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-lit/mcmillan2006.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 21:06:41,376 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 21:06:41,379 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 21:06:41,391 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 21:06:41,391 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 21:06:41,392 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 21:06:41,394 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 21:06:41,396 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 21:06:41,398 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 21:06:41,399 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 21:06:41,400 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 21:06:41,401 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 21:06:41,401 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 21:06:41,403 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 21:06:41,404 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 21:06:41,405 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 21:06:41,406 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 21:06:41,407 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 21:06:41,409 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 21:06:41,411 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 21:06:41,413 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 21:06:41,414 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 21:06:41,416 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 21:06:41,417 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 21:06:41,419 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-10-13 21:06:41,423 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 21:06:41,424 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 21:06:41,425 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 21:06:41,426 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 21:06:41,427 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 21:06:41,427 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 21:06:41,428 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 21:06:41,428 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 21:06:41,428 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 21:06:41,429 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 21:06:41,430 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 21:06:41,433 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 [2019-10-13 21:06:41,448 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 21:06:41,449 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 21:06:41,450 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 21:06:41,450 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 21:06:41,450 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 21:06:41,451 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 21:06:41,451 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 21:06:41,451 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 21:06:41,451 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 21:06:41,452 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 21:06:41,452 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 21:06:41,452 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 21:06:41,452 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 21:06:41,452 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 21:06:41,453 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 21:06:41,453 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 21:06:41,453 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 21:06:41,453 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 21:06:41,453 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 21:06:41,454 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 21:06:41,454 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 21:06:41,454 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 21:06:41,454 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 21:06:41,455 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 21:06:41,455 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 21:06:41,455 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 21:06:41,455 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 21:06:41,455 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 21:06:41,456 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 [2019-10-13 21:06:41,741 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 21:06:41,755 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 21:06:41,759 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 21:06:41,760 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 21:06:41,761 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 21:06:41,762 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-lit/mcmillan2006.i [2019-10-13 21:06:41,829 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9f89f02d8/758c6d0e92bc4478912dc9fe2e7d4e85/FLAGa76209766 [2019-10-13 21:06:42,385 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 21:06:42,387 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-lit/mcmillan2006.i [2019-10-13 21:06:42,395 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9f89f02d8/758c6d0e92bc4478912dc9fe2e7d4e85/FLAGa76209766 [2019-10-13 21:06:42,778 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9f89f02d8/758c6d0e92bc4478912dc9fe2e7d4e85 [2019-10-13 21:06:42,790 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 21:06:42,792 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 21:06:42,793 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 21:06:42,793 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 21:06:42,797 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 21:06:42,799 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:06:42" (1/1) ... [2019-10-13 21:06:42,802 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a7ec095 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:06:42, skipping insertion in model container [2019-10-13 21:06:42,803 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:06:42" (1/1) ... [2019-10-13 