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/array-multidimensional/copy-partial-3-u.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 19:53:40,002 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 19:53:40,005 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 19:53:40,024 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 19:53:40,024 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 19:53:40,026 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 19:53:40,028 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 19:53:40,041 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 19:53:40,043 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 19:53:40,045 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 19:53:40,047 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 19:53:40,048 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 19:53:40,049 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 19:53:40,050 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 19:53:40,050 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 19:53:40,051 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 19:53:40,053 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 19:53:40,054 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 19:53:40,055 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 19:53:40,057 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 19:53:40,058 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 19:53:40,059 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 19:53:40,060 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 19:53:40,061 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 19:53:40,063 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-10-13 19:53:40,066 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 19:53:40,069 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 19:53:40,070 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 19:53:40,072 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 19:53:40,073 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 19:53:40,076 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 19:53:40,077 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 19:53:40,077 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 19:53:40,077 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 19:53:40,078 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 19:53:40,079 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 19:53:40,081 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 19:53:40,102 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 19:53:40,102 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 19:53:40,104 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 19:53:40,104 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 19:53:40,105 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 19:53:40,105 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 19:53:40,105 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 19:53:40,105 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 19:53:40,106 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 19:53:40,106 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 19:53:40,106 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 19:53:40,106 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 19:53:40,106 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 19:53:40,107 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 19:53:40,107 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 19:53:40,107 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 19:53:40,107 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 19:53:40,107 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 19:53:40,108 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 19:53:40,108 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 19:53:40,108 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 19:53:40,108 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 19:53:40,109 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 19:53:40,109 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 19:53:40,109 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 19:53:40,109 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 19:53:40,109 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 19:53:40,109 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 19:53:40,110 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 19:53:40,384 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 19:53:40,397 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 19:53:40,400 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 19:53:40,402 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 19:53:40,402 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 19:53:40,403 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-multidimensional/copy-partial-3-u.c [2019-10-13 19:53:40,480 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/257212117/23508f6d3905445a9249a0c946038add/FLAG7b0f12932 [2019-10-13 19:53:40,965 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 19:53:40,966 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/array-multidimensional/copy-partial-3-u.c [2019-10-13 19:53:40,973 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/257212117/23508f6d3905445a9249a0c946038add/FLAG7b0f12932 [2019-10-13 19:53:41,381 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/257212117/23508f6d3905445a9249a0c946038add [2019-10-13 19:53:41,393 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 19:53:41,395 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 19:53:41,397 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 19:53:41,397 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 19:53:41,401 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 19:53:41,402 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:53:41" (1/1) ... [2019-10-13 19:53:41,405 