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_OCT-OldIcfg.epf -i ../../../trunk/examples/svcomp/loop-lit/css2003_true-unreach-call_true-termination.c.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-69f5bdd-m [2018-09-19 08:01:38,374 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-19 08:01:38,376 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-19 08:01:38,395 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-19 08:01:38,395 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-19 08:01:38,397 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-19 08:01:38,398 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-19 08:01:38,400 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-19 08:01:38,402 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-19 08:01:38,403 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-19 08:01:38,404 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-19 08:01:38,404 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-19 08:01:38,405 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-19 08:01:38,406 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-19 08:01:38,407 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-19 08:01:38,408 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-19 08:01:38,409 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-19 08:01:38,411 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-19 08:01:38,414 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-19 08:01:38,416 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-19 08:01:38,417 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-19 08:01:38,421 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-19 08:01:38,425 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-19 08:01:38,426 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-19 08:01:38,426 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-19 08:01:38,429 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-19 08:01:38,431 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-19 08:01:38,432 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-19 08:01:38,433 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-19 08:01:38,437 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-19 08:01:38,437 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-19 08:01:38,438 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-09-19 08:01:38,443 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-ToothlessTaipan_OCT-OldIcfg.epf [2018-09-19 08:01:38,473 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-19 08:01:38,474 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-19 08:01:38,475 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-19 08:01:38,475 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-19 08:01:38,475 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-19 08:01:38,476 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-19 08:01:38,476 INFO L133 SettingsManager]: * Congruence Domain=false [2018-09-19 08:01:38,476 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-19 08:01:38,476 INFO L133 SettingsManager]: * Abstract domain=OctagonDomain [2018-09-19 08:01:38,476 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-19 08:01:38,477 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-19 08:01:38,477 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-09-19 08:01:38,477 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-19 08:01:38,478 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-19 08:01:38,479 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-19 08:01:38,479 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-19 08:01:38,480 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-19 08:01:38,480 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-19 08:01:38,480 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-19 08:01:38,480 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-19 08:01:38,481 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-19 08:01:38,482 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-19 08:01:38,482 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-19 08:01:38,482 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-19 08:01:38,482 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-19 08:01:38,483 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-19 08:01:38,483 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-19 08:01:38,483 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-19 08:01:38,483 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-19 08:01:38,483 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-09-19 08:01:38,484 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-19 08:01:38,484 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-19 08:01:38,484 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-19 08:01:38,484 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-19 08:01:38,485 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-19 08:01:38,554 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-19 08:01:38,571 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-19 08:01:38,577 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-19 08:01:38,579 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-19 08:01:38,580 INFO L276 PluginConnector]: CDTParser initialized [2018-09-19 08:01:38,581 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-lit/css2003_true-unreach-call_true-termination.c.i [2018-09-19 08:01:38,944 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eca72b64f/2720c6d00ec1433b87c3ce8582988f19/FLAGc04b4c0e5 [2018-09-19 08:01:39,118 INFO L277 CDTParser]: Found 1 translation units. [2018-09-19 08:01:39,119 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-lit/css2003_true-unreach-call_true-termination.c.i [2018-09-19 08:01:39,126 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eca72b64f/2720c6d00ec1433b87c3ce8582988f19/FLAGc04b4c0e5 [2018-09-19 08:01:39,143 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eca72b64f/2720c6d00ec1433b87c3ce8582988f19 [2018-09-19 08:01:39,153 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-19 08:01:39,156 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-19 08:01:39,158 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-19 