21:06:42,811 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 21:06:42,830 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 21:06:43,067 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 21:06:43,079 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 21:06:43,094 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 21:06:43,108 INFO L192 MainTranslator]: Completed translation [2019-10-13 21:06:43,108 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:06:43 WrapperNode [2019-10-13 21:06:43,109 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 21:06:43,109 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 21:06:43,109 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 21:06:43,109 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 21:06:43,203 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:06:43" (1/1) ... [2019-10-13 21:06:43,203 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:06:43" (1/1) ... [2019-10-13 21:06:43,212 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:06:43" (1/1) ... [2019-10-13 21:06:43,214 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:06:43" (1/1) ... [2019-10-13 21:06:43,232 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:06:43" (1/1) ... [2019-10-13 21:06:43,236 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:06:43" (1/1) ... [2019-10-13 21:06:43,237 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:06:43" (1/1) ... [2019-10-13 21:06:43,239 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 21:06:43,240 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 21:06:43,240 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 21:06:43,240 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 21:06:43,241 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:06:43" (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 [2019-10-13 21:06:43,301 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 21:06:43,301 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 21:06:43,301 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-10-13 21:06:43,301 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 21:06:43,301 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 21:06:43,302 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 21:06:43,302 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-10-13 21:06:43,302 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-10-13 21:06:43,302 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 21:06:43,302 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 21:06:43,302 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 21:06:43,303 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 21:06:43,303 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 21:06:43,303 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 21:06:43,303 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 21:06:43,303 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 21:06:43,565 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 21:06:43,565 INFO L284 CfgBuilder]: Removed 2 assume(true) statements. [2019-10-13 21:06:43,575 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:06:43 BoogieIcfgContainer [2019-10-13 21:06:43,575 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 21:06:43,576 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 21:06:43,577 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 21:06:43,583 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 21:06:43,584 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 09:06:42" (1/3) ... [2019-10-13 21:06:43,588 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b3f2e14 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:06:43, skipping insertion in model container [2019-10-13 21:06:43,589 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:06:43" (2/3) ... [2019-10-13 21:06:43,592 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b3f2e14 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:06:43, skipping insertion in model container [2019-10-13 21:06:43,593 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:06:43" (3/3) ... [2019-10-13 21:06:43,596 INFO L109 eAbstractionObserver]: Analyzing ICFG mcmillan2006.i [2019-10-13 21:06:43,617 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 21:06:43,624 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 21:06:43,644 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 21:06:43,672 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 21:06:43,672 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 21:06:43,672 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 21:06:43,672 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 21:06:43,672 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 21:06:43,673 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 21:06:43,673 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 21:06:43,673 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 21:06:43,695 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states. [2019-10-13 21:06:43,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-10-13 21:06:43,701 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:06:43,702 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:06:43,704 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:06:43,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:06:43,710 INFO L82 PathProgramCache]: Analyzing trace with hash -1448943433, now seen corresponding path program 1 times [2019-10-13 21:06:43,720 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:06:43,721 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [452616122] [2019-10-13 21:06:43,721 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:06:43,721 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:06:43,722 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:06:43,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:06:43,850 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 21:06:43,851 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [452616122] [2019-10-13 21:06:43,852 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:06:43,852 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-13 21:06:43,852 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [471413004] [2019-10-13 21:06:43,857 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-13 21:06:43,859 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:06:43,874 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-13 21:06:43,875 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 21:06:43,877 INFO L87 Difference]: Start difference. First operand 25 states. Second operand 2 states. [2019-10-13 21:06:43,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:06:43,903 INFO L93 Difference]: Finished difference Result 41 states and 49 transitions. [2019-10-13 21:06:43,903 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-13 21:06:43,904 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 14 [2019-10-13 21:06:43,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:06:43,913 INFO L225 Difference]: With dead ends: 41 [2019-10-13 21:06:43,913 INFO L226 Difference]: Without dead ends: 20 [2019-10-13 21:06:43,916 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 21:06:43,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2019-10-13 21:06:43,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2019-10-13 21:06:43,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2019-10-13 21:06:43,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 21 transitions. [2019-10-13 21:06:43,956 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 21 transitions. Word has length 14 [2019-10-13 21:06:43,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:06:43,957 INFO L462 AbstractCegarLoop]: Abstraction has 20 states and 21 transitions. [2019-10-13 21:06:43,957 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-13 21:06:43,957 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 21 transitions. [2019-10-13 21:06:43,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-10-13 21:06:43,959 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:06:43,959 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:06:43,959 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:06:43,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:06:43,960 INFO L82 PathProgramCache]: Analyzing trace with hash 1815969073, now seen corresponding path program 1 times [2019-10-13 21:06:43,960 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:06:43,960 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2005123058] [2019-10-13 21:06:43,961 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:06:43,961 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:06:43,961 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:06:43,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:06:44,098 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 21:06:44,099 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2005123058] [2019-10-13 21:06:44,099 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:06:44,099 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-13 21:06:44,100 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1465401619] [2019-10-13 21:06:44,101 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-13 21:06:44,102 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:06:44,102 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-13 21:06:44,103 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-10-13 21:06:44,103 INFO L87 Difference]: Start difference. First operand 20 states and 21 transitions. Second operand 5 states. [2019-10-13 21:06:44,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:06:44,183 INFO L93 Difference]: Finished difference Result 34 states and 36 transitions. [2019-10-13 21:06:44,184 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-13 21:06:44,184 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2019-10-13 21:06:44,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:06:44,185 INFO L225 Difference]: With dead ends: 34 [2019-10-13 21:06:44,185 INFO L226 Difference]: Without dead ends: 22 [2019-10-13 21:06:44,186 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-10-13 21:06:44,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2019-10-13 21:06:44,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 21. [2019-10-13 21:06:44,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2019-10-13 21:06:44,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 22 transitions. [2019-10-13 21:06:44,193 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 22 transitions. Word has length 14 [2019-10-13 21:06:44,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:06:44,193 INFO L462 AbstractCegarLoop]: Abstraction has 21 states and 22 transitions. [2019-10-13 21:06:44,193 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-13 21:06:44,193 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 22 transitions. [2019-10-13 21:06:44,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-10-13 21:06:44,194 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:06:44,195 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:06:44,195 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:06:44,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:06:44,195 INFO L82 PathProgramCache]: Analyzing trace with hash 1419508495, now seen corresponding path program 1 times [2019-10-13 21:06:44,196 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:06:44,196 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [523245175] [2019-10-13 21:06:44,196 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:06:44,196 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:06:44,197 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:06:44,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:06:44,519 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 21:06:44,520 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [523245175] [2019-10-13 21:06:44,520 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1138921848] [2019-10-13 21:06:44,520 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 [2019-10-13 21:06:44,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:06:44,603 INFO L256 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 13 conjunts are in the unsatisfiable core [2019-10-13 21:06:44,612 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 