java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem10_label41_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-0fd1304 [2018-10-23 22:05:14,510 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-23 22:05:14,512 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-23 22:05:14,524 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-23 22:05:14,524 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-23 22:05:14,525 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-23 22:05:14,527 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-23 22:05:14,528 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-23 22:05:14,530 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-23 22:05:14,531 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-23 22:05:14,531 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-23 22:05:14,532 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-23 22:05:14,533 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-23 22:05:14,534 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-23 22:05:14,535 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-23 22:05:14,535 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-23 22:05:14,536 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-23 22:05:14,538 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-23 22:05:14,540 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-23 22:05:14,542 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-23 22:05:14,543 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-23 22:05:14,544 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-23 22:05:14,546 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-10-23 22:05:14,555 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf [2018-10-23 22:05:14,572 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-23 22:05:14,572 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-23 22:05:14,573 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-23 22:05:14,573 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-23 22:05:14,573 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-23 22:05:14,573 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-23 22:05:14,574 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-23 22:05:14,575 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-23 22:05:14,575 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-23 22:05:14,575 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-23 22:05:14,575 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-23 22:05:14,575 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-23 22:05:14,576 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-23 22:05:14,576 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-23 22:05:14,576 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-23 22:05:14,577 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-23 22:05:14,578 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-23 22:05:14,578 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-23 22:05:14,578 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-23 22:05:14,578 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-23 22:05:14,579 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-23 22:05:14,579 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-23 22:05:14,579 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-23 22:05:14,579 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-23 22:05:14,579 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-23 22:05:14,580 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-23 22:05:14,580 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-23 22:05:14,580 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-23 22:05:14,580 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-23 22:05:14,581 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-23 22:05:14,581 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-23 22:05:14,581 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-23 22:05:14,581 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-23 22:05:14,581 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-23 22:05:14,634 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-23 22:05:14,653 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-23 22:05:14,658 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-23 22:05:14,660 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-23 22:05:14,660 INFO L276 PluginConnector]: CDTParser initialized [2018-10-23 22:05:14,661 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem10_label41_false-unreach-call.c [2018-10-23 22:05:14,726 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/54ed8152a/e654406eb4844969809614e6d43ee503/FLAG8a47ba900 [2018-10-23 22:05:15,320 INFO L298 CDTParser]: Found 1 translation units. [2018-10-23 22:05:15,321 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem10_label41_false-unreach-call.c [2018-10-23 22:05:15,341 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/54ed8152a/e654406eb4844969809614e6d43ee503/FLAG8a47ba900 [2018-10-23 22:05:15,357 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/54ed8152a/e654406eb4844969809614e6d43ee503 [2018-10-23 22:05:15,368 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-23 22:05:15,369 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-23 22:05:15,371 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-23 22:05:15,371 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-23 22:05:15,377 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-23 22:05:15,378 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 10:05:15" (1/1) ... [2018-10-23 22:05:15,381 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e7fca2c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:05:15, skipping insertion in model container [2018-10-23 22:05:15,382 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 10:05:15" (1/1) ... [2018-10-23 22:05:15,392 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-23 22:05:15,456 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-23 22:05:15,933 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-23 22:05:15,937 INFO L189 MainTranslator]: Completed pre-run [2018-10-23 22:05:16,033 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-23 22:05:16,054 INFO L193 MainTranslator]: Completed translation [2018-10-23 22:05:16,055 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:05:16 WrapperNode [2018-10-23 22:05:16,055 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-23 22:05:16,056 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-23 22:05:16,056 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-23 22:05:16,056 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-23 22:05:16,066 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:05:16" (1/1) ... [2018-10-23 22:05:16,100 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:05:16" (1/1) ... [2018-10-23 22:05:16,268 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-23 22:05:16,269 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-23 22:05:16,269 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-23 22:05:16,269 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-23 22:05:16,280 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:05:16" (1/1) ... [2018-10-23 22:05:16,281 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:05:16" (1/1) ... [2018-10-23 22:05:16,300 