) the Hoare annotation is: (and (= 1 ~queue_empty~0) (= ~bob~0 1) (= ~__ste_email_isSigned0~0 0)) [2019-11-24 05:03:50,095 INFO L440 ceAbstractionStarter]: At program point L1074(lines 908 1075) the Hoare annotation is: (and (= 1 ~queue_empty~0) (= ~bob~0 1) (= ~__ste_email_isSigned0~0 0)) [2019-11-24 05:03:50,095 INFO L440 ceAbstractionStarter]: At program point L946(lines 946 953) the Hoare annotation is: (and (= 1 ~queue_empty~0) (= ~bob~0 1) (= ~__ste_email_isSigned0~0 0)) [2019-11-24 05:03:50,096 INFO L440 ceAbstractionStarter]: At program point L955(lines 942 1070) the Hoare annotation is: (and (= 1 ~queue_empty~0) (= ~bob~0 1) (= ~__ste_email_isSigned0~0 0)) [2019-11-24 05:03:50,096 INFO L440 ceAbstractionStarter]: At program point L960(lines 960 967) the Hoare annotation is: (and (= 1 ~queue_empty~0) (= ~bob~0 1) (= ~__ste_email_isSigned0~0 0)) [2019-11-24 05:03:50,096 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 440) no Hoare annotation was computed. [2019-11-24 05:03:50,096 INFO L444 ceAbstractionStarter]: For program point L440(line 440) no Hoare annotation was computed. [2019-11-24 05:03:50,096 INFO L444 ceAbstractionStarter]: For program point L440-1(line 440) no Hoare annotation was computed. [2019-11-24 05:03:50,096 INFO L440 ceAbstractionStarter]: At program point L969(lines 956 1069) the Hoare annotation is: (and (= 1 ~queue_empty~0) (= ~bob~0 1) (= ~__ste_email_isSigned0~0 0)) [2019-11-24 05:03:50,097 INFO L440 ceAbstractionStarter]: At program point L974(lines 974 981) the Hoare annotation is: (and (= 1 ~queue_empty~0) (= ~bob~0 1) (= ~__ste_email_isSigned0~0 0)) [2019-11-24 05:03:50,097 INFO L447 ceAbstractionStarter]: At program point L2435-1(lines 2435 2442) the Hoare annotation is: true [2019-11-24 05:03:50,097 INFO L440 ceAbstractionStarter]: At program point L2435(lines 2435 2442) the Hoare annotation is: (and (= 1 ~queue_empty~0) (= ~__ste_email_isSigned0~0 0)) [2019-11-24 05:03:50,097 INFO L440 ceAbstractionStarter]: At program point L2568(lines 2568 2581) the Hoare annotation is: (and (= 1 ~queue_empty~0) (= ULTIMATE.start___utac_acc__SignForward_spec__1_~client 1) (or (= 0 ULTIMATE.start___utac_acc__SignForward_spec__1_~tmp___0~9) (not (= ~__ste_client_privateKey0~0 0)))) [2019-11-24 05:03:50,097 INFO L440 ceAbstractionStarter]: At program point L2568-2(lines 2568 2581) the Hoare annotation is: false [2019-11-24 05:03:50,098 INFO L440 ceAbstractionStarter]: At program point L2568-1(lines 2559 2584) the Hoare annotation is: (and (= 1 ~queue_empty~0) (= ULTIMATE.start___utac_acc__SignForward_spec__1_~client 1) (or (= 0 ULTIMATE.start___utac_acc__SignForward_spec__1_~tmp___0~9) (not (= ~__ste_client_privateKey0~0 0)))) [2019-11-24 05:03:50,098 INFO L447 ceAbstractionStarter]: At program point L2568-3(lines 2559 2584) the Hoare annotation is: true [2019-11-24 05:03:50,098 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-24 05:03:50,098 INFO L440 ceAbstractionStarter]: At program point L983(lines 970 1068) the Hoare annotation is: (and (= 1 ~queue_empty~0) (= ~bob~0 1) (= ~__ste_email_isSigned0~0 0)) [2019-11-24 05:03:50,098 INFO L444 ceAbstractionStarter]: For program point L2572(lines 2572 2578) no Hoare annotation was computed. [2019-11-24 05:03:50,098 INFO L444 ceAbstractionStarter]: For program point L2572-2(lines 2572 2578) no Hoare annotation was computed. [2019-11-24 05:03:50,099 INFO L444 ceAbstractionStarter]: For program point L988(lines 988 992) no Hoare annotation was computed. [2019-11-24 05:03:50,099 INFO L440 ceAbstractionStarter]: At program point L994(lines 984 1067) the Hoare annotation is: (and (= 1 ~queue_empty~0) (= ~bob~0 1) (= ~__ste_email_isSigned0~0 0)) [2019-11-24 05:03:50,099 INFO L440 ceAbstractionStarter]: At program point L999(lines 999 1006) the Hoare annotation is: (and (= 1 ~queue_empty~0) (= ~bob~0 1) (= ~__ste_email_isSigned0~0 0)) [2019-11-24 05:03:50,099 INFO L440 ceAbstractionStarter]: At program point L1008(lines 