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/alias_of_return.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-673a906-m [2019-10-03 02:22:31,498 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-03 02:22:31,502 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-03 02:22:31,525 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-03 02:22:31,525 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-03 02:22:31,527 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-03 02:22:31,529 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-03 02:22:31,541 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-03 02:22:31,543 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-03 02:22:31,544 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-03 02:22:31,548 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-03 02:22:31,550 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-03 02:22:31,551 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-03 02:22:31,553 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-03 02:22:31,555 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-03 02:22:31,558 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-03 02:22:31,559 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-03 02:22:31,560 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-03 02:22:31,565 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-03 02:22:31,567 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-03 02:22:31,570 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-03 02:22:31,573 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-03 02:22:31,574 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-03 02:22:31,575 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-03 02:22:31,580 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-03 02:22:31,580 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-03 02:22:31,580 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-03 02:22:31,583 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-03 02:22:31,584 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-03 02:22:31,586 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-03 02:22:31,586 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-03 02:22:31,587 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-03 02:22:31,588 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-03 02:22:31,589 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-03 02:22:31,593 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-03 02:22:31,593 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-03 02:22:31,594 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-03 02:22:31,594 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-03 02:22:31,595 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-03 02:22:31,595 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-03 02:22:31,596 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-03 02:22:31,598 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 [2019-10-03 02:22:31,619 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-03 02:22:31,619 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-03 02:22:31,620 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-10-03 02:22:31,620 INFO L138 SettingsManager]: * Log level for plugins=info [2019-10-03 02:22:31,621 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-03 02:22:31,621 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-03 02:22:31,621 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-10-03 02:22:31,621 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-10-03 02:22:31,622 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-03 02:22:31,622 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-10-03 02:22:31,624 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-03 02:22:31,624 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-03 02:22:31,625 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-03 02:22:31,625 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-03 02:22:31,625 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-03 02:22:31,625 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-03 02:22:31,626 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-03 02:22:31,626 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-03 02:22:31,626 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-03 02:22:31,626 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-03 02:22:31,626 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-03 02:22:31,627 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-10-03 02:22:31,627 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-03 02:22:31,627 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-03 02:22:31,627 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-03 02:22:31,628 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-03 02:22:31,628 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-10-03 02:22:31,628 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-03 02:22:31,628 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-03 02:22:31,628 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-10-03 02:22:31,679 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-03 02:22:31,691 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-03 02:22:31,694 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-03 02:22:31,696 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-03 02:22:31,696 INFO L275 PluginConnector]: CDTParser initialized [2019-10-03 02:22:31,697 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/alias_of_return.i [2019-10-03 02:22:31,759 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/adad6c198/561af85c0bd24dbc82e0cea82abe84e2/FLAGe3d818142 [2019-10-03 02:22:32,183 INFO L306 CDTParser]: Found 1 translation units. [2019-10-03 02:22:32,183 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/alias_of_return.i [2019-10-03 02:22:32,191 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/adad6c198/561af85c0bd24dbc82e0cea82abe84e2/FLAGe3d818142 [2019-10-03 02:22:32,595 