java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf -i ../../../trunk/examples/svcomp/reducercommutativity/rangesum60.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-673a906-m [2019-10-03 02:59:36,432 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-03 02:59:36,434 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-03 02:59:36,446 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2019-10-03 02:59:36,455 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-03 02:59:36,456 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-03 02:59:36,457 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-03 02:59:36,458 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-03 02:59:36,459 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-03 02:59:36,460 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-03 02:59:36,462 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-03 02:59:36,464 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-03 02:59:36,465 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-03 02:59:36,467 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-03 02:59:36,468 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-03 02:59:36,468 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-03 02:59:36,471 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-10-03 02:59:36,480 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-03 02:59:36,482 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-03 02:59:36,483 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-03 02:59:36,484 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf [2019-10-03 02:59:36,511 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-03 02:59:36,511 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-03 02:59:36,512 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-10-03 02:59:36,512 INFO L138 SettingsManager]: * Log level for plugins=info [2019-10-03 02:59:36,515 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-03 02:59:36,516 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-03 02:59:36,516 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-10-03 02:59:36,516 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-10-03 02:59:36,516 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-03 02:59:36,516 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-10-03 02:59:36,519 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-03 02:59:36,519 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-03 02:59:36,519 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-03 02:59:36,520 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-03 02:59:36,520 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-03 02:59:36,520 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-03 02:59:36,520 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-03 02:59:36,520 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-03 02:59:36,521 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-03 02:59:36,521 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-03 02:59:36,521 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-03 02:59:36,521 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-10-03 02:59:36,522 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-03 02:59:36,522 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-03 02:59:36,522 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-03 02:59:36,523 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-03 02:59:36,523 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-10-03 02:59:36,523 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-03 02:59:36,523 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-03 02:59:36,523 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-10-03 02:59:36,580 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-03 02:59:36,593 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-03 02:59:36,597 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-03 02:59:36,598 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-03 02:59:36,599 INFO L275 PluginConnector]: CDTParser initialized [2019-10-03 02:59:36,599 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/reducercommutativity/rangesum60.i [2019-10-03 02:59:36,667 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f9176453a/af7cec190c274e46bba0de5dec910071/FLAG6905c1e0d [2019-10-03 02:59:37,126 INFO L306 CDTParser]: Found 1 translation units. [2019-10-03 02:59:37,126 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/reducercommutativity/rangesum60.i [2019-10-03 02:59:37,133 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f9176453a/af7cec190c274e46bba0de5dec910071/FLAG6905c1e0d [2019-10-03 02:59:37,513 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f9176453a/af7cec190c274e46bba0de5dec910071 [2019-10-03 02:59:37,522 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-03 02:59:37,524 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-03 02:59:37,525 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-03 02:59:37,525 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-03 02:59:37,529 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-03 02:59:37,531 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.10 02:59:37" (1/1) ... [2019-10-03 02:59:37,534 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@25f974cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:59:37, skipping insertion in model container [2019-10-03 02:59:37,534 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.10 02:59:37" (1/1) ... [2019-10-03 02:59:37,542 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-03 02:59:37,564 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-03 02:59:37,753 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-03 02:59:37,763 INFO L188 MainTranslator]: Completed pre-run [2019-10-03 02:59:37,792 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-03 02:59:37,901 INFO L192 MainTranslator]: Completed translation [2019-10-03 02:59:37,902 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:59:37 WrapperNode [2019-10-03 02:59:37,902 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-03 02:59:37,903 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-03 02:59:37,903 