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:05:16" (1/1) ... [2018-10-23 22:05:16,301 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:05:16" (1/1) ... [2018-10-23 22:05:16,343 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:05:16" (1/1) ... [2018-10-23 22:05:16,366 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:05:16" (1/1) ... [2018-10-23 22:05:16,380 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:05:16" (1/1) ... [2018-10-23 22:05:16,402 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-23 22:05:16,402 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-23 22:05:16,403 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-23 22:05:16,404 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-23 22:05:16,405 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:05:16" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-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 [2018-10-23 22:05:16,477 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-23 22:05:16,478 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-23 22:05:16,478 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-23 22:05:16,478 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-23 22:05:16,478 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-23 22:05:16,478 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-23 22:05:16,479 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-23 22:05:16,479 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-23 22:05:19,618 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-23 22:05:19,619 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 10:05:19 BoogieIcfgContainer [2018-10-23 22:05:19,619 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-23 22:05:19,620 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-23 22:05:19,621 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-23 22:05:19,624 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-23 22:05:19,624 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 10:05:15" (1/3) ... [2018-10-23 22:05:19,625 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@424273e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 10:05:19, skipping insertion in model container [2018-10-23 22:05:19,625 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:05:16" (2/3) ... [2018-10-23 22:05:19,625 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@424273e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 10:05:19, skipping insertion in model container [2018-10-23 22:05:19,626 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 10:05:19" (3/3) ... [2018-10-23 22:05:19,628 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem10_label41_false-unreach-call.c [2018-10-23 22:05:19,636 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-23 22:05:19,644 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-23 22:05:19,660 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-23 22:05:19,698 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-23 22:05:19,698 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-23 22:05:19,698 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-23 22:05:19,699 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-23 22:05:19,699 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-23 22:05:19,699 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-23 22:05:19,699 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-23 22:05:19,700 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-23 22:05:19,726 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states. [2018-10-23 22:05:19,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-10-23 22:05:19,734 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 22:05:19,735 INFO L375 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] [2018-10-23 22:05:19,737 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 22:05:19,746 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 22:05:19,746 INFO L82 PathProgramCache]: Analyzing trace with hash 531161921, now seen corresponding path program 1 times [2018-10-23 22:05:19,749 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-23 22:05:19,800 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 22:05:19,801 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 22:05:19,801 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 22:05:19,801 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-23 22:05:19,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 22:05:20,158 WARN L179 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-23 22:05:20,179 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 22:05:20,181 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 22:05:20,181 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-23 22:05:20,182 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-23 22:05:20,187 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-23 22:05:20,201 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-23 22:05:20,202 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-23 22:05:20,204 INFO L87 Difference]: Start difference. First operand 216 states. Second operand 3 states. [2018-10-23 22:05:22,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 22:05:22,133 INFO L93 Difference]: Finished difference Result 574 states and 992 transitions. [2018-10-23 22:05:22,135 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-23 22:05:22,136 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 27 [2018-10-23 22:05:22,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 22:05:22,155 INFO L225 Difference]: With dead ends: 574 [2018-10-23 22:05:22,155 INFO L226 Difference]: Without dead ends: 356 [2018-10-23 22:05:22,163 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-23 22:05:22,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 356 states. [2018-10-23 22:05:22,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 356 to 356. [2018-10-23 22:05:22,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 356 states. [2018-10-23 22:05:22,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 356 states to 356 states and 609 transitions. [2018-10-23 22:05:22,241 INFO L78 Accepts]: Start accepts. Automaton has 356 states and 609 transitions. Word has length 27 [2018-10-23 22:05:22,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 22:05:22,242 INFO L481 AbstractCegarLoop]: Abstraction has 356 states and 609 transitions. [2018-10-23 22:05:22,242 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-23 22:05:22,242 INFO L276 IsEmpty]: Start isEmpty. Operand 356 states and 609 transitions. [2018-10-23 22:05:22,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2018-10-23 22:05:22,248 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 22:05:22,250 INFO L375 BasicCegarLoop]: trace histogram [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, 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, 1, 1, 1, 1, 1] [2018-10-23 22:05:22,250 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 22:05:22,251 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 22:05:22,251 INFO L82 PathProgramCache]: Analyzing trace with hash 130424032, now seen corresponding path program 1 times [2018-10-23 22:05:22,251 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-23 22:05:22,253 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 22:05:22,253 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 