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/hhk2008_true-unreach-call_true-termination.c.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-69f5bdd-m [2018-09-19 08:01:40,359 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-19 08:01:40,361 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-19 08:01:40,375 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-19 08:01:40,375 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-19 08:01:40,376 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-19 08:01:40,377 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-19 08:01:40,380 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-19 08:01:40,383 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-19 08:01:40,384 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-19 08:01:40,392 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-19 08:01:40,393 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-19 08:01:40,394 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-19 08:01:40,395 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-19 08:01:40,399 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-19 08:01:40,400 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-19 08:01:40,404 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-19 08:01:40,406 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-19 08:01:40,413 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-19 08:01:40,415 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-19 08:01:40,416 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-19 08:01:40,417 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-19 08:01:40,419 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-19 08:01:40,420 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-19 08:01:40,420 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-19 08:01:40,421 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-19 08:01:40,422 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-19 08:01:40,422 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-19 08:01:40,423 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-19 08:01:40,424 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-19 08:01:40,424 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-19 08:01:40,425 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-19 08:01:40,425 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-19 08:01:40,426 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-19 08:01:40,427 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-19 08:01:40,428 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-19 08:01:40,428 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 08:01:40,450 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-19 08:01:40,450 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-19 08:01:40,451 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-19 08:01:40,451 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-19 08:01:40,452 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-19 08:01:40,452 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-19 08:01:40,452 INFO L133 SettingsManager]: * Congruence Domain=false [2018-09-19 08:01:40,452 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-19 08:01:40,453 INFO L133 SettingsManager]: * Abstract domain=OctagonDomain [2018-09-19 08:01:40,453 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-19 08:01:40,453 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-19 08:01:40,453 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-09-19 08:01:40,453 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-19 08:01:40,454 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-19 08:01:40,455 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-19 08:01:40,455 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-19 08:01:40,455 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-19 08:01:40,455 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-19 08:01:40,455 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-19 08:01:40,455 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-19 08:01:40,456 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-19 08:01:40,456 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-19 08:01:40,456 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-19 08:01:40,456 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-19 08:01:40,457 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-19 08:01:40,457 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-19 08:01:40,457 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-19 08:01:40,457 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-19 08:01:40,459 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-19 08:01:40,459 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-09-19 08:01:40,459 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-19 08:01:40,459 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-19 08:01:40,460 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-19 08:01:40,460 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-19 08:01:40,460 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-19 08:01:40,524 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-19 08:01:40,541 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-19 08:01:40,546 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-19 08:01:40,548 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-19 08:01:40,549 INFO L276 PluginConnector]: CDTParser initialized [2018-09-19 08:01:40,550 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-lit/hhk2008_true-unreach-call_true-termination.c.i [2018-09-19 08:01:40,944 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b2502aeda/d28eb0cb33864e548023751027f4e608/FLAGebf419efd [2018-09-19 08:01:41,098 INFO L277 CDTParser]: Found 1 translation units. [2018-09-19 08:01:41,099 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-lit/hhk2008_true-unreach-call_true-termination.c.i [2018-09-19 08:01:41,104 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b2502aeda/d28eb0cb33864e548023751027f4e608/FLAGebf419efd [2018-09-19 08:01:41,119 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b2502aeda/d28eb0cb33864e548023751027f4e608 [2018-09-19 08:01:41,132 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-19 08:01:41,138 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-19 08:01:41,139 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-19 08:01:41,139 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-19 08:01:41,147 