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-03 02:59:37,903 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-03 02:59:37,917 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:59:37" (1/1) ... [2019-10-03 02:59:37,917 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:59:37" (1/1) ... [2019-10-03 02:59:37,926 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:59:37" (1/1) ... [2019-10-03 02:59:37,927 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:59:37" (1/1) ... [2019-10-03 02:59:37,936 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:59:37" (1/1) ... [2019-10-03 02:59:37,942 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:59:37" (1/1) ... [2019-10-03 02:59:37,943 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:59:37" (1/1) ... [2019-10-03 02:59:37,947 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-03 02:59:37,950 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-03 02:59:37,951 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-03 02:59:37,951 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-03 02:59:37,952 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:59:37" (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 [2019-10-03 02:59:38,021 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-03 02:59:38,021 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-03 02:59:38,022 INFO L138 BoogieDeclarations]: Found implementation of procedure init_nondet [2019-10-03 02:59:38,022 INFO L138 BoogieDeclarations]: Found implementation of procedure rangesum [2019-10-03 02:59:38,022 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-03 02:59:38,022 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-03 02:59:38,022 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-03 02:59:38,022 INFO L130 BoogieDeclarations]: Found specification of procedure init_nondet [2019-10-03 02:59:38,023 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-03 02:59:38,023 INFO L130 BoogieDeclarations]: Found specification of procedure rangesum [2019-10-03 02:59:38,023 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-03 02:59:38,024 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-03 02:59:38,024 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-03 02:59:38,025 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-03 02:59:38,025 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-03 02:59:38,026 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-03 02:59:38,347 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-03 02:59:38,347 INFO L283 CfgBuilder]: Removed 3 assume(true) statements. [2019-10-03 02:59:38,349 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.10 02:59:38 BoogieIcfgContainer [2019-10-03 02:59:38,349 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-03 02:59:38,350 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-03 02:59:38,350 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-03 02:59:38,353 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-03 02:59:38,354 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.10 02:59:37" (1/3) ... [2019-10-03 02:59:38,354 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@386e9138 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.10 02:59:38, skipping insertion in model container [2019-10-03 02:59:38,355 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:59:37" (2/3) ... [2019-10-03 02:59:38,355 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@386e9138 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.10 02:59:38, skipping insertion in model container [2019-10-03 02:59:38,355 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.10 02:59:38" (3/3) ... [2019-10-03 02:59:38,357 INFO L109 eAbstractionObserver]: Analyzing ICFG rangesum60.i [2019-10-03 02:59:38,366 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-03 02:59:38,374 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-03 02:59:38,391 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-03 02:59:38,422 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-10-03 02:59:38,422 INFO L378 AbstractCegarLoop]: Hoare is false [2019-10-03 02:59:38,422 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-03 02:59:38,422 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-03 02:59:38,423 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-03 02:59:38,423 INFO L382 AbstractCegarLoop]: Difference is false [2019-10-03 02:59:38,423 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-03 02:59:38,423 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-03 02:59:38,437 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states. [2019-10-03 02:59:38,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2019-10-03 02:59:38,448 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:59:38,449 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:59:38,451 INFO L418 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:59:38,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:59:38,458 INFO L82 PathProgramCache]: Analyzing trace with hash -332770493, now seen corresponding path program 1 times [2019-10-03 02:59:38,460 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:59:38,522 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:59:38,522 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:59:38,522 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:59:38,522 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:59:38,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:59:38,616 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2019-10-03 02:59:38,617 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-10-03 02:59:38,617 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-10-03 02:59:38,618 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 38 with the following transitions: [2019-10-03 02:59:38,621 INFO L207 CegarAbsIntRunner]: [0], [1], [5], [7], [9], [11], [17], [25], [27], [30], [31], [38], [55], [59], [61], [62], [68], [76], [77], [78], [79], [81], [82], [83], [84], [85], [86], [87], [88] [2019-10-03 02:59:38,658 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-10-03 02:59:38,659 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-10-03 02:59:38,720 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-10-03 02:59:38,721 INFO L272 AbstractInterpreter]: Visited 6 different actions 6 times. Never merged. Never widened. Performed 15 root evaluator evaluations with a maximum evaluation depth of 0. Performed 15 inverse root evaluator evaluations with a maximum inverse evaluation depth of 0. Never found a fixpoint. Largest state had 25 variables. [2019-10-03 02:59:38,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:59:38,726 INFO L403 sIntCurrentIteration]: Generating AbsInt predicates [2019-10-03 02:59:38,778 INFO L227 lantSequenceWeakener]: Weakened 4 states. On average, predicates are now at 100% of their original sizes. [2019-10-03 02:59:38,779 INFO L418 sIntCurrentIteration]: Unifying AI predicates [2019-10-03 02:59:38,782 INFO L420 sIntCurrentIteration]: We unified 36 AI predicates to 36 [2019-10-03 02:59:38,782 INFO L429 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-10-03 02:59:38,784 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:59:38,784 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-03 02:59:38,784 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:59:38,790 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-03 02:59:38,793 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-03 02:59:38,794 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-03 02:59:38,797 INFO L87 Difference]: Start difference. First operand 37 states. Second operand 2 states. [2019-10-03 02:59:38,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:59:38,812 INFO L93 Difference]: Finished difference Result 6 states and 5 transitions. [2019-10-03 02:59:38,813 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-03 02:59:38,814 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 37 [2019-10-03 02:59:38,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:59:38,820 INFO L225 Difference]: With dead ends: 6 [2019-10-03 02:59:38,821 INFO L226 Difference]: Without dead ends: 0 [2019-10-03 02:59:38,823 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-03 02:59:38,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-03 02:59:38,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-03 02:59:38,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-03 02:59:38,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-03 02:59:38,852 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 37 [2019-10-03 02:59:38,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:59:38,853 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-03 02:59:38,853 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-03 02:59:38,853 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-03 02:59:38,853 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-03 02:59:38,858 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.10 02:59:38 BoogieIcfgContainer [2019-10-03 02:59:38,859 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-03 02:59:38,862 INFO L168 Benchmark]: Toolchain (without parser) took 1336.92 ms. Allocated memory was 137.4 MB in the beginning and 198.2 MB in the end (delta: 60.8 MB). Free memory was 84.4 MB in the beginning and 129.2 MB in the end (delta: -44.8 MB). Peak memory consumption was 16.0 MB. Max. memory is 7.1 GB. [2019-10-03 02:59:38,863 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 137.4 MB. Free memory was 103.2 MB in the beginning and 103.0 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-10-03 02:59:38,865 INFO L168 Benchmark]: CACSL2BoogieTranslator took 377.42 ms. Allocated memory was 137.4 MB in the beginning and 198.2 MB in the end (delta: 60.8 MB). Free memory was 84.2 MB in the beginning and 175.9 MB in the end (delta: -91.7 MB). Peak memory consumption was 20.5 MB. Max. memory is 7.1 GB. [2019-10-03 02:59:38,866 INFO L168 Benchmark]: Boogie Preprocessor took 43.89 ms. Allocated memory is still 198.2 MB. Free memory was 175.9 MB in the beginning and 173.5 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.4 MB. Max. memory is 7.1 GB. [2019-10-03 02:59:38,867 INFO L168 Benchmark]: RCFGBuilder took 398.59 ms. Allocated memory is still 198.2 MB. Free memory was 173.5 MB in the beginning and 156.0 MB in the end (delta: 17.5 MB). Peak memory consumption was 17.5 MB. Max. memory is 7.1 GB. [2019-10-03 02:59:38,868 INFO L168 Benchmark]: TraceAbstraction took 508.94 ms. Allocated memory is still 198.2 MB. Free memory was 155.3 MB in the beginning and 129.2 MB in the end (delta: 26.2 MB). Peak memory consumption was 26.2 MB. Max. memory is 7.1 GB. [2019-10-03 02:59:38,872 INFO L335 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 137.4 MB. Free memory was 103.2 MB in the beginning and 103.0 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 377.42 ms. Allocated memory was 137.4 MB in the beginning and 198.2 MB in the end (delta: 60.8 MB). Free memory was 84.2 MB in the beginning and 175.9 MB in the end (delta: -91.7 MB). Peak memory consumption was 20.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 43.89 ms. Allocated memory is still 198.2 MB. Free memory was 175.9 MB in the beginning and 173.5 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 398.59 ms. Allocated memory is still 198.2 MB. Free memory was 173.5 MB in the beginning and 156.0 MB in the end (delta: 17.5 MB). Peak memory consumption was 17.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 508.94 ms. Allocated memory is still 198.2 MB. Free memory was 155.3 MB in the beginning and 129.2 MB in the end (delta: 26.2 MB). Peak memory consumption was 26.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 50]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 37 locations, 1 error locations. SAFE Result, 0.4s OverallTime, 1 OverallIterations, 3 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 5 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 36 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=37occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.1s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 0.9861111111111112 AbsIntWeakeningRatio, 1.3611111111111112 AbsIntAvgWeakeningVarsNumRemoved, 0.16666666666666666 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 37 NumberOfCodeBlocks, 37 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...