08:01:39,158 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-19 08:01:39,165 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-19 08:01:39,166 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 08:01:39" (1/1) ... [2018-09-19 08:01:39,169 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@483cf7d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 08:01:39, skipping insertion in model container [2018-09-19 08:01:39,169 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 08:01:39" (1/1) ... [2018-09-19 08:01:39,181 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-19 08:01:39,383 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 08:01:39,402 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-19 08:01:39,408 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 08:01:39,421 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 08:01:39 WrapperNode [2018-09-19 08:01:39,422 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-19 08:01:39,423 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-19 08:01:39,423 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-19 08:01:39,423 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-19 08:01:39,433 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 08:01:39" (1/1) ... [2018-09-19 08:01:39,440 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 08:01:39" (1/1) ... [2018-09-19 08:01:39,447 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-19 08:01:39,447 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-19 08:01:39,447 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-19 08:01:39,448 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-19 08:01:39,459 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 08:01:39" (1/1) ... [2018-09-19 08:01:39,459 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 08:01:39" (1/1) ... [2018-09-19 08:01:39,460 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 08:01:39" (1/1) ... [2018-09-19 08:01:39,460 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 08:01:39" (1/1) ... [2018-09-19 08:01:39,462 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 08:01:39" (1/1) ... [2018-09-19 08:01:39,467 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 08:01:39" (1/1) ... [2018-09-19 08:01:39,469 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 08:01:39" (1/1) ... [2018-09-19 08:01:39,470 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-19 08:01:39,471 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-19 08:01:39,471 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-19 08:01:39,472 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-19 08:01:39,473 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 08:01:39" (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 [2018-09-19 08:01:39,548 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-19 08:01:39,549 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-19 08:01:39,549 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-19 08:01:39,549 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-19 08:01:39,549 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-19 08:01:39,550 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-19 08:01:39,550 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-09-19 08:01:39,550 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-09-19 08:01:39,874 INFO L356 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-19 08:01:39,875 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 08:01:39 BoogieIcfgContainer [2018-09-19 08:01:39,875 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-19 08:01:39,876 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-19 08:01:39,876 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-19 08:01:39,880 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-19 08:01:39,880 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.09 08:01:39" (1/3) ... [2018-09-19 08:01:39,881 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1115aeaa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 08:01:39, skipping insertion in model container [2018-09-19 08:01:39,881 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 08:01:39" (2/3) ... [2018-09-19 08:01:39,882 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1115aeaa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 08:01:39, skipping insertion in model container [2018-09-19 08:01:39,882 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 08:01:39" (3/3) ... [2018-09-19 08:01:39,884 INFO L112 eAbstractionObserver]: Analyzing ICFG css2003_true-unreach-call_true-termination.c.i [2018-09-19 08:01:39,895 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-19 08:01:39,904 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-19 08:01:39,998 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-19 08:01:39,999 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-19 08:01:40,000 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-19 08:01:40,000 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-19 08:01:40,000 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-19 08:01:40,000 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-19 08:01:40,000 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-19 08:01:40,001 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-19 08:01:40,001 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-19 08:01:40,045 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states. [2018-09-19 08:01:40,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-09-19 08:01:40,053 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 08:01:40,054 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 08:01:40,055 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 08:01:40,061 INFO L82 PathProgramCache]: Analyzing trace with hash -1333459013, now seen corresponding path program 1 times [2018-09-19 08:01:40,077 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 08:01:40,079 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 13 with the following transitions: [2018-09-19 08:01:40,081 INFO L202 CegarAbsIntRunner]: [0], [4], [8], [12], [18], [25], [28], [30], [36], [37], [38], [40] [2018-09-19 08:01:40,137 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 08:01:40,137 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 08:01:40,220 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 08:01:40,226 INFO L272 AbstractInterpreter]: Visited 11 different actions 11 times. Never merged. Never widened. Never found a fixpoint. Largest state had 4 variables. [2018-09-19 08:01:40,261 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 08:01:40,328 INFO L232 lantSequenceWeakener]: Weakened 2 states. On average, predicates are now at 41.67% of their original sizes. [2018-09-19 08:01:40,328 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 08:01:40,546 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 08:01:40,548 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 08:01:40,548 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-09-19 08:01:40,549 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 08:01:40,553 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-09-19 08:01:40,558 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-09-19 08:01:40,558 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2018-09-19 08:01:40,561 INFO L87 Difference]: Start difference. First operand 20 states. Second operand 7 states. [2018-09-19 08:01:40,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 08:01:40,950 INFO L93 Difference]: Finished difference Result 45 states and 57 transitions. [2018-09-19 08:01:40,951 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-19 08:01:40,953 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 12 [2018-09-19 08:01:40,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 08:01:40,962 INFO L225 Difference]: With dead ends: 45 [2018-09-19 08:01:40,962 INFO L226 Difference]: Without dead ends: 24 [2018-09-19 08:01:40,967 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2018-09-19 08:01:40,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2018-09-19 08:01:41,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 22. [2018-09-19 08:01:41,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2018-09-19 08:01:41,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 22 transitions. [2018-09-19 08:01:41,016 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 22 transitions. Word has length 12 [2018-09-19 08:01:41,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 08:01:41,018 INFO L480 AbstractCegarLoop]: Abstraction has 22 states and 22 transitions. [2018-09-19 08:01:41,018 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-09-19 08:01:41,018 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 22 transitions. [2018-09-19 08:01:41,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-09-19 08:01:41,019 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 08:01:41,020 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 08:01:41,020 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 08:01:41,020 INFO L82 PathProgramCache]: Analyzing trace with hash 615958375, now seen corresponding path program 1 times [2018-09-19 08:01:41,021 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 08:01:41,021 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 20 with the following transitions: [2018-09-19 08:01:41,021 INFO L202 CegarAbsIntRunner]: [0], [4], [8], [12], [18], [25], [28], [30], [33], [35], [36], [37], [38], [40], [41] [2018-09-19 08:01:41,023 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 08:01:41,024 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 08:01:41,097 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 08:01:41,097 INFO L272 AbstractInterpreter]: Visited 14 different actions 118 times. Merged at 3 different actions 39 times. Widened at 1 different actions 9 times. Found 1 fixpoints after 1 different actions. Largest state had 4 variables. [2018-09-19 08:01:41,105 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 08:01:41,134 INFO L232 lantSequenceWeakener]: Weakened 5 states. On average, predicates are now at 66.67% of their original sizes. [2018-09-19 08:01:41,134 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 08:01:41,410 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 08:01:41,411 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 08:01:41,411 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-09-19 08:01:41,411 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 08:01:41,412 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-09-19 08:01:41,413 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-09-19 08:01:41,413 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2018-09-19 08:01:41,414 INFO L87 Difference]: Start difference. First operand 22 states and 22 transitions. Second operand 8 states. [2018-09-19 08:01:41,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 08:01:41,722 INFO L93 Difference]: Finished difference Result 22 states and 22 transitions. [2018-09-19 08:01:41,723 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-19 08:01:41,723 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 19 [2018-09-19 08:01:41,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 08:01:41,724 INFO L225 Difference]: With dead ends: 22 [2018-09-19 08:01:41,724 INFO L226 Difference]: Without dead ends: 0 [2018-09-19 08:01:41,726 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 21 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2018-09-19 08:01:41,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-09-19 08:01:41,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-09-19 08:01:41,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-09-19 08:01:41,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-09-19 08:01:41,727 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 19 [2018-09-19 08:01:41,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 08:01:41,727 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-09-19 08:01:41,727 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-09-19 08:01:41,728 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-09-19 08:01:41,728 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-09-19 08:01:41,733 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-09-19 08:01:42,297 WARN L178 SmtUtils]: Spent 371.