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-19 08:01:41,148 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 08:01:41" (1/1) ... [2018-09-19 08:01:41,151 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@58f15d96 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 08:01:41, skipping insertion in model container [2018-09-19 08:01:41,152 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 08:01:41" (1/1) ... [2018-09-19 08:01:41,164 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-19 08:01:41,380 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 08:01:41,399 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-19 08:01:41,404 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 08:01:41,419 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 08:01:41 WrapperNode [2018-09-19 08:01:41,419 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-19 08:01:41,420 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-19 08:01:41,420 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-19 08:01:41,420 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-19 08:01:41,431 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 08:01:41" (1/1) ... [2018-09-19 08:01:41,439 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 08:01:41" (1/1) ... [2018-09-19 08:01:41,446 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-19 08:01:41,446 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-19 08:01:41,446 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-19 08:01:41,447 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-19 08:01:41,458 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 08:01:41" (1/1) ... [2018-09-19 08:01:41,458 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 08:01:41" (1/1) ... [2018-09-19 08:01:41,459 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 08:01:41" (1/1) ... [2018-09-19 08:01:41,459 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 08:01:41" (1/1) ... [2018-09-19 08:01:41,461 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 08:01:41" (1/1) ... [2018-09-19 08:01:41,469 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 08:01:41" (1/1) ... [2018-09-19 08:01:41,471 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 08:01:41" (1/1) ... [2018-09-19 08:01:41,472 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-19 08:01:41,478 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-19 08:01:41,478 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-19 08:01:41,478 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-19 08:01:41,480 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 08:01:41" (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 08:01:41,556 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-19 08:01:41,556 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-19 08:01:41,556 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-19 08:01:41,556 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-19 08:01:41,556 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-19 08:01:41,557 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-19 08:01:41,557 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-09-19 08:01:41,557 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-09-19 08:01:41,905 INFO L356 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-19 08:01:41,905 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 08:01:41 BoogieIcfgContainer [2018-09-19 08:01:41,906 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-19 08:01:41,907 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-19 08:01:41,907 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-19 08:01:41,910 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-19 08:01:41,910 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.09 08:01:41" (1/3) ... [2018-09-19 08:01:41,911 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6aeb4223 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 08:01:41, skipping insertion in model container [2018-09-19 08:01:41,911 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 08:01:41" (2/3) ... [2018-09-19 08:01:41,912 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6aeb4223 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 08:01:41, skipping insertion in model container [2018-09-19 08:01:41,912 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 08:01:41" (3/3) ... [2018-09-19 08:01:41,914 INFO L112 eAbstractionObserver]: Analyzing ICFG hhk2008_true-unreach-call_true-termination.c.i [2018-09-19 08:01:41,923 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-19 08:01:41,934 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-19 08:01:41,989 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-19 08:01:41,990 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-19 08:01:41,990 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-19 08:01:41,990 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-19 08:01:41,990 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-19 08:01:41,990 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-19 08:01:41,990 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-19 08:01:41,991 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-19 08:01:41,991 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-19 08:01:42,009 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states. [2018-09-19 08:01:42,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-09-19 08:01:42,016 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 08:01:42,017 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 08:01:42,019 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 08:01:42,025 INFO L82 PathProgramCache]: Analyzing trace with hash -237401155, now seen corresponding path program 1 times [2018-09-19 08:01:42,028 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 08:01:42,029 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 13 with the following transitions: [2018-09-19 08:01:42,031 INFO L202 CegarAbsIntRunner]: [0], [4], [8], [12], [24], [29], [32], [34], [40], [41], [42], [44] [2018-09-19 08:01:42,083 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 08:01:42,083 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 08:01:42,136 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 08:01:42,139 INFO L272 AbstractInterpreter]: Visited 8 different actions 8 times. Never merged. Never widened. Never found a fixpoint. Largest state had 6 variables. [2018-09-19 08:01:42,193 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 08:01:42,250 INFO L232 lantSequenceWeakener]: Weakened 1 