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 -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-INT-LIM.epf -i ../../../trunk/examples/svcomp/loops/terminator_01_false-unreach-call_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-df4b876 [2018-11-07 22:00:39,103 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-07 22:00:39,105 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-07 22:00:39,116 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-07 22:00:39,117 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-07 22:00:39,118 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-07 22:00:39,119 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-07 22:00:39,121 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-07 22:00:39,122 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-07 22:00:39,123 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-07 22:00:39,124 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-07 22:00:39,124 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-07 22:00:39,126 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-07 22:00:39,127 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-07 22:00:39,129 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-07 22:00:39,132 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-07 22:00:39,132 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-07 22:00:39,134 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-07 22:00:39,136 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-07 22:00:39,138 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-07 22:00:39,139 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-07 22:00:39,140 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-07 22:00:39,142 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-07 22:00:39,146 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-07 22:00:39,146 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-07 22:00:39,147 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-07 22:00:39,149 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-07 22:00:39,150 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-07 22:00:39,152 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-07 22:00:39,153 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-07 22:00:39,153 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-07 22:00:39,156 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-11-07 22:00:39,158 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-INT-LIM.epf [2018-11-07 22:00:39,184 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-07 22:00:39,185 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-07 22:00:39,186 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-07 22:00:39,186 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-07 22:00:39,186 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-07 22:00:39,190 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-07 22:00:39,190 INFO L133 SettingsManager]: * Maximum recursion depth of evaluation operations=6 [2018-11-07 22:00:39,190 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-07 22:00:39,190 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-07 22:00:39,191 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-07 22:00:39,191 INFO L133 SettingsManager]: * Log string format=TERM [2018-11-07 22:00:39,191 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-07 22:00:39,191 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-07 22:00:39,192 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-07 22:00:39,192 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-07 22:00:39,193 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-07 22:00:39,193 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-07 22:00:39,193 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-07 22:00:39,193 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-07 22:00:39,193 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-07 22:00:39,193 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-07 22:00:39,194 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-07 22:00:39,194 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-07 22:00:39,194 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-07 22:00:39,194 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-07 22:00:39,194 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-07 22:00:39,196 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-07 22:00:39,197 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-07 22:00:39,197 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-07 22:00:39,197 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-07 22:00:39,197 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-07 22:00:39,197 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-07 22:00:39,197 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-07 22:00:39,198 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-11-07 22:00:39,198 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-11-07 22:00:39,259 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-07 22:00:39,274 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-07 22:00:39,278 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-07 22:00:39,280 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-07 22:00:39,280 INFO L276 PluginConnector]: CDTParser initialized [2018-11-07 22:00:39,280 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/terminator_01_false-unreach-call_true-termination.i [2018-11-07 22:00:39,332 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1d51b2ba9/b49e6752239a4a489ba14620132ae87f/FLAG22d228058 [2018-11-07 22:00:39,760 INFO L298 CDTParser]: Found 1 translation units. [2018-11-07 22:00:39,760 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/terminator_01_false-unreach-call_true-termination.i [2018-11-07 22:00:39,769 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1d51b2ba9/b49e6752239a4a489ba14620132ae87f/FLAG22d228058 [2018-11-07 22:00:39,787 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1d51b2ba9/b49e6752239a4a489ba14620132ae87f [2018-11-07 22:00:39,802 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-07 22:00:39,804 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-07 22:00:39,805 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-07 22:00:39,805 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-07 22:00:39,811 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-07 22:00:39,811 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 10:00:39" (1/1) ... [2018-11-07 22:00:39,813 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6cedeeed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:00:39, skipping insertion in model container [2018-11-07 22:00:39,814 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 10:00:39" (1/1) ... [2018-11-07 22:00:39,822 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-07 22:00:39,842 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-07 22:00:40,044 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 22:00:40,057 INFO L189 MainTranslator]: Completed pre-run [2018-11-07 22:00:40,075 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 22:00:40,092 INFO L193 MainTranslator]: Completed translation [2018-11-07 22:00:40,092 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:00:40 WrapperNode [2018-11-07 22:00:40,092 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-07 22:00:40,093 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-07 22:00:40,093 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-07 22:00:40,093 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-07 22:00:40,100 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:00:40" (1/1) ... [2018-11-07 22:00:40,107 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:00:40" (1/1) ... [2018-11-07 22:00:40,114 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-07 22:00:40,114 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-07 22:00:40,115 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-07 22:00:40,115 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-07 22:00:40,126 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:00:40" (1/1) ... [2018-11-07 22:00:40,126 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:00:40" (1/1) ... [2018-11-07 22:00:40,127 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:00:40" (1/1) ... [2018-11-07 22:00:40,128 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:00:40" (1/1) ... [2018-11-07 22:00:40,132 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:00:40" (1/1) ... [2018-11-07 22:00:40,137 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:00:40" (1/1) ... [2018-11-07 22:00:40,138 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:00:40" (1/1) ... [2018-11-07 22:00:40,140 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-07 22:00:40,140 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-07 22:00:40,141 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-07 22:00:40,141 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-07 22:00:40,142 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:00:40" (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 [2018-11-07 22:00:40,264 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-07 22:00:40,265 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-07 22:00:40,265 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-07 22:00:40,265 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-07 22:00:40,265 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-07 22:00:40,265 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-07 22:00:40,265 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-07 22:00:40,265 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-07 22:00:40,266 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-07 22:00:40,266 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-11-07 22:00:40,266 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-11-07 22:00:40,266 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-11-07 22:00:40,266 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-07 22:00:40,603 INFO L276 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-07 22:00:40,604 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 10:00:40 BoogieIcfgContainer [2018-11-07 22:00:40,604 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-07 22:00:40,605 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-07 22:00:40,605 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-07 22:00:40,608 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-07 22:00:40,608 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 10:00:39" (1/3) ... [2018-11-07 22:00:40,609 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a8ac0be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 10:00:40, skipping insertion in model container [2018-11-07 22:00:40,609 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:00:40" (2/3) ... [2018-11-07 22:00:40,610 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a8ac0be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 10:00:40, skipping insertion in model container [2018-11-07 22:00:40,610 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 10:00:40" (3/3) ... [2018-11-07 22:00:40,611 INFO L112 eAbstractionObserver]: Analyzing ICFG terminator_01_false-unreach-call_true-termination.i [2018-11-07 22:00:40,620 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-07 22:00:40,627 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-07 22:00:40,640 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-07 22:00:40,672 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-07 22:00:40,672 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-07 22:00:40,672 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-07 22:00:40,673 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-07 22:00:40,673 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-07 22:00:40,673 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-07 22:00:40,673 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-07 22:00:40,673 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-07 22:00:40,691 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states. [2018-11-07 22:00:40,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-11-07 22:00:40,697 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 22:00:40,698 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 22:00:40,700 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 22:00:40,705 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 22:00:40,706 INFO L82 PathProgramCache]: Analyzing trace with hash -1341437314, now seen corresponding path program 1 times [2018-11-07 22:00:40,708 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 22:00:40,753 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 22:00:40,754 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 22:00:40,754 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 22:00:40,754 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 22:00:40,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 22:00:40,836 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 22:00:40,838 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 22:00:40,838 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-07 22:00:40,838 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 22:00:40,843 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-07 22:00:40,857 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-07 22:00:40,858 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-07 22:00:40,860 INFO L87 Difference]: Start difference. First operand 30 states. Second operand 2 states. [2018-11-07 22:00:40,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 22:00:40,884 INFO L93 Difference]: Finished difference Result 44 states and 47 transitions. [2018-11-07 22:00:40,884 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-07 22:00:40,885 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 14 [2018-11-07 22:00:40,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 22:00:40,894 INFO L225 Difference]: With dead ends: 44 [2018-11-07 22:00:40,894 INFO L226 Difference]: Without dead ends: 21 [2018-11-07 22:00:40,898 INFO L604 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 [2018-11-07 22:00:40,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2018-11-07 22:00:40,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2018-11-07 22:00:40,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2018-11-07 22:00:40,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 21 transitions. [2018-11-07 22:00:40,938 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 21 transitions. Word has length 14 [2018-11-07 22:00:40,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 22:00:40,938 INFO L480 AbstractCegarLoop]: Abstraction has 21 states and 21 transitions. [2018-11-07 22:00:40,938 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-07 22:00:40,939 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 21 transitions. [2018-11-07 22:00:40,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-11-07 22:00:40,939 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 22:00:40,940 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 22:00:40,940 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 22:00:40,940 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 22:00:40,940 INFO L82 PathProgramCache]: Analyzing trace with hash -241976908, now seen corresponding path program 1 times [2018-11-07 22:00:40,941 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 22:00:40,942 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 22:00:40,942 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 22:00:40,942 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 22:00:40,942 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 22:00:40,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-07 22:00:40,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-07 22:00:41,007 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-11-07 22:00:41,037 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 10:00:41 BoogieIcfgContainer [2018-11-07 22:00:41,037 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-07 22:00:41,038 INFO L168 Benchmark]: Toolchain (without parser) took 1235.59 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 746.6 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -743.1 MB). Peak memory consumption was 3.5 MB. Max. memory is 7.1 GB. [2018-11-07 22:00:41,041 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. [2018-11-07 22:00:41,041 INFO L168 Benchmark]: CACSL2BoogieTranslator took 287.73 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. [2018-11-07 22:00:41,043 INFO L168 Benchmark]: Boogie Procedure Inliner took 21.43 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. [2018-11-07 22:00:41,043 INFO L168 Benchmark]: Boogie Preprocessor took 25.59 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. [2018-11-07 22:00:41,045 INFO L168 Benchmark]: RCFGBuilder took 463.59 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 746.6 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -797.1 MB). Peak memory consumption was 26.1 MB. Max. memory is 7.1 GB. [2018-11-07 22:00:41,046 INFO L168 Benchmark]: TraceAbstraction took 432.68 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 43.5 MB). Peak memory consumption was 43.5 MB. Max. memory is 7.1 GB. [2018-11-07 22:00:41,052 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 287.73 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 21.43 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 25.59 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 463.59 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 746.6 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -797.1 MB). Peak memory consumption was 26.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 432.68 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 43.5 MB). Peak memory consumption was 43.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 5]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L13] FCALL int x=__VERIFIER_nondet_int(); VAL [x={102:0}] [L13] FCALL int x=__VERIFIER_nondet_int(); VAL [__VERIFIER_nondet_int()=101, x={102:0}] [L14] int *p = &x; VAL [p={102:0}, x={102:0}] [L16] EXPR, FCALL \read(x) VAL [\read(x)=101, p={102:0}, x={102:0}] [L16] COND FALSE !(x<100) [L19] CALL __VERIFIER_assert(0) VAL [\old(cond)=0] [L4] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L5] __VERIFIER_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 30 locations, 1 error locations. UNSAFE Result, 0.3s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 30 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=30occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN 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, 30 NumberOfCodeBlocks, 30 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 13 ConstructedInterpolants, 0 QuantifiedInterpolants, 169 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...