995 1066) the Hoare annotation is: (and (= 1 ~queue_empty~0) (= ~bob~0 1) (= ~__ste_email_isSigned0~0 0)) [2019-11-24 05:03:50,099 INFO L447 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-11-24 05:03:50,099 INFO L444 ceAbstractionStarter]: For program point L1013(lines 1013 1017) no Hoare annotation was computed. [2019-11-24 05:03:50,100 INFO L440 ceAbstractionStarter]: At program point L1019(lines 1009 1065) the Hoare annotation is: (and (= 1 ~queue_empty~0) (= ~bob~0 1) (= ~__ste_email_isSigned0~0 0)) [2019-11-24 05:03:50,100 INFO L440 ceAbstractionStarter]: At program point L1024(lines 1024 1031) the Hoare annotation is: (and (= 1 ~queue_empty~0) (= ~bob~0 1) (= ~__ste_email_isSigned0~0 0)) [2019-11-24 05:03:50,125 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.11 05:03:50 BoogieIcfgContainer [2019-11-24 05:03:50,125 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-24 05:03:50,128 INFO L168 Benchmark]: Toolchain (without parser) took 10499.80 ms. Allocated memory was 144.7 MB in the beginning and 415.8 MB in the end (delta: 271.1 MB). Free memory was 99.9 MB in the beginning and 236.2 MB in the end (delta: -136.3 MB). Peak memory consumption was 134.8 MB. Max. memory is 7.1 GB. [2019-11-24 05:03:50,129 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 144.7 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-11-24 05:03:50,133 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1099.38 ms. Allocated memory was 144.7 MB in the beginning and 203.4 MB in the end (delta: 58.7 MB). Free memory was 99.5 MB in the beginning and 140.4 MB in the end (delta: -40.9 MB). Peak memory consumption was 32.1 MB. Max. memory is 7.1 GB. [2019-11-24 05:03:50,134 INFO L168 Benchmark]: Boogie Procedure Inliner took 151.43 ms. Allocated memory is still 203.4 MB. Free memory was 140.4 MB in the beginning and 130.5 MB in the end (delta: 9.9 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. [2019-11-24 05:03:50,135 INFO L168 Benchmark]: Boogie Preprocessor took 156.53 ms. Allocated memory is still 203.4 MB. Free memory was 130.5 MB in the beginning and 122.4 MB in the end (delta: 8.1 MB). Peak memory consumption was 8.1 MB. Max. memory is 7.1 GB. [2019-11-24 05:03:50,136 INFO L168 Benchmark]: RCFGBuilder took 7343.69 ms. Allocated memory was 203.4 MB in the beginning and 350.2 MB in the end (delta: 146.8 MB). Free memory was 122.4 MB in the beginning and 124.5 MB in the end (delta: -2.1 MB). Peak memory consumption was 199.1 MB. Max. memory is 7.1 GB. [2019-11-24 05:03:50,137 INFO L168 Benchmark]: TraceAbstraction took 1743.61 ms. Allocated memory was 350.2 MB in the beginning and 415.8 MB in the end (delta: 65.5 MB). Free memory was 124.5 MB in the beginning and 236.2 MB in the end (delta: -111.7 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-11-24 05:03:50,147 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 144.7 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1099.38 ms. Allocated memory was 144.7 MB in the beginning and 203.4 MB in the end (delta: 58.7 MB). Free memory was 99.5 MB in the beginning and 140.4 MB in the end (delta: -40.9 MB). Peak memory consumption was 32.1 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 151.43 ms. Allocated memory is still 203.4 MB. Free memory was 140.4 MB in the beginning and 130.5 MB in the end (delta: 9.9 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 156.53 ms. Allocated memory is still 203.4 MB. Free memory was 130.5 MB in the beginning and 122.4 MB in the end (delta: 8.1 MB). Peak memory consumption was 8.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 7343.69 ms. Allocated memory was 203.4 MB in the beginning and 350.2 MB in the end (delta: 146.8 MB). Free memory was 122.4 MB in the beginning and 124.5 MB in the end (delta: -2.1 MB). Peak memory consumption was 199.