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/loop-lit/gsv2008_true-unreach-call_true-termination.c.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-69f5bdd-m [2018-09-19 11:36:28,385 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-19 11:36:28,387 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-19 11:36:28,399 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-19 11:36:28,399 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-19 11:36:28,400 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-19 11:36:28,401 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-19 11:36:28,403 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-19 11:36:28,405 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-19 11:36:28,406 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-19 11:36:28,407 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-19 11:36:28,407 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-19 11:36:28,408 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-19 11:36:28,409 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-19 11:36:28,411 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-19 11:36:28,412 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-19 11:36:28,412 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-19 11:36:28,415 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-19 11:36:28,417 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-19 11:36:28,419 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-19 11:36:28,420 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-19 11:36:28,421 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-19 11:36:28,424 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-19 11:36:28,424 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-19 11:36:28,425 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-19 11:36:28,426 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-19 11:36:28,427 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-19 11:36:28,428 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-19 11:36:28,428 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-19 11:36:28,430 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-19 11:36:28,430 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-19 11:36:28,431 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-09-19 11:36:28,433 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 [2018-09-19 11:36:28,454 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-19 11:36:28,454 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-19 11:36:28,455 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-19 11:36:28,456 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-19 11:36:28,456 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-19 11:36:28,456 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-19 11:36:28,456 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-19 11:36:28,456 INFO L133 SettingsManager]: * Octagon Domain=false [2018-09-19 11:36:28,456 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-09-19 11:36:28,457 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-19 11:36:28,457 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-19 11:36:28,457 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-09-19 11:36:28,458 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-19 11:36:28,458 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-19 11:36:28,458 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-19 11:36:28,458 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-19 11:36:28,458 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-19 11:36:28,459 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-19 11:36:28,459 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-19 11:36:28,459 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-19 11:36:28,459 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-19 11:36:28,459 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-19 11:36:28,460 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-19 11:36:28,460 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-19 11:36:28,460 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-19 11:36:28,460 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-19 11:36:28,460 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-19 11:36:28,461 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-19 11:36:28,461 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-09-19 11:36:28,461 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-19 11:36:28,461 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-19 11:36:28,461 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-19 11:36:28,461 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-19 11:36:28,462 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-19 11:36:28,508 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-19 11:36:28,521 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-19 11:36:28,525 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-19 11:36:28,527 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-19 11:36:28,527 INFO L276 PluginConnector]: CDTParser initialized [2018-09-19 11:36:28,528 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-lit/gsv2008_true-unreach-call_true-termination.c.i [2018-09-19 11:36:28,867 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1760ba622/17d59a81ff5b40bbac64e3b86ea59a06/FLAG190a83b70 [2018-09-19 11:36:29,043 INFO L277 CDTParser]: Found 1 translation units. [2018-09-19 11:36:29,045 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-lit/gsv2008_true-unreach-call_true-termination.c.i [2018-09-19 11:36:29,054 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1760ba622/17d59a81ff5b40bbac64e3b86ea59a06/FLAG190a83b70 [2018-09-19 11:36:29,077 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1760ba622/17d59a81ff5b40bbac64e3b86ea59a06 [2018-09-19 11:36:29,090 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-19 11:36:29,094 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-19 11:36:29,095 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-19 11:36:29,095 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-19 11:36:29,105 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-19 11:36:29,107 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 11:36:29" (1/1) ... [2018-09-19 11:36:29,111 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f41df51 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 11:36:29, skipping insertion in model container [2018-09-19 11:36:29,111 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 11:36:29" (1/1) ... [2018-09-19 11:36:29,124 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-19 11:36:29,355 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 11:36:29,374 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-19 11:36:29,380 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 11:36:29,393 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 11:36:29 WrapperNode [2018-09-19 11:36:29,394 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-19 11:36:29,395 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-19 11:36:29,395 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-19 11:36:29,395 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-19 11:36:29,405 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 11:36:29" (1/1) ... [2018-09-19 11:36:29,411 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 11:36:29" (1/1) ... [2018-09-19 11:36:29,419 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-19 11:36:29,420 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-19 11:36:29,420 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-19 11:36:29,420 