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@691c56bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:53:41, skipping insertion in model container [2019-10-13 19:53:41,405 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:53:41" (1/1) ... [2019-10-13 19:53:41,414 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 19:53:41,441 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 19:53:41,647 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 19:53:41,654 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 19:53:41,684 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 19:53:41,784 INFO L192 MainTranslator]: Completed translation [2019-10-13 19:53:41,785 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:53:41 WrapperNode [2019-10-13 19:53:41,785 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 19:53:41,786 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 19:53:41,786 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 19:53:41,786 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 19:53:41,797 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:53:41" (1/1) ... [2019-10-13 19:53:41,797 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:53:41" (1/1) ... [2019-10-13 19:53:41,807 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:53:41" (1/1) ... [2019-10-13 19:53:41,808 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:53:41" (1/1) ... [2019-10-13 19:53:41,818 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:53:41" (1/1) ... [2019-10-13 19:53:41,829 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:53:41" (1/1) ... [2019-10-13 19:53:41,830 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:53:41" (1/1) ... [2019-10-13 19:53:41,833 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 19:53:41,834 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 19:53:41,834 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 19:53:41,834 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 19:53:41,835 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:53:41" (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 19:53:41,897 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 19:53:41,897 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 19:53:41,897 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-10-13 19:53:41,897 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 19:53:41,897 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 19:53:41,898 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-10-13 19:53:41,898 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-10-13 19:53:41,898 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 19:53:41,898 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 19:53:41,898 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 19:53:41,899 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 19:53:41,899 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 19:53:41,899 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 19:53:41,899 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 19:53:41,899 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 19:53:42,310 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 19:53:42,311 INFO L284 CfgBuilder]: Removed 12 assume(true) statements. [2019-10-13 19:53:42,312 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:53:42 BoogieIcfgContainer [2019-10-13 19:53:42,313 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 19:53:42,314 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 19:53:42,314 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 19:53:42,316 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 19:53:42,317 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 07:53:41" (1/3) ... [2019-10-13 19:53:42,317 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ed28917 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:53:42, skipping insertion in model container [2019-10-13 19:53:42,317 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:53:41" (2/3) ... [2019-10-13 19:53:42,318 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ed28917 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:53:42, skipping insertion in model container [2019-10-13 19:53:42,318 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:53:42" (3/3) ... [2019-10-13 19:53:42,320 INFO L109 eAbstractionObserver]: Analyzing ICFG copy-partial-3-u.c [2019-10-13 19:53:42,327 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 19:53:42,334 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 19:53:42,347 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 19:53:42,369 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 19:53:42,369 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 19:53:42,370 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 19:53:42,370 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 19:53:42,370 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 19:53:42,370 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 19:53:42,370 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 19:53:42,370 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 19:53:42,389 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states. [2019-10-13 19:53:42,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-10-13 19:53:42,396 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:53:42,397 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 19:53:42,400 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:53:42,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:53:42,405 INFO L82 PathProgramCache]: Analyzing trace with hash 1174671461, now seen corresponding path program 1 times [2019-10-13 19:53:42,412 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 19:53:42,412 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1064694335] [2019-10-13 19:53:42,412 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:53:42,413 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:53:42,413 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:53:42,493 ERROR L273 tionRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-10-13 19:53:42,494 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [123944536] [2019-10-13 19:53:42,494 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 19:53:42,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:53:42,559 INFO L256 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 1 conjunts are in the unsatisfiable core [2019-10-13 19:53:42,566 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 19:53:42,587 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 19:53:42,588 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 19:53:42,617 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 19:53:42,617 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1064694335] [2019-10-13 19:53:42,618 INFO L337 tionRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-10-13 19:53:42,618 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [123944536] [2019-10-13 19:53:42,619 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:53:42,620 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-10-13 19:53:42,620 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [976538805] [2019-10-13 19:53:42,626 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-13 19:53:42,629 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 19:53:42,644 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-13 19:53:42,645 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 19:53:42,647 INFO L87 Difference]: Start difference. First operand 42 states. Second operand 2 states. [2019-10-13 19:53:42,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:53:42,674 INFO L93 Difference]: Finished difference Result 78 states and 127 transitions. [2019-10-13 19:53:42,675 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-13 19:53:42,676 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 19 [2019-10-13 19:53:42,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:53:42,684 INFO L225 Difference]: With dead ends: 78 [2019-10-13 19:53:42,684 INFO L226 Difference]: Without dead ends: 37 [2019-10-13 19:53:42,688 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 37 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 19:53:42,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2019-10-13 19:53:42,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2019-10-13 19:53:42,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2019-10-13 19:53:42,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 48 transitions. [2019-10-13 19:53:42,730 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 48 transitions. Word has length 19 [2019-10-13 19:53:42,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:53:42,731 INFO L462 AbstractCegarLoop]: Abstraction has 37 states and 48 transitions. [2019-10-13 19:53:42,731 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-13 19:53:42,732 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 48 transitions. [2019-10-13 19:53:42,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-10-13 19:53:42,733 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:53:42,733 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 19:53:42,938 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 19:53:42,939 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:53:42,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:53:42,939 INFO L82 PathProgramCache]: Analyzing trace with hash 2144819339, now seen corresponding path program 1 times [2019-10-13 19:53:42,940 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 19:53:42,940 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2021022563] [2019-10-13 19:53:42,940 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:53:42,941 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:53:42,941 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:53:42,961 ERROR L273 tionRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-10-13 19:53:42,962 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [229840258] [2019-10-13 19:53:42,963 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 [2019-10-13 19:53:43,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:53:43,031 INFO L256 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-13 19:53:43,033 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 19:53:43,058 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 19:53:43,059 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 19:53:43,075 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 19:53:43,076 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2021022563] [2019-10-13 19:53:43,076 INFO L337 tionRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-10-13 19:53:43,076 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [229840258] [2019-10-13 19:53:43,076 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:53:43,076 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2019-10-13 19:53:43,077 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [140029802] [2019-10-13 19:53:43,078 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-13 19:53:43,079 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 19:53:43,079 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-13 19:53:43,079 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-13 19:53:43,079 INFO L87 Difference]: Start difference. First operand 37 states and 48 transitions. Second operand 4 states. [2019-10-13 19:53:43,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:53:43,198 INFO L93 Difference]: Finished difference Result 69 states and 92 transitions. [2019-10-13 19:53:43,199 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-13 19:53:43,199 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 19 [2019-10-13 19:53:43,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:53:43,200 INFO L225 Difference]: With dead ends: 69 [2019-10-13 19:53:43,201 INFO L226 Difference]: Without dead ends: 43 [2019-10-13 19:53:43,203 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-13 19:53:43,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2019-10-13 19:53:43,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2019-10-13 19:53:43,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2019-10-13 19:53:43,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 56 transitions. [2019-10-13 19:53:43,216 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 56 transitions. Word has length 19 [2019-10-13 19:53:43,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:53:43,216 INFO L462 AbstractCegarLoop]: Abstraction has 43 states and 56 transitions. [2019-10-13 19:53:43,216 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-13 19:53:43,217 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 56 transitions. [2019-10-13 19:53:43,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-10-13 19:53:43,218 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:53:43,218 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 19:53:43,428 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 19:53:43,429 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:53:43,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:53:43,429 INFO L82 PathProgramCache]: Analyzing trace with hash 2052583211, now seen corresponding path program 1 times [2019-10-13 19:53:43,430 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 19:53:43,430 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [371660233] [2019-10-13 19:53:43,431 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:53:43,431 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:53:43,431 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:53:43,450 ERROR L273 tionRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-10-13 19:53:43,450 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [827332363] [2019-10-13 19:53:43,451 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 19:53:43,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:53:43,501 INFO L256 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-13 19:53:43,503 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 19:53:43,528 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-13 19:53:43,529 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 19:53:43,566 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-13 19:53:43,566 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [371660233] [2019-10-13 19:53:43,566 INFO L337 tionRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-10-13 19:53:43,567 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [827332363] [2019-10-13 19:53:43,567 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:53:43,568 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2019-10-13 19:53:43,568 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1128793391] [2019-10-13 19:53:43,568 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-13 19:53:43,569 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 19:53:43,569 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-13 19:53:43,570 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-10-13 19:53:43,570 INFO L87 Difference]: Start difference. First operand 43 states and 56 transitions. Second operand 6 states. [2019-10-13 19:53:43,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:53:43,763 INFO L93 Difference]: Finished difference Result 107 states and 149 transitions. [2019-10-13 19:53:43,763 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-13 19:53:43,763 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 25 [2019-10-13 19:53:43,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:53:43,767 INFO L225 Difference]: With dead ends: 107 [2019-10-13 19:53:43,767 INFO L226 Difference]: Without dead ends: 74 [2019-10-13 19:53:43,768 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2019-10-13 19:53:43,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2019-10-13 19:53:43,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 57. [2019-10-13 19:53:43,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2019-10-13 19:53:43,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 74 transitions. [2019-10-13 19:53:43,786 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 74 transitions. Word has length 25 [2019-10-13 19:53:43,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:53:43,786 INFO L462 AbstractCegarLoop]: Abstraction has 57 states and 74 transitions. [2019-10-13 19:53:43,786 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-13 19:53:43,787 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 74 transitions. [2019-10-13 19:53:43,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2019-10-13 19:53:43,788 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:53:43,788 INFO L380 BasicCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 19:53:43,991 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 19:53:43,992 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:53:43,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:53:43,993 INFO L82 PathProgramCache]: Analyzing trace with hash -290235285, now seen corresponding path program 1 times [2019-10-13 19:53:43,994 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 19:53:43,994 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1026936295] [2019-10-13 19:53:43,995 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:53:43,995 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:53:43,995 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:53:44,003 ERROR L273 tionRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-10-13 19:53:44,003 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1515977612] [2019-10-13 19:53:44,003 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 19:53:44,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:53:44,046 INFO L256 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-13 19:53:44,048 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 19:53:44,070 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2019-10-13 19:53:44,070 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 19:53:44,092 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2019-10-13 19:53:44,092 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1026936295] [2019-10-13 19:53:44,093 INFO L337 tionRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-10-13 19:53:44,093 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1515977612] [2019-10-13 19:53:44,093 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:53:44,093 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2019-10-13 19:53:44,093 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1839129741] [2019-10-13 19:53:44,094 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-13 19:53:44,094 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 19:53:44,095 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-13 19:53:44,095 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-10-13 19:53:44,095 INFO L87 Difference]: Start difference. First operand 57 states and 74 transitions. Second operand 6 states. [2019-10-13 19:53:44,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:53:44,286 INFO L93 Difference]: Finished difference Result 142 states and 199 transitions. [2019-10-13 19:53:44,286 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-13 19:53:44,287 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 37 [2019-10-13 19:53:44,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:53:44,290 INFO L225 Difference]: With dead ends: 142 [2019-10-13 19:53:44,290 INFO L226 Difference]: Without dead ends: 94 [2019-10-13 19:53:44,291 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2019-10-13 19:53:44,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2019-10-13 19:53:44,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 73. [2019-10-13 19:53:44,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2019-10-13 19:53:44,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 92 transitions. [2019-10-13 19:53:44,315 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 92 transitions. Word has length 37 [2019-10-13 19:53:44,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:53:44,316 INFO L462 AbstractCegarLoop]: Abstraction has 73 states and 92 transitions. [2019-10-13 19:53:44,316 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-13 19:53:44,316 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 92 transitions. [2019-10-13 19:53:44,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2019-10-13 19:53:44,321 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:53:44,322 INFO L380 BasicCegarLoop]: trace histogram [8, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 19:53:44,525 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 19:53:44,525 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:53:44,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:53:44,526 INFO L82 PathProgramCache]: Analyzing trace with hash -1362374677, now seen corresponding path program 1 times [2019-10-13 19:53:44,526 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 19:53:44,526 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [285179922] [2019-10-13 19:53:44,527 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:53:44,527 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:53:44,527 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:53:44,549 ERROR L273 tionRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-10-13 19:53:44,550 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1089213666] [2019-10-13 19:53:44,550 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 19:53:44,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:53:44,627 INFO L256 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 5 conjunts are in the unsatisfiable core [2019-10-13 19:53:44,629 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 19:53:44,667 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 34 proven. 3 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2019-10-13 19:53:44,667 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 19:53:44,706 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 34 proven. 3 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2019-10-13 19:53:44,707 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [285179922] [2019-10-13 19:53:44,707 INFO L337 tionRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-10-13 19:53:44,707 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1089213666] [2019-10-13 19:53:44,707 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleAbstractInterpretation [896476438] [2019-10-13 19:53:44,725 INFO L211 CegarAbsIntRunner]: Running AI on error trace of length 46 [2019-10-13 19:53:44,774 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-10-13 19:53:44,775 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-10-13 19:53:44,848 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-10-13 19:53:44,850 INFO L272 AbstractInterpreter]: Visited 6 different actions 6 times. Never merged. Never widened. Performed 17 root evaluator evaluations with a maximum evaluation depth of 0. Performed 17 inverse root evaluator evaluations with a maximum inverse evaluation depth of 0. Never found a fixpoint. Largest state had 24 variables. [2019-10-13 19:53:44,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:53:44,854 INFO L536 sIntCurrentIteration]: Generating AbsInt predicates [2019-10-13 19:53:44,895 INFO L227 lantSequenceWeakener]: Weakened 4 states. On average, predicates are now at 100% of their original sizes. [2019-10-13 19:53:44,895 INFO L551 sIntCurrentIteration]: Unifying AI predicates [2019-10-13 19:53:44,897 INFO L553 sIntCurrentIteration]: We unified 44 AI predicates to 44 [2019-10-13 19:53:44,897 INFO L562 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-10-13 19:53:44,898 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-13 19:53:44,898 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [6, 6] total 10 [2019-10-13 19:53:44,899 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1319692096] [2019-10-13 19:53:44,899 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-13 19:53:44,900 INFO L137 tionRefinementEngine]: Using predicate unifier AbsIntPredicateUnifier provided by strategy TAIPAN [2019-10-13 19:53:44,900 INFO L124 tionRefinementEngine]: Using hoare triple checker CachingHoareTripleCheckerMap provided by strategy [2019-10-13 19:53:44,900 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-13 19:53:44,900 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 19:53:44,901 INFO L87 Difference]: Start difference. First operand 73 states and 92 transitions. Second operand 2 states. [2019-10-13 19:53:44,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:53:44,904 INFO L93 Difference]: Finished difference Result 73 states and 92 transitions. [2019-10-13 19:53:44,904 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-13 19:53:44,904 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 45 [2019-10-13 19:53:44,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:53:44,904 INFO L225 Difference]: With dead ends: 73 [2019-10-13 19:53:44,905 INFO L226 Difference]: Without dead ends: 0 [2019-10-13 19:53:44,905 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 44 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 19:53:44,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-13 19:53:44,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-13 19:53:44,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-13 19:53:44,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-13 19:53:44,906 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 45 [2019-10-13 19:53:44,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:53:44,907 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-13 19:53:44,907 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-13 19:53:44,907 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-13 19:53:44,907 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-13 19:53:45,111 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 19:53:45,117 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-13 19:53:45,171 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2019-10-13 19:53:45,171 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2019-10-13 19:53:45,171 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-10-13 19:53:45,172 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-13 19:53:45,172 INFO L446 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2019-10-13 19:53:45,172 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-10-13 19:53:45,172 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-13 19:53:45,172 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 11 95) no Hoare annotation was computed. [2019-10-13 19:53:45,172 INFO L439 ceAbstractionStarter]: At program point L52-2(lines 52 55) the Hoare annotation is: false [2019-10-13 19:53:45,173 INFO L443 ceAbstractionStarter]: For program point L52-3(lines 52 55) no Hoare annotation was computed. [2019-10-13 19:53:45,173 INFO L439 ceAbstractionStarter]: At program point L86-2(lines 86 89) the Hoare annotation is: false [2019-10-13 19:53:45,173 INFO L443 ceAbstractionStarter]: For program point L86-3(lines 86 89) no Hoare annotation was computed. [2019-10-13 19:53:45,173 INFO L439 ceAbstractionStarter]: At program point L62-2(lines 62 73) the Hoare annotation is: false [2019-10-13 19:53:45,173 INFO L439 ceAbstractionStarter]: At program point L29-2(lines 29 36) the Hoare annotation is: false [2019-10-13 19:53:45,173 INFO L443 ceAbstractionStarter]: For program point L62-3(lines 62 73) no Hoare annotation was computed. [2019-10-13 19:53:45,174 INFO L443 ceAbstractionStarter]: For program point L29-3(lines 29 36) no Hoare annotation was computed. [2019-10-13 19:53:45,174 INFO L439 ceAbstractionStarter]: At program point L87(line 87) the Hoare annotation is: false [2019-10-13 19:53:45,174 INFO L443 ceAbstractionStarter]: For program point L87-1(line 87) no Hoare annotation was computed. [2019-10-13 19:53:45,174 INFO L443 ceAbstractionStarter]: For program point mainFINAL(lines 11 95) no Hoare annotation was computed. [2019-10-13 19:53:45,174 INFO L446 ceAbstractionStarter]: At program point mainENTRY(lines 11 95) the Hoare annotation is: true [2019-10-13 19:53:45,174 INFO L439 ceAbstractionStarter]: At program point L47-2(lines 47 59) the Hoare annotation is: false [2019-10-13 19:53:45,175 INFO L443 ceAbstractionStarter]: For program point L47-3(lines 47 59) no Hoare annotation was computed. [2019-10-13 19:53:45,175 INFO L439 ceAbstractionStarter]: At program point L64-2(lines 64 71) the Hoare annotation is: false [2019-10-13 19:53:45,175 INFO L439 ceAbstractionStarter]: At program point L31-2(lines 31 34) the Hoare annotation is: false [2019-10-13 19:53:45,175 INFO L443 ceAbstractionStarter]: For program point L64-3(lines 64 71) no Hoare annotation was computed. [2019-10-13 19:53:45,175 INFO L443 ceAbstractionStarter]: For program point L31-3(lines 31 34) no Hoare annotation was computed. [2019-10-13 19:53:45,175 INFO L439 ceAbstractionStarter]: At program point L81-2(lines 81 93) the Hoare annotation is: false [2019-10-13 19:53:45,176 INFO L443 ceAbstractionStarter]: For program point L81-3(lines 81 93) no Hoare annotation was computed. [2019-10-13 19:53:45,176 INFO L439 ceAbstractionStarter]: At program point L66-2(lines 66 69) the Hoare annotation is: false [2019-10-13 19:53:45,176 INFO L443 ceAbstractionStarter]: For program point L66-3(lines 66 69) no Hoare annotation was computed. [2019-10-13 19:53:45,176 INFO L439 ceAbstractionStarter]: At program point L50-2(lines 50 57) the Hoare annotation is: false [2019-10-13 19:53:45,176 INFO L443 ceAbstractionStarter]: For program point L50-3(lines 50 57) no Hoare annotation was computed. [2019-10-13 19:53:45,176 INFO L439 ceAbstractionStarter]: At program point L26-2(lines 26 38) the Hoare annotation is: false [2019-10-13 