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 25 [2018-09-19 08:01:42,527 WARN L178 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 16 [2018-09-19 08:01:42,530 INFO L429 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-09-19 08:01:42,530 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-09-19 08:01:42,530 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-09-19 08:01:42,531 INFO L429 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-09-19 08:01:42,531 INFO L429 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-09-19 08:01:42,531 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-09-19 08:01:42,531 INFO L429 ceAbstractionStarter]: At program point mainENTRY(lines 10 23) the Hoare annotation is: true [2018-09-19 08:01:42,531 INFO L426 ceAbstractionStarter]: For program point mainEXIT(lines 10 23) no Hoare annotation was computed. [2018-09-19 08:01:42,532 INFO L422 ceAbstractionStarter]: At program point L20(line 20) the Hoare annotation is: (let ((.cse0 (+ main_~i~0 main_~k~0)) (.cse1 (* 2 main_~i~0))) (and (<= .cse0 2) (<= 1 .cse0) (<= .cse1 2000000) (<= (* 2 main_~j~0) 4) (<= 4 .cse1))) [2018-09-19 08:01:42,532 INFO L422 ceAbstractionStarter]: At program point L20-1(lines 16 21) the Hoare annotation is: (let ((.cse2 (* 2 main_~j~0))) (or (let ((.cse0 (+ main_~i~0 main_~k~0)) (.cse1 (* 2 main_~i~0))) (and (<= 1 .cse0) (<= .cse1 2000000) (<= .cse2 4) (<= .cse0 2) (<= 4 .cse1))) (and (<= main_~i~0 main_~j~0) (<= 2 (+ main_~i~0 main_~j~0)) (<= 1 (+ main_~j~0 main_~k~0)) (<= .cse2 2) (<= main_~k~0 main_~j~0)))) [2018-09-19 08:01:42,532 INFO L426 ceAbstractionStarter]: For program point L15(line 15) no Hoare annotation was computed. [2018-09-19 08:01:42,535 INFO L426 ceAbstractionStarter]: For program point L16-1(lines 16 21) no Hoare annotation was computed. [2018-09-19 08:01:42,535 INFO L426 ceAbstractionStarter]: For program point L16-3(lines 16 21) no Hoare annotation was computed. [2018-09-19 08:01:42,535 INFO L426 ceAbstractionStarter]: For program point mainFINAL(lines 10 23) no Hoare annotation was computed. [2018-09-19 08:01:42,535 INFO L429 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(lines 3 8) the Hoare annotation is: true [2018-09-19 08:01:42,535 INFO L426 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(lines 3 8) no Hoare annotation was computed. [2018-09-19 08:01:42,535 INFO L426 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2018-09-19 08:01:42,536 INFO L426 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2018-09-19 08:01:42,536 INFO L426 ceAbstractionStarter]: For program point L4(lines 4 6) no Hoare annotation was computed. [2018-09-19 08:01:42,536 INFO L426 ceAbstractionStarter]: For program point L4-2(lines 3 8) no Hoare annotation was computed. [2018-09-19 08:01:42,551 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.09 08:01:42 BoogieIcfgContainer [2018-09-19 08:01:42,551 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-19 08:01:42,553 INFO L168 Benchmark]: Toolchain (without parser) took 3399.45 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 764.9 MB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -691.4 MB). Peak memory consumption was 73.5 MB. Max. memory is 7.1 GB. [2018-09-19 08:01:42,556 INFO L168 Benchmark]: CDTParser took 0.21 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. [2018-09-19 08:01:42,556 INFO L168 Benchmark]: CACSL2BoogieTranslator took 264.57 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. [2018-09-19 08:01:42,558 INFO L168 Benchmark]: Boogie Procedure Inliner took 24.43 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. [2018-09-19 08:01:42,559 INFO L168 Benchmark]: Boogie Preprocessor took 23.57 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. [2018-09-19 08:01:42,559 INFO L168 Benchmark]: RCFGBuilder took 404.17 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 764.9 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -816.2 MB). Peak memory consumption was 26.6 MB. Max. memory is 7.1 GB. [2018-09-19 08:01:42,561 INFO L168 Benchmark]: TraceAbstraction took 2674.84 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: 114.2 MB). Peak memory consumption was 114.2 MB. Max. memory is 7.1 GB. [2018-09-19 08:01:42,568 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 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 264.57 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 24.43 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 23.57 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 404.17 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 764.9 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -816.2 MB). Peak memory consumption was 26.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2674.84 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: 114.2 MB). Peak memory consumption was 114.2 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: 16]: Loop Invariant Derived loop invariant: ((((1 <= i + k && 2 * i <= 2000000) && 2 * j <= 4) && i + k <= 2) && 4 <= 2 * i) || ((((i <= j && 2 <= i + j) && 1 <= j + k) && 2 * j <= 2) && k <= j) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 20 locations, 1 error locations. SAFE Result, 2.5s OverallTime, 2 OverallIterations, 2 TraceHistogramMax, 0.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.7s HoareAnnotationTime, HoareTripleCheckerStatistics: 26 SDtfs, 19 SDslu, 97 SDs, 0 SdLazy, 63 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 4 DeclaredPredicates, 33 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=22occurred in iteration=1, 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, 0.9224137931034483 AbsIntWeakeningRatio, 0.41379310344827586 AbsIntAvgWeakeningVarsNumRemoved, 1.6206896551724137 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 9 PreInvPairs, 13 NumberOfFragments, 80 HoareAnnotationTreeSize, 9 FomulaSimplifications, 84 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 7 FomulaSimplificationsInter, 227 FormulaSimplificationTreeSizeReductionInter, 0.6s 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/css2003_true-unreach-call_true-termination.c.i_svcomp-Reach-64bit-ToothlessTaipan_OCT-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-19_08-01-42-602.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/css2003_true-unreach-call_true-termination.c.i_svcomp-Reach-64bit-ToothlessTaipan_OCT-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-19_08-01-42-602.csv Received shutdown request...