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 -i ../../../trunk/examples/svcomp/loops/array-1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-14 23:15:57,103 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-14 23:15:57,106 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-14 23:15:57,118 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-14 23:15:57,119 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-14 23:15:57,120 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-14 23:15:57,121 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-14 23:15:57,123 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-14 23:15:57,125 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-14 23:15:57,126 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-14 23:15:57,127 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-14 23:15:57,128 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-14 23:15:57,128 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-14 23:15:57,129 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-14 23:15:57,130 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-14 23:15:57,131 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-14 23:15:57,132 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-14 23:15:57,133 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-14 23:15:57,135 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-14 23:15:57,137 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-14 23:15:57,138 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-14 23:15:57,139 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-14 23:15:57,141 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-14 23:15:57,142 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-14 23:15:57,144 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-14 23:15:57,144 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-14 23:15:57,145 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-14 23:15:57,145 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-14 23:15:57,146 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-14 23:15:57,147 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-14 23:15:57,147 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-14 23:15:57,148 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-14 23:15:57,148 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-14 23:15:57,149 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-14 23:15:57,150 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-14 23:15:57,150 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-14 23:15:57,151 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-14 23:15:57,151 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-14 23:15:57,151 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-14 23:15:57,152 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-14 23:15:57,153 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-14 23:15:57,154 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 [2019-10-14 23:15:57,168 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-14 23:15:57,169 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-14 23:15:57,170 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-14 23:15:57,170 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-14 23:15:57,170 INFO L138 SettingsManager]: * Use SBE=true [2019-10-14 23:15:57,171 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-14 23:15:57,171 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-14 23:15:57,171 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-14 23:15:57,171 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-14 23:15:57,171 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-14 23:15:57,172 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-14 23:15:57,172 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-14 23:15:57,172 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-14 23:15:57,172 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-14 23:15:57,172 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-14 23:15:57,173 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-14 23:15:57,173 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-14 23:15:57,173 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-14 23:15:57,173 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-14 23:15:57,173 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-14 23:15:57,174 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-14 23:15:57,174 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-14 23:15:57,174 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-14 23:15:57,175 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-14 23:15:57,176 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-14 23:15:57,176 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-14 23:15:57,176 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-14 23:15:57,176 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-14 23:15:57,176 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-14 23:15:57,523 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-14 23:15:57,540 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-14 23:15:57,543 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-14 23:15:57,545 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-14 23:15:57,546 INFO L275 PluginConnector]: CDTParser initialized [2019-10-14 23:15:57,547 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/array-1.c [2019-10-14 23:15:57,623 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e51aef450/f679352a6666419aa4a5aaefaa01b902/FLAGc842be72d [2019-10-14 23:15:58,077 INFO L306 CDTParser]: Found 1 translation units. [2019-10-14 23:15:58,077 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/array-1.c [2019-10-14 23:15:58,082 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e51aef450/f679352a6666419aa4a5aaefaa01b902/FLAGc842be72d [2019-10-14 23:15:58,467 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e51aef450/f679352a6666419aa4a5aaefaa01b902 [2019-10-14 23:15:58,480 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-14 23:15:58,481 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-14 23:15:58,483 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-14 23:15:58,483 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-14 23:15:58,486 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-14 23:15:58,488 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 11:15:58" (1/1) ... [2019-10-14 23:15:58,491 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@449a522b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:15:58, skipping insertion in model container [2019-10-14 23:15:58,491 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 11:15:58" (1/1) ... [2019-10-14 23:15:58,499 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-14 23:15:58,519 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-14 23:15:58,763 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-14 23:15:58,769 INFO L188 MainTranslator]: Completed pre-run [2019-10-14 23:15:58,803 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-14 23:15:58,914 INFO L192 MainTranslator]: Completed translation [2019-10-14 23:15:58,915 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:15:58 WrapperNode [2019-10-14 23:15:58,915 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-14 23:15:58,917 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-14 23:15:58,917 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-14 23:15:58,917 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-14 23:15:58,932 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:15:58" (1/1) ... [2019-10-14 23:15:58,932 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:15:58" (1/1) ... [2019-10-14 23:15:58,940 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:15:58" (1/1) ... [2019-10-14 23:15:58,943 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:15:58" (1/1) ... [2019-10-14 23:15:58,956 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:15:58" (1/1) ... [2019-10-14 23:15:58,961 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:15:58" (1/1) ... [2019-10-14 23:15:58,962 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:15:58" (1/1) ... [2019-10-14 23:15:58,964 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-14 23:15:58,965 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-14 23:15:58,965 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-14 23:15:58,965 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-14 23:15:58,966 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:15:58" (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 [2019-10-14 23:15:59,026 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-14 23:15:59,027 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-14 23:15:59,027 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-10-14 23:15:59,027 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-14 23:15:59,027 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-14 23:15:59,027 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-10-14 23:15:59,028 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-14 23:15:59,028 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-14 23:15:59,028 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-14 23:15:59,028 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-14 23:15:59,028 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-14 23:15:59,028 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-14 23:15:59,029 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-14 23:15:59,029 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-14 23:15:59,248 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-14 23:15:59,249 INFO L284 CfgBuilder]: Removed 1 assume(true) statements. [2019-10-14 23:15:59,250 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:15:59 BoogieIcfgContainer [2019-10-14 23:15:59,250 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-14 23:15:59,252 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-14 23:15:59,252 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-14 23:15:59,255 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-14 23:15:59,256 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 11:15:58" (1/3) ... [2019-10-14 23:15:59,257 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b8af757 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 11:15:59, skipping insertion in model container [2019-10-14 23:15:59,257 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:15:58" (2/3) ... [2019-10-14 23:15:59,258 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b8af757 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 11:15:59, skipping insertion in model container [2019-10-14 23:15:59,258 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:15:59" (3/3) ... [2019-10-14 23:15:59,260 INFO L109 eAbstractionObserver]: Analyzing ICFG array-1.c [2019-10-14 23:15:59,272 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-14 23:15:59,302 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-14 23:15:59,338 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-14 23:15:59,369 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-14 23:15:59,370 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-14 23:15:59,370 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-14 23:15:59,370 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-14 23:15:59,370 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-14 23:15:59,370 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-14 23:15:59,371 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-14 23:15:59,371 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-14 23:15:59,390 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states. [2019-10-14 23:15:59,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-10-14 23:15:59,400 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:15:59,401 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 23:15:59,403 