java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf -i ../../../trunk/examples/svcomp/ldv-regression/test30-1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fea9116 [2019-09-20 13:28:44,385 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-20 13:28:44,387 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-20 13:28:44,399 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-20 13:28:44,399 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-20 13:28:44,400 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-20 13:28:44,401 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-20 13:28:44,403 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-20 13:28:44,405 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-20 13:28:44,406 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-20 13:28:44,407 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-20 13:28:44,408 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-20 13:28:44,409 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-20 13:28:44,410 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-20 13:28:44,411 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-20 13:28:44,412 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-20 13:28:44,413 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-20 13:28:44,413 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-20 13:28:44,415 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-20 13:28:44,417 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-20 13:28:44,419 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-20 13:28:44,420 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-20 13:28:44,421 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-20 13:28:44,422 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-20 13:28:44,425 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-09-20 13:28:44,428 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-20 13:28:44,428 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-20 13:28:44,429 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-20 13:28:44,430 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-20 13:28:44,431 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-20 13:28:44,431 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-20 13:28:44,432 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-20 13:28:44,432 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-20 13:28:44,432 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-20 13:28:44,433 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-20 13:28:44,434 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-20 13:28:44,435 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf [2019-09-20 13:28:44,450 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-20 13:28:44,450 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-20 13:28:44,450 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-20 13:28:44,451 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-20 13:28:44,451 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-20 13:28:44,451 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-20 13:28:44,452 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-20 13:28:44,452 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-20 13:28:44,452 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-20 13:28:44,452 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-20 13:28:44,453 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-20 13:28:44,453 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-20 13:28:44,453 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-20 13:28:44,453 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-20 13:28:44,454 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-20 13:28:44,454 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-20 13:28:44,454 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-20 13:28:44,454 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-20 13:28:44,454 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-20 13:28:44,455 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-20 13:28:44,455 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-20 13:28:44,455 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-20 13:28:44,455 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-20 13:28:44,455 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-20 13:28:44,456 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-20 13:28:44,456 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-20 13:28:44,456 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-20 13:28:44,456 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-20 13:28:44,457 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-20 13:28:44,457 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-20 13:28:44,487 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-20 13:28:44,500 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-20 13:28:44,503 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-20 13:28:44,505 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-20 13:28:44,505 INFO L275 PluginConnector]: CDTParser initialized [2019-09-20 13:28:44,506 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/test30-1.c [2019-09-20 13:28:44,564 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c1455c5c4/738c6a4ad3b8467ab728322c9da9dbaa/FLAG1948662f9 [2019-09-20 13:28:45,015 INFO L306 CDTParser]: Found 1 translation units. [2019-09-20 13:28:45,016 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/test30-1.c [2019-09-20 13:28:45,022 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c1455c5c4/738c6a4ad3b8467ab728322c9da9dbaa/FLAG1948662f9 [2019-09-20 13:28:45,409 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c1455c5c4/738c6a4ad3b8467ab728322c9da9dbaa [2019-09-20 13:28:45,418 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-20 13:28:45,420 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-20 13:28:45,421 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-20 13:28:45,421 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-20 13:28:45,424 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-20 13:28:45,425 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:28:45" (1/1) ... [2019-09-20 13:28:45,428 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@377f0a5a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:28:45, skipping insertion in model container [2019-09-20 13:28:45,429 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:28:45" (1/1) ... [2019-09-20 13:28:45,436 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-20 13:28:45,457 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-20 13:28:45,673 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:28:45,684 INFO L188 MainTranslator]: Completed pre-run [2019-09-20 13:28:45,697 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:28:45,716 INFO L192 MainTranslator]: Completed translation [2019-09-20 13:28:45,716 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:28:45 WrapperNode [2019-09-20 13:28:45,716 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-20 13:28:45,717 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-20 13:28:45,717 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-20 13:28:45,717 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-20 13:28:45,818 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:28:45" (1/1) ... [2019-09-20 13:28:45,820 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:28:45" (1/1) ... [2019-09-20 13:28:45,832 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:28:45" (1/1) ... [2019-09-20 13:28:45,832 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:28:45" (1/1) ... [2019-09-20 13:28:45,849 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:28:45" (1/1) ... [2019-09-20 13:28:45,852 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:28:45" (1/1) ... [2019-09-20 13:28:45,853 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:28:45" (1/1) ... [2019-09-20 13:28:45,856 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-20 13:28:45,857 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-20 13:28:45,860 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-20 13:28:45,860 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-20 13:28:45,861 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:28:45" (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 [2019-09-20 13:28:45,919 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-20 13:28:45,920 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-20 13:28:45,920 INFO L138 BoogieDeclarations]: Found implementation of procedure assign [2019-09-20 13:28:45,920 INFO L138 BoogieDeclarations]: Found implementation of procedure assign2 [2019-09-20 13:28:45,920 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-20 13:28:45,920 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-20 13:28:45,920 INFO L130 BoogieDeclarations]: Found specification of procedure assign [2019-09-20 13:28:45,920 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-20 13:28:45,921 