22:05:22,253 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 22:05:22,253 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-23 22:05:22,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 22:05:22,575 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 22:05:22,575 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 22:05:22,575 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-23 22:05:22,576 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-23 22:05:22,578 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-23 22:05:22,578 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-23 22:05:22,578 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-23 22:05:22,578 INFO L87 Difference]: Start difference. First operand 356 states and 609 transitions. Second operand 6 states. [2018-10-23 22:05:24,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 22:05:24,529 INFO L93 Difference]: Finished difference Result 867 states and 1507 transitions. [2018-10-23 22:05:24,530 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-23 22:05:24,530 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 101 [2018-10-23 22:05:24,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 22:05:24,538 INFO L225 Difference]: With dead ends: 867 [2018-10-23 22:05:24,538 INFO L226 Difference]: Without dead ends: 517 [2018-10-23 22:05:24,541 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-10-23 22:05:24,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 517 states. [2018-10-23 22:05:24,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 517 to 508. [2018-10-23 22:05:24,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 508 states. [2018-10-23 22:05:24,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 508 states to 508 states and 831 transitions. [2018-10-23 22:05:24,591 INFO L78 Accepts]: Start accepts. Automaton has 508 states and 831 transitions. Word has length 101 [2018-10-23 22:05:24,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 22:05:24,592 INFO L481 AbstractCegarLoop]: Abstraction has 508 states and 831 transitions. [2018-10-23 22:05:24,592 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-23 22:05:24,592 INFO L276 IsEmpty]: Start isEmpty. Operand 508 states and 831 transitions. [2018-10-23 22:05:24,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2018-10-23 22:05:24,596 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 22:05:24,596 INFO L375 BasicCegarLoop]: trace histogram [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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 22:05:24,596 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 22:05:24,596 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 22:05:24,597 INFO L82 PathProgramCache]: Analyzing trace with hash 1594427148, now seen corresponding path program 1 times [2018-10-23 22:05:24,597 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-23 22:05:24,598 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 22:05:24,598 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 22:05:24,598 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 22:05:24,598 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-23 22:05:24,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 22:05:24,925 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 12 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 22:05:24,925 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-23 22:05:24,925 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-23 22:05:24,926 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 108 with the following transitions: [2018-10-23 22:05:24,928 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [117], [119], [122], [130], [138], [146], [154], [162], [170], [178], [186], [194], [202], [210], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [534], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-10-23 22:05:24,997 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-23 22:05:24,998 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-23 22:05:27,681 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-23 22:05:39,450 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-23 22:05:39,452 INFO L272 AbstractInterpreter]: Visited 87 different actions 492 times. Merged at 5 different actions 25 times. Widened at 1 different actions 1 times. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-10-23 22:05:39,464 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 22:05:39,464 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-23 22:05:41,279 INFO L232 lantSequenceWeakener]: Weakened 18 states. On average, predicates are now at 77.96% of their original sizes. [2018-10-23 22:05:41,279 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-23 22:05:56,707 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-23 22:05:56,709 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-23 22:05:56,709 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [18] imperfect sequences [7] total 23 [2018-10-23 22:05:56,709 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-23 22:05:56,710 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-10-23 22:05:56,710 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-10-23 22:05:56,711 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=227, Unknown=0, NotChecked=0, Total=306 [2018-10-23 22:05:56,711 INFO L87 Difference]: Start difference. First operand 508 states and 831 transitions. Second operand 18 states. [2018-10-23 22:08:22,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 22:08:22,627 INFO L93 Difference]: Finished difference Result 2031 states and 3428 transitions. [2018-10-23 22:08:22,627 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2018-10-23 22:08:22,628 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 107 [2018-10-23 22:08:22,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 22:08:22,637 INFO L225 Difference]: With dead ends: 2031 [2018-10-23 22:08:22,638 INFO L226 Difference]: Without dead ends: 1529 [2018-10-23 22:08:22,642 INFO L605 BasicCegarLoop]: 2 DeclaredPredicates, 112 GetRequests, 78 SyntacticMatches, 12 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 161 ImplicationChecksByTransitivity, 16.2s TimeCoverageRelationStatistics Valid=131, Invalid=421, Unknown=0, NotChecked=0, Total=552 [2018-10-23 22:08:22,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1529 states. [2018-10-23 22:08:22,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1529 to 1208. [2018-10-23 22:08:22,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1208 states. [2018-10-23 22:08:22,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1208 states to 1208 states and 1599 transitions. [2018-10-23 22:08:22,761 INFO L78 Accepts]: Start accepts. Automaton has 1208 states and 1599 transitions. Word has length 107 [2018-10-23 22:08:22,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 22:08:22,762 INFO L481 AbstractCegarLoop]: Abstraction has 1208 states and 1599 transitions. [2018-10-23 22:08:22,762 INFO L482 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-10-23 22:08:22,762 INFO L276 IsEmpty]: Start isEmpty. Operand 1208 states and 1599 transitions. [2018-10-23 22:08:22,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2018-10-23 22:08:22,767 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 22:08:22,767 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 