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1743.61 ms. Allocated memory was 350.2 MB in the beginning and 415.8 MB in the end (delta: 65.5 MB). Free memory was 124.5 MB in the beginning and 236.2 MB in the end (delta: -111.7 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 440]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 440]: 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: 2435]: Loop Invariant Derived loop invariant: 1 == queue_empty && __ste_email_isSigned0 == 0 - InvariantResult [Line: 921]: Loop Invariant Derived loop invariant: (1 == queue_empty && bob == 1) && __ste_email_isSigned0 == 0 - InvariantResult [Line: 974]: Loop Invariant Derived loop invariant: (1 == queue_empty && bob == 1) && __ste_email_isSigned0 == 0 - InvariantResult [Line: 1038]: Loop Invariant Derived loop invariant: (1 == queue_empty && bob == 1) && __ste_email_isSigned0 == 0 - InvariantResult [Line: 2435]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 931]: Loop Invariant Derived loop invariant: (1 == queue_empty && bob == 1) && __ste_email_isSigned0 == 0 - InvariantResult [Line: 917]: Loop Invariant Derived loop invariant: (1 == queue_empty && bob == 1) && __ste_email_isSigned0 == 0 - InvariantResult [Line: 984]: Loop Invariant Derived loop invariant: (1 == queue_empty && bob == 1) && __ste_email_isSigned0 == 0 - InvariantResult [Line: 1034]: Loop Invariant Derived loop invariant: (1 == queue_empty && bob == 1) && __ste_email_isSigned0 == 0 - InvariantResult [Line: 970]: Loop Invariant Derived loop invariant: (1 == queue_empty && bob == 1) && __ste_email_isSigned0 == 0 - InvariantResult [Line: 1020]: Loop Invariant Derived loop invariant: (1 == queue_empty && bob == 1) && __ste_email_isSigned0 == 0 - InvariantResult [Line: 956]: Loop Invariant Derived loop invariant: (1 == queue_empty && bob == 1) && __ste_email_isSigned0 == 0 - InvariantResult [Line: 2379]: Loop Invariant Derived loop invariant: ((1 == queue_empty && tmp___1 == 1) && client == 1) && (0 == tmp___0 || !(__ste_client_privateKey0 == 0)) - InvariantResult [Line: 960]: Loop Invariant Derived loop invariant: (1 == queue_empty && bob == 1) && __ste_email_isSigned0 == 0 - InvariantResult [Line: 1024]: 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: 2559]: Loop Invariant Derived loop invariant: (1 == queue_empty && client == 1) && (0 == tmp___0 || !(__ste_client_privateKey0 == 0)) - InvariantResult [Line: 946]: Loop Invariant Derived loop invariant: (1 == queue_empty && bob == 1) && __ste_email_isSigned0 == 0 - InvariantResult [Line: 908]: Loop Invariant Derived loop invariant: (1 == queue_empty && bob == 1) && __ste_email_isSigned0 == 0 - InvariantResult [Line: 2568]: Loop Invariant Derived loop invariant: (1 == queue_empty && client == 1) && (0 == tmp___0 || !(__ste_client_privateKey0 == 0)) - InvariantResult [Line: 999]: Loop Invariant Derived loop invariant: (1 == queue_empty && bob == 1) && __ste_email_isSigned0 == 0 - InvariantResult [Line: 2568]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1052]: Loop Invariant Derived loop invariant: (1 == queue_empty && bob == 1) && __ste_email_isSigned0 == 0 - InvariantResult [Line: 1009]: Loop Invariant Derived loop invariant: (1 == queue_empty && bob == 1) && __ste_email_isSigned0 == 0 - InvariantResult [Line: 909]: Loop Invariant Derived loop invariant: (1 == queue_empty && bob == 1) && __ste_email_isSigned0 == 0 - InvariantResult [Line: 942]: Loop Invariant Derived loop invariant: (1 == queue_empty && bob == 1) && __ste_email_isSigned0 == 0 - InvariantResult [Line: 995]: Loop Invariant Derived loop invariant: (1 == queue_empty && bob == 1) && __ste_email_isSigned0 == 0 - InvariantResult [Line: 2559]: Loop Invariant Derived loop invariant: 1 - 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: 228 SDtfs, 141 SDslu, 205 SDs, 0 SdLazy, 42 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 15 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s 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, 0.4s SatisfiabilityAnalysisTime, 0.4s 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...