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-20 13:28:45,921 INFO L130 BoogieDeclarations]: Found specification of procedure assign2 [2019-09-20 13:28:45,921 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-20 13:28:45,921 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-20 13:28:45,921 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-20 13:28:45,921 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-20 13:28:45,921 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-20 13:28:45,922 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-09-20 13:28:45,922 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-20 13:28:45,922 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-20 13:28:45,922 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-20 13:28:46,141 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-20 13:28:46,141 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-09-20 13:28:46,143 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:28:46 BoogieIcfgContainer [2019-09-20 13:28:46,143 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-20 13:28:46,144 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-20 13:28:46,144 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-20 13:28:46,147 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-20 13:28:46,148 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 01:28:45" (1/3) ... [2019-09-20 13:28:46,149 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d6d334f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:28:46, skipping insertion in model container [2019-09-20 13:28:46,149 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:28:45" (2/3) ... [2019-09-20 13:28:46,150 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d6d334f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:28:46, skipping insertion in model container [2019-09-20 13:28:46,150 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:28:46" (3/3) ... [2019-09-20 13:28:46,151 INFO L109 eAbstractionObserver]: Analyzing ICFG test30-1.c [2019-09-20 13:28:46,168 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-20 13:28:46,192 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-20 13:28:46,217 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-20 13:28:46,257 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-20 13:28:46,257 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-20 13:28:46,257 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-20 13:28:46,257 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-20 13:28:46,258 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-20 13:28:46,258 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-20 13:28:46,258 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-20 13:28:46,258 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-20 13:28:46,279 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states. [2019-09-20 13:28:46,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-09-20 13:28:46,290 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:28:46,292 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:28:46,294 INFO L418 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:28:46,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:28:46,300 INFO L82 PathProgramCache]: Analyzing trace with hash -457594768, now seen corresponding path program 1 times [2019-09-20 13:28:46,303 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:28:46,367 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:28:46,367 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:28:46,367 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:28:46,368 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:28:46,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:28:46,923 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:28:46,926 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:28:46,926 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-09-20 13:28:46,927 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:28:46,932 INFO L454 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-09-20 13:28:46,947 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-09-20 13:28:46,948 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2019-09-20 13:28:46,950 INFO L87 Difference]: Start difference. First operand 23 states. Second operand 11 states. [2019-09-20 13:28:47,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:28:47,365 INFO L93 Difference]: Finished difference Result 21 states and 20 transitions. [2019-09-20 13:28:47,366 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-09-20 13:28:47,367 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 18 [2019-09-20 13:28:47,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:28:47,374 INFO L225 Difference]: With dead ends: 21 [2019-09-20 13:28:47,375 INFO L226 Difference]: Without dead ends: 0 [2019-09-20 13:28:47,377 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2019-09-20 13:28:47,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-20 13:28:47,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-20 13:28:47,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-20 13:28:47,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-20 13:28:47,404 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2019-09-20 13:28:47,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:28:47,404 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-20 13:28:47,404 INFO L476 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-09-20 13:28:47,405 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-20 13:28:47,405 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-20 13:28:47,410 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 01:28:47 BoogieIcfgContainer [2019-09-20 13:28:47,411 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-20 13:28:47,414 INFO L168 Benchmark]: Toolchain (without parser) took 1992.69 ms. Allocated memory was 135.8 MB in the beginning and 230.2 MB in the end (delta: 94.4 MB). Free memory was 91.2 MB in the beginning and 193.4 MB in the end (delta: -102.2 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-09-20 13:28:47,415 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 135.8 MB. Free memory was 110.0 MB in the beginning and 109.8 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-20 13:28:47,416 INFO L168 Benchmark]: CACSL2BoogieTranslator took 296.25 ms. Allocated memory is still 135.8 MB. Free memory was 91.0 MB in the beginning and 81.2 MB in the end (delta: 9.9 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. [2019-09-20 13:28:47,417 INFO L168 Benchmark]: Boogie Preprocessor took 139.59 ms. Allocated memory was 135.8 MB in the beginning and 199.8 MB in the end (delta: 64.0 MB). Free memory was 81.2 MB in the beginning and 175.7 MB in the end (delta: -94.6 MB). Peak memory consumption was 16.0 MB. Max. memory is 7.1 GB. [2019-09-20 13:28:47,418 INFO L168 Benchmark]: RCFGBuilder took 285.92 ms. Allocated memory is still 199.8 MB. Free memory was 175.7 MB in the beginning and 159.8 MB in the end (delta: 16.0 MB). Peak memory consumption was 16.0 MB. Max. memory is 7.1 GB. [2019-09-20 13:28:47,419 INFO L168 Benchmark]: TraceAbstraction took 1266.71 ms. Allocated memory was 199.8 MB in the beginning and 230.2 MB in the end (delta: 30.4 MB). Free memory was 159.2 MB in the beginning and 193.4 MB in the end (delta: -34.2 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-09-20 13:28:47,424 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 135.8 MB. Free memory was 110.0 MB in the beginning and 109.8 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 296.25 ms. Allocated memory is still 135.8 MB. Free memory was 91.0 MB in the beginning and 81.2 MB in the end (delta: 9.9 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 139.59 ms. Allocated memory was 135.8 MB in the beginning and 199.8 MB in the end (delta: 64.0 MB). Free memory was 81.2 MB in the beginning and 175.7 MB in the end (delta: -94.6 MB). Peak memory consumption was 16.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 285.92 ms. Allocated memory is still 199.8 MB. Free memory was 175.7 MB in the beginning and 159.8 MB in the end (delta: 16.0 MB). Peak memory consumption was 16.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1266.71 ms. Allocated memory was 199.8 MB in the beginning and 230.2 MB in the end (delta: 30.4 MB). Free memory was 159.2 MB in the beginning and 193.4 MB in the end (delta: -34.2 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 31]: 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 - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 23 locations, 1 error locations. SAFE Result, 1.1s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 11 SDtfs, 14 SDslu, 38 SDs, 0 SdLazy, 89 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=23occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 18 NumberOfCodeBlocks, 18 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 17 ConstructedInterpolants, 0 QuantifiedInterpolants, 8109 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...