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/bitvector/sum02-1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-09 05:45:24,681 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-09 05:45:24,683 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-09 05:45:24,696 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-09 05:45:24,696 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-09 05:45:24,697 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-09 05:45:24,698 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-09 05:45:24,700 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-09 05:45:24,702 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-09 05:45:24,703 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-09 05:45:24,704 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-09 05:45:24,705 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-09 05:45:24,706 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-09 05:45:24,707 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-09 05:45:24,708 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-09 05:45:24,709 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-09 05:45:24,710 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-09 05:45:24,711 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-09 05:45:24,713 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-09 05:45:24,715 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-09 05:45:24,716 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-09 05:45:24,717 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-09 05:45:24,719 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-09 05:45:24,719 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-09 05:45:24,724 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-09-09 05:45:24,727 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-09 05:45:24,730 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-09 05:45:24,732 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-09 05:45:24,732 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-09 05:45:24,736 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-09 05:45:24,737 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-09 05:45:24,738 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-09 05:45:24,738 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-09 05:45:24,738 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-09 05:45:24,740 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-09 05:45:24,740 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-09 05:45:24,741 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 [2019-09-09 05:45:24,771 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-09 05:45:24,771 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-09 05:45:24,772 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-09 05:45:24,773 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-09 05:45:24,774 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-09 05:45:24,774 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-09 05:45:24,774 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-09 05:45:24,774 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-09 05:45:24,774 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-09 05:45:24,775 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-09 05:45:24,777 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-09 05:45:24,777 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-09 05:45:24,778 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-09 05:45:24,778 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-09 05:45:24,778 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-09 05:45:24,778 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-09 05:45:24,779 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-09 05:45:24,779 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-09 05:45:24,779 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-09 05:45:24,780 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-09 05:45:24,780 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-09 05:45:24,780 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-09 05:45:24,780 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-09 05:45:24,781 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-09 05:45:24,781 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-09 05:45:24,781 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-09 05:45:24,781 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-09 05:45:24,781 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-09 05:45:24,782 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-09 05:45:24,782 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-09 05:45:24,827 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-09 05:45:24,839 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-09 05:45:24,842 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-09 05:45:24,844 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-09 05:45:24,844 INFO L275 PluginConnector]: CDTParser initialized [2019-09-09 05:45:24,845 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/bitvector/sum02-1.c [2019-09-09 05:45:24,910 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d98b28450/e4c3f286606f48b1b4faa0a2d0a61dca/FLAG48a1afbfa [2019-09-09 05:45:25,333 INFO L306 CDTParser]: Found 1 translation units. [2019-09-09 05:45:25,334 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/bitvector/sum02-1.c [2019-09-09 05:45:25,340 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d98b28450/e4c3f286606f48b1b4faa0a2d0a61dca/FLAG48a1afbfa [2019-09-09 05:45:25,768 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d98b28450/e4c3f286606f48b1b4faa0a2d0a61dca [2019-09-09 05:45:25,779 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-09 05:45:25,783 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-09 05:45:25,784 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-09 05:45:25,785 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-09 05:45:25,788 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-09 05:45:25,790 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.09 05:45:25" (1/1) ... [2019-09-09 05:45:25,793 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4bc6461a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.09 05:45:25, skipping insertion in model container [2019-09-09 05:45:25,793 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.09 05:45:25" (1/1) ... [2019-09-09 05:45:25,801 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-09 05:45:25,818 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-09 05:45:26,001 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-09 05:45:26,006 INFO L188 MainTranslator]: Completed pre-run [2019-09-09 05:45:26,026 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-09 05:45:26,045 INFO L192 MainTranslator]: Completed translation [2019-09-09 05:45:26,046 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.09 05:45:26 WrapperNode [2019-09-09 05:45:26,046 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-09 05:45:26,047 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-09 05:45:26,047 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-09 05:45:26,048 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-09 05:45:26,154 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.09 05:45:26" (1/1) ... [2019-09-09 05:45:26,155 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.09 05:45:26" (1/1) ... [2019-09-09 05:45:26,162 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.09 05:45:26" (1/1) ... [2019-09-09 05:45:26,162 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.09 05:45:26" (1/1) ... [2019-09-09 05:45:26,169 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.09 05:45:26" (1/1) ... [2019-09-09 05:45:26,175 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.09 05:45:26" (1/1) ... [2019-09-09 05:45:26,180 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.09 05:45:26" (1/1) ... [2019-09-09 05:45:26,182 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-09 05:45:26,183 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-09 05:45:26,183 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-09 05:45:26,183 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-09 05:45:26,184 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.09 05:45:26" (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 [2019-09-09 05:45:26,261 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-09 05:45:26,262 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-09 05:45:26,262 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-09-09 05:45:26,262 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-09 05:45:26,262 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-09 05:45:26,263 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-09-09 05:45:26,263 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2019-09-09 05:45:26,263 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-09 05:45:26,263 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-09 05:45:26,263 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-09 05:45:26,483 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-09 05:45:26,484 INFO L283 CfgBuilder]: Removed 1 assume(true) statements. [2019-09-09 05:45:26,488 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.09 05:45:26 BoogieIcfgContainer [2019-09-09 05:45:26,488 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-09 05:45:26,490 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-09 05:45:26,491 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-09 05:45:26,494 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-09 05:45:26,495 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.09 05:45:25" (1/3) ... [2019-09-09 05:45:26,497 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b2c351b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.09 05:45:26, skipping insertion in model container [2019-09-09 05:45:26,497 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.09 05:45:26" (2/3) ... [2019-09-09 05:45:26,498 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b2c351b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.09 05:45:26, skipping insertion in model container [2019-09-09 05:45:26,498 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.09 05:45:26" (3/3) ... [2019-09-09 05:45:26,508 INFO L109 eAbstractionObserver]: Analyzing ICFG sum02-1.c [2019-09-09 05:45:26,522 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-09 05:45:26,530 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-09 05:45:26,546 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-09 05:45:26,572 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-09 05:45:26,572 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-09 05:45:26,572 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-09 05:45:26,573 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-09 05:45:26,573 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-09 05:45:26,573 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-09 05:45:26,573 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-09 05:45:26,573 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-09 05:45:26,589 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states. [2019-09-09 05:45:26,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-09-09 05:45:26,599 INFO L391 BasicCegarLoop]: Found error trace [2019-09-09 05:45:26,600 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-09 05:45:26,603 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-09 05:45:26,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-09 05:45:26,609 INFO L82 PathProgramCache]: Analyzing trace with hash -10373566, now seen corresponding path program 1 times [2019-09-09 05:45:26,612 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-09 05:45:26,653 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-09 05:45:26,654 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-09 05:45:26,654 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-09 05:45:26,654 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-09 05:45:26,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-09 05:45:26,714 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-09 05:45:26,716 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-09 05:45:26,717 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-09 05:45:26,717 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-09 05:45:26,722 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-09 05:45:26,737 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-09 05:45:26,738 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-09 05:45:26,741 INFO L87 Difference]: Start difference. First operand 18 states. Second operand 2 states. [2019-09-09 05:45:26,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-09 05:45:26,759 INFO L93 Difference]: Finished difference Result 18 states and 18 transitions. [2019-09-09 05:45:26,759 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-09 05:45:26,760 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2019-09-09 05:45:26,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-09 05:45:26,770 INFO L225 Difference]: With dead ends: 18 [2019-09-09 05:45:26,770 INFO L226 Difference]: Without dead ends: 12 [2019-09-09 05:45:26,772 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-09 05:45:26,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2019-09-09 05:45:26,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2019-09-09 05:45:26,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2019-09-09 05:45:26,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2019-09-09 05:45:26,809 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 10 [2019-09-09 05:45:26,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-09 05:45:26,810 INFO L475 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2019-09-09 05:45:26,810 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-09 05:45:26,810 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2019-09-09 05:45:26,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-09-09 05:45:26,811 INFO L391 BasicCegarLoop]: Found error trace [2019-09-09 05:45:26,811 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-09 05:45:26,812 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-09 05:45:26,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-09 05:45:26,812 INFO L82 PathProgramCache]: Analyzing trace with hash -15914692, now seen corresponding path program 1 times [2019-09-09 05:45:26,812 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-09 05:45:26,814 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-09 05:45:26,814 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-09 05:45:26,814 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-09 05:45:26,815 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-09 05:45:26,825 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2019-09-09 05:45:26,825 INFO L258 seRefinementStrategy]: Advancing trace checker [2019-09-09 05:45:26,825 INFO L170 anRefinementStrategy]: Switched to traceCheck mode Z3_NO_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2019-09-09 05:45:26,845 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-09 05:45:26,845 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_NO_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-09-09 05:45:26,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-09 05:45:26,868 INFO L195 CegarAbsIntRunner]: Skipping current iteration for AI because the path program does not contain any loops [2019-09-09 05:45:26,869 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-09-09 05:45:26,869 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-09 05:45:26,869 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) [2019-09-09 05:45:26,897 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-09 05:45:26,897 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-09 05:45:26,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-09 05:45:26,932 INFO L256 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 5 conjunts are in the unsatisfiable core [2019-09-09 05:45:26,939 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-09 05:45:26,992 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-09 05:45:26,993 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-09-09 05:45:27,047 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-09 05:45:27,061 INFO L312 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-09-09 05:45:27,061 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2019-09-09 05:45:27,061 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-09 05:45:27,062 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-09 05:45:27,062 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-09 05:45:27,063 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-09-09 05:45:27,063 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand 3 states. [2019-09-09 05:45:27,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-09 05:45:27,109 INFO L93 Difference]: Finished difference Result 14 states and 14 transitions. [2019-09-09 05:45:27,110 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-09 05:45:27,110 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2019-09-09 05:45:27,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-09 05:45:27,111 INFO L225 Difference]: With dead ends: 14 [2019-09-09 05:45:27,111 INFO L226 Difference]: Without dead ends: 14 [2019-09-09 05:45:27,112 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-09-09 05:45:27,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2019-09-09 05:45:27,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 13. [2019-09-09 05:45:27,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2019-09-09 05:45:27,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2019-09-09 05:45:27,117 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 10 [2019-09-09 05:45:27,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-09 05:45:27,118 INFO L475 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions. [2019-09-09 05:45:27,118 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-09 05:45:27,118 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2019-09-09 05:45:27,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-09-09 05:45:27,119 INFO L391 BasicCegarLoop]: Found error trace [2019-09-09 05:45:27,119 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-09 05:45:27,119 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-09 05:45:27,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-09 05:45:27,120 INFO L82 PathProgramCache]: Analyzing trace with hash -1244203718, now seen corresponding path program 1 times [2019-09-09 05:45:27,120 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-09 05:45:27,121 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-09 05:45:27,121 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-09 05:45:27,121 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-09 05:45:27,122 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-09 05:45:27,130 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2019-09-09 05:45:27,130 INFO L258 seRefinementStrategy]: Advancing trace checker [2019-09-09 05:45:27,131 INFO L170 anRefinementStrategy]: Switched to traceCheck mode Z3_NO_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-09-09 05:45:27,142 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-09 05:45:27,143 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_NO_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: null) [2019-09-09 05:45:27,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-09 05:45:27,161 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 13 with the following transitions: [2019-09-09 05:45:27,164 INFO L207 CegarAbsIntRunner]: [0], [4], [10], [12], [14], [20], [23], [25], [31], [32], [33], [35] [2019-09-09 05:45:27,195 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-09 05:45:27,195 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-09 05:45:27,253 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2019-09-09 05:45:27,948 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2019-09-09 05:45:27,951 INFO L272 AbstractInterpreter]: Visited 12 different actions 40 times. Merged at 3 different actions 12 times. Widened at 1 different actions 2 times. Performed 66 root evaluator evaluations with a maximum evaluation depth of 16. Performed 66 inverse root evaluator evaluations with a maximum inverse evaluation depth of 16. Found 1 fixpoints after 1 different actions. Largest state had 5 variables. [2019-09-09 05:45:27,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-09 05:45:27,956 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-09-09 05:45:27,956 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-09 05:45:27,957 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) [2019-09-09 05:45:27,987 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-09 05:45:27,988 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-09 05:45:28,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-09 05:45:28,014 INFO L256 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 12 conjunts are in the unsatisfiable core [2019-09-09 05:45:28,016 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-09 05:45:28,076 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-09 05:45:28,078 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-09-09 05:45:28,110 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-09 05:45:34,563 WARN L188 SmtUtils]: Spent 6.35 s on a formula simplification. DAG size of input: 39 DAG size of output: 5 [2019-09-09 05:45:34,597 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-09 05:45:34,601 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-09 05:45:34,602 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2019-09-09 05:45:34,602 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-09-09 05:45:34,602 INFO L454 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-09-09 05:45:34,603 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-09-09 05:45:34,605 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2019-09-09 05:45:34,606 INFO L87 Difference]: Start difference. First operand 13 states and 13 transitions. Second operand 10 states. [2019-09-09 05:45:34,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-09 05:45:34,696 INFO L93 Difference]: Finished difference Result 18 states and 18 transitions. [2019-09-09 05:45:34,697 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-09 05:45:34,697 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 12 [2019-09-09 05:45:34,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-09 05:45:34,698 INFO L225 Difference]: With dead ends: 18 [2019-09-09 05:45:34,698 INFO L226 Difference]: Without dead ends: 15 [2019-09-09 05:45:34,698 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 6.5s TimeCoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2019-09-09 05:45:34,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2019-09-09 05:45:34,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2019-09-09 05:45:34,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2019-09-09 05:45:34,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2019-09-09 05:45:34,702 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 12 [2019-09-09 05:45:34,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-09 05:45:34,702 INFO L475 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2019-09-09 05:45:34,702 INFO L476 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-09-09 05:45:34,703 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2019-09-09 05:45:34,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-09-09 05:45:34,703 INFO L391 BasicCegarLoop]: Found error trace [2019-09-09 05:45:34,703 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-09 05:45:34,704 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-09 05:45:34,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-09 05:45:34,704 INFO L82 PathProgramCache]: Analyzing trace with hash -513951304, now seen corresponding path program 2 times [2019-09-09 05:45:34,704 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-09 05:45:34,705 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-09 05:45:34,706 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-09 05:45:34,706 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-09 05:45:34,706 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-09 05:45:34,718 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2019-09-09 05:45:34,719 INFO L258 seRefinementStrategy]: Advancing trace checker [2019-09-09 05:45:34,719 INFO L170 anRefinementStrategy]: Switched to traceCheck mode Z3_NO_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-09-09 05:45:34,738 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-09-09 05:45:34,738 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_NO_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: null) [2019-09-09 05:45:36,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2019-09-09 05:45:36,756 INFO L285 seRefinementStrategy]: Strategy TaipanRefinementStrategy was unsuccessful and could not determine trace feasibility. [2019-09-09 05:45:36,756 INFO L466 BasicCegarLoop]: Counterexample might be feasible [2019-09-09 05:45:36,770 WARN L226 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2019-09-09 05:45:36,771 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.09 05:45:36 BoogieIcfgContainer [2019-09-09 05:45:36,771 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-09 05:45:36,773 INFO L168 Benchmark]: Toolchain (without parser) took 10991.83 ms. Allocated memory was 134.2 MB in the beginning and 255.9 MB in the end (delta: 121.6 MB). Free memory was 88.6 MB in the beginning and 165.2 MB in the end (delta: -76.5 MB). Peak memory consumption was 45.1 MB. Max. memory is 7.1 GB. [2019-09-09 05:45:36,774 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 134.2 MB. Free memory was 107.5 MB in the beginning and 107.2 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-09 05:45:36,775 INFO L168 Benchmark]: CACSL2BoogieTranslator took 262.40 ms. Allocated memory is still 134.2 MB. Free memory was 88.4 MB in the beginning and 79.2 MB in the end (delta: 9.1 MB). Peak memory consumption was 9.1 MB. Max. memory is 7.1 GB. [2019-09-09 05:45:36,776 INFO L168 Benchmark]: Boogie Preprocessor took 134.99 ms. Allocated memory was 134.2 MB in the beginning and 201.9 MB in the end (delta: 67.6 MB). Free memory was 79.2 MB in the beginning and 177.3 MB in the end (delta: -98.0 MB). Peak memory consumption was 15.7 MB. Max. memory is 7.1 GB. [2019-09-09 05:45:36,777 INFO L168 Benchmark]: RCFGBuilder took 305.68 ms. Allocated memory is still 201.9 MB. Free memory was 177.3 MB in the beginning and 166.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 7.1 GB. [2019-09-09 05:45:36,778 INFO L168 Benchmark]: TraceAbstraction took 10281.21 ms. Allocated memory was 201.9 MB in the beginning and 255.9 MB in the end (delta: 54.0 MB). Free memory was 166.6 MB in the beginning and 165.2 MB in the end (delta: 1.4 MB). Peak memory consumption was 55.4 MB. Max. memory is 7.1 GB. [2019-09-09 05:45:36,782 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 134.2 MB. Free memory was 107.5 MB in the beginning and 107.2 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 262.40 ms. Allocated memory is still 134.2 MB. Free memory was 88.4 MB in the beginning and 79.2 MB in the end (delta: 9.1 MB). Peak memory consumption was 9.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 134.99 ms. Allocated memory was 134.2 MB in the beginning and 201.9 MB in the end (delta: 67.6 MB). Free memory was 79.2 MB in the beginning and 177.3 MB in the end (delta: -98.0 MB). Peak memory consumption was 15.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 305.68 ms. Allocated memory is still 201.9 MB. Free memory was 177.3 MB in the beginning and 166.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 10281.21 ms. Allocated memory was 201.9 MB in the beginning and 255.9 MB in the end (delta: 54.0 MB). Free memory was 166.6 MB in the beginning and 165.2 MB in the end (delta: 1.4 MB). Peak memory consumption was 55.4 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] unsigned int i, n=__VERIFIER_nondet_uint(), sn=0; [L11] unsigned int i, n=__VERIFIER_nondet_uint(), sn=0; [L12] i=0 [L12] COND TRUE i<=n [L13] sn = sn + i [L12] i++ [L12] COND TRUE i<=n [L13] sn = sn + i [L12] i++ [L12] COND FALSE !(i<=n) [L15] CALL __VERIFIER_assert(sn==(n*(n+1))/2 || sn == 0) [L4] COND TRUE !(cond) [L5] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 18 locations, 1 error locations. UNKNOWN Result, 10.2s OverallTime, 4 OverallIterations, 2 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 37 SDtfs, 2 SDslu, 65 SDs, 0 SdLazy, 32 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 45 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 6.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=18occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.7s AbstIntTime, 1 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 2.0s SatisfiabilityAnalysisTime, 6.7s InterpolantComputationTime, 68 NumberOfCodeBlocks, 68 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 49 ConstructedInterpolants, 1 QuantifiedInterpolants, 1006 SizeOfPredicates, 8 NumberOfNonLiveVariables, 57 ConjunctsInSsa, 17 ConjunctsInUnsatCore, 5 InterpolantComputations, 3 PerfectInterpolantSequences, 0/2 InterpolantCoveringCapability, 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 Received shutdown request...