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-invgen/fragtest_simple_true-unreach-call_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-3142e50-m [2018-09-11 19:40:29,528 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-11 19:40:29,530 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-11 19:40:29,548 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-11 19:40:29,548 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-11 19:40:29,549 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-11 19:40:29,553 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-11 19:40:29,555 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-11 19:40:29,557 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-11 19:40:29,558 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-11 19:40:29,560 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-11 19:40:29,561 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-11 19:40:29,562 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-11 19:40:29,562 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-11 19:40:29,567 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-11 19:40:29,568 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-11 19:40:29,569 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-11 19:40:29,570 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-11 19:40:29,573 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-11 19:40:29,574 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-11 19:40:29,575 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-11 19:40:29,576 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-11 19:40:29,582 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-11 19:40:29,582 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-11 19:40:29,582 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-11 19:40:29,584 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-11 19:40:29,586 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-11 19:40:29,586 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-11 19:40:29,587 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-11 19:40:29,591 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-11 19:40:29,591 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-11 19:40:29,593 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-11 19:40:29,593 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-11 19:40:29,593 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-11 19:40:29,595 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-11 19:40:29,596 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-11 19:40:29,596 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 [2018-09-11 19:40:29,611 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-11 19:40:29,611 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-11 19:40:29,612 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-11 19:40:29,612 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-11 19:40:29,612 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-11 19:40:29,612 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-11 19:40:29,613 INFO L133 SettingsManager]: * Congruence Domain=false [2018-09-11 19:40:29,613 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-11 19:40:29,613 INFO L133 SettingsManager]: * Abstract domain=OctagonDomain [2018-09-11 19:40:29,613 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-11 19:40:29,613 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-11 19:40:29,614 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-11 19:40:29,614 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-11 19:40:29,614 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-11 19:40:29,615 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-11 19:40:29,615 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-11 19:40:29,615 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-11 19:40:29,615 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-11 19:40:29,615 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-11 19:40:29,616 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-11 19:40:29,616 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-11 19:40:29,616 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-11 19:40:29,616 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-11 19:40:29,617 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-11 19:40:29,617 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-11 19:40:29,617 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-11 19:40:29,617 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-11 19:40:29,617 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-11 19:40:29,618 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-09-11 19:40:29,618 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-11 19:40:29,618 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-11 19:40:29,618 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-11 19:40:29,618 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-11 19:40:29,619 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-11 19:40:29,683 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-11 19:40:29,699 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-11 19:40:29,702 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-11 19:40:29,704 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-11 19:40:29,705 INFO L276 PluginConnector]: CDTParser initialized [2018-09-11 19:40:29,706 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-invgen/fragtest_simple_true-unreach-call_true-termination.i [2018-09-11 19:40:30,040 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ea5b57eef/3f220b0c558c4be3b4a41aeee2afb3de/FLAGb899f5ae2 [2018-09-11 19:40:30,203 INFO L276 CDTParser]: Found 1 translation units. [2018-09-11 19:40:30,204 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/fragtest_simple_true-unreach-call_true-termination.i [2018-09-11 19:40:30,212 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ea5b57eef/3f220b0c558c4be3b4a41aeee2afb3de/FLAGb899f5ae2 [2018-09-11 19:40:30,232 INFO L332 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ea5b57eef/3f220b0c558c4be3b4a41aeee2afb3de [2018-09-11 19:40:30,244 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-11 19:40:30,247 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-11 19:40:30,248 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-11 19:40:30,248 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-11 