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/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --abstractinterpretationv2.abstract.domain IntervalDomain --traceabstraction.trace.refinement.strategy TAIPAN --traceabstraction.abstract.interpretation.mode USE_PREDICATES -i ../../../trunk/examples/svcomp/loop-crafted/simple_vardep_1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 01:04:44,836 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 01:04:44,839 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 01:04:44,858 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 01:04:44,859 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 01:04:44,861 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 01:04:44,863 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 01:04:44,875 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 01:04:44,877 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 01:04:44,878 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 01:04:44,879 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 01:04:44,880 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 01:04:44,880 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 01:04:44,881 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 01:04:44,882 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 01:04:44,883 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 01:04:44,884 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 01:04:44,885 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 01:04:44,886 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 01:04:44,888 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 01:04:44,889 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 01:04:44,890 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 01:04:44,893 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 01:04:44,893 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 01:04:44,895 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-10-15 01:04:44,901 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-15 01:04:44,902 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-15 01:04:44,905 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-15 01:04:44,906 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-15 01:04:44,907 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-15 01:04:44,907 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-15 01:04:44,908 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-15 01:04:44,908 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-15 01:04:44,908 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 01:04:44,909 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 01:04:44,913 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 01:04:44,916 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-15 01:04:44,940 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 01:04:44,941 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 01:04:44,942 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 01:04:44,943 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 01:04:44,943 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 01:04:44,943 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 01:04:44,943 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 01:04:44,944 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 01:04:44,944 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 01:04:44,944 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 01:04:44,945 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 01:04:44,945 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 01:04:44,945 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 01:04:44,946 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 01:04:44,946 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 01:04:44,946 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 01:04:44,947 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 01:04:44,947 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 01:04:44,947 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 01:04:44,947 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 01:04:44,948 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 01:04:44,948 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 01:04:44,948 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 01:04:44,948 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 01:04:44,949 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 01:04:44,949 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 01:04:44,949 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 01:04:44,949 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 01:04:44,949 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: Abstract domain -> IntervalDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Abstract interpretation Mode -> USE_PREDICATES [2019-10-15 01:04:45,219 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 01:04:45,240 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 01:04:45,244 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 01:04:45,245 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 01:04:45,246 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 01:04:45,246 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-crafted/simple_vardep_1.c [2019-10-15 01:04:45,324 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d75fe5157/26f219489c144d88a9fccdfd56054dbd/FLAG336fd66c4 [2019-10-15 01:04:45,799 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 01:04:45,799 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-crafted/simple_vardep_1.c [2019-10-15 01:04:45,806 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d75fe5157/26f219489c144d88a9fccdfd56054dbd/FLAG336fd66c4 [2019-10-15 01:04:46,233 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d75fe5157/26f219489c144d88a9fccdfd56054dbd [2019-10-15 01:04:46,246 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 01:04:46,248 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 01:04:46,249 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 01:04:46,249 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 01:04:46,252 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 01:04:46,254 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:04:46" (1/1) ... [2019-10-15 01:04:46,257 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@26a7327f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:04:46, skipping insertion in model container [2019-10-15 01:04:46,257 