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:15:59,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:15:59,408 INFO L82 PathProgramCache]: Analyzing trace with hash 202253298, now seen corresponding path program 1 times [2019-10-14 23:15:59,415 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:15:59,416 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [138090851] [2019-10-14 23:15:59,416 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:15:59,416 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:15:59,416 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:15:59,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:15:59,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:15:59,578 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 23:15:59,579 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [138090851] [2019-10-14 23:15:59,580 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:15:59,581 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-14 23:15:59,581 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1851671057] [2019-10-14 23:15:59,585 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-14 23:15:59,585 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:15:59,596 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-14 23:15:59,597 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-14 23:15:59,599 INFO L87 Difference]: Start difference. First operand 22 states. Second operand 3 states. [2019-10-14 23:15:59,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:15:59,684 INFO L93 Difference]: Finished difference Result 35 states and 39 transitions. [2019-10-14 23:15:59,685 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-14 23:15:59,686 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2019-10-14 23:15:59,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:15:59,695 INFO L225 Difference]: With dead ends: 35 [2019-10-14 23:15:59,695 INFO L226 Difference]: Without dead ends: 15 [2019-10-14 23:15:59,699 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-14 23:15:59,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2019-10-14 23:15:59,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2019-10-14 23:15:59,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2019-10-14 23:15:59,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 16 transitions. [2019-10-14 23:15:59,739 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 16 transitions. Word has length 12 [2019-10-14 23:15:59,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:15:59,740 INFO L462 AbstractCegarLoop]: Abstraction has 15 states and 16 transitions. [2019-10-14 23:15:59,740 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-14 23:15:59,740 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 16 transitions. [2019-10-14 23:15:59,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-10-14 23:15:59,741 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:15:59,741 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 23:15:59,742 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:15:59,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:15:59,743 INFO L82 PathProgramCache]: Analyzing trace with hash -112667363, now seen corresponding path program 1 times [2019-10-14 23:15:59,743 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:15:59,743 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1375311252] [2019-10-14 23:15:59,743 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:15:59,744 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:15:59,744 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:15:59,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:15:59,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:15:59,885 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 23:15:59,886 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1375311252] [2019-10-14 23:15:59,886 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:15:59,886 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-14 23:15:59,886 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [673925486] [2019-10-14 23:15:59,888 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-14 23:15:59,889 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:15:59,889 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-14 23:15:59,889 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-14 23:15:59,889 INFO L87 Difference]: Start difference. First operand 15 states and 16 transitions. Second operand 4 states. [2019-10-14 23:15:59,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:15:59,957 INFO L93 Difference]: Finished difference Result 24 states and 26 transitions. [2019-10-14 23:15:59,957 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-14 23:15:59,957 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2019-10-14 23:15:59,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:15:59,958 INFO L225 Difference]: With dead ends: 24 [2019-10-14 23:15:59,959 INFO L226 Difference]: Without dead ends: 18 [2019-10-14 23:15:59,960 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-14 23:15:59,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2019-10-14 23:15:59,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 16. [2019-10-14 23:15:59,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2019-10-14 23:15:59,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 17 transitions. [2019-10-14 23:15:59,966 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 17 transitions. Word has length 12 [2019-10-14 23:15:59,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:15:59,966 INFO L462 AbstractCegarLoop]: Abstraction has 16 states and 17 transitions. [2019-10-14 23:15:59,966 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-14 23:15:59,967 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 17 transitions. [2019-10-14 23:15:59,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-10-14 23:15:59,967 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:15:59,968 