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-19 11:36:29,430 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 11:36:29" (1/1) ... [2018-09-19 11:36:29,431 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 11:36:29" (1/1) ... [2018-09-19 11:36:29,432 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 11:36:29" (1/1) ... [2018-09-19 11:36:29,432 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 11:36:29" (1/1) ... [2018-09-19 11:36:29,433 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 11:36:29" (1/1) ... [2018-09-19 11:36:29,441 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 11:36:29" (1/1) ... [2018-09-19 11:36:29,442 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 11:36:29" (1/1) ... [2018-09-19 11:36:29,443 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-19 11:36:29,444 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-19 11:36:29,444 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-19 11:36:29,445 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-19 11:36:29,446 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 11:36:29" (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 11:36:29,511 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-19 11:36:29,511 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-19 11:36:29,511 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-19 11:36:29,511 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-19 11:36:29,511 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-19 11:36:29,512 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-19 11:36:29,512 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-09-19 11:36:29,512 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-09-19 11:36:29,953 INFO L356 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-19 11:36:29,954 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 11:36:29 BoogieIcfgContainer [2018-09-19 11:36:29,954 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-19 11:36:29,955 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-19 11:36:29,955 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-19 11:36:29,958 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-19 11:36:29,959 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.09 11:36:29" (1/3) ... [2018-09-19 11:36:29,960 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43c3d92a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 11:36:29, skipping insertion in model container [2018-09-19 11:36:29,960 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 11:36:29" (2/3) ... [2018-09-19 11:36:29,960 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43c3d92a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 11:36:29, skipping insertion in model container [2018-09-19 11:36:29,960 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 11:36:29" (3/3) ... [2018-09-19 11:36:29,962 INFO L112 eAbstractionObserver]: Analyzing ICFG gsv2008_true-unreach-call_true-termination.c.i [2018-09-19 11:36:29,976 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-19 11:36:29,985 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-19 11:36:30,065 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-19 11:36:30,069 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-19 11:36:30,069 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-19 11:36:30,070 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-19 11:36:30,070 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-19 11:36:30,070 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-19 11:36:30,070 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-19 11:36:30,070 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-19 11:36:30,071 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-19 11:36:30,103 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states. [2018-09-19 11:36:30,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-09-19 11:36:30,118 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 11:36:30,120 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 11:36:30,121 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 11:36:30,125 INFO L82 PathProgramCache]: Analyzing trace with hash -1281911547, now seen corresponding path program 1 times [2018-09-19 11:36:30,128 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 11:36:30,128 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 12 with the following transitions: [2018-09-19 11:36:30,130 INFO L202 CegarAbsIntRunner]: [0], [4], [8], [20], [25], [28], [30], [36], [37], [38], [40] [2018-09-19 11:36:30,164 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-19 11:36:30,165 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 11:36:30,247 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 11:36:30,249 INFO L272 AbstractInterpreter]: Visited 7 different actions 7 times. Never merged. Never widened. Never found a fixpoint. Largest state had 3 variables. [2018-09-19 11:36:30,264 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 11:36:30,316 INFO L232 lantSequenceWeakener]: Weakened 2 states. On average, predicates are now at 50% of their original sizes. [2018-09-19 11:36:30,317 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 11:36:30,368 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 11:36:30,369 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 11:36:30,370 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-09-19 11:36:30,370 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 11:36:30,376 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-09-19 11:36:30,384 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-09-19 11:36:30,384 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-09-19 11:36:30,388 INFO L87 Difference]: Start difference. First operand 20 states. Second operand 4 states. [2018-09-19 11:36:30,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 11:36:30,484 INFO L93 Difference]: Finished difference Result 44 states and 56 transitions. [2018-09-19 11:36:30,485 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-09-19 11:36:30,486 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2018-09-19 11:36:30,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 11:36:30,496 INFO L225 Difference]: With dead ends: 44 [2018-09-19 11:36:30,497 INFO L226 Difference]: Without dead ends: 19 [2018-09-19 11:36:30,501 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 10 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-09-19 11:36:30,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2018-09-19 11:36:30,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 13. [2018-09-19 11:36:30,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2018-09-19 11:36:30,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2018-09-19 11:36:30,537 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 11 [2018-09-19 11:36:30,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 11:36:30,538 INFO L480 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions. [2018-09-19 11:36:30,538 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-09-19 11:36:30,540 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2018-09-19 11:36:30,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-09-19 11:36:30,541 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 11:36:30,542 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 11:36:30,542 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 11:36:30,543 INFO L82 PathProgramCache]: Analyzing trace with hash -1335306055, now seen corresponding path program 1 times [2018-09-19 11:36:30,544 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 11:36:30,544 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 13 with the following