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:04:46" (1/1) ... [2019-10-15 01:04:46,265 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 01:04:46,281 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 01:04:46,474 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:04:46,484 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 01:04:46,501 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:04:46,514 INFO L192 MainTranslator]: Completed translation [2019-10-15 01:04:46,514 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:04:46 WrapperNode [2019-10-15 01:04:46,515 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 01:04:46,515 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 01:04:46,515 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 01:04:46,515 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 01:04:46,606 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:04:46" (1/1) ... [2019-10-15 01:04:46,607 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:04:46" (1/1) ... [2019-10-15 01:04:46,613 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:04:46" (1/1) ... [2019-10-15 01:04:46,614 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:04:46" (1/1) ... [2019-10-15 01:04:46,618 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:04:46" (1/1) ... [2019-10-15 01:04:46,621 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:04:46" (1/1) ... [2019-10-15 01:04:46,622 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:04:46" (1/1) ... [2019-10-15 01:04:46,623 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 01:04:46,624 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 01:04:46,624 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 01:04:46,624 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 01:04:46,625 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:04:46" (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 [2019-10-15 01:04:46,675 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 01:04:46,675 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 01:04:46,675 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-10-15 01:04:46,675 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 01:04:46,676 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 01:04:46,676 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-10-15 01:04:46,676 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 01:04:46,676 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 01:04:46,676 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 01:04:46,824 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 01:04:46,824 INFO L284 CfgBuilder]: Removed 1 assume(true) statements. [2019-10-15 01:04:46,826 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:04:46 BoogieIcfgContainer [2019-10-15 01:04:46,826 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 01:04:46,827 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 01:04:46,827 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 01:04:46,830 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 01:04:46,831 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 01:04:46" (1/3) ... [2019-10-15 01:04:46,831 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6290b167 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:04:46, skipping insertion in model container [2019-10-15 01:04:46,832 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:04:46" (2/3) ... [2019-10-15 01:04:46,832 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6290b167 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:04:46, skipping insertion in model container [2019-10-15 01:04:46,832 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:04:46" (3/3) ... [2019-10-15 01:04:46,834 INFO L109 eAbstractionObserver]: Analyzing ICFG simple_vardep_1.c [2019-10-15 01:04:46,845 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 01:04:46,853 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 01:04:46,864 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 01:04:46,889 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 01:04:46,889 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 01:04:46,889 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 01:04:46,889 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 01:04:46,889 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 01:04:46,890 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 01:04:46,890 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 01:04:46,890 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 01:04:46,908 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states. [2019-10-15 01:04:46,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-10-15 01:04:46,914 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:04:46,915 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:04:46,917 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:04:46,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:04:46,921 INFO L82 PathProgramCache]: Analyzing trace with hash 1847991872, now seen corresponding path program 1 times [2019-10-15 01:04:46,929 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:04:46,929 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [461434381] [2019-10-15 01:04:46,930 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:04:46,930 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:04:46,930 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:04:47,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:04:47,305 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 18 [2019-10-15 01:04:47,348 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 01:04:47,349 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [461434381] [2019-10-15 01:04:47,350 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:04:47,350 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-15 01:04:47,351 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1301655035] [2019-10-15 01:04:47,355 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-15 01:04:47,357 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:04:47,372 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-15 01:04:47,373 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-10-15 01:04:47,375 INFO L87 Difference]: Start difference. First operand 17 states. Second operand 6 states. [2019-10-15 01:04:47,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:04:47,453 INFO L93 Difference]: Finished difference Result 27 states and 32 transitions. [2019-10-15 01:04:47,454 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-15 01:04:47,456 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 10 [2019-10-15 01:04:47,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:04:47,463 INFO L225 Difference]: With dead ends: 27 [2019-10-15 01:04:47,463 INFO L226 Difference]: Without dead ends: 0 [2019-10-15 01:04:47,467 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2019-10-15 01:04:47,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-15 01:04:47,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-15 01:04:47,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-15 01:04:47,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-15 01:04:47,496 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 10 [2019-10-15 01:04:47,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:04:47,497 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-15 01:04:47,497 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-15 01:04:47,497 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-15 01:04:47,498 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-15 01:04:47,503 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-15 01:04:47,539 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2019-10-15 01:04:47,539 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-10-15 01:04:47,539 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-15 01:04:47,539 INFO L446 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2019-10-15 01:04:47,540 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-10-15 01:04:47,540 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-15 01:04:47,540 INFO L446 ceAbstractionStarter]: At program point mainENTRY(lines 13 27) the Hoare annotation is: true [2019-10-15 01:04:47,540 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 13 27) no Hoare annotation was computed. [2019-10-15 01:04:47,541 INFO L439 ceAbstractionStarter]: At program point L24(line 24) the Hoare annotation is: (let ((.cse0 (+ main_~i~0 main_~j~0))) (and (<= .cse0 main_~k~0) (<= main_~k~0 .cse0))) [2019-10-15 01:04:47,541 INFO L439 ceAbstractionStarter]: At program point L24-1(lines 19 25) the Hoare annotation is: (let ((.cse0 (+ main_~i~0 main_~j~0))) (and (<= .cse0 main_~k~0) (<= main_~k~0 .cse0))) [2019-10-15 01:04:47,541 INFO L443 ceAbstractionStarter]: For program point L19-2(lines 13 27) no Hoare annotation was computed. [2019-10-15 01:04:47,542 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 8) no Hoare annotation was computed. [2019-10-15 01:04:47,542 INFO L446 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(lines 5 11) the Hoare annotation is: true [2019-10-15 01:04:47,542 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(lines 5 11) no Hoare annotation was computed. [2019-10-15 01:04:47,542 INFO L443 ceAbstractionStarter]: For program point L8(line 8) no Hoare annotation was computed. [2019-10-15 01:04:47,542 INFO L443 ceAbstractionStarter]: For program point L7(lines 7 9) no Hoare annotation was computed. [2019-10-15 01:04:47,543 INFO L443 ceAbstractionStarter]: For program point L7-2(lines 5 11) no Hoare annotation was computed. [2019-10-15 01:04:47,557 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 01:04:47 BoogieIcfgContainer [2019-10-15 01:04:47,558 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-15 01:04:47,560 INFO L168 Benchmark]: Toolchain (without parser) took 1311.79 ms. Allocated memory was 138.9 MB in the beginning and 202.4 MB in the end (delta: 63.4 MB). Free memory was 102.4 MB in the beginning and 134.1 MB in the end (delta: -31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. [2019-10-15 01:04:47,561 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 138.9 MB. Free memory was 120.9 MB in the beginning and 120.7 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2019-10-15 01:04:47,562 INFO L168 Benchmark]: CACSL2BoogieTranslator took 266.12 ms. Allocated memory is still 138.9 MB. Free memory was 102.2 MB in the beginning and 92.9 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 7.1 GB. [2019-10-15 01:04:47,564 INFO L168 Benchmark]: Boogie Preprocessor took 108.03 ms. Allocated memory was 138.9 MB in the beginning and 202.4 MB in the end (delta: 63.4 MB). Free memory was 92.9 MB in the beginning and 181.2 MB in the end (delta: -88.3 MB). Peak memory consumption was 13.8 MB. Max. memory is 7.1 GB. [2019-10-15 01:04:47,565 INFO L168 Benchmark]: RCFGBuilder took 202.37 ms. Allocated memory is still 202.4 MB. Free memory was 181.2 MB in the beginning and 170.8 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 7.1 GB. [2019-10-15 01:04:47,566 INFO L168 Benchmark]: TraceAbstraction took 730.80 ms. Allocated memory is still 202.4 MB. Free memory was 170.8 MB in the beginning and 134.1 MB in the end (delta: 36.6 MB). Peak memory consumption was 36.6 MB. Max. memory is 7.1 GB. [2019-10-15 01:04:47,570 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 138.9 MB. Free memory was 120.9 MB in the beginning and 120.7 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 266.12 ms. Allocated memory is still 138.9 MB. Free memory was 102.2 MB in the beginning and 92.9 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 108.03 ms. Allocated memory was 138.9 MB in the beginning and 202.4 MB in the end (delta: 63.4 MB). Free memory was 92.9 MB in the beginning and 181.2 MB in the end (delta: -88.3 MB). Peak memory consumption was 13.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 202.37 ms. Allocated memory is still 202.4 MB. Free memory was 181.2 MB in the beginning and 170.8 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 730.80 ms. Allocated memory is still 202.4 MB. Free memory was 170.8 MB in the beginning and 134.1 MB in the end (delta: 36.6 MB). Peak memory consumption was 36.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 8]: 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 - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: i + j <= k && k <= i + j - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 17 locations, 1 error locations. Result: SAFE, OverallTime: 0.6s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 10 SDtfs, 7 SDslu, 33 SDs, 0 SdLazy, 15 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=17occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 8 PreInvPairs, 10 NumberOfFragments, 27 HoareAnnotationTreeSize, 8 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 10 NumberOfCodeBlocks, 10 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 603 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...