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 23:15:59,968 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:15:59,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:15:59,969 INFO L82 PathProgramCache]: Analyzing trace with hash -1912057964, now seen corresponding path program 1 times [2019-10-14 23:15:59,969 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:15:59,969 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [613375410] [2019-10-14 23:15:59,969 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:15:59,970 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:15:59,970 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:16:00,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:16:00,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:16:00,448 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 23:16:00,448 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [613375410] [2019-10-14 23:16:00,448 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [95701779] [2019-10-14 23:16:00,449 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-14 23:16:00,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:16:00,504 INFO L256 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 12 conjunts are in the unsatisfiable core [2019-10-14 23:16:00,513 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-14 23:16:00,617 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-14 23:16:00,618 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-14 23:16:00,635 INFO L567 ElimStorePlain]: treesize reduction 5, result has 82.1 percent of original size [2019-10-14 23:16:00,654 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2019-10-14 23:16:00,655 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-10-14 23:16:00,667 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-14 23:16:00,668 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-10-14 23:16:00,668 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:59, output treesize:5 [2019-10-14 23:16:00,687 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-14 23:16:00,782 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-10-14 23:16:00,783 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 21 [2019-10-14 23:16:00,783 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-14 23:16:00,787 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 2 xjuncts. [2019-10-14 23:16:00,803 INFO L567 ElimStorePlain]: treesize reduction 16, result has 36.0 percent of original size [2019-10-14 23:16:00,805 INFO L496 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-10-14 23:16:00,806 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:31, output treesize:3 [2019-10-14 23:16:00,809 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-14 23:16:00,851 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 23:16:00,852 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-10-14 23:16:00,852 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 8] total 15 [2019-10-14 23:16:00,853 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [752459756] [2019-10-14 23:16:00,854 INFO L442 AbstractCegarLoop]: Interpolant automaton has 15 states [2019-10-14 23:16:00,855 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:16:00,855 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2019-10-14 23:16:00,856 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=173, Unknown=0, NotChecked=0, Total=210 [2019-10-14 23:16:00,856 INFO L87 Difference]: Start difference. First operand 16 states and 17 transitions. Second operand 15 states. [2019-10-14 23:16:01,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:16:01,237 INFO L93 Difference]: Finished difference Result 29 states and 32 transitions. [2019-10-14 23:16:01,237 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-10-14 23:16:01,237 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 15 [2019-10-14 23:16:01,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:16:01,238 INFO L225 Difference]: With dead ends: 29 [2019-10-14 23:16:01,238 INFO L226 Difference]: Without dead ends: 21 [2019-10-14 23:16:01,240 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 122 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=113, Invalid=537, Unknown=0, NotChecked=0, Total=650 [2019-10-14 23:16:01,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2019-10-14 23:16:01,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 19. [2019-10-14 23:16:01,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2019-10-14 23:16:01,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 21 transitions. [2019-10-14 23:16:01,245 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 21 transitions. Word has length 15 [2019-10-14 23:16:01,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:16:01,245 INFO L462 AbstractCegarLoop]: Abstraction has 19 states and 21 transitions. [2019-10-14 23:16:01,246 INFO L463 AbstractCegarLoop]: Interpolant automaton has 15 states. [2019-10-14 23:16:01,246 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions. [2019-10-14 23:16:01,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-10-14 23:16:01,246 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:16:01,247 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 23:16:01,447 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-14 23:16:01,448 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:16:01,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:16:01,448 INFO L82 PathProgramCache]: Analyzing trace with hash 1414989691, now seen corresponding path program 1 times [2019-10-14 23:16:01,448 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:16:01,449 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1018756369] [2019-10-14 23:16:01,450 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:16:01,450 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:16:01,451 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:16:01,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:16:01,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:16:01,621 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 23:16:01,622 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1018756369] [2019-10-14 23:16:01,622 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [496121883] [2019-10-14 23:16:01,622 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-14 23:16:01,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:16:01,669 INFO L256 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 7 conjunts are in the unsatisfiable core [2019-10-14 23:16:01,670 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-14 23:16:01,694 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 23:16:01,695 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-10-14 23:16:01,695 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4] total 7 [2019-10-14 23:16:01,696 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1107817018] [2019-10-14 23:16:01,696 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-14 23:16:01,696 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:16:01,697 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-14 23:16:01,697 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-10-14 23:16:01,697 INFO L87 Difference]: Start difference. First operand 19 states and 21 transitions. Second operand 7 states. [2019-10-14 23:16:01,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:16:01,721 INFO L93 Difference]: Finished difference Result 21 states and 23 transitions. [2019-10-14 23:16:01,722 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-14 23:16:01,722 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 18 [2019-10-14 23:16:01,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:16:01,723 INFO L225 Difference]: With dead ends: 21 [2019-10-14 23:16:01,723 INFO L226 Difference]: Without dead ends: 0 [2019-10-14 23:16:01,724 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 18 SyntacticMatches, 2 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-10-14 23:16:01,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-14 23:16:01,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-14 23:16:01,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-14 23:16:01,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-14 23:16:01,725 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2019-10-14 23:16:01,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:16:01,725 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-14 23:16:01,726 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-14 23:16:01,726 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-14 23:16:01,726 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-14 23:16:01,930 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-14 23:16:01,939 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-14 23:16:02,110 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2019-10-14 23:16:02,110 INFO L439 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|)) [2019-10-14 23:16:02,111 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-10-14 23:16:02,111 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-14 23:16:02,111 INFO L446 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2019-10-14 23:16:02,111 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-10-14 23:16:02,111 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-14 23:16:02,112 INFO L439 ceAbstractionStarter]: At program point mainENTRY(lines 11 29) the Hoare annotation is: (= |#valid| |old(#valid)|) [2019-10-14 23:16:02,112 INFO L439 ceAbstractionStarter]: At program point L26(line 26) the Hoare annotation is: (and (= main_~SIZE~0 1) (exists ((main_~j~0 Int)) (let ((.cse0 (mod main_~j~0 4294967296))) (and (< .cse0 1) (<= .cse0 2147483647) (<= main_~menor~0 (select (select |#memory_int| |main_~#array~0.base|) (+ (* .cse0 4) |main_~#array~0.offset|)))))) (<= main_~menor~0 |main_#t~mem5|)) [2019-10-14 23:16:02,112 INFO L443 ceAbstractionStarter]: For program point L26-1(line 26) no Hoare annotation was computed. [2019-10-14 23:16:02,112 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 11 29) no Hoare annotation was computed. [2019-10-14 23:16:02,112 INFO L443 ceAbstractionStarter]: For program point L22(lines 22 23) no Hoare annotation was computed. [2019-10-14 23:16:02,113 INFO L443 ceAbstractionStarter]: For program point L19-2(lines 19 24) no Hoare annotation was computed. [2019-10-14 23:16:02,113 INFO L439 ceAbstractionStarter]: At program point L19-3(lines 19 24) the Hoare annotation is: (let ((.cse0 (= main_~SIZE~0 1))) (or (and (and .cse0 (exists ((main_~j~0 Int)) (let ((.cse1 (mod main_~j~0 4294967296))) (and (< .cse1 1) (<= .cse1 2147483647) (<= main_~menor~0 (select (select |#memory_int| |main_~#array~0.base|) (+ (* .cse1 4) |main_~#array~0.offset|))))))) (= main_~j~0 1)) (and .cse0 (= 0 |main_~#array~0.offset|) (= main_~j~0 0)))) [2019-10-14 23:16:02,113 INFO L443 ceAbstractionStarter]: For program point L19-4(lines 19 24) no Hoare annotation was computed. [2019-10-14 23:16:02,113 INFO L443 ceAbstractionStarter]: For program point mainFINAL(lines 11 29) no Hoare annotation was computed. [2019-10-14 23:16:02,113 INFO L446 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(lines 3 8) the Hoare annotation is: true [2019-10-14 23:16:02,114 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2019-10-14 23:16:02,114 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(lines 3 8) no Hoare annotation was computed. [2019-10-14 23:16:02,114 INFO L443 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2019-10-14 23:16:02,114 INFO L443 ceAbstractionStarter]: For program point L4(lines 4 6) no Hoare annotation was computed. [2019-10-14 23:16:02,114 INFO L443 ceAbstractionStarter]: For program point L4-2(lines 3 8) no Hoare annotation was computed. [2019-10-14 23:16:02,132 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~j~0,QUANTIFIED] [2019-10-14 23:16:02,133 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~j~0,QUANTIFIED] [2019-10-14 23:16:02,134 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~j~0,QUANTIFIED] [2019-10-14 