19:53:45,177 INFO L443 ceAbstractionStarter]: For program point L26-3(lines 26 38) no Hoare annotation was computed. [2019-10-13 19:53:45,177 INFO L439 ceAbstractionStarter]: At program point L84-2(lines 84 91) the Hoare annotation is: false [2019-10-13 19:53:45,177 INFO L443 ceAbstractionStarter]: For program point L84-3(lines 84 91) no Hoare annotation was computed. [2019-10-13 19:53:45,177 INFO L446 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(lines 3 8) the Hoare annotation is: true [2019-10-13 19:53:45,178 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(lines 3 8) no Hoare annotation was computed. [2019-10-13 19:53:45,178 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2019-10-13 19:53:45,178 INFO L443 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2019-10-13 19:53:45,178 INFO L443 ceAbstractionStarter]: For program point L4(lines 4 6) no Hoare annotation was computed. [2019-10-13 19:53:45,178 INFO L443 ceAbstractionStarter]: For program point L4-2(lines 3 8) no Hoare annotation was computed. [2019-10-13 19:53:45,192 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 07:53:45 BoogieIcfgContainer [2019-10-13 19:53:45,192 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-13 19:53:45,196 INFO L168 Benchmark]: Toolchain (without parser) took 3799.02 ms. Allocated memory was 138.4 MB in the beginning and 234.4 MB in the end (delta: 95.9 MB). Free memory was 103.3 MB in the beginning and 106.0 MB in the end (delta: -2.7 MB). Peak memory consumption was 93.3 MB. Max. memory is 7.1 GB. [2019-10-13 19:53:45,205 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 138.4 MB. Free memory was 121.6 MB in the beginning and 121.4 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2019-10-13 19:53:45,207 INFO L168 Benchmark]: CACSL2BoogieTranslator took 388.48 ms. Allocated memory was 138.4 MB in the beginning and 201.3 MB in the end (delta: 62.9 MB). Free memory was 103.1 MB in the beginning and 180.0 MB in the end (delta: -76.9 MB). Peak memory consumption was 24.2 MB. Max. memory is 7.1 GB. [2019-10-13 19:53:45,208 INFO L168 Benchmark]: Boogie Preprocessor took 47.64 ms. Allocated memory is still 201.3 MB. Free memory was 180.0 MB in the beginning and 177.5 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.4 MB. Max. memory is 7.1 GB. [2019-10-13 19:53:45,209 INFO L168 Benchmark]: RCFGBuilder took 479.03 ms. Allocated memory is still 201.3 MB. Free memory was 177.5 MB in the beginning and 157.9 MB in the end (delta: 19.7 MB). Peak memory consumption was 19.7 MB. Max. memory is 7.1 GB. [2019-10-13 19:53:45,210 INFO L168 Benchmark]: TraceAbstraction took 2878.54 ms. Allocated memory was 201.3 MB in the beginning and 234.4 MB in the end (delta: 33.0 MB). Free memory was 157.9 MB in the beginning and 106.0 MB in the end (delta: 51.9 MB). Peak memory consumption was 85.0 MB. Max. memory is 7.1 GB. [2019-10-13 19:53:45,219 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 138.4 MB. Free memory was 121.6 MB in the beginning and 121.4 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 388.48 ms. Allocated memory was 138.4 MB in the beginning and 201.3 MB in the end (delta: 62.9 MB). Free memory was 103.1 MB in the beginning and 180.0 MB in the end (delta: -76.9 MB). Peak memory consumption was 24.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 47.64 ms. Allocated memory is still 201.3 MB. Free memory was 180.0 MB in the beginning and 177.5 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 479.03 ms. Allocated memory is still 201.3 MB. Free memory was 177.5 MB in the beginning and 157.9 MB in the end (delta: 19.7 MB). Peak memory consumption was 19.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2878.54 ms. Allocated memory was 201.3 MB in the beginning and 234.4 MB in the end (delta: 33.0 MB). Free memory was 157.9 MB in the beginning and 106.0 MB in the end (delta: 51.9 MB). Peak memory consumption was 85.0 MB. Max. memory is 7.1 GB. * 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: 29]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 62]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 52]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 84]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 31]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 47]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 26]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 64]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 86]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 81]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 50]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 66]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 42 locations, 1 error locations. Result: SAFE, OverallTime: 2.8s, OverallIterations: 5, TraceHistogramMax: 8, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 144 SDtfs, 209 SDslu, 117 SDs, 0 SdLazy, 150 SolverSat, 86 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 242 GetRequests, 230 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=73occurred in iteration=4, 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, 5 MinimizatonAttempts, 38 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 18 LocationsWithAnnotation, 26 PreInvPairs, 26 NumberOfFragments, 18 HoareAnnotationTreeSize, 26 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 18 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 145 NumberOfCodeBlocks, 145 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 280 ConstructedInterpolants, 0 QuantifiedInterpolants, 11504 SizeOfPredicates, 8 NumberOfNonLiveVariables, 599 ConjunctsInSsa, 15 ConjunctsInUnsatCore, 10 InterpolantComputations, 8 PerfectInterpolantSequences, 248/254 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: TIME[ms]: 129, ITERATIONS: 1, WAS_STRONG: 1, WEAKENING_RATIO: 0.9488636363636364, AVG_VARS_REMOVED_DURING_WEAKENING: 0.75, AVG_WEAKENED_CONJUNCTS: 0.13636363636363635, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...