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/Problem01_label56_false-unreach-call_false-termination.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-0fd1304 [2018-10-23 21:11:46,583 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-23 21:11:46,585 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-23 21:11:46,598 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-23 21:11:46,598 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-23 21:11:46,599 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-23 21:11:46,601 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-23 21:11:46,603 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-23 21:11:46,605 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-23 21:11:46,606 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-23 21:11:46,607 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-23 21:11:46,607 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-23 21:11:46,608 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-23 21:11:46,609 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-23 21:11:46,611 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-23 21:11:46,611 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-23 21:11:46,615 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-23 21:11:46,618 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-23 21:11:46,622 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-23 21:11:46,629 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-23 21:11:46,630 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-23 21:11:46,633 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-23 21:11:46,639 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-10-23 21:11:46,659 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 21:11:46,693 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-23 21:11:46,693 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-23 21:11:46,697 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-23 21:11:46,697 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-23 21:11:46,697 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-23 21:11:46,697 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-23 21:11:46,698 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-23 21:11:46,698 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-23 21:11:46,698 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-23 21:11:46,698 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-23 21:11:46,698 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-23 21:11:46,699 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-23 21:11:46,700 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-23 21:11:46,701 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-23 21:11:46,701 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-23 21:11:46,701 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-23 21:11:46,701 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-23 21:11:46,701 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-23 21:11:46,702 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-23 21:11:46,703 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-23 21:11:46,703 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-23 21:11:46,703 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-23 21:11:46,703 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-23 21:11:46,704 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-23 21:11:46,704 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-23 21:11:46,704 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-23 21:11:46,705 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-23 21:11:46,705 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-23 21:11:46,705 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-23 21:11:46,705 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-23 21:11:46,705 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-23 21:11:46,706 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-23 21:11:46,706 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-23 21:11:46,706 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-23 21:11:46,781 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-23 21:11:46,798 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-23 21:11:46,802 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-23 21:11:46,804 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-23 21:11:46,804 INFO L276 PluginConnector]: CDTParser initialized [2018-10-23 21:11:46,805 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label56_false-unreach-call_false-termination.c [2018-10-23 21:11:46,886 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/b61ad8e1f/d9ea2e184f334032832320d99faaffdf/FLAG276dbcaea [2018-10-23 21:11:47,529 INFO L298 CDTParser]: Found 1 translation units. [2018-10-23 21:11:47,530 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem01_label56_false-unreach-call_false-termination.c [2018-10-23 21:11:47,556 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/b61ad8e1f/d9ea2e184f334032832320d99faaffdf/FLAG276dbcaea [2018-10-23 21:11:47,582 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/b61ad8e1f/d9ea2e184f334032832320d99faaffdf [2018-10-23 21:11:47,594 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-23 21:11:47,596 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-23 21:11:47,597 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-23 21:11:47,597 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-23 21:11:47,605 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-23 21:11:47,606 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 09:11:47" (1/1) ... [2018-10-23 21:11:47,610 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ba9c3c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:11:47, skipping insertion in model container [2018-10-23 21:11:47,610 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 09:11:47" (1/1) ... [2018-10-23 21:11:47,621 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-23 21:11:47,695 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-23 21:11:48,173 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-23 21:11:48,179 INFO L189 MainTranslator]: Completed pre-run [2018-10-23 21:11:48,286 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-23 21:11:48,311 INFO L193 MainTranslator]: Completed translation [2018-10-23 21:11:48,312 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:11:48 WrapperNode [2018-10-23 21:11:48,312 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-23 21:11:48,313 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-23 21:11:48,313 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-23 21:11:48,313 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-23 21:11:48,324 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:11:48" (1/1) ... [2018-10-23 21:11:48,356 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:11:48" (1/1) ... [2018-10-23 21:11:48,532 