22:08:22,768 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 22:08:22,768 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 22:08:22,768 INFO L82 PathProgramCache]: Analyzing trace with hash -1170146455, now seen corresponding path program 1 times [2018-10-23 22:08:22,768 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-23 22:08:22,770 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 22:08:22,770 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 22:08:22,770 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 22:08:22,770 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-23 22:08:22,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 22:08:23,129 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 109 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 22:08:23,129 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-23 22:08:23,129 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-23 22:08:23,130 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 190 with the following transitions: [2018-10-23 22:08:23,130 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [117], [119], [122], [130], [138], [146], [154], [162], [170], [178], [186], [194], [202], [210], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [498], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [578], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-10-23 22:08:23,136 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-23 22:08:23,137 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-23 22:08:24,315 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-23 22:08:35,635 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-23 22:08:35,635 INFO L272 AbstractInterpreter]: Visited 99 different actions 564 times. Merged at 5 different actions 25 times. Widened at 1 different actions 1 times. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-10-23 22:08:35,642 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 22:08:35,642 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-23 22:08:37,935 INFO L232 lantSequenceWeakener]: Weakened 103 states. On average, predicates are now at 73.63% of their original sizes. [2018-10-23 22:08:37,935 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-23 22:08:51,020 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-23 22:08:51,020 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-23 22:08:51,021 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [17] imperfect sequences [6] total 21 [2018-10-23 22:08:51,021 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-23 22:08:51,022 INFO L460 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-10-23 22:08:51,022 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-10-23 22:08:51,022 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=208, Unknown=0, NotChecked=0, Total=272 [2018-10-23 22:08:51,022 INFO L87 Difference]: Start difference. First operand 1208 states and 1599 transitions. Second operand 17 states. Received shutdown request... [2018-10-23 22:09:18,563 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-10-23 22:09:18,563 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-23 22:09:18,569 WARN L205 ceAbstractionStarter]: Timeout [2018-10-23 22:09:18,570 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.10 10:09:18 BoogieIcfgContainer [2018-10-23 22:09:18,570 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-23 22:09:18,571 INFO L168 Benchmark]: Toolchain (without parser) took 243202.22 ms. Allocated memory was 1.5 GB in the beginning and 4.2 GB in the end (delta: 2.7 GB). Free memory was 1.4 GB in the beginning and 3.6 GB in the end (delta: -2.2 GB). Peak memory consumption was 494.5 MB. Max. memory is 7.1 GB. [2018-10-23 22:09:18,572 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-23 22:09:18,573 INFO L168 Benchmark]: CACSL2BoogieTranslator took 684.79 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. [2018-10-23 22:09:18,574 INFO L168 Benchmark]: Boogie Procedure Inliner took 212.28 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 727.7 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -802.7 MB). Peak memory consumption was 19.0 MB. Max. memory is 7.1 GB. [2018-10-23 22:09:18,575 INFO L168 Benchmark]: Boogie Preprocessor took 133.41 ms. Allocated memory is still 2.2 GB. Free memory is still 2.2 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-23 22:09:18,575 INFO L168 Benchmark]: RCFGBuilder took 3217.12 ms. Allocated memory is still 2.2 GB. Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 133.9 MB). Peak memory consumption was 133.9 MB. Max. memory is 7.1 GB. [2018-10-23 22:09:18,576 INFO L168 Benchmark]: TraceAbstraction took 238949.44 ms. Allocated memory was 2.2 GB in the beginning and 4.2 GB in the end (delta: 1.9 GB). Free memory was 2.0 GB in the beginning and 3.6 GB in the end (delta: -1.5 GB). Peak memory consumption was 403.8 MB. Max. memory is 7.1 GB. [2018-10-23 22:09:18,581 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 684.79 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 212.28 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 727.7 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -802.7 MB). Peak memory consumption was 19.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 133.41 ms. Allocated memory is still 2.2 GB. Free memory is still 2.2 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 3217.12 ms. Allocated memory is still 2.2 GB. Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 133.9 MB). Peak memory consumption was 133.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 238949.44 ms. Allocated memory was 2.2 GB in the beginning and 4.2 GB in the end (delta: 1.9 GB). Free memory was 2.0 GB in the beginning and 3.6 GB in the end (delta: -1.5 GB). Peak memory consumption was 403.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 64]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 64). Cancelled while BasicCegarLoop was constructing difference of abstraction (1208states) and FLOYD_HOARE automaton (currently 15 states, 17 states before enhancement),while ReachableStatesComputation was computing reachable states (222 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 216 locations, 1 error locations. TIMEOUT Result, 238.8s OverallTime, 4 OverallIterations, 3 TraceHistogramMax, 177.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 404 SDtfs, 3510 SDslu, 430 SDs, 0 SdLazy, 3199 SolverSat, 913 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 84.7s Time, PredicateUnifierStatistics: 4 DeclaredPredicates, 320 GetRequests, 235 SyntacticMatches, 35 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 410 ImplicationChecksByTransitivity, 30.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1208occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 27.0s AbstIntTime, 2 AbstIntIterations, 2 AbstIntStrong, 0.9928460514640638 AbsIntWeakeningRatio, 0.1564625850340136 AbsIntAvgWeakeningVarsNumRemoved, 181.14625850340136 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 3 MinimizatonAttempts, 330 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 424 NumberOfCodeBlocks, 424 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 420 ConstructedInterpolants, 0 QuantifiedInterpolants, 250916 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 2 PerfectInterpolantSequences, 141/151 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown