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_INT-OldIcfg.epf -i ../../../trunk/examples/svcomp/loop-acceleration/array_true-unreach-call4_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-ddc4263 [2018-08-08 07:14:25,065 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-08-08 07:14:25,069 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-08-08 07:14:25,090 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-08-08 07:14:25,090 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-08-08 07:14:25,091 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-08-08 07:14:25,093 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-08-08 07:14:25,096 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-08-08 07:14:25,098 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-08-08 07:14:25,107 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-08-08 07:14:25,109 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-08-08 07:14:25,109 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-08-08 07:14:25,110 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-08-08 07:14:25,114 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-08-08 07:14:25,118 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-08-08 07:14:25,119 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-08-08 07:14:25,120 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-08-08 07:14:25,124 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-08-08 07:14:25,129 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-08-08 07:14:25,130 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-08-08 07:14:25,133 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-08-08 07:14:25,134 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-08-08 07:14:25,138 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-08-08 07:14:25,139 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-08-08 07:14:25,139 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-08-08 07:14:25,140 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-08-08 07:14:25,143 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-08-08 07:14:25,145 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-08-08 07:14:25,146 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-08-08 07:14:25,147 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-08-08 07:14:25,147 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-08-08 07:14:25,148 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-08-08 07:14:25,148 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-08-08 07:14:25,150 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-08-08 07:14:25,153 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-08-08 07:14:25,154 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-08-08 07:14:25,154 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-ToothlessTaipan_INT-OldIcfg.epf [2018-08-08 07:14:25,184 INFO L110 SettingsManager]: Loading preferences was successful [2018-08-08 07:14:25,184 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-08-08 07:14:25,185 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-08-08 07:14:25,185 INFO L133 SettingsManager]: * User list type=DISABLED [2018-08-08 07:14:25,185 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-08-08 07:14:25,186 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-08-08 07:14:25,186 INFO L133 SettingsManager]: * Congruence Domain=false [2018-08-08 07:14:25,186 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-08-08 07:14:25,187 INFO L133 SettingsManager]: * Octagon Domain=false [2018-08-08 07:14:25,187 INFO L133 SettingsManager]: * Abstract domain=IntervalDomain [2018-08-08 07:14:25,187 INFO L133 SettingsManager]: * Log string format=TERM [2018-08-08 07:14:25,187 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-08-08 07:14:25,188 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-08-08 07:14:25,188 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-08-08 07:14:25,189 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-08-08 07:14:25,189 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-08-08 07:14:25,190 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-08-08 07:14:25,190 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-08-08 07:14:25,190 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-08-08 07:14:25,190 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-08-08 07:14:25,191 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-08-08 07:14:25,192 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-08-08 07:14:25,192 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-08-08 07:14:25,192 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-08-08 07:14:25,192 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-08-08 07:14:25,192 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-08-08 07:14:25,193 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-08-08 07:14:25,193 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-08-08 07:14:25,193 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-08-08 07:14:25,193 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-08-08 07:14:25,193 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-08-08 07:14:25,194 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-08-08 07:14:25,194 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-08-08 07:14:25,194 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-08-08 07:14:25,269 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-08-08 07:14:25,284 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-08-08 07:14:25,292 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-08-08 07:14:25,294 INFO L271 PluginConnector]: Initializing CDTParser... [2018-08-08 07:14:25,294 INFO L276 PluginConnector]: CDTParser initialized [2018-08-08 07:14:25,296 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-acceleration/array_true-unreach-call4_true-termination.i [2018-08-08 07:14:25,637 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bef6c8fba/6f4c0c3b579944748c66493217e4b4ce/FLAGbe0219fbc [2018-08-08 07:14:25,800 INFO L276 CDTParser]: Found 1 translation units. [2018-08-08 07:14:25,801 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-acceleration/array_true-unreach-call4_true-termination.i [2018-08-08 07:14:25,808 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bef6c8fba/6f4c0c3b579944748c66493217e4b4ce/FLAGbe0219fbc [2018-08-08 07:14:25,825 INFO L332 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bef6c8fba/6f4c0c3b579944748c66493217e4b4ce [2018-08-08 07:14:25,836 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-08-08 07:14:25,838 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-08-08 07:14:25,839 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-08-08 07:14:25,839 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-08-08 07:14:25,846 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-08-08 07:14:25,847 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.08 07:14:25" (1/1) ... [2018-08-08 07:14:25,850 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@547b67dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 07:14:25, skipping insertion in model container [2018-08-08 07:14:25,850 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.08 07:14:25" (1/1) ... [2018-08-08 07:14:26,000 INFO L179 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-08-08 07:14:26,040 INFO L175 PostProcessor]: Settings: Checked method=main [2018-08-08 07:14:26,055 INFO L422 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-08-08 07:14:26,060 INFO L175 PostProcessor]: Settings: Checked method=main [2018-08-08 07:14:26,074 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 07:14:26 WrapperNode [2018-08-08 07:14:26,074 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-08-08 07:14:26,075 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-08-08 07:14:26,075 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-08-08 07:14:26,075 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-08-08 07:14:26,085 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 07:14:26" (1/1) ... [2018-08-08 07:14:26,092 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 07:14:26" (1/1) ... [2018-08-08 07:14:26,099 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-08-08 07:14:26,099 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-08-08 07:14:26,099 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-08-08 07:14:26,099 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-08-08 07:14:26,110 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 07:14:26" (1/1) ... [2018-08-08 07:14:26,110 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 07:14:26" (1/1) ... [2018-08-08 07:14:26,111 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 07:14:26" (1/1) ... [2018-08-08 07:14:26,111 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 07:14:26" (1/1) ... [2018-08-08 07:14:26,113 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 07:14:26" (1/1) ... [2018-08-08 07:14:26,120 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 07:14:26" (1/1) ... [2018-08-08 07:14:26,121 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 07:14:26" (1/1) ... [2018-08-08 07:14:26,122 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-08-08 07:14:26,123 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-08-08 07:14:26,123 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-08-08 07:14:26,123 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-08-08 07:14:26,124 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 07:14:26" (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 [2018-08-08 07:14:26,198 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loop_acceleration_array_true_unreach_call__true_termination_i____VERIFIER_assert [2018-08-08 07:14:26,198 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loop_acceleration_array_true_unreach_call__true_termination_i____VERIFIER_assert [2018-08-08 07:14:26,199 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-08-08 07:14:26,199 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-08-08 07:14:26,199 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-08-08 07:14:26,199 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-08-08 07:14:26,199 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-08-08 07:14:26,200 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-08-08 07:14:26,567 INFO L273 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-08-08 07:14:26,568 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.08 07:14:26 BoogieIcfgContainer [2018-08-08 07:14:26,568 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-08-08 07:14:26,569 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-08-08 07:14:26,569 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-08-08 07:14:26,572 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-08-08 07:14:26,572 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.08 07:14:25" (1/3) ... [2018-08-08 07:14:26,573 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@226df424 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.08 07:14:26, skipping insertion in model container [2018-08-08 07:14:26,573 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 07:14:26" (2/3) ... [2018-08-08 07:14:26,574 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@226df424 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.08 07:14:26, skipping insertion in model container [2018-08-08 07:14:26,574 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.08 07:14:26" (3/3) ... [2018-08-08 07:14:26,576 INFO L112 eAbstractionObserver]: Analyzing ICFG array_true-unreach-call4_true-termination.i [2018-08-08 07:14:26,586 INFO L133 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-08-08 07:14:26,594 INFO L145 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-08-08 07:14:26,654 INFO L129 ementStrategyFactory]: Using default assertion order modulation [2018-08-08 07:14:26,655 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-08-08 07:14:26,655 INFO L382 AbstractCegarLoop]: Hoare is true [2018-08-08 07:14:26,655 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-08-08 07:14:26,656 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-08-08 07:14:26,656 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-08-08 07:14:26,656 INFO L386 AbstractCegarLoop]: Difference is false [2018-08-08 07:14:26,656 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-08-08 07:14:26,656 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-08-08 07:14:26,678 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states. [2018-08-08 07:14:26,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-08-08 07:14:26,684 INFO L368 BasicCegarLoop]: Found error trace [2018-08-08 07:14:26,685 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-08-08 07:14:26,686 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loop_acceleration_array_true_unreach_call__true_termination_i____VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-08-08 07:14:26,692 INFO L82 PathProgramCache]: Analyzing trace with hash 31008519, now seen corresponding path program 1 times [2018-08-08 07:14:26,695 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-08-08 07:14:26,696 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 13 with the following transitions: [2018-08-08 07:14:26,698 INFO L202 CegarAbsIntRunner]: [0], [3], [5], [11], [15], [28], [30], [43], [47], [48], [49], [51] [2018-08-08 07:14:26,736 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2018-08-08 07:14:26,737 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2018-08-08 07:14:26,790 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-08-08 07:14:26,792 INFO L272 AbstractInterpreter]: Visited 6 different actions 6 times. Never merged. Never widened. Never found a fixpoint. Largest state had 2 variables. [2018-08-08 07:14:26,804 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-08-08 07:14:26,852 INFO L232 lantSequenceWeakener]: Weakened 1 states. On average, predicates are now at 100% of their original sizes. [2018-08-08 07:14:26,852 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-08-08 07:14:26,854 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-08-08 07:14:26,855 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-08-08 07:14:26,856 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-08-08 07:14:26,856 INFO L262 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-08-08 07:14:26,861 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-08-08 07:14:26,867 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-08-08 07:14:26,868 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-08-08 07:14:26,871 INFO L87 Difference]: Start difference. First operand 23 states. Second operand 2 states. [2018-08-08 07:14:26,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-08-08 07:14:26,895 INFO L93 Difference]: Finished difference Result 38 states and 45 transitions. [2018-08-08 07:14:26,895 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-08-08 07:14:26,896 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 12 [2018-08-08 07:14:26,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-08-08 07:14:26,905 INFO L225 Difference]: With dead ends: 38 [2018-08-08 07:14:26,906 INFO L226 Difference]: Without dead ends: 17 [2018-08-08 07:14:26,909 INFO L603 BasicCegarLoop]: 2 DeclaredPredicates, 11 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-08-08 07:14:26,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2018-08-08 07:14:26,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2018-08-08 07:14:26,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2018-08-08 07:14:26,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 18 transitions. [2018-08-08 07:14:26,943 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 18 transitions. Word has length 12 [2018-08-08 07:14:26,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-08-08 07:14:26,944 INFO L480 AbstractCegarLoop]: Abstraction has 17 states and 18 transitions. [2018-08-08 07:14:26,944 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-08-08 07:14:26,944 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 18 transitions. [2018-08-08 07:14:26,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-08-08 07:14:26,945 INFO L368 BasicCegarLoop]: Found error trace [2018-08-08 07:14:26,946 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-08-08 07:14:26,946 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loop_acceleration_array_true_unreach_call__true_termination_i____VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-08-08 07:14:26,946 INFO L82 PathProgramCache]: Analyzing trace with hash -1339690116, now seen corresponding path program 1 times [2018-08-08 07:14:26,947 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-08-08 07:14:26,947 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 15 with the following transitions: [2018-08-08 07:14:26,947 INFO L202 CegarAbsIntRunner]: [0], [3], [5], [11], [15], [19], [22], [30], [34], [37], [47], [48], [49], [51] [2018-08-08 07:14:26,949 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2018-08-08 07:14:26,949 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2018-08-08 07:14:26,963 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-08-08 07:14:26,963 INFO L272 AbstractInterpreter]: Visited 7 different actions 7 times. Never merged. Never widened. Never found a fixpoint. Largest state had 2 variables. [2018-08-08 07:14:26,999 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-08-08 07:14:27,009 INFO L224 lantSequenceWeakener]: Could never weaken! [2018-08-08 07:14:27,009 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-08-08 07:14:27,029 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-08-08 07:14:27,029 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-08-08 07:14:27,029 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-08-08 07:14:27,029 INFO L262 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-08-08 07:14:27,030 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-08-08 07:14:27,031 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-08-08 07:14:27,031 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-08-08 07:14:27,031 INFO L87 Difference]: Start difference. First operand 17 states and 18 transitions. Second operand 3 states. [2018-08-08 07:14:27,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-08-08 07:14:27,181 INFO L93 Difference]: Finished difference Result 33 states and 36 transitions. [2018-08-08 07:14:27,182 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-08-08 07:14:27,182 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 14 [2018-08-08 07:14:27,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-08-08 07:14:27,185 INFO L225 Difference]: With dead ends: 33 [2018-08-08 07:14:27,186 INFO L226 Difference]: Without dead ends: 24 [2018-08-08 07:14:27,187 INFO L603 BasicCegarLoop]: 2 DeclaredPredicates, 13 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-08-08 07:14:27,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2018-08-08 07:14:27,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 19. [2018-08-08 07:14:27,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2018-08-08 07:14:27,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 20 transitions. [2018-08-08 07:14:27,194 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 20 transitions. Word has length 14 [2018-08-08 07:14:27,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-08-08 07:14:27,194 INFO L480 AbstractCegarLoop]: Abstraction has 19 states and 20 transitions. [2018-08-08 07:14:27,194 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-08-08 07:14:27,195 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 20 transitions. [2018-08-08 07:14:27,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-08-08 07:14:27,195 INFO L368 BasicCegarLoop]: Found error trace [2018-08-08 07:14:27,195 INFO L376 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-08-08 07:14:27,196 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loop_acceleration_array_true_unreach_call__true_termination_i____VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-08-08 07:14:27,196 INFO L82 PathProgramCache]: Analyzing trace with hash 133102409, now seen corresponding path program 1 times [2018-08-08 07:14:27,196 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-08-08 07:14:27,197 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 18 with the following transitions: [2018-08-08 07:14:27,197 INFO L202 CegarAbsIntRunner]: [0], [3], [5], [11], [15], [19], [22], [24], [26], [30], [34], [37], [47], [48], [49], [51] [2018-08-08 07:14:27,199 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2018-08-08 07:14:27,199 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2018-08-08 07:14:27,231 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-08-08 07:14:27,232 INFO L272 AbstractInterpreter]: Visited 16 different actions 36 times. Merged at 3 different actions 15 times. Widened at 1 different actions 1 times. Found 1 fixpoints after 1 different actions. Largest state had 4 variables. [2018-08-08 07:14:27,252 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-08-08 07:14:27,266 WARN L205 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2018-08-08 07:14:27,266 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.08 07:14:27 BoogieIcfgContainer [2018-08-08 07:14:27,266 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-08-08 07:14:27,267 INFO L168 Benchmark]: Toolchain (without parser) took 1431.01 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 717.8 MB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -724.1 MB). There was no memory consumed. Max. memory is 7.1 GB. [2018-08-08 07:14:27,269 INFO L168 Benchmark]: CDTParser took 0.24 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. [2018-08-08 07:14:27,270 INFO L168 Benchmark]: CACSL2BoogieTranslator took 235.80 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: 13.2 MB). Peak memory consumption was 13.2 MB. Max. memory is 7.1 GB. [2018-08-08 07:14:27,271 INFO L168 Benchmark]: Boogie Procedure Inliner took 23.88 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. [2018-08-08 07:14:27,271 INFO L168 Benchmark]: Boogie Preprocessor took 23.59 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. [2018-08-08 07:14:27,272 INFO L168 Benchmark]: RCFGBuilder took 445.16 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 717.8 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -771.8 MB). Peak memory consumption was 26.7 MB. Max. memory is 7.1 GB. [2018-08-08 07:14:27,273 INFO L168 Benchmark]: TraceAbstraction took 697.74 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 34.5 MB). Peak memory consumption was 34.5 MB. Max. memory is 7.1 GB. [2018-08-08 07:14:27,281 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 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 235.80 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: 13.2 MB). Peak memory consumption was 13.2 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 23.88 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Preprocessor took 23.59 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 445.16 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 717.8 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -771.8 MB). Peak memory consumption was 26.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 697.74 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 34.5 MB). Peak memory consumption was 34.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 6]: 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[1024]; [L12] int i; [L14] i = 0 [L14] COND TRUE i < 1024-1 [L15] A[i] = __VERIFIER_nondet_int() [L14] i++ [L14] i++ [L14] COND FALSE !(i < 1024-1) [L18] A[1024 -1] = 0 [L19] i = 0 [L19] COND FALSE !(A[i] != 0) [L21] CALL __VERIFIER_assert(i <= 1024) [L5] COND TRUE !(cond) [L6] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 23 locations, 1 error locations. UNKNOWN Result, 0.6s OverallTime, 3 OverallIterations, 2 TraceHistogramMax, 0.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 37 SDtfs, 4 SDslu, 10 SDs, 0 SdLazy, 11 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 4 DeclaredPredicates, 24 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=23occurred 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, 0.4166666666666667 AbsIntAvgWeakeningVarsNumRemoved, 0.0 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 5 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/array_true-unreach-call4_true-termination.i_svcomp-Reach-64bit-ToothlessTaipan_INT-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-08-08_07-14-27-301.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/array_true-unreach-call4_true-termination.i_svcomp-Reach-64bit-ToothlessTaipan_INT-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-08-08_07-14-27-301.csv Received shutdown request...