/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/ssh-simplified/s3_srvr_2.cil-2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-6598664 [2019-11-24 06:03:28,172 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-24 06:03:28,174 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-24 06:03:28,186 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-24 06:03:28,186 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-24 06:03:28,187 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-24 06:03:28,189 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-24 06:03:28,190 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-24 06:03:28,192 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-24 06:03:28,193 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-24 06:03:28,194 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-24 06:03:28,195 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-24 06:03:28,195 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-24 06:03:28,196 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-24 06:03:28,197 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-24 06:03:28,198 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-24 06:03:28,199 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-24 06:03:28,200 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-24 06:03:28,202 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-24 06:03:28,204 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-24 06:03:28,205 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-24 06:03:28,206 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-24 06:03:28,207 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-24 06:03:28,208 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-24 06:03:28,210 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-24 06:03:28,211 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-24 06:03:28,211 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-24 06:03:28,212 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-24 06:03:28,212 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-24 06:03:28,213 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-24 06:03:28,213 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-24 06:03:28,214 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-24 06:03:28,215 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-24 06:03:28,216 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-24 06:03:28,217 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-24 06:03:28,217 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-24 06:03:28,217 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-24 06:03:28,218 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-24 06:03:28,218 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-24 06:03:28,219 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-24 06:03:28,219 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-24 06:03:28,220 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 06:03:28,235 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-24 06:03:28,236 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-24 06:03:28,237 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-24 06:03:28,237 INFO L138 SettingsManager]: * User list type=DISABLED [2019-11-24 06:03:28,237 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-11-24 06:03:28,237 INFO L138 SettingsManager]: * Explicit value domain=true [2019-11-24 06:03:28,237 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-11-24 06:03:28,238 INFO L138 SettingsManager]: * Octagon Domain=false [2019-11-24 06:03:28,238 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-11-24 06:03:28,238 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-11-24 06:03:28,238 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-11-24 06:03:28,238 INFO L138 SettingsManager]: * Interval Domain=false [2019-11-24 06:03:28,239 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-11-24 06:03:28,239 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-11-24 06:03:28,239 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-11-24 06:03:28,240 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-24 06:03:28,240 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-24 06:03:28,240 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-24 06:03:28,240 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-24 06:03:28,241 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-24 06:03:28,241 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-24 06:03:28,241 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-24 06:03:28,241 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-24 06:03:28,241 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-24 06:03:28,241 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-24 06:03:28,242 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-24 06:03:28,242 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-24 06:03:28,242 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-24 06:03:28,242 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-24 06:03:28,242 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-24 06:03:28,243 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-24 