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-23 21:11:48,533 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-23 21:11:48,533 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-23 21:11:48,533 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-23 21:11:48,544 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:11:48" (1/1) ... [2018-10-23 21:11:48,544 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:11:48" (1/1) ... [2018-10-23 21:11:48,556 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:11:48" (1/1) ... [2018-10-23 21:11:48,557 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:11:48" (1/1) ... [2018-10-23 21:11:48,591 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:11:48" (1/1) ... [2018-10-23 21:11:48,611 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:11:48" (1/1) ... [2018-10-23 21:11:48,620 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:11:48" (1/1) ... [2018-10-23 21:11:48,631 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-23 21:11:48,631 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-23 21:11:48,631 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-23 21:11:48,632 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-23 21:11:48,633 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:11:48" (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 21:11:48,716 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-23 21:11:48,716 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-23 21:11:48,717 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-23 21:11:48,718 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-23 21:11:48,718 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-23 21:11:48,718 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-23 21:11:48,718 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-23 21:11:48,718 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-23 21:11:52,011 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-23 21:11:52,011 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 09:11:52 BoogieIcfgContainer [2018-10-23 21:11:52,012 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-23 21:11:52,013 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-23 21:11:52,013 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-23 21:11:52,016 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-23 21:11:52,017 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 09:11:47" (1/3) ... [2018-10-23 21:11:52,018 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@181edf4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 09:11:52, skipping insertion in model container [2018-10-23 21:11:52,018 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:11:48" (2/3) ... [2018-10-23 21:11:52,019 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@181edf4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 09:11:52, skipping insertion in model container [2018-10-23 21:11:52,019 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 09:11:52" (3/3) ... [2018-10-23 21:11:52,021 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem01_label56_false-unreach-call_false-termination.c [2018-10-23 21:11:52,032 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-23 21:11:52,042 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-23 21:11:52,061 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-23 21:11:52,101 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-23 21:11:52,102 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-23 21:11:52,102 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-23 21:11:52,102 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-23 21:11:52,103 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-23 21:11:52,103 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-23 21:11:52,103 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-23 21:11:52,104 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-23 21:11:52,133 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states. [2018-10-23 21:11:52,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2018-10-23 21:11:52,145 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 21:11:52,147 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, 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 21:11:52,149 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 21:11:52,156 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 21:11:52,156 INFO L82 PathProgramCache]: Analyzing trace with hash 87067645, now seen corresponding path program 1 times [2018-10-23 21:11:52,159 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-23 21:11:52,212 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 21:11:52,212 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 21:11:52,212 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 21:11:52,213 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-23 21:11:52,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 21:11:52,814 WARN L179 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-23 21:11:52,948 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 21:11:52,951 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 21:11:52,951 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-23 21:11:52,951 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-23 21:11:52,958 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-23 21:11:52,980 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-23 21:11:52,980 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-23 21:11:52,983 INFO L87 Difference]: Start difference. First operand 208 states. Second operand 3 states. [2018-10-23 21:11:54,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 21:11:54,568 INFO L93 Difference]: Finished difference Result 550 states and 941 transitions. [2018-10-23 21:11:54,571 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-23 21:11:54,572 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 83 [2018-10-23 21:11:54,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 21:11:54,592 INFO L225 Difference]: With dead ends: 550 [2018-10-23 21:11:54,593 INFO L226 Difference]: Without dead ends: 340 [2018-10-23 21:11:54,600 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-23 21:11:54,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states. [2018-10-23 21:11:54,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 340. [2018-10-23 21:11:54,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 340 states. [2018-10-23 21:11:54,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 340 states to 340 states and 571 transitions. [2018-10-23 21:11:54,674 INFO L78 Accepts]: Start accepts. Automaton has 340 states and 571 transitions. Word has length 83 [2018-10-23 21:11:54,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 21:11:54,675 INFO L481 AbstractCegarLoop]: Abstraction has 340 states and 571 transitions. [2018-10-23 21:11:54,675 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-23 21:11:54,675 INFO L276 IsEmpty]: Start