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-tiling/skipped.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-14 23:52:57,258 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-14 23:52:57,261 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-14 23:52:57,279 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-14 23:52:57,279 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-14 23:52:57,281 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-14 23:52:57,283 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-14 23:52:57,292 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-14 23:52:57,296 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-14 23:52:57,300 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-14 23:52:57,301 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-14 23:52:57,303 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-14 23:52:57,303 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-14 23:52:57,305 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-14 23:52:57,307 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-14 23:52:57,308 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-14 23:52:57,310 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-14 23:52:57,310 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-14 23:52:57,312 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-14 23:52:57,316 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-14 23:52:57,321 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-14 23:52:57,323 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-14 23:52:57,326 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-14 23:52:57,326 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-14 23:52:57,328 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-14 23:52:57,329 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-14 23:52:57,329 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-14 23:52:57,330 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-14 23:52:57,332 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-14 23:52:57,333 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-14 23:52:57,333 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-14 23:52:57,335 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-14 23:52:57,335 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-14 23:52:57,336 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-14 23:52:57,337 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-14 23:52:57,338 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-14 23:52:57,338 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-14 23:52:57,339 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-14 23:52:57,339 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-14 23:52:57,339 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-14 23:52:57,341 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-14 23:52:57,342 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-14 23:52:57,372 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-14 23:52:57,372 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-14 23:52:57,374 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-14 23:52:57,374 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-14 23:52:57,374 INFO L138 SettingsManager]: * Use SBE=true [2019-10-14 23:52:57,374 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-14 23:52:57,375 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-14 23:52:57,375 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-14 23:52:57,375 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-14 23:52:57,375 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-14 23:52:57,375 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-14 23:52:57,376 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-14 23:52:57,376 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-14 23:52:57,376 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-14 23:52:57,379 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-14 23:52:57,379 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-14 23:52:57,379 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-14 23:52:57,379 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-14 23:52:57,379 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-14 23:52:57,380 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-14 23:52:57,380 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-14 23:52:57,380 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-14 23:52:57,380 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-14 23:52:57,380 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-14 23:52:57,381 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-14 23:52:57,381 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-14 23:52:57,381 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-14 23:52:57,385 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-14 23:52:57,385 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 [2019-10-14 23:52:57,662 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-14 23:52:57,683 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-14 23:52:57,687 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-14 23:52:57,689 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-14 23:52:57,689 INFO L275 PluginConnector]: CDTParser initialized [2019-10-14 23:52:57,690 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-tiling/skipped.c [2019-10-14 23:52:57,760 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eaef5e6d8/eab9674013374435a5ffd6566d52e41e/FLAG06feda975 [2019-10-14 23:52:58,188 INFO L306 CDTParser]: Found 1 translation units. [2019-10-14 23:52:58,189 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/array-tiling/skipped.c [2019-10-14 23:52:58,195 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eaef5e6d8/eab9674013374435a5ffd6566d52e41e/FLAG06feda975 [2019-10-14 23:52:58,594 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eaef5e6d8/eab9674013374435a5ffd6566d52e41e [2019-10-14 23:52:58,604 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-14 23:52:58,606 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-14 23:52:58,607 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-14 23:52:58,607 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-14 23:52:58,611 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-14 23:52:58,612 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 11:52:58" (1/1) ... [2019-10-14 23:52:58,615 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@73d9ee48 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:52:58, skipping insertion in model container [2019-10-14 23:52:58,615 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 11:52:58" (1/1) ... [2019-10-14 23:52:58,622 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-14 23:52:58,645 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-14 23:52:58,836 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-14 23:52:58,847 INFO L188 MainTranslator]: Completed pre-run [2019-10-14 23:52:58,866 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-14 23:52:58,881 INFO L192 MainTranslator]: Completed translation [2019-10-14 23:52:58,881 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:52:58 WrapperNode [2019-10-14 23:52:58,881 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-14 23:52:58,882 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-14 23:52:58,882 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-14 23:52:58,882 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-14 23:52:58,987 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:52:58" (1/1) ... [2019-10-14 23:52:58,988 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:52:58" (1/1) ... [2019-10-14 23:52:58,994 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:52:58" (1/1) ... [2019-10-14 23:52:58,994 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:52:58" (1/1) ... [2019-10-14 23:52:59,002 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:52:58" (1/1) ... [2019-10-14 23:52:59,008 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:52:58" (1/1) ... [2019-10-14 23:52:59,009 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:52:58" (1/1) ... [2019-10-14 23:52:59,011 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-14 23:52:59,012 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-14 23:52:59,012 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-14 23:52:59,012 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-14 23:52:59,013 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:52:58" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-14 23:52:59,072 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-14 23:52:59,072 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-14 23:52:59,072 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-10-14 23:52:59,073 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-14 23:52:59,073 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-14 23:52:59,073 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-10-14 23:52:59,073 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-10-14 23:52:59,073 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-14 23:52:59,073 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-14 23:52:59,074 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-14 23:52:59,074 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-14 23:52:59,074 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-14 23:52:59,074 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-14 23:52:59,074 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-14 23:52:59,074 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-14 23:52:59,075 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-14 23:52:59,378 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-14 23:52:59,378 INFO L284 CfgBuilder]: Removed 3 assume(true) statements. [2019-10-14 23:52:59,380 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:52:59 BoogieIcfgContainer [2019-10-14 23:52:59,380 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-14 23:52:59,381 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-14 23:52:59,382 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-14 23:52:59,385 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-14 23:52:59,385 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 11:52:58" (1/3) ... [2019-10-14 23:52:59,385 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@107ca5f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 11:52:59, skipping insertion in model container [2019-10-14 23:52:59,386 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:52:58" (2/3) ... [2019-10-14 23:52:59,386 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@107ca5f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 11:52:59, skipping insertion in model container [2019-10-14 23:52:59,386 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:52:59" (3/3) ... [2019-10-14 23:52:59,388 INFO L109 eAbstractionObserver]: Analyzing ICFG skipped.c [2019-10-14 23:52:59,398 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-14 23:52:59,405 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-14 23:52:59,417 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-14 23:52:59,445 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-14 23:52:59,445 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-14 23:52:59,446 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-14 23:52:59,446 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-14 23:52:59,446 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-14 23:52:59,446 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-14 23:52:59,446 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-14 23:52:59,446 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-14 23:52:59,461 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states. [2019-10-14 23:52:59,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-10-14 23:52:59,467 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:52:59,468 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 23:52:59,470 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:52:59,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:52:59,474 INFO L82 PathProgramCache]: Analyzing trace with hash -446282704, now seen corresponding path program 1 times [2019-10-14 23:52:59,481 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-14 23:52:59,481 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1801554] [2019-10-14 23:52:59,482 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:52:59,482 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:52:59,482 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:52:59,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:52:59,611 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 23:52:59,612 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1801554] [2019-10-14 23:52:59,612 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:52:59,613 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-14 23:52:59,613 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1278468495] [2019-10-14 23:52:59,618 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-14 23:52:59,619 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-14 23:52:59,634 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-14 23:52:59,635 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-14 23:52:59,637 INFO L87 Difference]: Start difference. First operand 31 states. Second operand 2 states. [2019-10-14 23:52:59,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:52:59,662 INFO L93 Difference]: Finished difference Result 53 states and 71 transitions. [2019-10-14 23:52:59,663 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-14 23:52:59,664 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 16 [2019-10-14 23:52:59,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:52:59,673 INFO L225 Difference]: With dead ends: 53 [2019-10-14 23:52:59,673 INFO L226 Difference]: Without dead ends: 26 [2019-10-14 23:52:59,676 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 [2019-10-14 23:52:59,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2019-10-14 23:52:59,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2019-10-14 23:52:59,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2019-10-14 23:52:59,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 30 transitions. [2019-10-14 23:52:59,719 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 30 transitions. Word has length 16 [2019-10-14 23:52:59,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:52:59,720 INFO L462 AbstractCegarLoop]: Abstraction has 26 states and 30 transitions. [2019-10-14 23:52:59,720 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-14 23:52:59,720 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 30 transitions. [2019-10-14 23:52:59,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-10-14 23:52:59,721 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:52:59,721 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 23:52:59,722 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:52:59,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:52:59,723 INFO L82 PathProgramCache]: Analyzing trace with hash -1281654888, now seen corresponding path program 1 times [2019-10-14 23:52:59,723 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-14 23:52:59,724 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1540322961] [2019-10-14 23:52:59,724 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:52:59,724 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:52:59,724 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:52:59,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:52:59,843 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 23:52:59,844 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1540322961] [2019-10-14 23:52:59,845 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:52:59,845 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-14 23:52:59,845 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1529067780] [2019-10-14 23:52:59,847 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-14 23:52:59,849 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-14 23:52:59,850 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-14 23:52:59,850 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-14 23:52:59,850 INFO L87 Difference]: Start difference. First operand 26 states and 30 transitions. Second operand 3 states. [2019-10-14 23:52:59,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:52:59,965 INFO L93 Difference]: Finished difference Result 45 states and 53 transitions. [2019-10-14 23:52:59,967 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-14 23:52:59,967 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 16 [2019-10-14 23:52:59,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:52:59,969 INFO L225 Difference]: With dead ends: 45 [2019-10-14 23:52:59,969 INFO L226 Difference]: Without dead ends: 28 [2019-10-14 23:52:59,970 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 [2019-10-14 23:52:59,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2019-10-14 23:52:59,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 27. [2019-10-14 23:52:59,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2019-10-14 23:52:59,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 31 transitions. [2019-10-14 23:52:59,984 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 31 transitions. Word has length 16 [2019-10-14 23:52:59,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:52:59,985 INFO L462 AbstractCegarLoop]: Abstraction has 27 states and 31 transitions. [2019-10-14 23:52:59,985 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-14 23:52:59,986 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 31 transitions. [2019-10-14 23:52:59,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-10-14 23:52:59,988 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:52:59,988 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 23:52:59,989 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:52:59,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:52:59,990 INFO L82 PathProgramCache]: Analyzing trace with hash 1237885334, now seen corresponding path program 1 times [2019-10-14 23:52:59,991 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-14 23:52:59,991 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1630258173] [2019-10-14 23:52:59,991 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:52:59,992 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:52:59,992 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:53:00,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:53:00,127 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-14 23:53:00,128 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1630258173] [2019-10-14 23:53:00,128 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:53:00,130 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-14 23:53:00,131 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1625085913] [2019-10-14 23:53:00,132 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-14 23:53:00,132 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-14 23:53:00,132 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-14 23:53:00,133 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-14 23:53:00,137 INFO L87 Difference]: Start difference. First operand 27 states and 31 transitions. Second operand 4 states. [2019-10-14 23:53:00,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:53:00,246 INFO L93 Difference]: Finished difference Result 43 states and 50 transitions. [2019-10-14 23:53:00,246 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-14 23:53:00,246 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2019-10-14 23:53:00,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:53:00,248 INFO L225 Difference]: With dead ends: 43 [2019-10-14 23:53:00,248 INFO L226 Difference]: Without dead ends: 32 [2019-10-14 23:53:00,249 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 [2019-10-14 23:53:00,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2019-10-14 23:53:00,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 28. [2019-10-14 23:53:00,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2019-10-14 23:53:00,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 32 transitions. [2019-10-14 23:53:00,256 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 32 transitions. Word has length 18 [2019-10-14 23:53:00,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:53:00,256 INFO L462 AbstractCegarLoop]: Abstraction has 28 states and 32 transitions. [2019-10-14 23:53:00,256 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-14 23:53:00,256 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 32 transitions. [2019-10-14 23:53:00,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2019-10-14 23:53:00,257 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:53:00,258 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] [2019-10-14 23:53:00,258 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:53:00,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:53:00,258 INFO L82 PathProgramCache]: Analyzing trace with hash -1565802059, now seen corresponding path program 1 times [2019-10-14 23:53:00,259 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-14 23:53:00,259 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1811626221] [2019-10-14 23:53:00,259 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:53:00,259 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:53:00,259 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:53:00,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:53:00,330 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-14 23:53:00,331 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1811626221] [2019-10-14 23:53:00,331 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [22579341] [2019-10-14 23:53:00,331 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-14 23:53:00,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:53:00,395 INFO L256 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 4 conjunts are in the unsatisfiable core [2019-10-14 23:53:00,402 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-14 23:53:00,462 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-14 23:53:00,464 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-14 23:53:00,504 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-14 23:53:00,505 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleAbstractInterpretation [1053797238] [2019-10-14 23:53:00,513 INFO L211 CegarAbsIntRunner]: Running AI on error trace of length 24 [2019-10-14 23:53:00,575 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-10-14 23:53:00,575 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-10-14 23:53:00,643 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-10-14 23:53:00,644 INFO L272 AbstractInterpreter]: Visited 7 different actions 7 times. Never merged. Never widened. Performed 24 root evaluator evaluations with a maximum evaluation depth of 3. Performed 24 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Never found a fixpoint. Largest state had 28 variables. [2019-10-14 23:53:00,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:53:00,661 INFO L536 sIntCurrentIteration]: Generating AbsInt predicates [2019-10-14 23:53:00,703 INFO L227 lantSequenceWeakener]: Weakened 5 states. On average, predicates are now at 77.5% of their original sizes. [2019-10-14 23:53:00,703 INFO L551 sIntCurrentIteration]: Unifying AI predicates [2019-10-14 23:53:00,711 INFO L553 sIntCurrentIteration]: We unified 22 AI predicates to 22 [2019-10-14 23:53:00,711 INFO L562 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-10-14 23:53:00,712 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 3 imperfect interpolant sequences. [2019-10-14 23:53:00,712 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4, 4, 4] total 9 [2019-10-14 23:53:00,712 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1679699617] [2019-10-14 23:53:00,713 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-14 23:53:00,714 INFO L137 tionRefinementEngine]: Using predicate unifier AbsIntPredicateUnifier provided by strategy TAIPAN [2019-10-14 23:53:00,714 INFO L124 tionRefinementEngine]: Using hoare triple checker CachingHoareTripleCheckerMap provided by strategy [2019-10-14 23:53:00,714 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-14 23:53:00,715 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-14 23:53:00,715 INFO L87 Difference]: Start difference. First operand 28 states and 32 transitions. Second operand 4 states. [2019-10-14 23:53:00,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:53:00,719 INFO L93 Difference]: Finished difference Result 28 states and 32 transitions. [2019-10-14 23:53:00,719 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-14 23:53:00,719 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 23 [2019-10-14 23:53:00,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:53:00,720 INFO L225 Difference]: With dead ends: 28 [2019-10-14 23:53:00,720 INFO L226 Difference]: Without dead ends: 0 [2019-10-14 23:53:00,720 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-14 23:53:00,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-14 23:53:00,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-14 23:53:00,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-14 23:53:00,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-14 23:53:00,721 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 23 [2019-10-14 23:53:00,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:53:00,722 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-14 23:53:00,722 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-14 23:53:00,722 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-14 23:53:00,722 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-14 23:53:00,923 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-14 23:53:00,928 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-14 23:53:01,029 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2019-10-14 23:53:01,029 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2019-10-14 23:53:01,029 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-10-14 23:53:01,030 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-14 23:53:01,030 INFO L439 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (and (<= 0 (+ ~SIZE~0 2147483648)) (<= ~SIZE~0 2147483647) (= ~MAX~0 100000)) [2019-10-14 23:53:01,030 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-10-14 23:53:01,030 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-14 23:53:01,030 INFO L443 ceAbstractionStarter]: For program point L27-2(lines 27 37) no Hoare annotation was computed. [2019-10-14 23:53:01,030 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 11 45) no Hoare annotation was computed. [2019-10-14 23:53:01,031 INFO L439 ceAbstractionStarter]: At program point L27-3(lines 27 37) the Hoare annotation is: (or (not (<= |old(~SIZE~0)| 2147483647)) (not (= 100000 ~MAX~0)) (not (<= 0 (+ |old(~SIZE~0)| 2147483648)))) [2019-10-14 23:53:01,031 INFO L443 ceAbstractionStarter]: For program point L27-4(lines 27 37) no Hoare annotation was computed. [2019-10-14 23:53:01,031 INFO L443 ceAbstractionStarter]: For program point L19-2(lines 19 22) no Hoare annotation was computed. [2019-10-14 23:53:01,031 INFO L439 ceAbstractionStarter]: At program point L19-3(lines 19 22) the Hoare annotation is: (or (not (<= |old(~SIZE~0)| 2147483647)) (not (= 100000 ~MAX~0)) (not (<= 0 (+ |old(~SIZE~0)| 2147483648)))) [2019-10-14 23:53:01,031 INFO L443 ceAbstractionStarter]: For program point L19-4(lines 15 43) no Hoare annotation was computed. [2019-10-14 23:53:01,031 INFO L439 ceAbstractionStarter]: At program point L41(line 41) the Hoare annotation is: (or (not (<= |old(~SIZE~0)| 2147483647)) (not (= 100000 ~MAX~0)) (not (<= 0 (+ |old(~SIZE~0)| 2147483648)))) [2019-10-14 23:53:01,032 INFO L443 ceAbstractionStarter]: For program point L41-1(line 41) no Hoare annotation was computed. [2019-10-14 23:53:01,032 INFO L443 ceAbstractionStarter]: For program point L33(lines 33 36) no Hoare annotation was computed. [2019-10-14 23:53:01,032 INFO L443 ceAbstractionStarter]: For program point L29(lines 29 32) no Hoare annotation was computed. [2019-10-14 23:53:01,032 INFO L443 ceAbstractionStarter]: For program point L29-2(lines 29 32) no Hoare annotation was computed. [2019-10-14 23:53:01,032 INFO L443 ceAbstractionStarter]: For program point mainFINAL(lines 11 45) no Hoare annotation was computed. [2019-10-14 23:53:01,032 INFO L439 ceAbstractionStarter]: At program point mainENTRY(lines 11 45) the Hoare annotation is: (or (not (<= |old(~SIZE~0)| 2147483647)) (not (= 100000 ~MAX~0)) (not (<= 0 (+ |old(~SIZE~0)| 2147483648))) (and (<= 0 (+ ~SIZE~0 2147483648)) (<= ~SIZE~0 2147483647))) [2019-10-14 23:53:01,033 INFO L443 ceAbstractionStarter]: For program point L14(lines 14 43) no Hoare annotation was computed. [2019-10-14 23:53:01,033 INFO L443 ceAbstractionStarter]: For program point L14-1(lines 14 43) no Hoare annotation was computed. [2019-10-14 23:53:01,033 INFO L443 ceAbstractionStarter]: For program point L39-2(lines 39 42) no Hoare annotation was computed. [2019-10-14 23:53:01,033 INFO L439 ceAbstractionStarter]: At program point L39-3(lines 39 42) the Hoare annotation is: (or (not (<= |old(~SIZE~0)| 2147483647)) (not (= 100000 ~MAX~0)) (not (<= 0 (+ |old(~SIZE~0)| 2147483648)))) [2019-10-14 23:53:01,033 INFO L443 ceAbstractionStarter]: For program point L3-3(line 3) no Hoare annotation was computed. [2019-10-14 23:53:01,033 INFO L446 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(line 3) the Hoare annotation is: true [2019-10-14 23:53:01,034 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2019-10-14 23:53:01,034 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(line 3) no Hoare annotation was computed. [2019-10-14 23:53:01,034 INFO L443 ceAbstractionStarter]: For program point L3(line 3) no Hoare annotation was computed. [2019-10-14 23:53:01,034 INFO L443 ceAbstractionStarter]: For program point L3-1(line 3) no Hoare annotation was computed. [2019-10-14 23:53:01,057 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.10 11:53:01 BoogieIcfgContainer [2019-10-14 23:53:01,057 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-14 23:53:01,062 INFO L168 Benchmark]: Toolchain (without parser) took 2453.15 ms. Allocated memory was 139.5 MB in the beginning and 233.3 MB in the end (delta: 93.8 MB). Free memory was 103.1 MB in the beginning and 184.5 MB in the end (delta: -81.4 MB). Peak memory consumption was 12.5 MB. Max. memory is 7.1 GB. [2019-10-14 23:53:01,063 INFO L168 Benchmark]: CDTParser took 1.18 ms. Allocated memory is still 139.5 MB. Free memory was 121.4 MB in the beginning and 121.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-10-14 23:53:01,065 INFO L168 Benchmark]: CACSL2BoogieTranslator took 274.57 ms. Allocated memory is still 139.5 MB. Free memory was 102.7 MB in the beginning and 92.1 MB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. [2019-10-14 23:53:01,067 INFO L168 Benchmark]: Boogie Preprocessor took 129.63 ms. Allocated memory was 139.5 MB in the beginning and 204.5 MB in the end (delta: 65.0 MB). Free memory was 92.1 MB in the beginning and 182.2 MB in the end (delta: -90.1 MB). Peak memory consumption was 13.6 MB. Max. memory is 7.1 GB. [2019-10-14 23:53:01,072 INFO L168 Benchmark]: RCFGBuilder took 368.37 ms. Allocated memory is still 204.5 MB. Free memory was 182.2 MB in the beginning and 165.9 MB in the end (delta: 16.3 MB). Peak memory consumption was 16.3 MB. Max. memory is 7.1 GB. [2019-10-14 23:53:01,072 INFO L168 Benchmark]: TraceAbstraction took 1676.12 ms. Allocated memory was 204.5 MB in the beginning and 233.3 MB in the end (delta: 28.8 MB). Free memory was 165.3 MB in the beginning and 184.5 MB in the end (delta: -19.3 MB). Peak memory consumption was 9.6 MB. Max. memory is 7.1 GB. [2019-10-14 23:53:01,082 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.18 ms. Allocated memory is still 139.5 MB. Free memory was 121.4 MB in the beginning and 121.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 274.57 ms. Allocated memory is still 139.5 MB. Free memory was 102.7 MB in the beginning and 92.1 MB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 129.63 ms. Allocated memory was 139.5 MB in the beginning and 204.5 MB in the end (delta: 65.0 MB). Free memory was 92.1 MB in the beginning and 182.2 MB in the end (delta: -90.1 MB). Peak memory consumption was 13.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 368.37 ms. Allocated memory is still 204.5 MB. Free memory was 182.2 MB in the beginning and 165.9 MB in the end (delta: 16.3 MB). Peak memory consumption was 16.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1676.12 ms. Allocated memory was 204.5 MB in the beginning and 233.3 MB in the end (delta: 28.8 MB). Free memory was 165.3 MB in the beginning and 184.5 MB in the end (delta: -19.3 MB). Peak memory consumption was 9.6 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: 27]: Loop Invariant Derived loop invariant: (!(\old(SIZE) <= 2147483647) || !(100000 == MAX)) || !(0 <= \old(SIZE) + 2147483648) - InvariantResult [Line: 39]: Loop Invariant Derived loop invariant: (!(\old(SIZE) <= 2147483647) || !(100000 == MAX)) || !(0 <= \old(SIZE) + 2147483648) - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: (!(\old(SIZE) <= 2147483647) || !(100000 == MAX)) || !(0 <= \old(SIZE) + 2147483648) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 31 locations, 1 error locations. Result: SAFE, OverallTime: 1.5s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, HoareTripleCheckerStatistics: 89 SDtfs, 37 SDslu, 24 SDs, 0 SdLazy, 50 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 31 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=31occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 5 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 12 PreInvPairs, 12 NumberOfFragments, 99 HoareAnnotationTreeSize, 12 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 9 FomulaSimplificationsInter, 3 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 96 NumberOfCodeBlocks, 96 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 113 ConstructedInterpolants, 0 QuantifiedInterpolants, 3565 SizeOfPredicates, 3 NumberOfNonLiveVariables, 101 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 6 InterpolantComputations, 3 PerfectInterpolantSequences, 4/7 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: TIME[ms]: 148, ITERATIONS: 1, WAS_STRONG: 1, WEAKENING_RATIO: 0.9659090909090909, AVG_VARS_REMOVED_DURING_WEAKENING: 0.8636363636363636, AVG_WEAKENED_CONJUNCTS: 1.0, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...