06:03:28,243 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-24 06:03:28,243 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-24 06:03:28,243 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-11-24 06:03:28,243 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-24 06:03:28,244 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-24 06:03:28,244 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-24 06:03:28,244 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-11-24 06:03:28,520 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-24 06:03:28,543 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-24 06:03:28,547 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-24 06:03:28,548 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-24 06:03:28,548 INFO L275 PluginConnector]: CDTParser initialized [2019-11-24 06:03:28,549 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ssh-simplified/s3_srvr_2.cil-2.c [2019-11-24 06:03:28,610 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f0a625a18/5feeecb71a074c0c95806ac0af1ead32/FLAGe59fdc9ff [2019-11-24 06:03:29,102 INFO L306 CDTParser]: Found 1 translation units. [2019-11-24 06:03:29,103 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ssh-simplified/s3_srvr_2.cil-2.c [2019-11-24 06:03:29,122 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f0a625a18/5feeecb71a074c0c95806ac0af1ead32/FLAGe59fdc9ff [2019-11-24 06:03:29,443 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f0a625a18/5feeecb71a074c0c95806ac0af1ead32 [2019-11-24 06:03:29,454 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-24 06:03:29,455 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-24 06:03:29,456 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-24 06:03:29,457 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-24 06:03:29,460 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-24 06:03:29,461 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 06:03:29" (1/1) ... [2019-11-24 06:03:29,464 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a5dbcfd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:03:29, skipping insertion in model container [2019-11-24 06:03:29,464 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 06:03:29" (1/1) ... [2019-11-24 06:03:29,472 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-24 06:03:29,529 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-24 06:03:29,805 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-24 06:03:29,812 INFO L203 MainTranslator]: Completed pre-run [2019-11-24 06:03:29,991 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-24 06:03:30,012 INFO L208 MainTranslator]: Completed translation [2019-11-24 06:03:30,012 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:03:30 WrapperNode [2019-11-24 06:03:30,013 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-24 06:03:30,013 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-24 06:03:30,013 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-24 06:03:30,014 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-24 06:03:30,021 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:03:30" (1/1) ... [2019-11-24 06:03:30,037 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:03:30" (1/1) ... [2019-11-24 06:03:30,107 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-24 06:03:30,108 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-24 06:03:30,108 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-24 06:03:30,108 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-24 06:03:30,116 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:03:30" (1/1) ... [2019-11-24 06:03:30,117 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:03:30" (1/1) ... [2019-11-24 06:03:30,120 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:03:30" (1/1) ... [2019-11-24 06:03:30,120 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:03:30" (1/1) ... [2019-11-24 06:03:30,128 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:03:30" (1/1) ... [2019-11-24 06:03:30,138 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:03:30" (1/1) ... [2019-11-24 06:03:30,141 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:03:30" (1/1) ... [2019-11-24 06:03:30,145 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-24 06:03:30,146 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-24 06:03:30,146 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-24 06:03:30,146 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-24 06:03:30,147 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:03:30" (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 06:03:30,216 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-24 06:03:30,216 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-24 06:03:30,379 WARN L735 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-11-24 06:03:31,033 INFO L688 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##90: assume false; [2019-11-24 06:03:31,033 INFO L688 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##91: assume !false; [2019-11-24 06:03:31,336 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-24 06:03:31,336 INFO L284 CfgBuilder]: Removed 7 assume(true) statements. [2019-11-24 06:03:31,338 