/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/ldv-regression/just_assert.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-6598664 [2019-11-24 03:55:49,247 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-24 03:55:49,249 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-24 03:55:49,266 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-24 03:55:49,266 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-24 03:55:49,269 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-24 03:55:49,270 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-24 03:55:49,279 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-24 03:55:49,281 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-24 03:55:49,282 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-24 03:55:49,283 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-24 03:55:49,284 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-24 03:55:49,285 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-24 03:55:49,286 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-24 03:55:49,287 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-24 03:55:49,290 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-24 03:55:49,291 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-24 03:55:49,291 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-24 03:55:49,295 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-24 03:55:49,297 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-24 03:55:49,299 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-24 03:55:49,300 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-24 03:55:49,303 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-24 03:55:49,304 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-24 03:55:49,306 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-11-24 03:55:49,315 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-24 03:55:49,316 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-24 03:55:49,318 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-24 03:55:49,318 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-24 03:55:49,320 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-24 03:55:49,320 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-24 03:55:49,321 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-24 03:55:49,321 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-24 03:55:49,321 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-24 03:55:49,325 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-24 03:55:49,327 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-24 03:55:49,327 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 03:55:49,350 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-24 03:55:49,351 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-24 03:55:49,352 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-24 03:55:49,352 INFO L138 SettingsManager]: * User list type=DISABLED [2019-11-24 03:55:49,353 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-11-24 03:55:49,353 INFO L138 SettingsManager]: * Explicit value domain=true [2019-11-24 03:55:49,353 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-11-24 03:55:49,353 INFO L138 SettingsManager]: * Octagon Domain=false [2019-11-24 03:55:49,353 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-11-24 03:55:49,354 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-11-24 03:55:49,355 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-11-24 03:55:49,355 INFO L138 SettingsManager]: * Interval Domain=false [2019-11-24 03:55:49,355 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-11-24 03:55:49,356 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-11-24 03:55:49,356 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-11-24 03:55:49,357 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-24 03:55:49,357 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-24 03:55:49,358 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-24 03:55:49,358 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-24 03:55:49,358 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-24 03:55:49,359 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-24 03:55:49,359 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-24 03:55:49,359 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-24 03:55:49,359 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-24 03:55:49,359 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-24 03:55:49,359 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-24 03:55:49,360 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-24 03:55:49,360 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-24 03:55:49,361 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-24 03:55:49,361 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-24 03:55:49,362 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-24 03:55:49,362 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-24 03:55:49,362 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-24 03:55:49,362 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-11-24 03:55:49,363 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-24 03:55:49,363 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-24 03:55:49,363 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-24 03:55:49,363 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-11-24 03:55:49,649 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-24 03:55:49,667 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-24 03:55:49,670 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-24 03:55:49,671 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-24 03:55:49,672 INFO L275 PluginConnector]: CDTParser initialized [2019-11-24 03:55:49,672 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/just_assert.i [2019-11-24 03:55:49,743 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4fd2ce8b5/d8664b93661c4b5f99f5f18c9672d44a/FLAGe6f2cbf24 [2019-11-24 03:55:50,197 INFO L306 CDTParser]: Found 1 translation units. [2019-11-24 03:55:50,198 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/just_assert.i [2019-11-24 03:55:50,203 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4fd2ce8b5/d8664b93661c4b5f99f5f18c9672d44a/FLAGe6f2cbf24 [2019-11-24 03:55:50,632 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4fd2ce8b5/d8664b93661c4b5f99f5f18c9672d44a [2019-11-24 03:55:50,640 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-24 