isEmpty. Operand 340 states and 571 transitions. [2018-10-23 21:11:54,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2018-10-23 21:11:54,681 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 21:11:54,682 INFO L375 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1] [2018-10-23 21:11:54,682 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 21:11:54,682 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 21:11:54,683 INFO L82 PathProgramCache]: Analyzing trace with hash 236043766, now seen corresponding path program 1 times [2018-10-23 21:11:54,683 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-23 21:11:54,684 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 21:11:54,684 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 21:11:54,684 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 21:11:54,685 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-23 21:11:54,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 21:11:54,932 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 21:11:54,932 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 21:11:54,933 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-23 21:11:54,933 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-23 21:11:54,936 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-23 21:11:54,936 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-23 21:11:54,936 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-23 21:11:54,937 INFO L87 Difference]: Start difference. First operand 340 states and 571 transitions. Second operand 3 states. [2018-10-23 21:11:55,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 21:11:55,946 INFO L93 Difference]: Finished difference Result 946 states and 1654 transitions. [2018-10-23 21:11:55,947 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-23 21:11:55,947 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 101 [2018-10-23 21:11:55,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 21:11:55,955 INFO L225 Difference]: With dead ends: 946 [2018-10-23 21:11:55,955 INFO L226 Difference]: Without dead ends: 612 [2018-10-23 21:11:55,959 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-23 21:11:55,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 612 states. [2018-10-23 21:11:55,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 612 to 612. [2018-10-23 21:11:55,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 612 states. [2018-10-23 21:11:56,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 612 states to 612 states and 987 transitions. [2018-10-23 21:11:56,002 INFO L78 Accepts]: Start accepts. Automaton has 612 states and 987 transitions. Word has length 101 [2018-10-23 21:11:56,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 21:11:56,003 INFO L481 AbstractCegarLoop]: Abstraction has 612 states and 987 transitions. [2018-10-23 21:11:56,003 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-23 21:11:56,003 INFO L276 IsEmpty]: Start isEmpty. Operand 612 states and 987 transitions. [2018-10-23 21:11:56,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2018-10-23 21:11:56,009 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 21:11:56,009 INFO L375 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 21:11:56,010 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 21:11:56,010 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 21:11:56,010 INFO L82 PathProgramCache]: Analyzing trace with hash 956519722, now seen corresponding path program 1 times [2018-10-23 21:11:56,010 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-23 21:11:56,011 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 21:11:56,012 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 21:11:56,012 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 21:11:56,012 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-23 21:11:56,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 21:11:56,287 WARN L179 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-23 21:11:56,387 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 21:11:56,388 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 21:11:56,388 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-23 21:11:56,388 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-23 21:11:56,389 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-23 21:11:56,389 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-23 21:11:56,389 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-23 21:11:56,390 INFO L87 Difference]: Start difference. First operand 612 states and 987 transitions. Second operand 6 states. [2018-10-23 21:11:58,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 21:11:58,762 INFO L93 Difference]: Finished difference Result 1625 states and 2647 transitions. [2018-10-23 21:11:58,763 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-23 21:11:58,763 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 127 [2018-10-23 21:11:58,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 21:11:58,776 INFO L225 Difference]: With dead ends: 1625 [2018-10-23 21:11:58,778 INFO L226 Difference]: Without dead ends: 1019 [2018-10-23 21:11:58,784 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-10-23 21:11:58,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1019 states. [2018-10-23 21:11:58,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1019 to 1009. [2018-10-23 21:11:58,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1009 states. [2018-10-23 21:11:58,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1009 states to 1009 states and 1456 transitions. [2018-10-23 21:11:58,867 INFO L78 Accepts]: Start accepts. Automaton has 1009 states and 1456 transitions. Word has length 127 [2018-10-23 21:11:58,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 21:11:58,868 INFO L481 AbstractCegarLoop]: Abstraction has 1009 states and 1456 transitions. [2018-10-23 21:11:58,868 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-23 21:11:58,868 INFO L276 IsEmpty]: Start isEmpty. Operand 1009 states and 1456 transitions. [2018-10-23 21:11:58,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2018-10-23 21:11:58,875 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 21:11:58,875 INFO L375 BasicCegarLoop]: trace histogram [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, 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 21:11:58,875 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 21:11:58,876 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 21:11:58,876 INFO L82 PathProgramCache]: Analyzing trace with hash 2140307095, now seen corresponding path program 1 times [2018-10-23 21:11:58,876 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-23 21:11:58,877 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 21:11:58,877 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 21:11:58,877 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 21:11:58,878 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-23 