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 06:03:31 BoogieIcfgContainer [2019-11-24 06:03:31,338 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-24 06:03:31,339 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-24 06:03:31,339 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-24 06:03:31,342 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-24 06:03:31,343 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 06:03:29" (1/3) ... [2019-11-24 06:03:31,344 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@560ed062 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 06:03:31, skipping insertion in model container [2019-11-24 06:03:31,344 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:03:30" (2/3) ... [2019-11-24 06:03:31,344 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@560ed062 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 06:03:31, skipping insertion in model container [2019-11-24 06:03:31,344 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 06:03:31" (3/3) ... [2019-11-24 06:03:31,346 INFO L109 eAbstractionObserver]: Analyzing ICFG s3_srvr_2.cil-2.c [2019-11-24 06:03:31,356 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-24 06:03:31,364 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-24 06:03:31,376 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-24 06:03:31,404 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-24 06:03:31,404 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-24 06:03:31,404 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-24 06:03:31,404 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-24 06:03:31,404 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-24 06:03:31,405 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-24 06:03:31,405 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-24 06:03:31,405 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-24 06:03:31,424 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states. [2019-11-24 06:03:31,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2019-11-24 06:03:31,433 INFO L402 BasicCegarLoop]: Found error trace [2019-11-24 06:03:31,434 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-24 06:03:31,435 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-24 06:03:31,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-24 06:03:31,441 INFO L82 PathProgramCache]: Analyzing trace with hash -2083977910, now seen corresponding path program 1 times [2019-11-24 06:03:31,451 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-24 06:03:31,452 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1223288468] [2019-11-24 06:03:31,452 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-24 06:03:31,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-24 06:03:31,669 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 06:03:31,669 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1223288468] [2019-11-24 06:03:31,670 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-24 06:03:31,671 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-24 06:03:31,673 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [954448217] [2019-11-24 06:03:31,678 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-24 06:03:31,678 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-24 06:03:31,696 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-24 06:03:31,697 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-24 06:03:31,699 INFO L87 Difference]: Start difference. First operand 106 states. Second operand 3 states. [2019-11-24 06:03:31,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-24 06:03:31,986 INFO L93 Difference]: Finished difference Result 231 states and 400 transitions. [2019-11-24 06:03:31,987 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-24 06:03:31,988 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 39 [2019-11-24 06:03:31,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-24 06:03:32,002 INFO L225 Difference]: With dead ends: 231 [2019-11-24 06:03:32,002 INFO L226 Difference]: Without dead ends: 121 [2019-11-24 06:03:32,006 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 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 06:03:32,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2019-11-24 06:03:32,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 119. [2019-11-24 06:03:32,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 119 states. [2019-11-24 06:03:32,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 174 transitions. [2019-11-24 06:03:32,073 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 174 transitions. Word has length 39 [2019-11-24 06:03:32,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-24 06:03:32,074 INFO L462 AbstractCegarLoop]: Abstraction has 119 states and 174 transitions. [2019-11-24 06:03:32,075 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-24 06:03:32,075 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 174 transitions. [2019-11-24 06:03:32,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2019-11-24 06:03:32,079 INFO L402 BasicCegarLoop]: Found error trace [2019-11-24 06:03:32,080 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-24 06:03:32,080 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-24 06:03:32,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-24 06:03:32,080 INFO L82 PathProgramCache]: Analyzing trace with hash 1998750293, now seen corresponding path program 1 times [2019-11-24 06:03:32,081 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-24 06:03:32,081 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1101644300] [2019-11-24 06:03:32,081 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-24 06:03:32,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-24 06:03:32,187 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-24 06:03:32,187 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1101644300] [2019-11-24 06:03:32,188 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-24 06:03:32,188 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-24 06:03:32,188 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1398540748] [2019-11-24 06:03:32,190 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-24 06:03:32,191 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-24 06:03:32,191 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-24 06:03:32,191 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-24 06:03:32,191 INFO L87 Difference]: Start difference. First operand 119 states and 174 transitions. Second operand 3 states. [2019-11-24 06:03:32,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-24 06:03:32,371 INFO L93 Difference]: Finished difference Result 257 states and 382 transitions. [2019-11-24 06:03:32,371 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-24 06:03:32,371 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 53 [2019-11-24 06:03:32,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-24 06:03:32,373 INFO L225 Difference]: With dead ends: 257 [2019-11-24 06:03:32,375 INFO L226 Difference]: Without dead ends: 140 [2019-11-24 06:03:32,377 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 06:03:32,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2019-11-24 06:03:32,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 138. [2019-11-24 06:03:32,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 138 states. [2019-11-24 06:03:32,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 196 transitions. [2019-11-24 06:03:32,400 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 196 transitions. Word has length 53 [2019-11-24 06:03:32,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-24 06:03:32,401 INFO L462 AbstractCegarLoop]: Abstraction has 138 states and 196 transitions. [2019-11-24 06:03:32,401 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-24 06:03:32,401 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 196 transitions. [2019-11-24 06:03:32,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2019-11-24 06:03:32,406 INFO L402 BasicCegarLoop]: Found error trace [2019-11-24 06:03:32,406 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-24 06:03:32,407 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-24 06:03:32,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-24 06:03:32,408 INFO L82 PathProgramCache]: Analyzing trace with hash -1207665146, now seen corresponding path program 1 times [2019-11-24 06:03:32,408 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-24 06:03:32,410 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1763648026] [2019-11-24 06:03:32,410 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-24 06:03:32,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-24 06:03:32,599 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2019-11-24 06:03:32,600 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1763648026] [2019-11-24 06:03:32,600 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-24 06:03:32,601 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-24 06:03:32,601 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1538504692] [2019-11-24 06:03:32,602 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-24 06:03:32,602 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-24 06:03:32,603 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-24 06:03:32,604 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-24 06:03:32,604 INFO L87 Difference]: Start difference. First operand 138 states and 196 transitions. Second operand 4 states. [2019-11-24 06:03:32,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-24 06:03:32,864 INFO L93 Difference]: Finished difference Result 319 states and 470 transitions. [2019-11-24 06:03:32,866 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-24 06:03:32,866 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 70 [2019-11-24 06:03:32,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-24 06:03:32,868 INFO L225 Difference]: With dead ends: 319 [2019-11-24 06:03:32,868 INFO L226 Difference]: Without dead ends: 183 [2019-11-24 06:03:32,870 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-24 06:03:32,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2019-11-24 06:03:32,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 176. [2019-11-24 06:03:32,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 176 states. [2019-11-24 06:03:32,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 238 transitions. [2019-11-24 06:03:32,882 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 238 transitions. Word has length 70 [2019-11-24 06:03:32,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-24 06:03:32,882 INFO L462 AbstractCegarLoop]: Abstraction has 176 states and 238 transitions. [2019-11-24 06:03:32,883 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-24 06:03:32,883 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 238 transitions. [2019-11-24 06:03:32,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2019-11-24 06:03:32,885 INFO L402 BasicCegarLoop]: Found error trace [2019-11-24 06:03:32,885 INFO L410 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-24 06:03:32,885 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-24 06:03:32,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-24 06:03:32,886 INFO L82 PathProgramCache]: Analyzing trace with hash -460895293, now seen corresponding path program 1 times [2019-11-24 06:03:32,886 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-24 06:03:32,886 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [88252184] [2019-11-24 06:03:32,887 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-24 06:03:32,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-24 06:03:32,957 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2019-11-24 06:03:32,957 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [88252184] [2019-11-24 06:03:32,958 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-24 06:03:32,958 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-24 06:03:32,958 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1424392180] [2019-11-24 06:03:32,959 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-24 06:03:32,959 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-24 06:03:32,959 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-24 06:03:32,959 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-24 06:03:32,960 INFO L87 Difference]: Start difference. First operand 176 states and 238 transitions. Second operand 3 states. [2019-11-24 06:03:33,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-24 06:03:33,109 INFO L93 Difference]: Finished difference Result 383 states and 532 transitions. [2019-11-24 06:03:33,110 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-24 06:03:33,110 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 90 [2019-11-24 06:03:33,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-24 06:03:33,113 INFO L225 Difference]: With dead ends: 383 [2019-11-24 06:03:33,113 INFO L226 Difference]: Without dead ends: 209 [2019-11-24 06:03:33,115 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 06:03:33,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states. [2019-11-24 06:03:33,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 199. [2019-11-24 06:03:33,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 199 states. [2019-11-24 06:03:33,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 264 transitions. [2019-11-24 06:03:33,138 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 264 transitions. Word has length 90 [2019-11-24 06:03:33,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-24 06:03:33,138 INFO L462 AbstractCegarLoop]: Abstraction has 199 states and 264 transitions. [2019-11-24 06:03:33,138 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-24 06:03:33,139 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 264 transitions. [2019-11-24 06:03:33,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2019-11-24 06:03:33,145 INFO L402 BasicCegarLoop]: Found error trace [2019-11-24 06:03:33,145 INFO L410 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-24 06:03:33,145 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-24 06:03:33,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-24 06:03:33,145 INFO L82 PathProgramCache]: Analyzing trace with hash 601951521, now seen corresponding path program 1 times [2019-11-24 06:03:33,146 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-24 06:03:33,146 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1151879040] [2019-11-24 06:03:33,146 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-24 06:03:33,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-24 06:03:33,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-24 06:03:33,328 INFO L174 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2019-11-24 06:03:33,329 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-24 06:03:33,416 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.11 06:03:33 BoogieIcfgContainer [2019-11-24 06:03:33,416 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-24 06:03:33,419 INFO L168 Benchmark]: Toolchain (without parser) took 3962.50 ms. Allocated memory was 145.8 MB in the beginning and 247.5 MB in the end (delta: 101.7 MB). Free memory was 102.8 MB in the beginning and 140.3 MB in the end (delta: -37.6 MB). Peak memory consumption was 64.2 MB. Max. memory is 7.1 GB. [2019-11-24 06:03:33,419 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 145.8 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-11-24 06:03:33,421 INFO L168 Benchmark]: CACSL2BoogieTranslator took 556.52 ms. Allocated memory was 145.8 MB in the beginning and 202.4 MB in the end (delta: 56.6 MB). Free memory was 102.6 MB in the beginning and 178.1 MB in the end (delta: -75.5 MB). Peak memory consumption was 23.2 MB. Max. memory is 7.1 GB. [2019-11-24 06:03:33,421 INFO L168 Benchmark]: Boogie Procedure Inliner took 94.31 ms. Allocated memory is still 202.4 MB. Free memory was 178.1 MB in the beginning and 174.4 MB in the end (delta: 3.7 MB). Peak memory consumption was 3.7 MB. Max. memory is 7.1 GB. [2019-11-24 06:03:33,422 INFO L168 Benchmark]: Boogie Preprocessor took 37.64 ms. Allocated memory is still 202.4 MB. Free memory was 174.4 MB in the beginning and 172.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. [2019-11-24 06:03:33,423 INFO L168 Benchmark]: RCFGBuilder took 1192.24 ms. Allocated memory was 202.4 MB in the beginning and 236.5 MB in the end (delta: 34.1 MB). Free memory was 172.3 MB in the beginning and 205.1 MB in the end (delta: -32.8 MB). Peak memory consumption was 88.4 MB. Max. memory is 7.1 GB. [2019-11-24 06:03:33,424 INFO L168 Benchmark]: TraceAbstraction took 2076.84 ms. Allocated memory was 236.5 MB in the beginning and 247.5 MB in the end (delta: 11.0 MB). Free memory was 205.1 MB in the beginning and 140.3 MB in the end (delta: 64.8 MB). Peak memory consumption was 75.8 MB. Max. memory is 7.1 GB. [2019-11-24 06:03:33,431 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 145.8 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 556.52 ms. Allocated memory was 145.8 MB in the beginning and 202.4 MB in the end (delta: 56.6 MB). Free memory was 102.6 MB in the beginning and 178.1 MB in the end (delta: -75.5 MB). Peak memory consumption was 23.2 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 94.31 ms. Allocated memory is still 202.4 MB. Free memory was 178.1 MB in the beginning and 174.4 MB in the end (delta: 3.7 MB). Peak memory consumption was 3.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 37.64 ms. Allocated memory is still 202.4 MB. Free memory was 174.4 MB in the beginning and 172.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1192.24 ms. Allocated memory was 202.4 MB in the beginning and 236.5 MB in the end (delta: 34.1 MB). Free memory was 172.3 MB in the beginning and 205.1 MB in the end (delta: -32.8 MB). Peak memory consumption was 88.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2076.84 ms. Allocated memory was 236.5 MB in the beginning and 247.5 MB in the end (delta: 11.0 MB). Free memory was 205.1 MB in the beginning and 140.3 MB in the end (delta: 64.8 MB). Peak memory consumption was 75.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 607]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L612] int s ; [L613] int tmp ; [L617] s = 8464 [L11] int s__info_callback = __VERIFIER_nondet_int() ; [L12] int s__in_handshake = __VERIFIER_nondet_int() ; [L13] int s__state ; [L14] int s__new_session ; [L15] int s__server ; [L16] int s__version = __VERIFIER_nondet_int() ; [L17] int s__type ; [L18] int s__init_num ; [L19] int s__hit = __VERIFIER_nondet_int() ; [L20] int s__rwstate ; [L21] int s__init_buf___0 = 1; [L22] int s__debug = __VERIFIER_nondet_int() ; [L23] int s__shutdown ; [L24] int s__cert = __VERIFIER_nondet_int() ; [L25] int s__options = __VERIFIER_nondet_int() ; [L26] int s__verify_mode = __VERIFIER_nondet_int() ; [L27] int s__session__peer = __VERIFIER_nondet_int() ; [L28] int s__cert__pkeys__AT0__privatekey = __VERIFIER_nondet_int() ; [L29] int s__ctx__info_callback = __VERIFIER_nondet_int() ; [L30] int s__ctx__stats__sess_accept_renegotiate = __VERIFIER_nondet_int() ; [L31] int s__ctx__stats__sess_accept = __VERIFIER_nondet_int() ; [L32] int s__ctx__stats__sess_accept_good = __VERIFIER_nondet_int() ; [L33] int s__s3__tmp__cert_request ; [L34] int s__s3__tmp__reuse_message = __VERIFIER_nondet_int() ; [L35] int s__s3__tmp__use_rsa_tmp ; [L36] int s__s3__tmp__new_cipher = __VERIFIER_nondet_int() ; [L37] int s__s3__tmp__new_cipher__algorithms = __VERIFIER_nondet_int() ; [L38] int s__s3__tmp__next_state___0 ; [L39] int s__s3__tmp__new_cipher__algo_strength = __VERIFIER_nondet_int() ; [L40] int s__session__cipher ; [L41] int buf ; [L42] unsigned long l ; [L43] unsigned long Time ; [L44] unsigned long tmp ; [L45] int cb ; [L46] long num1 = __VERIFIER_nondet_long() ; [L47] int ret ; [L48] int new_state ; [L49] int state ; [L50] int skip ; [L51] int got_new_session ; [L52] int tmp___1 = __VERIFIER_nondet_int() ; [L53] int tmp___2 = __VERIFIER_nondet_int() ; [L54] int tmp___3 = __VERIFIER_nondet_int() ; [L55] int tmp___4 = __VERIFIER_nondet_int() ; [L56] int tmp___5 = __VERIFIER_nondet_int() ; [L57] int tmp___6 = __VERIFIER_nondet_int() ; [L58] int tmp___7 ; [L59] long tmp___8 = __VERIFIER_nondet_long() ; [L60] int tmp___9 = __VERIFIER_nondet_int() ; [L61] int tmp___10 = __VERIFIER_nondet_int() ; [L62] int blastFlag ; [L63] int __cil_tmp55 ; [L64] unsigned long __cil_tmp56 ; [L65] unsigned long __cil_tmp57 ; [L66] unsigned long __cil_tmp58 ; [L67] unsigned long __cil_tmp59 ; [L68] int __cil_tmp60 ; [L69] unsigned long __cil_tmp61 ; [L73] s__state = initial_state [L74] blastFlag = 0 [L75] tmp = __VERIFIER_nondet_int() [L76] Time = tmp [L77] cb = 0 [L78] ret = -1 [L79] skip = 0 [L80] got_new_session = 0 [L81] COND FALSE !(s__info_callback != 0) [L84] COND FALSE !(s__ctx__info_callback != 0) [L88] s__in_handshake ++ [L89] COND TRUE tmp___1 + 12288 [L90] COND TRUE tmp___2 + 16384 [L94] COND FALSE !(s__cert == 0) [L98] COND TRUE 1 [L100] state = s__state [L101] COND FALSE !(s__state == 12292) [L104] COND FALSE !(s__state == 16384) [L107] COND FALSE !(s__state == 8192) [L110] COND FALSE !(s__state == 24576) [L113] COND FALSE !(s__state == 8195) [L116] COND FALSE !(s__state == 8480) [L119] COND FALSE !(s__state == 8481) [L122] COND FALSE !(s__state == 8482) [L125] COND TRUE s__state == 8464 [L271] s__shutdown = 0 [L272] ret = __VERIFIER_nondet_int() [L273] COND TRUE blastFlag == 0 [L274] blastFlag = 1 [L276] COND FALSE !(ret <= 0) [L279] got_new_session = 1 [L280] s__state = 8496 [L281] s__init_num = 0 [L579] COND FALSE !(! s__s3__tmp__reuse_message) [L596] skip = 0 [L98] COND TRUE 1 [L100] state = s__state [L101] COND FALSE !(s__state == 12292) [L104] COND FALSE !(s__state == 16384) [L107] COND FALSE !(s__state == 8192) [L110] COND FALSE !(s__state == 24576) [L113] COND FALSE !(s__state == 8195) [L116] COND FALSE !(s__state == 8480) [L119] COND FALSE !(s__state == 8481) [L122] COND FALSE !(s__state == 8482) [L125] COND FALSE !(s__state == 8464) [L128] COND FALSE !(s__state == 8465) [L131] COND FALSE !(s__state == 8466) [L134] COND TRUE s__state == 8496 [L285] ret = __VERIFIER_nondet_int() [L286] COND TRUE blastFlag == 1 [L287] blastFlag = 2 [L293] COND FALSE !(ret <= 0) [L296] COND TRUE \read(s__hit) [L297] s__state = 8656 [L301] s__init_num = 0 [L579] COND FALSE !(! s__s3__tmp__reuse_message) [L596] skip = 0 [L98] COND TRUE 1 [L100] state = s__state [L101] COND FALSE !(s__state == 12292) [L104] COND FALSE !(s__state == 16384) [L107] COND FALSE !(s__state == 8192) [L110] COND FALSE !(s__state == 24576) [L113] COND FALSE !(s__state == 8195) [L116] COND FALSE !(s__state == 8480) [L119] COND FALSE !(s__state == 8481) [L122] COND FALSE !(s__state == 8482) [L125] COND FALSE !(s__state == 8464) [L128] COND FALSE !(s__state == 8465) [L131] COND FALSE !(s__state == 8466) [L134] COND FALSE !(s__state == 8496) [L137] COND FALSE !(s__state == 8497) [L140] COND FALSE !(s__state == 8512) [L143] COND FALSE !(s__state == 8513) [L146] COND FALSE !(s__state == 8528) [L149] COND FALSE !(s__state == 8529) [L152] COND FALSE !(s__state == 8544) [L155] COND FALSE !(s__state == 8545) [L158] COND FALSE !(s__state == 8560) [L161] COND FALSE !(s__state == 8561) [L164] COND FALSE !(s__state == 8448) [L167] COND FALSE !(s__state == 8576) [L170] COND FALSE !(s__state == 8577) [L173] COND FALSE !(s__state == 8592) [L176] COND FALSE !(s__state == 8593) [L179] COND FALSE !(s__state == 8608) [L182] COND FALSE !(s__state == 8609) [L185] COND FALSE !(s__state == 8640) [L188] COND FALSE !(s__state == 8641) [L191] COND TRUE s__state == 8656 [L490] s__session__cipher = s__s3__tmp__new_cipher [L491] COND FALSE !(! tmp___9) [L495] ret = __VERIFIER_nondet_int() [L496] COND TRUE blastFlag == 2 [L497] blastFlag = 3 [L499] COND FALSE !(ret <= 0) [L502] s__state = 8672 [L503] s__init_num = 0 [L504] COND FALSE !(! tmp___10) [L579] COND FALSE !(! s__s3__tmp__reuse_message) [L596] skip = 0 [L98] COND TRUE 1 [L100] state = s__state [L101] COND FALSE !(s__state == 12292) [L104] COND FALSE !(s__state == 16384) [L107] COND FALSE !(s__state == 8192) [L110] COND FALSE !(s__state == 24576) [L113] COND FALSE !(s__state == 8195) [L116] COND FALSE !(s__state == 8480) [L119] COND FALSE !(s__state == 8481) [L122] COND FALSE !(s__state == 8482) [L125] COND FALSE !(s__state == 8464) [L128] COND FALSE !(s__state == 8465) [L131] COND FALSE !(s__state == 8466) [L134] COND FALSE !(s__state == 8496) [L137] COND FALSE !(s__state == 8497) [L140] COND FALSE !(s__state == 8512) [L143] COND FALSE !(s__state == 8513) [L146] COND FALSE !(s__state == 8528) [L149] COND FALSE !(s__state == 8529) [L152] COND FALSE !(s__state == 8544) [L155] COND FALSE !(s__state == 8545) [L158] COND FALSE !(s__state == 8560) [L161] COND FALSE !(s__state == 8561) [L164] COND FALSE !(s__state == 8448) [L167] COND FALSE !(s__state == 8576) [L170] COND FALSE !(s__state == 8577) [L173] COND FALSE !(s__state == 8592) [L176] COND FALSE !(s__state == 8593) [L179] COND FALSE !(s__state == 8608) [L182] COND FALSE !(s__state == 8609) [L185] COND FALSE !(s__state == 8640) [L188] COND FALSE !(s__state == 8641) [L191] COND FALSE !(s__state == 8656) [L194] COND FALSE !(s__state == 8657) [L197] COND TRUE s__state == 8672 [L511] ret = __VERIFIER_nondet_int() [L512] COND TRUE blastFlag == 3 [L607] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 106 locations, 1 error locations. Result: UNSAFE, OverallTime: 2.0s, OverallIterations: 5, TraceHistogramMax: 4, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 635 SDtfs, 79 SDslu, 292 SDs, 0 SdLazy, 449 SolverSat, 74 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=199occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 21 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 360 NumberOfCodeBlocks, 360 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 248 ConstructedInterpolants, 0 QuantifiedInterpolants, 31992 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 122/122 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 incorrect! Received shutdown request...