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/pr2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-14 23:52:52,933 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-14 23:52:52,936 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-14 23:52:52,954 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-14 23:52:52,954 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-14 23:52:52,957 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-14 23:52:52,959 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-14 23:52:52,968 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-14 23:52:52,972 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-14 23:52:52,976 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-14 23:52:52,977 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-14 23:52:52,979 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-14 23:52:52,979 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-14 23:52:52,981 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-14 23:52:52,983 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-14 23:52:52,985 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-14 23:52:52,986 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-14 23:52:52,987 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-14 23:52:52,988 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-14 23:52:52,993 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-14 23:52:52,997 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-14 23:52:53,000 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-14 23:52:53,003 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-14 23:52:53,004 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-14 23:52:53,007 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-10-14 23:52:53,012 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-14 23:52:53,014 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-14 23:52:53,014 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-14 23:52:53,015 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-14 23:52:53,017 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-14 23:52:53,017 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-14 23:52:53,018 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-14 23:52:53,018 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-14 23:52:53,018 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-14 23:52:53,019 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-14 23:52:53,021 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-14 23:52:53,022 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 23:52:53,045 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-14 23:52:53,046 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-14 23:52:53,047 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-14 23:52:53,047 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-14 23:52:53,047 INFO L138 SettingsManager]: * Use SBE=true [2019-10-14 23:52:53,048 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-14 23:52:53,048 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-14 23:52:53,048 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-14 23:52:53,048 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-14 23:52:53,048 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-14 23:52:53,049 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-14 23:52:53,049 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-14 23:52:53,050 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-14 23:52:53,050 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-14 23:52:53,051 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-14 23:52:53,051 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-14 23:52:53,051 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-14 23:52:53,051 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-14 23:52:53,051 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-14 23:52:53,052 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-14 23:52:53,052 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-14 23:52:53,052 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-14 23:52:53,055 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-14 23:52:53,055 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-14 23:52:53,055 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-14 23:52:53,055 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-14 23:52:53,056 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-14 23:52:53,056 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-14 23:52:53,056 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 23:52:53,363 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-14 23:52:53,377 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-14 23:52:53,381 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-14 23:52:53,383 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-14 23:52:53,383 INFO L275 PluginConnector]: CDTParser initialized [2019-10-14 23:52:53,384 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-tiling/pr2.c [2019-10-14 23:52:53,449 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/24cbc8e04/77ad0855e5dd402aa7fe60f8062aff5c/FLAG01801dadf [2019-10-14 23:52:53,975 INFO L306 CDTParser]: Found 1 translation units. [2019-10-14 23:52:53,975 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/array-tiling/pr2.c [2019-10-14 23:52:53,983 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/24cbc8e04/77ad0855e5dd402aa7fe60f8062aff5c/FLAG01801dadf [2019-10-14 23:52:54,367 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/24cbc8e04/77ad0855e5dd402aa7fe60f8062aff5c [2019-10-14 23:52:54,377 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-14 23:52:54,380 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-14 23:52:54,381 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-14 23:52:54,381 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-14 23:52:54,385 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-14 23:52:54,386 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 11:52:54" (1/1) ... [2019-10-14 23:52:54,390 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ac9f523 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:52:54, skipping insertion in model container [2019-10-14 23:52:54,390 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 11:52:54" (1/1) ... [2019-10-14 23:52:54,398 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-14 23:52:54,418 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-14 23:52:54,613 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-14 23:52:54,626 INFO L188 MainTranslator]: Completed pre-run [2019-10-14 23:52:54,664 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-14 23:52:54,766 INFO L192 MainTranslator]: Completed translation [2019-10-14 23:52:54,767 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:52:54 WrapperNode [2019-10-14 23:52:54,767 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-14 23:52:54,767 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-14 23:52:54,768 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-14 23:52:54,768 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-14 23:52:54,781 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:52:54" (1/1) ... [2019-10-14 23:52:54,781 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:52:54" (1/1) ... [2019-10-14 23:52:54,788 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:52:54" (1/1) ... [2019-10-14 23:52:54,788 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:52:54" (1/1) ... [2019-10-14 23:52:54,796 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:52:54" (1/1) ... [2019-10-14 23:52:54,802 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:52:54" (1/1) ... [2019-10-14 23:52:54,804 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:52:54" (1/1) ... [2019-10-14 23:52:54,806 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-14 23:52:54,806 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-14 23:52:54,807 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-14 23:52:54,807 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-14 23:52:54,808 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:52:54" (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 [2019-10-14 23:52:54,859 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-14 23:52:54,859 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-14 23:52:54,859 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-10-14 23:52:54,860 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-14 23:52:54,860 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-14 23:52:54,860 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-10-14 23:52:54,860 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-10-14 23:52:54,860 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-14 23:52:54,860 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-14 23:52:54,861 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-14 23:52:54,861 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-14 23:52:54,861 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-14 23:52:54,861 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-14 23:52:54,861 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-14 23:52:54,861 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-14 23:52:55,146 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-14 23:52:55,146 INFO L284 CfgBuilder]: Removed 2 assume(true) statements. [2019-10-14 23:52:55,147 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:52:55 BoogieIcfgContainer [2019-10-14 23:52:55,147 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-14 23:52:55,148 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-14 23:52:55,149 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-14 23:52:55,151 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-14 23:52:55,152 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 11:52:54" (1/3) ... [2019-10-14 23:52:55,152 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@374c1907 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 11:52:55, skipping insertion in model container [2019-10-14 23:52:55,153 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:52:54" (2/3) ... [2019-10-14 23:52:55,153 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@374c1907 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 11:52:55, skipping insertion in model container [2019-10-14 23:52:55,153 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:52:55" (3/3) ... [2019-10-14 23:52:55,155 INFO L109 eAbstractionObserver]: Analyzing ICFG pr2.c [2019-10-14 23:52:55,166 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-14 23:52:55,172 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-14 23:52:55,186 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-14 23:52:55,208 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-14 23:52:55,208 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-14 23:52:55,208 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-14 23:52:55,208 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-14 23:52:55,208 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-14 23:52:55,209 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-14 23:52:55,209 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-14 23:52:55,209 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-14 23:52:55,226 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states. [2019-10-14 23:52:55,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-10-14 23:52:55,231 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:52:55,232 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 23:52:55,234 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:52:55,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:52:55,240 INFO L82 PathProgramCache]: Analyzing trace with hash 435909, now seen corresponding path program 1 times [2019-10-14 23:52:55,247 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-14 23:52:55,247 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1591301744] [2019-10-14 23:52:55,247 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:52:55,247 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:52:55,248 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:52:55,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:52:55,480 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 23:52:55,481 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1591301744] [2019-10-14 23:52:55,482 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:52:55,482 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-14 23:52:55,483 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [392069222] [2019-10-14 23:52:55,488 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-14 23:52:55,490 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-14 23:52:55,504 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-14 23:52:55,505 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-14 23:52:55,507 INFO L87 Difference]: Start difference. First operand 30 states. Second operand 5 states. [2019-10-14 23:52:55,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:52:55,593 INFO L93 Difference]: Finished difference Result 54 states and 69 transitions. [2019-10-14 23:52:55,594 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-14 23:52:55,595 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2019-10-14 23:52:55,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:52:55,606 INFO L225 Difference]: With dead ends: 54 [2019-10-14 23:52:55,606 INFO L226 Difference]: Without dead ends: 30 [2019-10-14 23:52:55,610 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 [2019-10-14 23:52:55,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2019-10-14 23:52:55,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 29. [2019-10-14 23:52:55,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2019-10-14 23:52:55,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 33 transitions. [2019-10-14 23:52:55,653 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 33 transitions. Word has length 16 [2019-10-14 23:52:55,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:52:55,654 INFO L462 AbstractCegarLoop]: Abstraction has 29 states and 33 transitions. [2019-10-14 23:52:55,654 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-14 23:52:55,654 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 33 transitions. [2019-10-14 23:52:55,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-10-14 23:52:55,656 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:52:55,656 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 23:52:55,656 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:52:55,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:52:55,657 INFO L82 PathProgramCache]: Analyzing trace with hash 2282951, now seen corresponding path program 1 times [2019-10-14 23:52:55,657 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-14 23:52:55,658 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [381337921] [2019-10-14 23:52:55,658 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:52:55,658 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:52:55,658 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:52:55,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:52:55,740 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 23:52:55,741 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [381337921] [2019-10-14 23:52:55,741 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:52:55,741 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-14 23:52:55,742 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [420315239] [2019-10-14 23:52:55,743 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-14 23:52:55,743 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-14 23:52:55,744 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-14 23:52:55,744 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-14 23:52:55,744 INFO L87 Difference]: Start difference. First operand 29 states and 33 transitions. Second operand 4 states. [2019-10-14 23:52:55,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:52:55,827 INFO L93 Difference]: Finished difference Result 50 states and 58 transitions. [2019-10-14 23:52:55,828 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-14 23:52:55,828 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 16 [2019-10-14 23:52:55,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:52:55,832 INFO L225 Difference]: With dead ends: 50 [2019-10-14 23:52:55,833 INFO L226 Difference]: Without dead ends: 33 [2019-10-14 23:52:55,834 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 