19:40:30,255 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-11 19:40:30,257 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.09 07:40:30" (1/1) ... [2018-09-11 19:40:30,259 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@8d63d6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 07:40:30, skipping insertion in model container [2018-09-11 19:40:30,260 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.09 07:40:30" (1/1) ... [2018-09-11 19:40:30,444 INFO L180 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-09-11 19:40:30,494 INFO L175 PostProcessor]: Settings: Checked method=main [2018-09-11 19:40:30,513 INFO L431 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-11 19:40:30,526 INFO L175 PostProcessor]: Settings: Checked method=main [2018-09-11 19:40:30,542 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 07:40:30 WrapperNode [2018-09-11 19:40:30,542 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-11 19:40:30,543 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-11 19:40:30,544 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-11 19:40:30,544 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-11 19:40:30,553 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 07:40:30" (1/1) ... [2018-09-11 19:40:30,560 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 07:40:30" (1/1) ... [2018-09-11 19:40:30,567 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-11 19:40:30,567 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-11 19:40:30,567 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-11 19:40:30,567 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-11 19:40:30,581 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 07:40:30" (1/1) ... [2018-09-11 19:40:30,581 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 07:40:30" (1/1) ... [2018-09-11 19:40:30,582 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 07:40:30" (1/1) ... [2018-09-11 19:40:30,582 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 07:40:30" (1/1) ... [2018-09-11 19:40:30,585 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 07:40:30" (1/1) ... [2018-09-11 19:40:30,598 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 07:40:30" (1/1) ... [2018-09-11 19:40:30,600 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 07:40:30" (1/1) ... [2018-09-11 19:40:30,607 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-11 19:40:30,609 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-11 19:40:30,609 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-11 19:40:30,610 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-11 19:40:30,611 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 07:40:30" (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 [2018-09-11 19:40:30,673 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-11 19:40:30,673 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-11 19:40:30,673 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-11 19:40:30,673 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-11 19:40:30,674 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-11 19:40:30,674 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-11 19:40:30,674 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loop_invgen_fragtest_simple_true_unreach_call_true_termination_i____VERIFIER_assert [2018-09-11 19:40:30,674 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loop_invgen_fragtest_simple_true_unreach_call_true_termination_i____VERIFIER_assert [2018-09-11 19:40:31,050 INFO L353 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-11 19:40:31,050 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.09 07:40:31 BoogieIcfgContainer [2018-09-11 19:40:31,050 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-11 19:40:31,051 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-11 19:40:31,052 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-11 19:40:31,055 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-11 19:40:31,055 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.09 07:40:30" (1/3) ... [2018-09-11 19:40:31,056 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a9923c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.09 07:40:31, skipping insertion in model container [2018-09-11 19:40:31,056 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 07:40:30" (2/3) ... [2018-09-11 19:40:31,057 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a9923c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.09 07:40:31, skipping insertion in model container [2018-09-11 19:40:31,057 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.09 07:40:31" (3/3) ... [2018-09-11 19:40:31,059 INFO L112 eAbstractionObserver]: Analyzing ICFG fragtest_simple_true-unreach-call_true-termination.i [2018-09-11 19:40:31,070 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-11 19:40:31,086 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-11 19:40:31,136 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-11 19:40:31,136 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-11 19:40:31,136 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-11 19:40:31,137 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-11 19:40:31,137 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-11 19:40:31,137 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-11 19:40:31,137 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-11 19:40:31,137 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-11 19:40:31,137 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-11 19:40:31,155 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states. [2018-09-11 19:40:31,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-09-11 19:40:31,161 INFO L368 BasicCegarLoop]: Found error trace [2018-09-11 19:40:31,162 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-11 19:40:31,163 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loop_invgen_fragtest_simple_true_unreach_call_true_termination_i____VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-11 19:40:31,169 INFO L82 PathProgramCache]: Analyzing trace with hash 62896836, now seen corresponding path program 1 times [2018-09-11 19:40:31,172 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-11 19:40:31,173 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 17 with the following transitions: [2018-09-11 19:40:31,175 INFO L202 CegarAbsIntRunner]: [0], [4], [17], [21], [25], [38], [40], [44], [50], [63], [66], [68], [74], [75], [76], [78] [2018-09-11 19:40:31,224 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-11 19:40:31,225 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-11 19:40:31,268 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-11 19:40:31,270 INFO L272 AbstractInterpreter]: Visited 6 different actions 6 times. Never merged. Never widened. Never found a fixpoint. Largest state had 7 variables. [2018-09-11 19:40:31,293 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-11 19:40:31,344 INFO L224 lantSequenceWeakener]: Could never weaken! [2018-09-11 19:40:31,344 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-11 19:40:31,367 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-11 19:40:31,369 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-11 19:40:31,369 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-09-11 19:40:31,369 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-11 19:40:31,374 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-11 19:40:31,379 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-11 19:40:31,380 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-11 19:40:31,383 INFO L87 Difference]: Start difference. First operand 30 states. Second operand 3 states. [2018-09-11 19:40:31,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-11 19:40:31,587 INFO L93 Difference]: Finished difference Result 65 states and 89 transitions. [2018-09-11 19:40:31,588 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-11 19:40:31,589 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 16 [2018-09-11 19:40:31,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-11 19:40:31,598 INFO L225 Difference]: With dead ends: 65 [2018-09-11 19:40:31,598 INFO L226 Difference]: Without dead ends: 38 [2018-09-11 19:40:31,602 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 15 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-11 19:40:31,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2018-09-11 19:40:31,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 25. [2018-09-11 19:40:31,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2018-09-11 19:40:31,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 28 transitions. [2018-09-11 19:40:31,650 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 28 transitions. Word has length 16 [2018-09-11 19:40:31,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-11 19:40:31,651 INFO L480 AbstractCegarLoop]: Abstraction has 25 states and 28 transitions. [2018-09-11 19:40:31,651 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-11 19:40:31,651 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 28 transitions. [2018-09-11 19:40:31,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-09-11 19:40:31,653 INFO L368 BasicCegarLoop]: Found error trace [2018-09-11 19:40:31,654 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-11 19:40:31,654 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loop_invgen_fragtest_simple_true_unreach_call_true_termination_i____VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-11 19:40:31,656 INFO L82 PathProgramCache]: Analyzing trace with hash -111227420, now seen corresponding path program 1 times [2018-09-11 19:40:31,656 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-11 19:40:31,657 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 21 with the following transitions: [2018-09-11 19:40:31,657 INFO L202 CegarAbsIntRunner]: [0], [4], [8], [10], [13], [21], [25], [29], [31], [34], [40], [44], [50], [63], [66], [68], [74], [75], [76], [78] [2018-09-11 19:40:31,663 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-11 19:40:31,663 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-11 19:40:31,694 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-11 19:40:31,694 INFO L272 AbstractInterpreter]: Visited 19 different actions 19 times. Never merged. Never widened. Never found a fixpoint. Largest state had 9 variables. [2018-09-11 19:40:31,713 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-11 19:40:31,760 INFO L232 lantSequenceWeakener]: Weakened 9 states. On average, predicates are now at 53.52% of their original sizes. [2018-09-11 19:40:31,760 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-11 19:40:32,121 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-11 19:40:32,121 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-11 19:40:32,121 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-09-11 19:40:32,121 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-11 19:40:32,122 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-11 19:40:32,123 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-11 19:40:32,123 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2018-09-11 19:40:32,123 INFO L87 Difference]: Start difference. First operand 25 states and 28 transitions. Second operand 9 states. [2018-09-11 19:40:32,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-11 19:40:32,715 INFO L93 Difference]: Finished difference Result 52 states and 60 transitions. [2018-09-11 19:40:32,716 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-09-11 19:40:32,716 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 20 [2018-09-11 19:40:32,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-11 19:40:32,718 INFO L225 Difference]: With dead ends: 52 [2018-09-11 19:40:32,718 INFO L226 Difference]: Without dead ends: 50 [2018-09-11 19:40:32,720 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2018-09-11 19:40:32,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2018-09-11 19:40:32,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 36. [2018-09-11 19:40:32,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2018-09-11 19:40:32,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 40 transitions. [2018-09-11 19:40:32,732 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 40 transitions. Word has length 20 [2018-09-11 19:40:32,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-11 19:40:32,733 INFO L480 AbstractCegarLoop]: Abstraction has 36 states and 40 transitions. [2018-09-11 19:40:32,733 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-11 19:40:32,733 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 40 transitions. [2018-09-11 19:40:32,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-09-11 19:40:32,734 INFO L368 BasicCegarLoop]: Found error trace [2018-09-11 19:40:32,734 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-11 19:40:32,735 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loop_invgen_fragtest_simple_true_unreach_call_true_termination_i____VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-11 19:40:32,735 INFO L82 PathProgramCache]: Analyzing trace with hash 689567936, now seen corresponding path program 1 times [2018-09-11 19:40:32,735 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-11 19:40:32,735 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 24 with the following transitions: [2018-09-11 19:40:32,736 INFO L202 CegarAbsIntRunner]: [0], [4], [8], [10], [13], [21], [25], [29], [31], [34], [36], [40], [44], [50], [63], [66], [68], [74], [75], [76], [78] [2018-09-11 19:40:32,737 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-11 19:40:32,738 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-11 19:40:32,795 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-11 19:40:32,795 INFO L272 AbstractInterpreter]: Visited 20 different actions 90 times. Merged at 7 different actions 49 times. Widened at 2 different actions 6 times. Found 1 fixpoints after 1 different actions. Largest state had 9 variables. [2018-09-11 19:40:32,830 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-11 19:40:32,866 INFO L232 lantSequenceWeakener]: Weakened 12 states. On average, predicates are now at 47.78% of their original sizes. [2018-09-11 19:40:32,866 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-11 19:40:33,275 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-11 19:40:33,275 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-11 19:40:33,276 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-11 19:40:33,276 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-11 19:40:33,276 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-11 19:40:33,276 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-11 19:40:33,277 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2018-09-11 19:40:33,277 INFO L87 Difference]: Start difference. First operand 36 states and 40 transitions. Second operand 10 states. [2018-09-11 19:40:33,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-11 19:40:33,742 INFO L93 Difference]: Finished difference Result 60 states and 68 transitions. [2018-09-11 19:40:33,744 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-09-11 19:40:33,745 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 23 [2018-09-11 19:40:33,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-11 19:40:33,747 INFO L225 Difference]: With dead ends: 60 [2018-09-11 19:40:33,747 INFO L226 Difference]: Without dead ends: 58 [2018-09-11 19:40:33,748 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 26 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=55, Invalid=127, Unknown=0, NotChecked=0, Total=182 [2018-09-11 19:40:33,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2018-09-11 19:40:33,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 32. [2018-09-11 19:40:33,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2018-09-11 19:40:33,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 35 transitions. [2018-09-11 19:40:33,759 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 35 transitions. Word has length 23 [2018-09-11 19:40:33,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-11 19:40:33,759 INFO L480 AbstractCegarLoop]: Abstraction has 32 states and 35 transitions. [2018-09-11 19:40:33,759 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-11 19:40:33,759 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 35 transitions. [2018-09-11 19:40:33,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-09-11 19:40:33,761 INFO L368 BasicCegarLoop]: Found error trace [2018-09-11 19:40:33,761 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-11 19:40:33,761 INFO L423 AbstractCegarLoop]: === Iteration 4 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loop_invgen_fragtest_simple_true_unreach_call_true_termination_i____VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-11 19:40:33,761 INFO L82 PathProgramCache]: Analyzing trace with hash -1352658359, now seen corresponding path program 1 times [2018-09-11 19:40:33,762 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-11 19:40:33,762 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 30 with the following transitions: [2018-09-11 19:40:33,762 INFO L202 CegarAbsIntRunner]: [0], [4], [8], [10], [13], [21], [25], [29], [31], [34], [40], [44], [50], [52], [57], [63], [66], [68], [71], [73], [74], [75], [76], [78], [79] [2018-09-11 19:40:33,764 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-11 19:40:33,765 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-11 19:40:33,771 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-11 19:40:33,771 INFO L272 AbstractInterpreter]: Visited 24 different actions 24 times. Never merged. Never widened. Never found a fixpoint. Largest state had 9 variables. [2018-09-11 19:40:33,810 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-11 19:40:33,844 INFO L232 lantSequenceWeakener]: Weakened 17 states. On average, predicates are now at 50.1% of their original sizes. [2018-09-11 19:40:33,845 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-11 19:40:34,293 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-11 19:40:34,293 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-11 19:40:34,293 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-09-11 19:40:34,293 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-11 19:40:34,294 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-09-11 19:40:34,294 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-09-11 19:40:34,295 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2018-09-11 19:40:34,295 INFO L87 Difference]: Start difference. First operand 32 states and 35 transitions. Second operand 11 states. [2018-09-11 19:40:34,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-11 19:40:34,943 INFO L93 Difference]: Finished difference Result 69 states and 77 transitions. [2018-09-11 19:40:34,944 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-09-11 19:40:34,944 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 29 [2018-09-11 19:40:34,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-11 19:40:34,947 INFO L225 Difference]: With dead ends: 69 [2018-09-11 19:40:34,948 INFO L226 Difference]: Without dead ends: 43 [2018-09-11 19:40:34,948 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 32 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2018-09-11 19:40:34,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2018-09-11 19:40:34,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 35. [2018-09-11 19:40:34,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2018-09-11 19:40:34,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 38 transitions. [2018-09-11 19:40:34,958 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 38 transitions. Word has length 29 [2018-09-11 19:40:34,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-11 19:40:34,958 INFO L480 AbstractCegarLoop]: Abstraction has 35 states and 38 transitions. [2018-09-11 19:40:34,958 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-09-11 19:40:34,958 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 38 transitions. [2018-09-11 19:40:34,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-09-11 19:40:34,959 INFO L368 BasicCegarLoop]: Found error trace [2018-09-11 19:40:34,960 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-11 19:40:34,960 INFO L423 AbstractCegarLoop]: === Iteration 5 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loop_invgen_fragtest_simple_true_unreach_call_true_termination_i____VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-11 19:40:34,960 INFO L82 PathProgramCache]: Analyzing trace with hash -38707475, now seen corresponding path program 1 times [2018-09-11 19:40:34,960 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-11 19:40:34,961 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 33 with the following transitions: [2018-09-11 19:40:34,961 INFO L202 CegarAbsIntRunner]: [0], [4], [8], [10], [13], [21], [25], [29], [31], [34], [36], [40], [44], [50], [52], [57], [63], [66], [68], [71], [73], [74], [75], [76], [78], [79] [2018-09-11 19:40:34,963 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-11 19:40:34,963 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-11 19:40:35,038 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-09-11 19:40:35,038 INFO L272 AbstractInterpreter]: Visited 26 different actions 215 times. Merged at 10 different actions 103 times. Widened at 3 different actions 14 times. Found 7 fixpoints after 2 different actions. Largest state had 9 variables. [2018-09-11 19:40:35,078 INFO L443 BasicCegarLoop]: Counterexample might be feasible [2018-09-11 19:40:35,100 WARN L209 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2018-09-11 19:40:35,100 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.09 07:40:35 BoogieIcfgContainer [2018-09-11 19:40:35,100 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-11 19:40:35,101 INFO L168 Benchmark]: Toolchain (without parser) took 4856.75 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 744.5 MB). Free memory was 1.4 GB in the beginning and 2.0 GB in the end (delta: -607.2 MB). Peak memory consumption was 137.3 MB. Max. memory is 7.1 GB. [2018-09-11 19:40:35,103 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. [2018-09-11 19:40:35,104 INFO L168 Benchmark]: CACSL2BoogieTranslator took 294.76 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. [2018-09-11 19:40:35,105 INFO L168 Benchmark]: Boogie Procedure Inliner took 23.47 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. [2018-09-11 19:40:35,105 INFO L168 Benchmark]: Boogie Preprocessor took 39.90 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. [2018-09-11 19:40:35,106 INFO L168 Benchmark]: RCFGBuilder took 441.44 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 744.5 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -797.6 MB). Peak memory consumption was 26.6 MB. Max. memory is 7.1 GB. [2018-09-11 19:40:35,108 INFO L168 Benchmark]: TraceAbstraction took 4048.99 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 179.8 MB). Peak memory consumption was 179.8 MB. Max. memory is 7.1 GB. [2018-09-11 19:40:35,114 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 294.76 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 23.47 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 39.90 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 441.44 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 744.5 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -797.6 MB). Peak memory consumption was 26.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4048.99 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 179.8 MB). Peak memory consumption was 179.8 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 i,pvlen ; [L12] int tmp___1 ; [L13] int k = 0; [L14] int n; [L15] i = 0 [L16] pvlen = __VERIFIER_nondet_int() [L17] COND FALSE !(__VERIFIER_nondet_int() && i <= 1000000) [L20] COND TRUE i > pvlen [L21] pvlen = i [L23] i = 0 [L24] COND TRUE __VERIFIER_nondet_int() && i <= 1000000 [L25] tmp___1 = i [L26] i = i + 1 [L27] k = k + 1 [L24] COND FALSE !(__VERIFIER_nondet_int() && i <= 1000000) [L29] int j = 0; [L30] n = i [L31] COND TRUE 1 [L32] CALL __VERIFIER_assert(k >= 0) [L4] COND FALSE, RET !(!(cond)) [L32] __VERIFIER_assert(k >= 0) [L33] k = k -1 [L34] i = i - 1 [L35] j = j + 1 [L36] COND FALSE !(j >= n) [L31] COND TRUE 1 [L32] CALL __VERIFIER_assert(k >= 0) [L4] COND TRUE !(cond) [L5] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 30 locations, 1 error locations. UNKNOWN Result, 3.9s OverallTime, 5 OverallIterations, 2 TraceHistogramMax, 1.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 80 SDtfs, 109 SDslu, 313 SDs, 0 SdLazy, 283 SolverSat, 42 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.3s Time, PredicateUnifierStatistics: 8 DeclaredPredicates, 94 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 1.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=36occurred in iteration=2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.4s AbstIntTime, 5 AbstIntIterations, 4 AbstIntStrong, 0.9576719576719575 AbsIntWeakeningRatio, 0.5119047619047619 AbsIntAvgWeakeningVarsNumRemoved, 9.380952380952381 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 61 StatesRemovedByMinimization, 4 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/fragtest_simple_true-unreach-call_true-termination.i_svcomp-Reach-64bit-ToothlessTaipan_OCT-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-11_19-40-35-137.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/fragtest_simple_true-unreach-call_true-termination.i_svcomp-Reach-64bit-ToothlessTaipan_OCT-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-11_19-40-35-137.csv Received shutdown request...