21:11:58,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 21:11:59,443 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 60 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 21:11:59,444 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-23 21:11:59,444 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-23 21:11:59,445 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 140 with the following transitions: [2018-10-23 21:11:59,447 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [6], [10], [14], [17], [18], [22], [26], [30], [34], [38], [42], [46], [50], [54], [58], [62], [66], [70], [74], [78], [82], [86], [90], [94], [98], [102], [106], [110], [114], [118], [122], [126], [130], [134], [138], [142], [145], [146], [150], [154], [158], [162], [166], [170], [174], [178], [182], [186], [190], [194], [198], [202], [206], [210], [214], [218], [222], [226], [230], [234], [238], [242], [246], [250], [254], [258], [262], [266], [273], [281], [289], [297], [301], [303], [757], [761], [765], [771], [775], [777], [782], [783], [784], [786], [787] [2018-10-23 21:11:59,551 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-23 21:11:59,552 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-23 21:12:39,693 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-23 21:12:39,695 INFO L272 AbstractInterpreter]: Visited 87 different actions 152 times. Merged at 4 different actions 4 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 42 variables. [2018-10-23 21:12:39,721 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 21:12:39,721 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-23 21:12:47,344 INFO L232 lantSequenceWeakener]: Weakened 100 states. On average, predicates are now at 80.33% of their original sizes. [2018-10-23 21:12:47,345 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-23 21:13:09,294 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-23 21:13:09,295 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-23 21:13:09,296 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [6] total 18 [2018-10-23 21:13:09,296 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-23 21:13:09,298 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-10-23 21:13:09,298 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-10-23 21:13:09,299 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2018-10-23 21:13:09,299 INFO L87 Difference]: Start difference. First operand 1009 states and 1456 transitions. Second operand 14 states. Received shutdown request... [2018-10-23 21:16:01,329 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2018-10-23 21:16:01,329 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-23 21:16:01,335 WARN L205 ceAbstractionStarter]: Timeout [2018-10-23 21:16:01,335 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.10 09:16:01 BoogieIcfgContainer [2018-10-23 21:16:01,335 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-23 21:16:01,336 INFO L168 Benchmark]: Toolchain (without parser) took 253741.42 ms. Allocated memory was 1.5 GB in the beginning and 4.1 GB in the end (delta: 2.6 GB). Free memory was 1.4 GB in the beginning and 3.3 GB in the end (delta: -2.0 GB). Peak memory consumption was 642.9 MB. Max. memory is 7.1 GB. [2018-10-23 21:16:01,337 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 21:16:01,338 INFO L168 Benchmark]: CACSL2BoogieTranslator took 715.32 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. [2018-10-23 21:16:01,338 INFO L168 Benchmark]: Boogie Procedure Inliner took 219.45 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 664.3 MB). Free memory was 1.3 GB in the beginning and 2.1 GB in the end (delta: -724.2 MB). Peak memory consumption was 19.1 MB. Max. memory is 7.1 GB. [2018-10-23 21:16:01,339 INFO L168 Benchmark]: Boogie Preprocessor took 98.22 ms. Allocated memory is still 2.2 GB. Free memory is still 2.1 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-23 21:16:01,340 INFO L168 Benchmark]: RCFGBuilder took 3380.70 ms. Allocated memory is still 2.2 GB. Free memory was 2.1 GB in the beginning and 2.0 GB in the end (delta: 110.8 MB). Peak memory consumption was 110.8 MB. Max. memory is 7.1 GB. [2018-10-23 21:16:01,341 INFO L168 Benchmark]: TraceAbstraction took 249322.40 ms. Allocated memory was 2.2 GB in the beginning and 4.1 GB in the end (delta: 1.9 GB). Free memory was 2.0 GB in the beginning and 3.3 GB in the end (delta: -1.4 GB). Peak memory consumption was 560.3 MB. Max. memory is 7.1 GB. [2018-10-23 21:16:01,346 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 715.32 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 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 219.45 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 664.3 MB). Free memory was 1.3 GB in the beginning and 2.1 GB in the end (delta: -724.2 MB). Peak memory consumption was 19.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 98.22 ms. Allocated memory is still 2.2 GB. Free memory is still 2.1 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 3380.70 ms. Allocated memory is still 2.2 GB. Free memory was 2.1 GB in the beginning and 2.0 GB in the end (delta: 110.8 MB). Peak memory consumption was 110.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 249322.40 ms. Allocated memory was 2.2 GB in the beginning and 4.1 GB in the end (delta: 1.9 GB). Free memory was 2.0 GB in the beginning and 3.3 GB in the end (delta: -1.4 GB). Peak memory consumption was 560.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 404]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 404). Cancelled while BasicCegarLoop was constructing difference of abstraction (1009states) and FLOYD_HOARE automaton (currently 21 states, 14 states before enhancement),while ReachableStatesComputation was computing reachable states (746 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 208 locations, 1 error locations. TIMEOUT Result, 249.2s OverallTime, 4 OverallIterations, 3 TraceHistogramMax, 177.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 387 SDtfs, 1650 SDslu, 200 SDs, 0 SdLazy, 2212 SolverSat, 569 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 84.3s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 166 GetRequests, 133 SyntacticMatches, 3 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 35.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1009occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 40.2s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 0.9935868302782407 AbsIntWeakeningRatio, 0.2536231884057971 AbsIntAvgWeakeningVarsNumRemoved, 176.55072463768116 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 3 MinimizatonAttempts, 10 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 450 NumberOfCodeBlocks, 450 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 446 ConstructedInterpolants, 0 QuantifiedInterpolants, 153688 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 3 PerfectInterpolantSequences, 116/118 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown