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-crafted/zero_sum5.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 19:52:53,217 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 19:52:53,220 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 19:52:53,238 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 19:52:53,239 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 19:52:53,241 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 19:52:53,243 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 19:52:53,252 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 19:52:53,254 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 19:52:53,255 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 19:52:53,256 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 19:52:53,257 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 19:52:53,257 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 19:52:53,258 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 19:52:53,259 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 19:52:53,260 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 19:52:53,261 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 19:52:53,262 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 19:52:53,264 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 19:52:53,265 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 19:52:53,267 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 19:52:53,268 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 19:52:53,269 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 19:52:53,270 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 19:52:53,272 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 19:52:53,272 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 19:52:53,273 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 19:52:53,274 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 19:52:53,274 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 19:52:53,275 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 19:52:53,275 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 19:52:53,276 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 19:52:53,277 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 19:52:53,278 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 19:52:53,279 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 19:52:53,279 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 19:52:53,280 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 19:52:53,280 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 19:52:53,280 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 19:52:53,281 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 19:52:53,282 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 19:52:53,283 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 19:52:53,297 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 19:52:53,297 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 19:52:53,298 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 19:52:53,299 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 19:52:53,299 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 19:52:53,299 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 19:52:53,299 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 19:52:53,299 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 19:52:53,300 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 19:52:53,300 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 19:52:53,300 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 19:52:53,300 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 19:52:53,300 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 19:52:53,301 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 19:52:53,301 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 19:52:53,301 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 19:52:53,301 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 19:52:53,301 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 19:52:53,302 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 19:52:53,302 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 19:52:53,302 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 19:52:53,302 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 19:52:53,303 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 19:52:53,303 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 19:52:53,303 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 19:52:53,303 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 19:52:53,303 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 19:52:53,304 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 19:52:53,304 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 19:52:53,623 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 19:52:53,635 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 19:52:53,639 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 19:52:53,640 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 19:52:53,641 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 19:52:53,642 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-crafted/zero_sum5.c [2019-10-13 19:52:53,719 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6755f7add/099e259c361e419ebd7910e413c5b87f/FLAG6c1a7c1cb [2019-10-13 19:52:54,184 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 19:52:54,184 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/array-crafted/zero_sum5.c [2019-10-13 19:52:54,193 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6755f7add/099e259c361e419ebd7910e413c5b87f/FLAG6c1a7c1cb [2019-10-13 19:52:54,561 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6755f7add/099e259c361e419ebd7910e413c5b87f [2019-10-13 19:52:54,571 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 19:52:54,572 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 19:52:54,573 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 19:52:54,574 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 19:52:54,577 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 19:52:54,578 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:52:54" (1/1) ... [2019-10-13 19:52:54,581 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@338e2a78 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:52:54, skipping insertion in model container [2019-10-13 19:52:54,581 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:52:54" (1/1) ... [2019-10-13 19:52:54,588 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 19:52:54,610 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 19:52:54,779 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 19:52:54,783 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 19:52:54,825 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 19:52:54,931 INFO L192 MainTranslator]: Completed translation [2019-10-13 19:52:54,932 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:52:54 WrapperNode [2019-10-13 19:52:54,932 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 19:52:54,932 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 19:52:54,933 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 19:52:54,933 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 19:52:54,947 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:52:54" (1/1) ... [2019-10-13 19:52:54,948 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:52:54" (1/1) ... [2019-10-13 19:52:54,970 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:52:54" (1/1) ... [2019-10-13 19:52:54,970 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:52:54" (1/1) ... [2019-10-13 19:52:54,992 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:52:54" (1/1) ... [2019-10-13 19:52:55,000 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:52:54" (1/1) ... [2019-10-13 19:52:55,002 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:52:54" (1/1) ... [2019-10-13 19:52:55,005 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 19:52:55,006 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 19:52:55,006 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 19:52:55,006 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 19:52:55,007 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:52:54" (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 19:52:55,070 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 19:52:55,070 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 19:52:55,071 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-10-13 19:52:55,071 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 19:52:55,071 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 19:52:55,071 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-10-13 19:52:55,071 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-10-13 19:52:55,071 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_short [2019-10-13 19:52:55,072 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 19:52:55,072 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 19:52:55,072 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 19:52:55,072 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 19:52:55,072 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 19:52:55,072 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 19:52:55,073 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 19:52:55,406 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 19:52:55,406 INFO L284 CfgBuilder]: Removed 11 assume(true) statements. [2019-10-13 19:52:55,408 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:52:55 BoogieIcfgContainer [2019-10-13 19:52:55,408 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 19:52:55,410 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 19:52:55,410 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 19:52:55,414 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 19:52:55,414 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 07:52:54" (1/3) ... [2019-10-13 19:52:55,415 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@bbfd723 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:52:55, skipping insertion in model container [2019-10-13 19:52:55,415 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:52:54" (2/3) ... [2019-10-13 19:52:55,416 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@bbfd723 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:52:55, skipping insertion in model container [2019-10-13 19:52:55,416 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:52:55" (3/3) ... [2019-10-13 19:52:55,418 INFO L109 eAbstractionObserver]: Analyzing ICFG zero_sum5.c [2019-10-13 19:52:55,429 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 19:52:55,436 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 19:52:55,456 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 19:52:55,495 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 19:52:55,495 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 19:52:55,496 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 19:52:55,496 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 19:52:55,496 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 19:52:55,496 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 19:52:55,496 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 19:52:55,496 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 19:52:55,524 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states. [2019-10-13 19:52:55,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-10-13 19:52:55,540 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:52:55,541 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 19:52:55,543 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:52:55,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:52:55,548 INFO L82 PathProgramCache]: Analyzing trace with hash -298961335, now seen corresponding path program 1 times [2019-10-13 19:52:55,556 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 19:52:55,556 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [902068072] [2019-10-13 19:52:55,556 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:52:55,557 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:52:55,557 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:52:55,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:52:55,690 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 19:52:55,691 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [902068072] [2019-10-13 19:52:55,692 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:52:55,692 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-13 19:52:55,693 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [909430228] [2019-10-13 19:52:55,697 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-13 19:52:55,699 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 19:52:55,714 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-13 19:52:55,715 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 19:52:55,718 INFO L87 Difference]: Start difference. First operand 52 states. Second operand 2 states. [2019-10-13 19:52:55,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:52:55,746 INFO L93 Difference]: Finished difference Result 95 states and 139 transitions. [2019-10-13 19:52:55,746 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-13 19:52:55,747 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 32 [2019-10-13 19:52:55,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:52:55,756 INFO L225 Difference]: With dead ends: 95 [2019-10-13 19:52:55,757 INFO L226 Difference]: Without dead ends: 44 [2019-10-13 19:52:55,760 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 19:52:55,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2019-10-13 19:52:55,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2019-10-13 19:52:55,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2019-10-13 19:52:55,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 54 transitions. [2019-10-13 19:52:55,804 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 54 transitions. Word has length 32 [2019-10-13 19:52:55,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:52:55,805 INFO L462 AbstractCegarLoop]: Abstraction has 44 states and 54 transitions. [2019-10-13 19:52:55,805 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-13 19:52:55,805 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 54 transitions. [2019-10-13 19:52:55,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-10-13 19:52:55,809 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:52:55,809 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 19:52:55,810 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:52:55,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:52:55,812 INFO L82 PathProgramCache]: Analyzing trace with hash 351831333, now seen corresponding path program 1 times [2019-10-13 19:52:55,812 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 19:52:55,813 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [582091675] [2019-10-13 19:52:55,813 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:52:55,813 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:52:55,814 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:52:55,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:52:56,064 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 19:52:56,064 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [582091675] [2019-10-13 19:52:56,065 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:52:56,065 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-13 19:52:56,065 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1664149082] [2019-10-13 19:52:56,067 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-13 19:52:56,067 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 19:52:56,068 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-13 19:52:56,068 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-13 19:52:56,068 INFO L87 Difference]: Start difference. First operand 44 states and 54 transitions. Second operand 5 states. [2019-10-13 19:52:56,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:52:56,179 INFO L93 Difference]: Finished difference Result 68 states and 87 transitions. [2019-10-13 19:52:56,180 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-13 19:52:56,180 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 32 [2019-10-13 19:52:56,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:52:56,183 INFO L225 Difference]: With dead ends: 68 [2019-10-13 19:52:56,183 INFO L226 Difference]: Without dead ends: 63 [2019-10-13 19:52:56,186 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-10-13 19:52:56,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2019-10-13 19:52:56,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2019-10-13 19:52:56,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2019-10-13 19:52:56,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 82 transitions. [2019-10-13 19:52:56,198 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 82 transitions. Word has length 32 [2019-10-13 19:52:56,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:52:56,199 INFO L462 AbstractCegarLoop]: Abstraction has 63 states and 82 transitions. [2019-10-13 19:52:56,199 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-13 19:52:56,199 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 82 transitions. [2019-10-13 19:52:56,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-10-13 19:52:56,201 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:52:56,201 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 19:52:56,202 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:52:56,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:52:56,202 INFO L82 PathProgramCache]: Analyzing trace with hash 615337315, now seen corresponding path program 1 times [2019-10-13 19:52:56,202 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 19:52:56,203 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [78124849] [2019-10-13 19:52:56,203 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:52:56,203 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:52:56,203 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:52:56,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:52:56,260 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-13 19:52:56,260 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [78124849] [2019-10-13 19:52:56,261 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:52:56,261 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 19:52:56,261 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [149807588] [2019-10-13 19:52:56,262 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 19:52:56,262 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 19:52:56,262 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 19:52:56,262 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 19:52:56,263 INFO L87 Difference]: Start difference. First operand 63 states and 82 transitions. Second operand 3 states. [2019-10-13 19:52:56,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:52:56,347 INFO L93 Difference]: Finished difference Result 119 states and 157 transitions. [2019-10-13 19:52:56,348 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 19:52:56,348 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 34 [2019-10-13 19:52:56,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:52:56,349 INFO L225 Difference]: With dead ends: 119 [2019-10-13 19:52:56,350 INFO L226 Difference]: Without dead ends: 65 [2019-10-13 19:52:56,350 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 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 19:52:56,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2019-10-13 19:52:56,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 64. [2019-10-13 19:52:56,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2019-10-13 19:52:56,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 83 transitions. [2019-10-13 19:52:56,361 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 83 transitions. Word has length 34 [2019-10-13 19:52:56,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:52:56,362 INFO L462 AbstractCegarLoop]: Abstraction has 64 states and 83 transitions. [2019-10-13 19:52:56,362 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 19:52:56,362 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 83 transitions. [2019-10-13 19:52:56,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2019-10-13 19:52:56,364 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:52:56,364 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 19:52:56,364 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:52:56,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:52:56,365 INFO L82 PathProgramCache]: Analyzing trace with hash 1838268449, now seen corresponding path program 1 times [2019-10-13 19:52:56,365 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 19:52:56,366 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1286940132] [2019-10-13 19:52:56,366 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:52:56,366 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:52:56,366 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:52:56,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:52:56,429 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-13 19:52:56,429 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1286940132] [2019-10-13 19:52:56,430 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:52:56,430 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-13 19:52:56,430 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1265588597] [2019-10-13 19:52:56,431 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-13 19:52:56,431 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 19:52:56,432 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-13 19:52:56,432 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-13 19:52:56,432 INFO L87 Difference]: Start difference. First operand 64 states and 83 transitions. Second operand 4 states. [2019-10-13 19:52:56,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:52:56,626 INFO L93 Difference]: Finished difference Result 114 states and 150 transitions. [2019-10-13 19:52:56,626 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-13 19:52:56,626 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 36 [2019-10-13 19:52:56,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:52:56,628 INFO L225 Difference]: With dead ends: 114 [2019-10-13 19:52:56,628 INFO L226 Difference]: Without dead ends: 65 [2019-10-13 19:52:56,631 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 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 19:52:56,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2019-10-13 19:52:56,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 55. [2019-10-13 19:52:56,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2019-10-13 19:52:56,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 65 transitions. [2019-10-13 19:52:56,653 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 65 transitions. Word has length 36 [2019-10-13 19:52:56,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:52:56,653 INFO L462 AbstractCegarLoop]: Abstraction has 55 states and 65 transitions. [2019-10-13 19:52:56,654 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-13 19:52:56,654 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 65 transitions. [2019-10-13 19:52:56,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2019-10-13 19:52:56,659 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:52:56,659 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 19:52:56,662 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:52:56,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:52:56,663 INFO L82 PathProgramCache]: Analyzing trace with hash 1356508047, now seen corresponding path program 1 times [2019-10-13 19:52:56,663 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 19:52:56,664 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [863837995] [2019-10-13 19:52:56,664 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:52:56,664 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:52:56,664 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:52:56,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:52:56,763 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2019-10-13 19:52:56,764 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [863837995] [2019-10-13 19:52:56,764 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2114951850] [2019-10-13 19:52:56,765 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 19:52:56,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:52:56,842 INFO L256 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 4 conjunts are in the unsatisfiable core [2019-10-13 19:52:56,850 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 19:52:56,900 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2019-10-13 19:52:56,900 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 19:52:56,933 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2019-10-13 19:52:56,933 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleAbstractInterpretation [221284027] [2019-10-13 19:52:56,940 INFO L211 CegarAbsIntRunner]: Running AI on error trace of length 55 [2019-10-13 19:52:56,998 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-10-13 19:52:56,998 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-10-13 19:52:57,067 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-10-13 19:52:57,069 INFO L272 AbstractInterpreter]: Visited 7 different actions 7 times. Never merged. Never widened. Performed 21 root evaluator evaluations with a maximum evaluation depth of 2. Performed 21 inverse root evaluator evaluations with a maximum inverse evaluation depth of 2. Never found a fixpoint. Largest state had 42 variables. [2019-10-13 19:52:57,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:52:57,073 INFO L536 sIntCurrentIteration]: Generating AbsInt predicates [2019-10-13 19:52:57,118 INFO L227 lantSequenceWeakener]: Weakened 5 states. On average, predicates are now at 96.67% of their original sizes. [2019-10-13 19:52:57,119 INFO L551 sIntCurrentIteration]: Unifying AI predicates [2019-10-13 19:52:57,130 INFO L553 sIntCurrentIteration]: We unified 53 AI predicates to 53 [2019-10-13 19:52:57,130 INFO L562 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-10-13 19:52:57,131 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 3 imperfect interpolant sequences. [2019-10-13 19:52:57,131 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5, 4, 4] total 10 [2019-10-13 19:52:57,132 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [181843822] [2019-10-13 19:52:57,132 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 19:52:57,133 INFO L137 tionRefinementEngine]: Using predicate unifier AbsIntPredicateUnifier provided by strategy TAIPAN [2019-10-13 19:52:57,133 INFO L124 tionRefinementEngine]: Using hoare triple checker CachingHoareTripleCheckerMap provided by strategy [2019-10-13 19:52:57,134 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 19:52:57,134 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 19:52:57,134 INFO L87 Difference]: Start difference. First operand 55 states and 65 transitions. Second operand 3 states. [2019-10-13 19:52:57,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:52:57,138 INFO L93 Difference]: Finished difference Result 55 states and 65 transitions. [2019-10-13 19:52:57,138 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 19:52:57,138 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 54 [2019-10-13 19:52:57,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:52:57,142 INFO L225 Difference]: With dead ends: 55 [2019-10-13 19:52:57,142 INFO L226 Difference]: Without dead ends: 0 [2019-10-13 19:52:57,143 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 52 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 19:52:57,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-13 19:52:57,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-13 19:52:57,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-13 19:52:57,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-13 19:52:57,144 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 54 [2019-10-13 19:52:57,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:52:57,144 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-13 19:52:57,144 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 19:52:57,144 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-13 19:52:57,144 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-13 19:52:57,345 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 19:52:57,349 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-13 19:52:57,477 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2019-10-13 19:52:57,478 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2019-10-13 19:52:57,478 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-10-13 19:52:57,478 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-13 19:52:57,479 INFO L439 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (and (<= 0 (+ ~SIZE~0 32768)) (<= ~SIZE~0 32767)) [2019-10-13 19:52:57,479 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-10-13 19:52:57,479 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-13 19:52:57,479 INFO L443 ceAbstractionStarter]: For program point L27-2(lines 27 30) no Hoare annotation was computed. [2019-10-13 19:52:57,481 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 8 75) no Hoare annotation was computed. [2019-10-13 19:52:57,482 INFO L439 ceAbstractionStarter]: At program point L27-3(lines 27 30) the Hoare annotation is: (or (not (<= 0 (+ |old(~SIZE~0)| 32768))) (not (<= |old(~SIZE~0)| 32767))) [2019-10-13 19:52:57,482 INFO L443 ceAbstractionStarter]: For program point L27-4(lines 27 30) no Hoare annotation was computed. [2019-10-13 19:52:57,482 INFO L443 ceAbstractionStarter]: For program point L52-2(lines 52 55) no Hoare annotation was computed. [2019-10-13 19:52:57,482 INFO L439 ceAbstractionStarter]: At program point L52-3(lines 52 55) the Hoare annotation is: (or (not (<= 0 (+ |old(~SIZE~0)| 32768))) (not (<= |old(~SIZE~0)| 32767))) [2019-10-13 19:52:57,482 INFO L443 ceAbstractionStarter]: For program point L52-4(lines 52 55) no Hoare annotation was computed. [2019-10-13 19:52:57,483 INFO L443 ceAbstractionStarter]: For program point L11(lines 11 73) no Hoare annotation was computed. [2019-10-13 19:52:57,483 INFO L443 ceAbstractionStarter]: For program point L11-2(lines 11 73) no Hoare annotation was computed. [2019-10-13 19:52:57,483 INFO L443 ceAbstractionStarter]: For program point L37-2(lines 37 40) no Hoare annotation was computed. [2019-10-13 19:52:57,489 INFO L439 ceAbstractionStarter]: At program point L37-3(lines 37 40) the Hoare annotation is: (or (not (<= 0 (+ |old(~SIZE~0)| 32768))) (not (<= |old(~SIZE~0)| 32767))) [2019-10-13 19:52:57,490 INFO L443 ceAbstractionStarter]: For program point L37-4(lines 37 40) no Hoare annotation was computed. [2019-10-13 19:52:57,490 INFO L443 ceAbstractionStarter]: For program point L62-2(lines 62 65) no Hoare annotation was computed. [2019-10-13 19:52:57,490 INFO L439 ceAbstractionStarter]: At program point L62-3(lines 62 65) the Hoare annotation is: (or (not (<= 0 (+ |old(~SIZE~0)| 32768))) (not (<= |old(~SIZE~0)| 32767))) [2019-10-13 19:52:57,490 INFO L443 ceAbstractionStarter]: For program point L62-4(lines 62 65) no Hoare annotation was computed. [2019-10-13 19:52:57,490 INFO L443 ceAbstractionStarter]: For program point mainFINAL(lines 8 75) no Hoare annotation was computed. [2019-10-13 19:52:57,490 INFO L443 ceAbstractionStarter]: For program point L71(line 71) no Hoare annotation was computed. [2019-10-13 19:52:57,491 INFO L439 ceAbstractionStarter]: At program point mainENTRY(lines 8 75) the Hoare annotation is: (or (not (<= 0 (+ |old(~SIZE~0)| 32768))) (and (<= 0 (+ ~SIZE~0 32768)) (<= ~SIZE~0 32767)) (not (<= |old(~SIZE~0)| 32767))) [2019-10-13 19:52:57,491 INFO L443 ceAbstractionStarter]: For program point L22-2(lines 22 25) no Hoare annotation was computed. [2019-10-13 19:52:57,491 INFO L439 ceAbstractionStarter]: At program point L22-3(lines 22 25) the Hoare annotation is: (or (not (<= 0 (+ |old(~SIZE~0)| 32768))) (not (<= |old(~SIZE~0)| 32767))) [2019-10-13 19:52:57,491 INFO L443 ceAbstractionStarter]: For program point L22-4(lines 22 25) no Hoare annotation was computed. [2019-10-13 19:52:57,491 INFO L443 ceAbstractionStarter]: For program point L47-2(lines 47 50) no Hoare annotation was computed. [2019-10-13 19:52:57,491 INFO L439 ceAbstractionStarter]: At program point L47-3(lines 47 50) the Hoare annotation is: (or (not (<= 0 (+ |old(~SIZE~0)| 32768))) (not (<= |old(~SIZE~0)| 32767))) [2019-10-13 19:52:57,491 INFO L443 ceAbstractionStarter]: For program point L47-4(lines 47 50) no Hoare annotation was computed. [2019-10-13 19:52:57,492 INFO L443 ceAbstractionStarter]: For program point L32-2(lines 32 35) no Hoare annotation was computed. [2019-10-13 19:52:57,492 INFO L439 ceAbstractionStarter]: At program point L32-3(lines 32 35) the Hoare annotation is: (or (not (<= 0 (+ |old(~SIZE~0)| 32768))) (not (<= |old(~SIZE~0)| 32767))) [2019-10-13 19:52:57,492 INFO L443 ceAbstractionStarter]: For program point L32-4(lines 32 35) no Hoare annotation was computed. [2019-10-13 19:52:57,494 INFO L443 ceAbstractionStarter]: For program point L57-2(lines 57 60) no Hoare annotation was computed. [2019-10-13 19:52:57,494 INFO L439 ceAbstractionStarter]: At program point L57-3(lines 57 60) the Hoare annotation is: (or (not (<= 0 (+ |old(~SIZE~0)| 32768))) (not (<= |old(~SIZE~0)| 32767))) [2019-10-13 19:52:57,495 INFO L443 ceAbstractionStarter]: For program point L57-4(lines 57 60) no Hoare annotation was computed. [2019-10-13 19:52:57,495 INFO L443 ceAbstractionStarter]: For program point L17-2(lines 17 20) no Hoare annotation was computed. [2019-10-13 19:52:57,495 INFO L439 ceAbstractionStarter]: At program point L17-3(lines 17 20) the Hoare annotation is: (or (not (<= 0 (+ |old(~SIZE~0)| 32768))) (not (<= |old(~SIZE~0)| 32767))) [2019-10-13 19:52:57,495 INFO L443 ceAbstractionStarter]: For program point L17-4(lines 17 20) no Hoare annotation was computed. [2019-10-13 19:52:57,495 INFO L443 ceAbstractionStarter]: For program point L42-2(lines 42 45) no Hoare annotation was computed. [2019-10-13 19:52:57,495 INFO L439 ceAbstractionStarter]: At program point L42-3(lines 42 45) the Hoare annotation is: (or (not (<= 0 (+ |old(~SIZE~0)| 32768))) (not (<= |old(~SIZE~0)| 32767))) [2019-10-13 19:52:57,496 INFO L443 ceAbstractionStarter]: For program point L42-4(lines 42 45) no Hoare annotation was computed. [2019-10-13 19:52:57,496 INFO L443 ceAbstractionStarter]: For program point L67-2(lines 67 70) no Hoare annotation was computed. [2019-10-13 19:52:57,496 INFO L439 ceAbstractionStarter]: At program point L67-3(lines 67 70) the Hoare annotation is: (or (not (<= 0 (+ |old(~SIZE~0)| 32768))) (not (<= |old(~SIZE~0)| 32767))) [2019-10-13 19:52:57,497 INFO L439 ceAbstractionStarter]: At program point L67-4(lines 67 70) the Hoare annotation is: (or (= main_~sum~0 0) (not (<= 0 (+ |old(~SIZE~0)| 32768))) (not (<= |old(~SIZE~0)| 32767))) [2019-10-13 19:52:57,498 INFO L443 ceAbstractionStarter]: For program point L3-3(line 3) no Hoare annotation was computed. [2019-10-13 19:52:57,498 INFO L446 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(line 3) the Hoare annotation is: true [2019-10-13 19:52:57,498 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(line 3) no Hoare annotation was computed. [2019-10-13 19:52:57,498 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2019-10-13 19:52:57,498 INFO L443 ceAbstractionStarter]: For program point L3(line 3) no Hoare annotation was computed. [2019-10-13 19:52:57,499 INFO L443 ceAbstractionStarter]: For program point L3-1(line 3) no Hoare annotation was computed. [2019-10-13 19:52:57,530 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 07:52:57 BoogieIcfgContainer [2019-10-13 19:52:57,530 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-13 19:52:57,533 INFO L168 Benchmark]: Toolchain (without parser) took 2959.76 ms. Allocated memory was 139.5 MB in the beginning and 231.2 MB in the end (delta: 91.8 MB). Free memory was 99.9 MB in the beginning and 133.3 MB in the end (delta: -33.3 MB). Peak memory consumption was 58.4 MB. Max. memory is 7.1 GB. [2019-10-13 19:52:57,536 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 139.5 MB. Free memory was 118.7 MB in the beginning and 118.5 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-10-13 19:52:57,537 INFO L168 Benchmark]: CACSL2BoogieTranslator took 358.79 ms. Allocated memory was 139.5 MB in the beginning and 200.8 MB in the end (delta: 61.3 MB). Free memory was 99.7 MB in the beginning and 179.0 MB in the end (delta: -79.2 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. [2019-10-13 19:52:57,539 INFO L168 Benchmark]: Boogie Preprocessor took 72.73 ms. Allocated memory is still 200.8 MB. Free memory was 179.0 MB in the beginning and 177.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2019-10-13 19:52:57,540 INFO L168 Benchmark]: RCFGBuilder took 402.65 ms. Allocated memory is still 200.8 MB. Free memory was 177.0 MB in the beginning and 155.8 MB in the end (delta: 21.2 MB). Peak memory consumption was 21.2 MB. Max. memory is 7.1 GB. [2019-10-13 19:52:57,541 INFO L168 Benchmark]: TraceAbstraction took 2120.66 ms. Allocated memory was 200.8 MB in the beginning and 231.2 MB in the end (delta: 30.4 MB). Free memory was 155.1 MB in the beginning and 133.3 MB in the end (delta: 21.8 MB). Peak memory consumption was 52.2 MB. Max. memory is 7.1 GB. [2019-10-13 19:52:57,551 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 139.5 MB. Free memory was 118.7 MB in the beginning and 118.5 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 358.79 ms. Allocated memory was 139.5 MB in the beginning and 200.8 MB in the end (delta: 61.3 MB). Free memory was 99.7 MB in the beginning and 179.0 MB in the end (delta: -79.2 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 72.73 ms. Allocated memory is still 200.8 MB. Free memory was 179.0 MB in the beginning and 177.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 402.65 ms. Allocated memory is still 200.8 MB. Free memory was 177.0 MB in the beginning and 155.8 MB in the end (delta: 21.2 MB). Peak memory consumption was 21.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2120.66 ms. Allocated memory was 200.8 MB in the beginning and 231.2 MB in the end (delta: 30.4 MB). Free memory was 155.1 MB in the beginning and 133.3 MB in the end (delta: 21.8 MB). Peak memory consumption was 52.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 3]: 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: 62]: Loop Invariant Derived loop invariant: !(0 <= \old(SIZE) + 32768) || !(\old(SIZE) <= 32767) - InvariantResult [Line: 57]: Loop Invariant Derived loop invariant: !(0 <= \old(SIZE) + 32768) || !(\old(SIZE) <= 32767) - InvariantResult [Line: 52]: Loop Invariant Derived loop invariant: !(0 <= \old(SIZE) + 32768) || !(\old(SIZE) <= 32767) - InvariantResult [Line: 47]: Loop Invariant Derived loop invariant: !(0 <= \old(SIZE) + 32768) || !(\old(SIZE) <= 32767) - InvariantResult [Line: 42]: Loop Invariant Derived loop invariant: !(0 <= \old(SIZE) + 32768) || !(\old(SIZE) <= 32767) - InvariantResult [Line: 37]: Loop Invariant Derived loop invariant: !(0 <= \old(SIZE) + 32768) || !(\old(SIZE) <= 32767) - InvariantResult [Line: 32]: Loop Invariant Derived loop invariant: !(0 <= \old(SIZE) + 32768) || !(\old(SIZE) <= 32767) - InvariantResult [Line: 27]: Loop Invariant Derived loop invariant: !(0 <= \old(SIZE) + 32768) || !(\old(SIZE) <= 32767) - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: !(0 <= \old(SIZE) + 32768) || !(\old(SIZE) <= 32767) - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: !(0 <= \old(SIZE) + 32768) || !(\old(SIZE) <= 32767) - InvariantResult [Line: 67]: Loop Invariant Derived loop invariant: !(0 <= \old(SIZE) + 32768) || !(\old(SIZE) <= 32767) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 52 locations, 1 error locations. Result: SAFE, OverallTime: 2.0s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, HoareTripleCheckerStatistics: 186 SDtfs, 71 SDslu, 159 SDs, 0 SdLazy, 141 SolverSat, 29 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 68 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=64occurred in iteration=3, 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, 11 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 17 LocationsWithAnnotation, 21 PreInvPairs, 22 NumberOfFragments, 167 HoareAnnotationTreeSize, 21 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 17 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 242 NumberOfCodeBlocks, 242 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 289 ConstructedInterpolants, 0 QuantifiedInterpolants, 17657 SizeOfPredicates, 3 NumberOfNonLiveVariables, 150 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 7 InterpolantComputations, 4 PerfectInterpolantSequences, 33/36 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: TIME[ms]: 134, ITERATIONS: 1, WAS_STRONG: 1, WEAKENING_RATIO: 0.9811320754716981, AVG_VARS_REMOVED_DURING_WEAKENING: 0.7924528301886793, AVG_WEAKENED_CONJUNCTS: 0.3018867924528302, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...