transitions: [2018-09-19 11:36:30,544 INFO L202 CegarAbsIntRunner]: [0], [4], [8], [12], [16], [25], [28], [30], [36], [37], [38], [40] [2018-09-19 11:36:30,546 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-19 11:36:30,546 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 11:36:30,554 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 11:36:30,555 INFO L272 AbstractInterpreter]: Visited 8 different actions 8 times. Never merged. Never widened. Never found a fixpoint. Largest state had 3 variables. [2018-09-19 11:36:30,575 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 11:36:30,596 INFO L224 lantSequenceWeakener]: Could never weaken! [2018-09-19 11:36:30,597 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 11:36:30,619 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 11:36:30,619 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 11:36:30,619 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-09-19 11:36:30,619 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 11:36:30,620 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-09-19 11:36:30,621 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-09-19 11:36:30,621 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-09-19 11:36:30,621 INFO L87 Difference]: Start difference. First operand 13 states and 13 transitions. Second operand 4 states. [2018-09-19 11:36:30,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 11:36:30,653 INFO L93 Difference]: Finished difference Result 20 states and 20 transitions. [2018-09-19 11:36:30,653 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-09-19 11:36:30,653 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2018-09-19 11:36:30,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 11:36:30,655 INFO L225 Difference]: With dead ends: 20 [2018-09-19 11:36:30,655 INFO L226 Difference]: Without dead ends: 15 [2018-09-19 11:36:30,657 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 11 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-09-19 11:36:30,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2018-09-19 11:36:30,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2018-09-19 11:36:30,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2018-09-19 11:36:30,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2018-09-19 11:36:30,662 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 12 [2018-09-19 11:36:30,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 11:36:30,662 INFO L480 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2018-09-19 11:36:30,662 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-09-19 11:36:30,662 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2018-09-19 11:36:30,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-09-19 11:36:30,663 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 11:36:30,663 INFO L376 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 11:36:30,664 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 11:36:30,664 INFO L82 PathProgramCache]: Analyzing trace with hash 1931535679, now seen corresponding path program 1 times [2018-09-19 11:36:30,664 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 11:36:30,664 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 15 with the following transitions: [2018-09-19 11:36:30,665 INFO L202 CegarAbsIntRunner]: [0], [4], [8], [12], [16], [18], [25], [28], [30], [36], [37], [38], [40] [2018-09-19 11:36:30,666 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-19 11:36:30,666 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 11:36:30,727 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-09-19 11:36:30,727 INFO L272 AbstractInterpreter]: Visited 13 different actions 58 times. Merged at 3 different actions 20 times. Widened at 1 different actions 3 times. Found 1 fixpoints after 1 different actions. Largest state had 4 variables. [2018-09-19 11:36:30,742 INFO L443 BasicCegarLoop]: Counterexample might be feasible [2018-09-19 11:36:30,759 WARN L209 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2018-09-19 11:36:30,759 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.09 11:36:30 BoogieIcfgContainer [2018-09-19 11:36:30,759 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-19 11:36:30,760 INFO L168 Benchmark]: Toolchain (without parser) took 1669.44 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 715.7 MB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -717.1 MB). There was no memory consumed. Max. memory is 7.1 GB. [2018-09-19 11:36:30,762 INFO L168 Benchmark]: CDTParser took 0.20 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 11:36:30,763 INFO L168 Benchmark]: CACSL2BoogieTranslator took 299.04 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 11:36:30,764 INFO L168 Benchmark]: Boogie Procedure Inliner took 24.81 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 11:36:30,765 INFO L168 Benchmark]: Boogie Preprocessor took 24.01 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 11:36:30,765 INFO L168 Benchmark]: RCFGBuilder took 509.92 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 715.7 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -772.2 MB). Peak memory consumption was 26.5 MB. Max. memory is 7.1 GB. [2018-09-19 11:36:30,766 INFO L168 Benchmark]: TraceAbstraction took 804.92 ms. Allocated memory is still 2.2 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 44.5 MB). Peak memory consumption was 44.5 MB. Max. memory is 7.1 GB. [2018-09-19 11:36:30,771 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 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 299.04 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 24.81 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 24.01 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 509.92 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 715.7 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -772.2 MB). Peak memory consumption was 26.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 804.92 ms. Allocated memory is still 2.2 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 44.5 MB). Peak memory consumption was 44.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 5]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: unable to decide satisfiability of path constraint. Possible FailurePath: [L11] int x,y; [L12] x = -50 [L13] y = __VERIFIER_nondet_int() [L14] COND FALSE !(!(-1000 < y && y < 1000000)) [L15] COND TRUE x < 0 [L16] x = x + y [L17] y++ [L17] y++ [L15] COND FALSE !(x < 0) [L19] CALL __VERIFIER_assert(y > 0) [L4] COND TRUE !(cond) [L5] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 20 locations, 1 error locations. UNKNOWN Result, 0.7s OverallTime, 3 OverallIterations, 2 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 33 SDtfs, 12 SDslu, 46 SDs, 0 SdLazy, 13 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 4 DeclaredPredicates, 21 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=20occurred 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, 3 AbstIntIterations, 2 AbstIntStrong, 1.0 AbsIntWeakeningRatio, 0.38095238095238093 AbsIntAvgWeakeningVarsNumRemoved, 0.09523809523809523 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 6 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: No data available, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/gsv2008_true-unreach-call_true-termination.c.i_svcomp-Reach-64bit-ToothlessTaipan_INTCON-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-19_11-36-30-785.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/gsv2008_true-unreach-call_true-termination.c.i_svcomp-Reach-64bit-ToothlessTaipan_INTCON-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-19_11-36-30-785.csv Received shutdown request...