23:16:02,136 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-10-14 23:16:02,141 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~j~0,QUANTIFIED] [2019-10-14 23:16:02,142 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~j~0,QUANTIFIED] [2019-10-14 23:16:02,142 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~j~0,QUANTIFIED] [2019-10-14 23:16:02,143 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-10-14 23:16:02,160 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.10 11:16:02 BoogieIcfgContainer [2019-10-14 23:16:02,160 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-14 23:16:02,165 INFO L168 Benchmark]: Toolchain (without parser) took 3681.04 ms. Allocated memory was 137.4 MB in the beginning and 230.7 MB in the end (delta: 93.3 MB). Free memory was 101.9 MB in the beginning and 84.2 MB in the end (delta: 17.7 MB). Peak memory consumption was 111.1 MB. Max. memory is 7.1 GB. [2019-10-14 23:16:02,166 INFO L168 Benchmark]: CDTParser took 0.58 ms. Allocated memory is still 137.4 MB. Free memory was 120.6 MB in the beginning and 120.4 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-10-14 23:16:02,167 INFO L168 Benchmark]: CACSL2BoogieTranslator took 433.10 ms. Allocated memory was 137.4 MB in the beginning and 198.7 MB in the end (delta: 61.3 MB). Free memory was 101.7 MB in the beginning and 178.9 MB in the end (delta: -77.2 MB). Peak memory consumption was 23.3 MB. Max. memory is 7.1 GB. [2019-10-14 23:16:02,169 INFO L168 Benchmark]: Boogie Preprocessor took 47.81 ms. Allocated memory is still 198.7 MB. Free memory was 178.0 MB in the beginning and 176.2 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 7.1 GB. [2019-10-14 23:16:02,170 INFO L168 Benchmark]: RCFGBuilder took 285.81 ms. Allocated memory is still 198.7 MB. Free memory was 176.2 MB in the beginning and 162.3 MB in the end (delta: 14.0 MB). Peak memory consumption was 14.0 MB. Max. memory is 7.1 GB. [2019-10-14 23:16:02,172 INFO L168 Benchmark]: TraceAbstraction took 2908.56 ms. Allocated memory was 198.7 MB in the beginning and 230.7 MB in the end (delta: 32.0 MB). Free memory was 161.6 MB in the beginning and 84.2 MB in the end (delta: 77.4 MB). Peak memory consumption was 109.4 MB. Max. memory is 7.1 GB. [2019-10-14 23:16:02,180 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.58 ms. Allocated memory is still 137.4 MB. Free memory was 120.6 MB in the beginning and 120.4 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 433.10 ms. Allocated memory was 137.4 MB in the beginning and 198.7 MB in the end (delta: 61.3 MB). Free memory was 101.7 MB in the beginning and 178.9 MB in the end (delta: -77.2 MB). Peak memory consumption was 23.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 47.81 ms. Allocated memory is still 198.7 MB. Free memory was 178.0 MB in the beginning and 176.2 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 285.81 ms. Allocated memory is still 198.7 MB. Free memory was 176.2 MB in the beginning and 162.3 MB in the end (delta: 14.0 MB). Peak memory consumption was 14.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2908.56 ms. Allocated memory was 198.7 MB in the beginning and 230.7 MB in the end (delta: 32.0 MB). Free memory was 161.6 MB in the beginning and 84.2 MB in the end (delta: 77.4 MB). Peak memory consumption was 109.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~j~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~j~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~j~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~j~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~j~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~j~0,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 5]: 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 [2019-10-14 23:16:02,191 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~j~0,QUANTIFIED] [2019-10-14 23:16:02,191 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~j~0,QUANTIFIED] [2019-10-14 23:16:02,192 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~j~0,QUANTIFIED] [2019-10-14 23:16:02,192 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-10-14 23:16:02,194 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~j~0,QUANTIFIED] [2019-10-14 23:16:02,194 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~j~0,QUANTIFIED] [2019-10-14 23:16:02,194 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~j~0,QUANTIFIED] [2019-10-14 23:16:02,194 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int Derived loop invariant: ((SIZE == 1 && (\exists main_~j~0 : int :: (main_~j~0 % 4294967296 < 1 && main_~j~0 % 4294967296 <= 2147483647) && menor <= unknown-#memory_int-unknown[array][main_~j~0 % 4294967296 * 4 + array])) && j == 1) || ((SIZE == 1 && 0 == array) && j == 0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 22 locations, 1 error locations. Result: SAFE, OverallTime: 2.7s, OverallIterations: 4, TraceHistogramMax: 2, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, HoareTripleCheckerStatistics: 44 SDtfs, 34 SDslu, 59 SDs, 0 SdLazy, 143 SolverSat, 23 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 70 GetRequests, 36 SyntacticMatches, 2 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 123 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=22occurred 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, 4 MinimizatonAttempts, 4 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 11 PreInvPairs, 15 NumberOfFragments, 92 HoareAnnotationTreeSize, 11 FomulaSimplifications, 3 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 65 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 90 NumberOfCodeBlocks, 90 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 84 ConstructedInterpolants, 3 QuantifiedInterpolants, 5251 SizeOfPredicates, 9 NumberOfNonLiveVariables, 141 ConjunctsInSsa, 19 ConjunctsInUnsatCore, 6 InterpolantComputations, 2 PerfectInterpolantSequences, 8/12 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...