21:06:44,698 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 11 treesize of output 7 [2019-10-13 21:06:44,698 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-13 21:06:44,705 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-13 21:06:44,705 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-10-13 21:06:44,705 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:11, output treesize:7 [2019-10-13 21:06:44,765 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2019-10-13 21:06:44,766 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-13 21:06:44,771 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-13 21:06:44,771 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-10-13 21:06:44,771 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:15, output treesize:3 [2019-10-13 21:06:44,808 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 21:06:44,809 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 21:06:44,867 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 12 [2019-10-13 21:06:44,876 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 20 [2019-10-13 21:06:44,877 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-10-13 21:06:44,880 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-13 21:06:44,881 INFO L496 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-10-13 21:06:44,883 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-13 21:06:44,884 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-10-13 21:06:44,884 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:14, output treesize:7 [2019-10-13 21:06:44,905 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 21:06:44,906 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleAbstractInterpretation [1054008297] [2019-10-13 21:06:44,922 INFO L211 CegarAbsIntRunner]: Running AI on error trace of length 17 [2019-10-13 21:06:44,957 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-10-13 21:06:44,957 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-10-13 21:06:45,023 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-10-13 21:06:45,025 INFO L272 AbstractInterpreter]: Visited 7 different actions 7 times. Never merged. Never widened. Performed 18 root evaluator evaluations with a maximum evaluation depth of 4. Performed 18 inverse root evaluator evaluations with a maximum inverse evaluation depth of 4. Never found a fixpoint. Largest state had 22 variables. [2019-10-13 21:06:45,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:06:45,028 INFO L536 sIntCurrentIteration]: Generating AbsInt predicates [2019-10-13 21:06:45,066 INFO L227 lantSequenceWeakener]: Weakened 5 states. On average, predicates are now at 96% of their original sizes. [2019-10-13 21:06:45,066 INFO L551 sIntCurrentIteration]: Unifying AI predicates [2019-10-13 21:06:45,075 INFO L553 sIntCurrentIteration]: We unified 15 AI predicates to 15 [2019-10-13 21:06:45,076 INFO L562 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-10-13 21:06:45,076 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 3 imperfect interpolant sequences. [2019-10-13 21:06:45,077 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [10, 8, 8] total 17 [2019-10-13 21:06:45,077 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1959940643] [2019-10-13 21:06:45,077 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 21:06:45,078 INFO L137 tionRefinementEngine]: Using predicate unifier AbsIntPredicateUnifier provided by strategy TAIPAN [2019-10-13 21:06:45,078 INFO L124 tionRefinementEngine]: Using hoare triple checker CachingHoareTripleCheckerMap provided by strategy [2019-10-13 21:06:45,079 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 21:06:45,079 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:06:45,079 INFO L87 Difference]: Start difference. First operand 21 states and 22 transitions. Second operand 3 states. [2019-10-13 21:06:45,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:06:45,081 INFO L93 Difference]: Finished difference Result 21 states and 22 transitions. [2019-10-13 21:06:45,081 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 21:06:45,082 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 16 [2019-10-13 21:06:45,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:06:45,082 INFO L225 Difference]: With dead ends: 21 [2019-10-13 21:06:45,082 INFO L226 Difference]: Without dead ends: 0 [2019-10-13 21:06:45,083 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:06:45,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-13 21:06:45,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-13 21:06:45,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-13 21:06:45,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-13 21:06:45,084 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 16 [2019-10-13 21:06:45,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:06:45,084 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-13 21:06:45,084 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 21:06:45,084 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-13 21:06:45,085 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-13 21:06:45,288 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 21:06:45,293 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-13 21:06:45,333 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2019-10-13 21:06:45,334 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2019-10-13 21:06:45,334 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-10-13 21:06:45,334 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-13 21:06:45,334 INFO L446 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2019-10-13 21:06:45,334 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-10-13 21:06:45,334 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-13 21:06:45,335 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 12 19) no Hoare annotation was computed. [2019-10-13 21:06:45,335 INFO L439 ceAbstractionStarter]: At program point L17-2(line 17) the Hoare annotation is: false [2019-10-13 21:06:45,335 INFO L443 ceAbstractionStarter]: For program point L17-3(line 17) no Hoare annotation was computed. [2019-10-13 21:06:45,335 INFO L443 ceAbstractionStarter]: For program point L17-4(line 17) no Hoare annotation was computed. [2019-10-13 21:06:45,337 INFO L443 ceAbstractionStarter]: For program point mainFINAL(lines 12 19) no Hoare annotation was computed. [2019-10-13 21:06:45,337 INFO L439 ceAbstractionStarter]: At program point L17-5(line 17) the Hoare annotation is: (and (<= main_~n~0 0) (= main_~i~1 0) (= main_~i~0 0)) [2019-10-13 21:06:45,337 INFO L443 ceAbstractionStarter]: For program point L17-6(line 17) no Hoare annotation was computed. [2019-10-13 21:06:45,337 INFO L446 ceAbstractionStarter]: At program point mainENTRY(lines 12 19) the Hoare annotation is: true [2019-10-13 21:06:45,338 INFO L443 ceAbstractionStarter]: For program point L14(line 14) no Hoare annotation was computed. [2019-10-13 21:06:45,338 INFO L443 ceAbstractionStarter]: For program point L16-2(line 16) no Hoare annotation was computed. [2019-10-13 21:06:45,338 INFO L439 ceAbstractionStarter]: At program point L16-3(line 16) the Hoare annotation is: false [2019-10-13 21:06:45,338 INFO L443 ceAbstractionStarter]: For program point L16-4(line 16) no Hoare annotation was computed. [2019-10-13 21:06:45,338 INFO L446 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(lines 4 9) the Hoare annotation is: true [2019-10-13 21:06:45,338 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(lines 4 9) no Hoare annotation was computed. [2019-10-13 21:06:45,338 INFO L443 ceAbstractionStarter]: For program point L6(line 6) no Hoare annotation was computed. [2019-10-13 21:06:45,339 INFO L443 ceAbstractionStarter]: For program point L5(lines 5 7) no Hoare annotation was computed. [2019-10-13 21:06:45,339 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 6) no Hoare annotation was computed. [2019-10-13 21:06:45,339 INFO L443 ceAbstractionStarter]: For program point L5-2(lines 4 9) no Hoare annotation was computed. [2019-10-13 21:06:45,354 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 09:06:45 BoogieIcfgContainer [2019-10-13 21:06:45,354 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-13 21:06:45,358 INFO L168 Benchmark]: Toolchain (without parser) took 2564.21 ms. Allocated memory was 137.9 MB in the beginning and 233.3 MB in the end (delta: 95.4 MB). Free memory was 102.8 MB in the beginning and 178.9 MB in the end (delta: -76.1 MB). Peak memory consumption was 19.3 MB. Max. memory is 7.1 GB. [2019-10-13 21:06:45,360 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 137.9 MB. Free memory was 121.1 MB in the beginning and 120.9 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-10-13 21:06:45,363 INFO L168 Benchmark]: CACSL2BoogieTranslator took 315.85 ms. Allocated memory is still 137.9 MB. Free memory was 102.6 MB in the beginning and 92.7 MB in the end (delta: 9.9 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. [2019-10-13 21:06:45,370 INFO L168 Benchmark]: Boogie Preprocessor took 130.08 ms. Allocated memory was 137.9 MB in the beginning and 200.8 MB in the end (delta: 62.9 MB). Free memory was 92.7 MB in the beginning and 179.0 MB in the end (delta: -86.3 MB). Peak memory consumption was 14.0 MB. Max. memory is 7.1 GB. [2019-10-13 21:06:45,371 INFO L168 Benchmark]: RCFGBuilder took 335.59 ms. Allocated memory is still 200.8 MB. Free memory was 178.3 MB in the beginning and 164.6 MB in the end (delta: 13.8 MB). Peak memory consumption was 13.8 MB. Max. memory is 7.1 GB. [2019-10-13 21:06:45,372 INFO L168 Benchmark]: TraceAbstraction took 1777.63 ms. Allocated memory was 200.8 MB in the beginning and 233.3 MB in the end (delta: 32.5 MB). Free memory was 164.6 MB in the beginning and 178.9 MB in the end (delta: -14.4 MB). Peak memory consumption was 18.1 MB. Max. memory is 7.1 GB. [2019-10-13 21:06:45,382 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 137.9 MB. Free memory was 121.1 MB in the beginning and 120.9 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 315.85 ms. Allocated memory is still 137.9 MB. Free memory was 102.6 MB in the beginning and 92.7 MB in the end (delta: 9.9 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 130.08 ms. Allocated memory was 137.9 MB in the beginning and 200.8 MB in the end (delta: 62.9 MB). Free memory was 92.7 MB in the beginning and 179.0 MB in the end (delta: -86.3 MB). Peak memory consumption was 14.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 335.59 ms. Allocated memory is still 200.8 MB. Free memory was 178.3 MB in the beginning and 164.6 MB in the end (delta: 13.8 MB). Peak memory consumption was 13.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1777.63 ms. Allocated memory was 200.8 MB in the beginning and 233.3 MB in the end (delta: 32.5 MB). Free memory was 164.6 MB in the beginning and 178.9 MB in the end (delta: -14.4 MB). Peak memory consumption was 18.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 6]: 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: 17]: Loop Invariant Derived loop invariant: (n <= 0 && i == 0) && i == 0 - InvariantResult [Line: 16]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 25 locations, 1 error locations. Result: SAFE, OverallTime: 1.6s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 51 SDtfs, 4 SDslu, 37 SDs, 0 SdLazy, 13 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 24 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=25occurred 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, 3 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 8 LocationsWithAnnotation, 10 PreInvPairs, 11 NumberOfFragments, 17 HoareAnnotationTreeSize, 10 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 8 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 60 NumberOfCodeBlocks, 60 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 71 ConstructedInterpolants, 0 QuantifiedInterpolants, 3363 SizeOfPredicates, 10 NumberOfNonLiveVariables, 66 ConjunctsInSsa, 13 ConjunctsInUnsatCore, 5 InterpolantComputations, 2 PerfectInterpolantSequences, 0/3 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: TIME[ms]: 107, ITERATIONS: 1, WAS_STRONG: 1, WEAKENING_RATIO: 0.9166666666666666, AVG_VARS_REMOVED_DURING_WEAKENING: 0.8666666666666667, AVG_WEAKENED_CONJUNCTS: 0.6666666666666666, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...