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/adad6c198/561af85c0bd24dbc82e0cea82abe84e2 [2019-10-03 02:22:32,608 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-03 02:22:32,609 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-03 02:22:32,610 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-03 02:22:32,610 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-03 02:22:32,613 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-03 02:22:32,614 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.10 02:22:32" (1/1) ... [2019-10-03 02:22:32,618 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c19cb95 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:22:32, skipping insertion in model container [2019-10-03 02:22:32,618 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.10 02:22:32" (1/1) ... [2019-10-03 02:22:32,625 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-03 02:22:32,641 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-03 02:22:32,804 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-03 02:22:32,817 INFO L188 MainTranslator]: Completed pre-run [2019-10-03 02:22:32,833 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-03 02:22:32,850 INFO L192 MainTranslator]: Completed translation [2019-10-03 02:22:32,851 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:22:32 WrapperNode [2019-10-03 02:22:32,851 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-03 02:22:32,852 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-03 02:22:32,852 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-03 02:22:32,852 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-03 02:22:32,951 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:22:32" (1/1) ... [2019-10-03 02:22:32,953 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:22:32" (1/1) ... [2019-10-03 02:22:32,962 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:22:32" (1/1) ... [2019-10-03 02:22:32,962 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:22:32" (1/1) ... [2019-10-03 02:22:32,968 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:22:32" (1/1) ... [2019-10-03 02:22:32,970 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:22:32" (1/1) ... [2019-10-03 02:22:32,971 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:22:32" (1/1) ... [2019-10-03 02:22:32,973 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-03 02:22:32,974 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-03 02:22:32,974 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-03 02:22:32,974 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-03 02:22:32,975 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:22:32" (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 [2019-10-03 02:22:33,041 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-03 02:22:33,041 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-03 02:22:33,041 INFO L138 BoogieDeclarations]: Found implementation of procedure err [2019-10-03 02:22:33,041 INFO L138 BoogieDeclarations]: Found implementation of procedure return_self [2019-10-03 02:22:33,041 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-03 02:22:33,041 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-03 02:22:33,041 INFO L130 BoogieDeclarations]: Found specification of procedure err [2019-10-03 02:22:33,042 INFO L130 BoogieDeclarations]: Found specification of procedure return_self [2019-10-03 02:22:33,042 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-03 02:22:33,042 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-03 02:22:33,042 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-03 02:22:33,042 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-03 02:22:33,042 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-03 02:22:33,042 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-03 02:22:33,043 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-03 02:22:33,242 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-03 02:22:33,243 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-10-03 02:22:33,245 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.10 02:22:33 BoogieIcfgContainer [2019-10-03 02:22:33,245 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-03 02:22:33,247 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-03 02:22:33,247 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-03 02:22:33,250 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-03 02:22:33,250 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.10 02:22:32" (1/3) ... [2019-10-03 02:22:33,251 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4aae6e97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.10 02:22:33, skipping insertion in model container [2019-10-03 02:22:33,251 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:22:32" (2/3) ... [2019-10-03 02:22:33,252 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4aae6e97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.10 02:22:33, skipping insertion in model container [2019-10-03 02:22:33,252 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.10 02:22:33" (3/3) ... [2019-10-03 02:22:33,253 INFO L109 eAbstractionObserver]: Analyzing ICFG alias_of_return.i [2019-10-03 02:22:33,268 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-03 02:22:33,278 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-03 02:22:33,298 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-03 02:22:33,352 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-10-03 02:22:33,352 INFO L378 AbstractCegarLoop]: Hoare is false [2019-10-03 02:22:33,352 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-03 02:22:33,353 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-03 02:22:33,353 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-03 02:22:33,353 INFO L382 AbstractCegarLoop]: Difference is false [2019-10-03 02:22:33,353 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-03 02:22:33,353 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-03 02:22:33,375 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states. [2019-10-03 02:22:33,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-10-03 02:22:33,383 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:22:33,384 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:22:33,386 INFO L418 AbstractCegarLoop]: === Iteration 1 === [errErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:22:33,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:22:33,391 INFO L82 PathProgramCache]: Analyzing trace with hash 1496730974, now seen corresponding path program 1 times [2019-10-03 02:22:33,393 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:22:33,438 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:22:33,439 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:22:33,439 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:22:33,439 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:22:33,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:22:33,630 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-03 02:22:33,632 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:22:33,632 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-03 02:22:33,633 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:22:33,637 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-03 02:22:33,653 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-03 02:22:33,654 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-03 02:22:33,657 INFO L87 Difference]: Start difference. First operand 22 states. Second operand 5 states. [2019-10-03 02:22:33,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:22:33,701 INFO L93 Difference]: Finished difference Result 17 states and 16 transitions. [2019-10-03 02:22:33,701 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-03 02:22:33,703 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2019-10-03 02:22:33,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:22:33,711 INFO L225 Difference]: With dead ends: 17 [2019-10-03 02:22:33,712 INFO L226 Difference]: Without dead ends: 0 [2019-10-03 02:22:33,714 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-03 02:22:33,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-03 02:22:33,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-03 02:22:33,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-03 02:22:33,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-03 02:22:33,748 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2019-10-03 02:22:33,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:22:33,748 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-03 02:22:33,749 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-03 02:22:33,749 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-03 02:22:33,749 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-03 02:22:33,755 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.10 02:22:33 BoogieIcfgContainer [2019-10-03 02:22:33,755 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-03 02:22:33,758 INFO L168 Benchmark]: Toolchain (without parser) took 1147.86 ms. Allocated memory was 132.1 MB in the beginning and 198.7 MB in the end (delta: 66.6 MB). Free memory was 87.7 MB in the beginning and 137.6 MB in the end (delta: -49.9 MB). Peak memory consumption was 16.7 MB. Max. memory is 7.1 GB. [2019-10-03 02:22:33,759 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 132.1 MB. Free memory was 106.3 MB in the beginning and 106.0 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-10-03 02:22:33,760 INFO L168 Benchmark]: CACSL2BoogieTranslator took 241.64 ms. Allocated memory is still 132.1 MB. Free memory was 87.5 MB in the beginning and 77.9 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.5 MB. Max. memory is 7.1 GB. [2019-10-03 02:22:33,762 INFO L168 Benchmark]: Boogie Preprocessor took 121.94 ms. Allocated memory was 132.1 MB in the beginning and 198.7 MB in the end (delta: 66.6 MB). Free memory was 77.9 MB in the beginning and 175.5 MB in the end (delta: -97.6 MB). Peak memory consumption was 16.0 MB. Max. memory is 7.1 GB. [2019-10-03 02:22:33,762 INFO L168 Benchmark]: RCFGBuilder took 271.34 ms. Allocated memory is still 198.7 MB. Free memory was 175.5 MB in the beginning and 161.9 MB in the end (delta: 13.6 MB). Peak memory consumption was 13.6 MB. Max. memory is 7.1 GB. [2019-10-03 02:22:33,763 INFO L168 Benchmark]: TraceAbstraction took 508.59 ms. Allocated memory is still 198.7 MB. Free memory was 161.9 MB in the beginning and 137.6 MB in the end (delta: 24.3 MB). Peak memory consumption was 24.3 MB. Max. memory is 7.1 GB. [2019-10-03 02:22:33,767 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 132.1 MB. Free memory was 106.3 MB in the beginning and 106.0 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 241.64 ms. Allocated memory is still 132.1 MB. Free memory was 87.5 MB in the beginning and 77.9 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 121.94 ms. Allocated memory was 132.1 MB in the beginning and 198.7 MB in the end (delta: 66.6 MB). Free memory was 77.9 MB in the beginning and 175.5 MB in the end (delta: -97.6 MB). Peak memory consumption was 16.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 271.34 ms. Allocated memory is still 198.7 MB. Free memory was 175.5 MB in the beginning and 161.9 MB in the end (delta: 13.6 MB). Peak memory consumption was 13.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 508.59 ms. Allocated memory is still 198.7 MB. Free memory was 161.9 MB in the beginning and 137.6 MB in the end (delta: 24.3 MB). Peak memory consumption was 24.3 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 - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 22 locations, 1 error locations. SAFE Result, 0.4s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 13 SDtfs, 0 SDslu, 34 SDs, 0 SdLazy, 13 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=22occurred 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, 0.1s InterpolantComputationTime, 14 NumberOfCodeBlocks, 14 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 13 ConstructedInterpolants, 0 QuantifiedInterpolants, 429 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...