java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data --generate-csv --csv-dir csv -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-ToothlessTaipan_INTCON-OldIcfg.epf -i ../../../trunk/examples/svcomp/loops/while_infinite_loop_2_true-unreach-call_false-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dace188-m [2018-09-15 21:03:39,572 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-15 21:03:39,574 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-15 21:03:39,587 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-15 21:03:39,587 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-15 21:03:39,588 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-15 21:03:39,590 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-15 21:03:39,591 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-15 21:03:39,593 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-15 21:03:39,594 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-15 21:03:39,595 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-15 21:03:39,595 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-15 21:03:39,596 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-15 21:03:39,597 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-15 21:03:39,599 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-15 21:03:39,600 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-15 21:03:39,601 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-15 21:03:39,603 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-15 21:03:39,605 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-15 21:03:39,607 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-15 21:03:39,608 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-15 21:03:39,610 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-15 21:03:39,612 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-15 21:03:39,613 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-15 21:03:39,613 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-15 21:03:39,614 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-15 21:03:39,615 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-15 21:03:39,616 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-15 21:03:39,617 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-15 21:03:39,618 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-15 21:03:39,619 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-15 21:03:39,619 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-15 21:03:39,620 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-15 21:03:39,620 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-15 21:03:39,621 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-15 21:03:39,622 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-15 21:03:39,622 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-ToothlessTaipan_INTCON-OldIcfg.epf [2018-09-15 21:03:39,638 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-15 21:03:39,638 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-15 21:03:39,639 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-15 21:03:39,639 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-15 21:03:39,640 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-15 21:03:39,640 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-15 21:03:39,640 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-15 21:03:39,640 INFO L133 SettingsManager]: * Octagon Domain=false [2018-09-15 21:03:39,641 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-09-15 21:03:39,641 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-15 21:03:39,641 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-15 21:03:39,642 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-15 21:03:39,642 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-15 21:03:39,642 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-15 21:03:39,642 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-15 21:03:39,643 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-15 21:03:39,643 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-15 21:03:39,643 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-15 21:03:39,643 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-15 21:03:39,644 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-15 21:03:39,644 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-15 21:03:39,644 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-15 21:03:39,644 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-15 21:03:39,644 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-15 21:03:39,645 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-15 21:03:39,645 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-15 21:03:39,645 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-15 21:03:39,645 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-09-15 21:03:39,646 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-15 21:03:39,646 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-15 21:03:39,646 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-15 21:03:39,646 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-15 21:03:39,646 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-15 21:03:39,705 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-15 21:03:39,722 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-15 21:03:39,729 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-15 21:03:39,731 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-15 21:03:39,731 INFO L276 PluginConnector]: CDTParser initialized [2018-09-15 21:03:39,732 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/while_infinite_loop_2_true-unreach-call_false-termination.i [2018-09-15 21:03:40,100 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7178ce2b9/952a1cfaf98342b18bb9d53695a3ac13/FLAGbf5de94aa [2018-09-15 21:03:40,283 INFO L277 CDTParser]: Found 1 translation units. [2018-09-15 21:03:40,284 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/while_infinite_loop_2_true-unreach-call_false-termination.i [2018-09-15 21:03:40,289 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7178ce2b9/952a1cfaf98342b18bb9d53695a3ac13/FLAGbf5de94aa [2018-09-15 21:03:40,313 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7178ce2b9/952a1cfaf98342b18bb9d53695a3ac13 [2018-09-15 21:03:40,325 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-15 21:03:40,328 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-15 21:03:40,330 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-15 21:03:40,330 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-15 21:03:40,337 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-15 21:03:40,340 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 09:03:40" (1/1) ... [2018-09-15 21:03:40,344 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54a51875 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 09:03:40, skipping insertion in model container [2018-09-15 21:03:40,344 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 09:03:40" (1/1) ... [2018-09-15 21:03:40,356 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-15 21:03:40,551 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-15 21:03:40,570 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-15 21:03:40,573 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-15 21:03:40,584 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 09:03:40 WrapperNode [2018-09-15 21:03:40,585 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-15 21:03:40,586 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-15 21:03:40,586 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-15 21:03:40,586 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-15 21:03:40,596 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 09:03:40" (1/1) ... [2018-09-15 21:03:40,602 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 09:03:40" (1/1) ... [2018-09-15 21:03:40,608 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-15 21:03:40,609 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-15 21:03:40,609 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-15 21:03:40,609 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-15 21:03:40,619 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 09:03:40" (1/1) ... [2018-09-15 21:03:40,620 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 09:03:40" (1/1) ... [2018-09-15 21:03:40,620 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 09:03:40" (1/1) ... [2018-09-15 21:03:40,621 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 09:03:40" (1/1) ... [2018-09-15 21:03:40,622 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 09:03:40" (1/1) ... [2018-09-15 21:03:40,628 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 09:03:40" (1/1) ... [2018-09-15 21:03:40,629 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 09:03:40" (1/1) ... [2018-09-15 21:03:40,631 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-15 21:03:40,631 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-15 21:03:40,632 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-15 21:03:40,632 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-15 21:03:40,633 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 09:03:40" (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 [2018-09-15 21:03:40,706 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-15 21:03:40,706 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-15 21:03:40,707 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-15 21:03:40,707 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-15 21:03:40,707 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-15 21:03:40,707 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-15 21:03:40,707 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-09-15 21:03:40,708 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-09-15 21:03:40,944 INFO L353 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-15 21:03:40,945 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 09:03:40 BoogieIcfgContainer [2018-09-15 21:03:40,945 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-15 21:03:40,946 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-15 21:03:40,946 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-15 21:03:40,950 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-15 21:03:40,950 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.09 09:03:40" (1/3) ... [2018-09-15 21:03:40,951 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e8adebe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.09 09:03:40, skipping insertion in model container [2018-09-15 21:03:40,951 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 09:03:40" (2/3) ... [2018-09-15 21:03:40,952 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e8adebe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.09 09:03:40, skipping insertion in model container [2018-09-15 21:03:40,952 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 09:03:40" (3/3) ... [2018-09-15 21:03:40,954 INFO L112 eAbstractionObserver]: Analyzing ICFG while_infinite_loop_2_true-unreach-call_false-termination.i [2018-09-15 21:03:40,964 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-15 21:03:40,973 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-15 21:03:41,021 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-15 21:03:41,022 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-15 21:03:41,022 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-15 21:03:41,022 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-15 21:03:41,023 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-15 21:03:41,023 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-15 21:03:41,023 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-15 21:03:41,023 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-15 21:03:41,023 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-15 21:03:41,039 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states. [2018-09-15 21:03:41,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-09-15 21:03:41,046 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 21:03:41,047 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-15 21:03:41,048 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 21:03:41,053 INFO L82 PathProgramCache]: Analyzing trace with hash -1870526464, now seen corresponding path program 1 times [2018-09-15 21:03:41,055 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 21:03:41,056 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 11 with the following transitions: [2018-09-15 21:03:41,059 INFO L202 CegarAbsIntRunner]: [0], [4], [17], [21], [24], [26], [32], [33], [34], [38] [2018-09-15 21:03:41,095 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-15 21:03:41,096 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 21:03:41,164 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 21:03:41,166 INFO L272 AbstractInterpreter]: Visited 6 different actions 6 times. Never merged. Never widened. Never found a fixpoint. Largest state had 1 variables. [2018-09-15 21:03:41,193 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 21:03:41,240 INFO L224 lantSequenceWeakener]: Could never weaken! [2018-09-15 21:03:41,241 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 21:03:41,274 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 21:03:41,276 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 21:03:41,276 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-09-15 21:03:41,276 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 21:03:41,282 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-15 21:03:41,289 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-15 21:03:41,290 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-15 21:03:41,293 INFO L87 Difference]: Start difference. First operand 19 states. Second operand 3 states. [2018-09-15 21:03:41,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 21:03:41,319 INFO L93 Difference]: Finished difference Result 28 states and 35 transitions. [2018-09-15 21:03:41,320 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-15 21:03:41,321 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2018-09-15 21:03:41,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 21:03:41,331 INFO L225 Difference]: With dead ends: 28 [2018-09-15 21:03:41,331 INFO L226 Difference]: Without dead ends: 14 [2018-09-15 21:03:41,336 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 9 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-15 21:03:41,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2018-09-15 21:03:41,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2018-09-15 21:03:41,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2018-09-15 21:03:41,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2018-09-15 21:03:41,411 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 10 [2018-09-15 21:03:41,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 21:03:41,412 INFO L480 AbstractCegarLoop]: Abstraction has 14 states and 14 transitions. [2018-09-15 21:03:41,412 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-15 21:03:41,413 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2018-09-15 21:03:41,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-09-15 21:03:41,414 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 21:03:41,414 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-15 21:03:41,414 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 21:03:41,415 INFO L82 PathProgramCache]: Analyzing trace with hash 1863838843, now seen corresponding path program 1 times [2018-09-15 21:03:41,415 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 21:03:41,415 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 12 with the following transitions: [2018-09-15 21:03:41,416 INFO L202 CegarAbsIntRunner]: [0], [4], [8], [14], [21], [24], [26], [32], [33], [34], [36] [2018-09-15 21:03:41,424 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-15 21:03:41,424 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 21:03:41,477 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 21:03:41,478 INFO L272 AbstractInterpreter]: Visited 10 different actions 10 times. Never merged. Never widened. Never found a fixpoint. Largest state had 2 variables. [2018-09-15 21:03:41,499 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 21:03:41,536 INFO L232 lantSequenceWeakener]: Weakened 1 states. On average, predicates are now at 50% of their original sizes. [2018-09-15 21:03:41,537 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 21:03:41,608 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 21:03:41,609 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 21:03:41,609 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-09-15 21:03:41,609 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 21:03:41,610 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-15 21:03:41,610 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-15 21:03:41,610 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-09-15 21:03:41,611 INFO L87 Difference]: Start difference. First operand 14 states and 14 transitions. Second operand 5 states. [2018-09-15 21:03:41,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 21:03:41,669 INFO L93 Difference]: Finished difference Result 14 states and 14 transitions. [2018-09-15 21:03:41,671 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-09-15 21:03:41,671 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2018-09-15 21:03:41,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 21:03:41,672 INFO L225 Difference]: With dead ends: 14 [2018-09-15 21:03:41,672 INFO L226 Difference]: Without dead ends: 0 [2018-09-15 21:03:41,673 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-09-15 21:03:41,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-09-15 21:03:41,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-09-15 21:03:41,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-09-15 21:03:41,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-09-15 21:03:41,675 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2018-09-15 21:03:41,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 21:03:41,675 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-09-15 21:03:41,675 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-15 21:03:41,676 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-09-15 21:03:41,676 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-09-15 21:03:41,680 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-09-15 21:03:41,872 INFO L429 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-09-15 21:03:41,873 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-09-15 21:03:41,873 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-09-15 21:03:41,873 INFO L429 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-09-15 21:03:41,873 INFO L429 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-09-15 21:03:41,874 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-09-15 21:03:41,874 INFO L429 ceAbstractionStarter]: At program point mainENTRY(lines 9 18) the Hoare annotation is: true [2018-09-15 21:03:41,874 INFO L426 ceAbstractionStarter]: For program point mainEXIT(lines 9 18) no Hoare annotation was computed. [2018-09-15 21:03:41,874 INFO L422 ceAbstractionStarter]: At program point L14(line 14) the Hoare annotation is: (= main_~x~0 0) [2018-09-15 21:03:41,875 INFO L422 ceAbstractionStarter]: At program point L14-1(lines 12 15) the Hoare annotation is: (= main_~x~0 0) [2018-09-15 21:03:41,875 INFO L426 ceAbstractionStarter]: For program point mainFINAL(lines 9 18) no Hoare annotation was computed. [2018-09-15 21:03:41,877 INFO L426 ceAbstractionStarter]: For program point L12-1(lines 12 15) no Hoare annotation was computed. [2018-09-15 21:03:41,877 INFO L422 ceAbstractionStarter]: At program point L12-3(lines 12 15) the Hoare annotation is: false [2018-09-15 21:03:41,877 INFO L426 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2018-09-15 21:03:41,878 INFO L429 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(lines 3 8) the Hoare annotation is: true [2018-09-15 21:03:41,878 INFO L426 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(lines 3 8) no Hoare annotation was computed. [2018-09-15 21:03:41,879 INFO L426 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2018-09-15 21:03:41,879 INFO L426 ceAbstractionStarter]: For program point L4(lines 4 6) no Hoare annotation was computed. [2018-09-15 21:03:41,880 INFO L426 ceAbstractionStarter]: For program point L4-2(lines 3 8) no Hoare annotation was computed. [2018-09-15 21:03:41,892 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.09 09:03:41 BoogieIcfgContainer [2018-09-15 21:03:41,892 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-15 21:03:41,893 INFO L168 Benchmark]: Toolchain (without parser) took 1568.00 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 734.5 MB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -730.5 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. [2018-09-15 21:03:41,898 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-15 21:03:41,901 INFO L168 Benchmark]: CACSL2BoogieTranslator took 255.27 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: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. [2018-09-15 21:03:41,902 INFO L168 Benchmark]: Boogie Procedure Inliner took 22.64 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. [2018-09-15 21:03:41,903 INFO L168 Benchmark]: Boogie Preprocessor took 22.27 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. [2018-09-15 21:03:41,906 INFO L168 Benchmark]: RCFGBuilder took 313.49 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 734.5 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -776.8 MB). Peak memory consumption was 26.7 MB. Max. memory is 7.1 GB. [2018-09-15 21:03:41,909 INFO L168 Benchmark]: TraceAbstraction took 946.40 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 35.8 MB). Peak memory consumption was 35.8 MB. Max. memory is 7.1 GB. [2018-09-15 21:03:41,917 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 255.27 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: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 22.64 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. * Boogie Preprocessor took 22.27 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. * RCFGBuilder took 313.49 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 734.5 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -776.8 MB). Peak memory consumption was 26.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 946.40 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 35.8 MB). Peak memory consumption was 35.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 5]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 12]: Loop Invariant Derived loop invariant: x == 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 19 locations, 1 error locations. SAFE Result, 0.8s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.1s HoareAnnotationTime, HoareTripleCheckerStatistics: 23 SDtfs, 7 SDslu, 31 SDs, 0 SdLazy, 7 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 4 DeclaredPredicates, 20 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=19occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.2s AbstIntTime, 2 AbstIntIterations, 2 AbstIntStrong, 0.8947368421052632 AbsIntWeakeningRatio, 0.3157894736842105 AbsIntAvgWeakeningVarsNumRemoved, 0.15789473684210525 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 8 LocationsWithAnnotation, 10 PreInvPairs, 12 NumberOfFragments, 12 HoareAnnotationTreeSize, 10 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 8 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: No data available, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/while_infinite_loop_2_true-unreach-call_false-termination.i_svcomp-Reach-64bit-ToothlessTaipan_INTCON-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-15_21-03-41-949.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/while_infinite_loop_2_true-unreach-call_false-termination.i_svcomp-Reach-64bit-ToothlessTaipan_INTCON-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-15_21-03-41-949.csv Received shutdown request...