03:55:50,642 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-24 03:55:50,642 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-24 03:55:50,643 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-24 03:55:50,646 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-24 03:55:50,647 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 03:55:50" (1/1) ... [2019-11-24 03:55:50,651 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@38af30d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 03:55:50, skipping insertion in model container [2019-11-24 03:55:50,652 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 03:55:50" (1/1) ... [2019-11-24 03:55:50,658 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-24 03:55:50,675 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-24 03:55:50,815 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-24 03:55:50,821 INFO L203 MainTranslator]: Completed pre-run [2019-11-24 03:55:50,835 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-24 03:55:50,850 INFO L208 MainTranslator]: Completed translation [2019-11-24 03:55:50,851 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 03:55:50 WrapperNode [2019-11-24 03:55:50,851 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-24 03:55:50,852 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-24 03:55:50,852 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-24 03:55:50,853 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-24 03:55:50,861 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 03:55:50" (1/1) ... [2019-11-24 03:55:50,865 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 03:55:50" (1/1) ... [2019-11-24 03:55:50,878 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-24 03:55:50,878 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-24 03:55:50,878 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-24 03:55:50,878 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-24 03:55:50,961 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 03:55:50" (1/1) ... [2019-11-24 03:55:50,961 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 03:55:50" (1/1) ... [2019-11-24 03:55:50,961 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 03:55:50" (1/1) ... [2019-11-24 03:55:50,962 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 03:55:50" (1/1) ... [2019-11-24 03:55:50,963 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 03:55:50" (1/1) ... [2019-11-24 03:55:50,965 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 03:55:50" (1/1) ... [2019-11-24 03:55:50,966 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 03:55:50" (1/1) ... [2019-11-24 03:55:50,967 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-24 03:55:50,967 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-24 03:55:50,967 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-24 03:55:50,967 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-24 03:55:50,968 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 03:55:50" (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 03:55:51,022 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-24 03:55:51,023 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-24 03:55:51,128 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-24 03:55:51,128 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-11-24 03:55:51,129 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 03:55:51 BoogieIcfgContainer [2019-11-24 03:55:51,129 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-24 03:55:51,130 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-24 03:55:51,131 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-24 03:55:51,134 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-24 03:55:51,134 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 03:55:50" (1/3) ... [2019-11-24 03:55:51,135 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30e0425 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 03:55:51, skipping insertion in model container [2019-11-24 03:55:51,135 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 03:55:50" (2/3) ... [2019-11-24 03:55:51,135 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30e0425 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 03:55:51, skipping insertion in model container [2019-11-24 03:55:51,135 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 03:55:51" (3/3) ... [2019-11-24 03:55:51,137 INFO L109 eAbstractionObserver]: Analyzing ICFG just_assert.i [2019-11-24 03:55:51,147 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-24 03:55:51,153 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-24 03:55:51,164 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-24 03:55:51,188 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-24 03:55:51,188 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-24 03:55:51,188 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-24 03:55:51,188 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-24 03:55:51,188 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-24 03:55:51,189 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-24 03:55:51,189 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-24 03:55:51,189 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-24 03:55:51,200 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states. [2019-11-24 03:55:51,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-11-24 03:55:51,205 INFO L402 BasicCegarLoop]: Found error trace [2019-11-24 03:55:51,206 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1] [2019-11-24 03:55:51,206 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-24 03:55:51,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-24 03:55:51,212 INFO L82 PathProgramCache]: Analyzing trace with hash 30882, now seen corresponding path program 1 times [2019-11-24 03:55:51,221 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-24 03:55:51,221 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2017150263] [2019-11-24 03:55:51,222 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-24 03:55:51,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-24 03:55:51,298 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 03:55:51,299 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2017150263] [2019-11-24 03:55:51,299 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-24 03:55:51,299 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-24 03:55:51,301 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [785162615] [2019-11-24 03:55:51,305 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-24 03:55:51,306 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-24 03:55:51,319 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-24 03:55:51,320 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-24 03:55:51,322 INFO L87 Difference]: Start difference. First operand 6 states. Second operand 2 states. [2019-11-24 03:55:51,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-24 03:55:51,339 INFO L93 Difference]: Finished difference Result 8 states and 7 transitions. [2019-11-24 03:55:51,340 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-24 03:55:51,341 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 3 [2019-11-24 03:55:51,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-24 03:55:51,348 INFO L225 Difference]: With dead ends: 8 [2019-11-24 03:55:51,349 INFO L226 Difference]: Without dead ends: 0 [2019-11-24 03:55:51,352 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 03:55:51,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-24 03:55:51,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-24 03:55:51,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-24 03:55:51,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-24 03:55:51,379 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 3 [2019-11-24 03:55:51,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-24 03:55:51,380 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-24 03:55:51,380 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-24 03:55:51,380 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-24 03:55:51,380 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-24 03:55:51,386 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-24 03:55:51,403 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-24 03:55:51,403 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-24 03:55:51,403 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 8) no Hoare annotation was computed. [2019-11-24 03:55:51,403 INFO L444 ceAbstractionStarter]: For program point L8(line 8) no Hoare annotation was computed. [2019-11-24 03:55:51,403 INFO L444 ceAbstractionStarter]: For program point L7(lines 7 9) no Hoare annotation was computed. [2019-11-24 03:55:51,404 INFO L447 ceAbstractionStarter]: At program point L7-2(lines 7 9) the Hoare annotation is: true [2019-11-24 03:55:51,412 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.11 03:55:51 BoogieIcfgContainer [2019-11-24 03:55:51,412 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-24 03:55:51,415 INFO L168 Benchmark]: Toolchain (without parser) took 772.11 ms. Allocated memory was 144.7 MB in the beginning and 200.8 MB in the end (delta: 56.1 MB). Free memory was 102.6 MB in the beginning and 151.6 MB in the end (delta: -49.1 MB). Peak memory consumption was 7.0 MB. Max. memory is 7.1 GB. [2019-11-24 03:55:51,416 INFO L168 Benchmark]: CDTParser took 0.19 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: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2019-11-24 03:55:51,417 INFO L168 Benchmark]: CACSL2BoogieTranslator took 209.00 ms. Allocated memory is still 144.7 MB. Free memory was 102.4 MB in the beginning and 93.4 MB in the end (delta: 8.9 MB). Peak memory consumption was 8.9 MB. Max. memory is 7.1 GB. [2019-11-24 03:55:51,418 INFO L168 Benchmark]: Boogie Procedure Inliner took 26.05 ms. Allocated memory is still 144.7 MB. Free memory was 93.4 MB in the beginning and 92.0 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2019-11-24 03:55:51,420 INFO L168 Benchmark]: Boogie Preprocessor took 88.62 ms. Allocated memory was 144.7 MB in the beginning and 200.8 MB in the end (delta: 56.1 MB). Free memory was 92.0 MB in the beginning and 179.4 MB in the end (delta: -87.4 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. [2019-11-24 03:55:51,421 INFO L168 Benchmark]: RCFGBuilder took 162.53 ms. Allocated memory is still 200.8 MB. Free memory was 179.4 MB in the beginning and 170.6 MB in the end (delta: 8.8 MB). Peak memory consumption was 8.8 MB. Max. memory is 7.1 GB. [2019-11-24 03:55:51,421 INFO L168 Benchmark]: TraceAbstraction took 281.44 ms. Allocated memory is still 200.8 MB. Free memory was 169.9 MB in the beginning and 151.6 MB in the end (delta: 18.3 MB). Peak memory consumption was 18.3 MB. Max. memory is 7.1 GB. [2019-11-24 03:55:51,426 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 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: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 209.00 ms. Allocated memory is still 144.7 MB. Free memory was 102.4 MB in the beginning and 93.4 MB in the end (delta: 8.9 MB). Peak memory consumption was 8.9 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 26.05 ms. Allocated memory is still 144.7 MB. Free memory was 93.4 MB in the beginning and 92.0 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 88.62 ms. Allocated memory was 144.7 MB in the beginning and 200.8 MB in the end (delta: 56.1 MB). Free memory was 92.0 MB in the beginning and 179.4 MB in the end (delta: -87.4 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 162.53 ms. Allocated memory is still 200.8 MB. Free memory was 179.4 MB in the beginning and 170.6 MB in the end (delta: 8.8 MB). Peak memory consumption was 8.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 281.44 ms. Allocated memory is still 200.8 MB. Free memory was 169.9 MB in the beginning and 151.6 MB in the end (delta: 18.3 MB). Peak memory consumption was 18.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 8]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 7]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 6 locations, 1 error locations. Result: SAFE, OverallTime: 0.2s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 3 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=6occurred 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, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 1 LocationsWithAnnotation, 1 PreInvPairs, 2 NumberOfFragments, 1 HoareAnnotationTreeSize, 1 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 1 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 3 NumberOfCodeBlocks, 3 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 2 ConstructedInterpolants, 0 QuantifiedInterpolants, 4 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 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...