states. On average, predicates are now at 25% of their original sizes. [2018-09-19 08:01:42,250 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 08:01:42,423 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 08:01:42,426 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 08:01:42,426 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-09-19 08:01:42,427 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 08:01:42,433 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-19 08:01:42,439 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-19 08:01:42,440 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-09-19 08:01:42,442 INFO L87 Difference]: Start difference. First operand 21 states. Second operand 5 states. [2018-09-19 08:01:42,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 08:01:42,640 INFO L93 Difference]: Finished difference Result 41 states and 50 transitions. [2018-09-19 08:01:42,640 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-09-19 08:01:42,642 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2018-09-19 08:01:42,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 08:01:42,653 INFO L225 Difference]: With dead ends: 41 [2018-09-19 08:01:42,653 INFO L226 Difference]: Without dead ends: 17 [2018-09-19 08:01:42,658 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-09-19 08:01:42,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2018-09-19 08:01:42,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 14. [2018-09-19 08:01:42,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2018-09-19 08:01:42,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2018-09-19 08:01:42,707 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 12 [2018-09-19 08:01:42,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 08:01:42,708 INFO L480 AbstractCegarLoop]: Abstraction has 14 states and 14 transitions. [2018-09-19 08:01:42,708 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-19 08:01:42,708 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2018-09-19 08:01:42,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-09-19 08:01:42,709 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 08:01:42,709 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 08:01:42,710 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 08:01:42,710 INFO L82 PathProgramCache]: Analyzing trace with hash 979745029, now seen corresponding path program 1 times [2018-09-19 08:01:42,710 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 08:01:42,711 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 14 with the following transitions: [2018-09-19 08:01:42,711 INFO L202 CegarAbsIntRunner]: [0], [4], [8], [12], [16], [20], [29], [32], [34], [40], [41], [42], [44] [2018-09-19 08:01:42,713 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 08:01:42,714 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 08:01:42,755 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-09-19 08:01:42,755 INFO L272 AbstractInterpreter]: Visited 13 different actions 13 times. Never merged. Never widened. Never found a fixpoint. Largest state had 6 variables. [2018-09-19 08:01:42,772 INFO L443 BasicCegarLoop]: Counterexample might be feasible [2018-09-19 08:01:42,791 WARN L209 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2018-09-19 08:01:42,791 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.09 08:01:42 BoogieIcfgContainer [2018-09-19 08:01:42,791 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-19 08:01:42,792 INFO L168 Benchmark]: Toolchain (without parser) took 1659.69 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 726.7 MB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -735.3 MB). There was no memory consumed. Max. memory is 7.1 GB. [2018-09-19 08:01:42,794 INFO L168 Benchmark]: CDTParser took 0.22 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 08:01:42,795 INFO L168 Benchmark]: CACSL2BoogieTranslator took 280.69 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 08:01:42,796 INFO L168 Benchmark]: Boogie Procedure Inliner took 26.02 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 08:01:42,797 INFO L168 Benchmark]: Boogie Preprocessor took 31.36 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 08:01:42,797 INFO L168 Benchmark]: RCFGBuilder took 427.65 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 726.7 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -780.9 MB). Peak memory consumption was 26.8 MB. Max. memory is 7.1 GB. [2018-09-19 08:01:42,798 INFO L168 Benchmark]: TraceAbstraction took 884.91 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: 34.9 MB). Peak memory consumption was 34.9 MB. Max. memory is 7.1 GB. [2018-09-19 08:01:42,803 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 280.69 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 26.02 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 31.36 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 427.65 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 726.7 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -780.9 MB). Peak memory consumption was 26.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 884.91 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: 34.9 MB). Peak memory consumption was 34.9 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 a = __VERIFIER_nondet_int(); [L12] int b = __VERIFIER_nondet_int(); [L13] int res, cnt; [L14] COND FALSE !(!(a <= 1000000)) [L15] COND FALSE !(!(0 <= b && b <= 1000000)) [L16] res = a [L17] cnt = b [L18] COND FALSE !(cnt > 0) [L22] CALL __VERIFIER_assert(res == a + b) [L4] COND TRUE !(cond) [L5] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 21 locations, 1 error locations. UNKNOWN Result, 0.8s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 23 SDtfs, 26 SDslu, 19 SDs, 0 SdLazy, 11 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=21occurred 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, 1 AbstIntStrong, 0.9696969696969698 AbsIntWeakeningRatio, 0.7272727272727273 AbsIntAvgWeakeningVarsNumRemoved, 1.2727272727272727 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 3 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/hhk2008_true-unreach-call_true-termination.c.i_svcomp-Reach-64bit-ToothlessTaipan_OCT-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-19_08-01-42-816.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/hhk2008_true-unreach-call_true-termination.c.i_svcomp-Reach-64bit-ToothlessTaipan_OCT-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-19_08-01-42-816.csv Received shutdown request...