23:52:55,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2019-10-14 23:52:55,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 30. [2019-10-14 23:52:55,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2019-10-14 23:52:55,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 34 transitions. [2019-10-14 23:52:55,852 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 34 transitions. Word has length 16 [2019-10-14 23:52:55,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:52:55,853 INFO L462 AbstractCegarLoop]: Abstraction has 30 states and 34 transitions. [2019-10-14 23:52:55,853 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-14 23:52:55,853 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 34 transitions. [2019-10-14 23:52:55,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-10-14 23:52:55,856 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:52:55,857 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] [2019-10-14 23:52:55,857 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:52:55,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:52:55,858 INFO L82 PathProgramCache]: Analyzing trace with hash -1753718226, now seen corresponding path program 1 times [2019-10-14 23:52:55,860 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-14 23:52:55,861 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1701266987] [2019-10-14 23:52:55,862 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:52:55,862 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:52:55,863 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:52:55,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:52:56,311 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 23:52:56,312 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1701266987] [2019-10-14 23:52:56,312 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1242856562] [2019-10-14 23:52:56,312 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 23:52:56,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:52:56,396 INFO L256 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 12 conjunts are in the unsatisfiable core [2019-10-14 23:52:56,404 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-14 23:52:56,517 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2019-10-14 23:52:56,518 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-14 23:52:56,534 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-14 23:52:56,535 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-10-14 23:52:56,536 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:26, output treesize:19 [2019-10-14 23:52:56,582 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-10-14 23:52:56,584 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2019-10-14 23:52:56,586 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-14 23:52:56,596 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-14 23:52:56,597 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-10-14 23:52:56,597 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:24, output treesize:11 [2019-10-14 23:52:56,644 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-14 23:52:56,674 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 23:52:56,675 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-14 23:52:56,681 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-14 23:52:56,752 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 15 [2019-10-14 23:52:56,760 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 24 [2019-10-14 23:52:56,760 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-10-14 23:52:56,762 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-14 23:52:56,763 INFO L496 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-10-14 23:52:56,765 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-14 23:52:56,765 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-10-14 23:52:56,765 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:17, output treesize:8 [2019-10-14 23:52:56,786 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 23:52:56,787 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleAbstractInterpretation [548743234] [2019-10-14 23:52:56,793 INFO L211 CegarAbsIntRunner]: Running AI on error trace of length 21 [2019-10-14 23:52:56,829 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-10-14 23:52:56,829 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-10-14 23:52:56,893 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-10-14 23:52:56,895 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 25 variables. [2019-10-14 23:52:56,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:52:56,898 INFO L536 sIntCurrentIteration]: Generating AbsInt predicates [2019-10-14 23:52:56,935 INFO L227 lantSequenceWeakener]: Weakened 5 states. On average, predicates are now at 96.67% of their original sizes. [2019-10-14 23:52:56,936 INFO L551 sIntCurrentIteration]: Unifying AI predicates [2019-10-14 23:52:56,944 INFO L553 sIntCurrentIteration]: We unified 19 AI predicates to 19 [2019-10-14 23:52:56,945 INFO L562 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-10-14 23:52:56,945 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 3 imperfect interpolant sequences. [2019-10-14 23:52:56,946 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9, 8, 6] total 19 [2019-10-14 23:52:56,946 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2018006470] [2019-10-14 23:52:56,946 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-14 23:52:56,947 INFO L137 tionRefinementEngine]: Using predicate unifier AbsIntPredicateUnifier provided by strategy TAIPAN [2019-10-14 23:52:56,947 INFO L124 tionRefinementEngine]: Using hoare triple checker CachingHoareTripleCheckerMap provided by strategy [2019-10-14 23:52:56,948 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-14 23:52:56,948 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-14 23:52:56,948 INFO L87 Difference]: Start difference. First operand 30 states and 34 transitions. Second operand 3 states. [2019-10-14 23:52:56,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:52:56,952 INFO L93 Difference]: Finished difference Result 30 states and 34 transitions. [2019-10-14 23:52:56,952 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-14 23:52:56,952 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 20 [2019-10-14 23:52:56,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:52:56,953 INFO L225 Difference]: With dead ends: 30 [2019-10-14 23:52:56,953 INFO L226 Difference]: Without dead ends: 0 [2019-10-14 23:52:56,954 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 18 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 23:52:56,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-14 23:52:56,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-14 23:52:56,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-14 23:52:56,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-14 23:52:56,955 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 20 [2019-10-14 23:52:56,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:52:56,955 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-14 23:52:56,955 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-14 23:52:56,955 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-14 23:52:56,955 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-14 23:52:57,158 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-14 23:52:57,164 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-14 23:52:57,221 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2019-10-14 23:52:57,222 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2019-10-14 23:52:57,222 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-10-14 23:52:57,222 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-14 23:52:57,222 INFO L439 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (and (<= ~CELLCOUNT~0 2147483647) (<= 0 (+ ~CELLCOUNT~0 2147483648))) [2019-10-14 23:52:57,222 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-10-14 23:52:57,223 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-14 23:52:57,223 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 8 49) no Hoare annotation was computed. [2019-10-14 23:52:57,223 INFO L443 ceAbstractionStarter]: For program point L19(line 19) no Hoare annotation was computed. [2019-10-14 23:52:57,223 INFO L443 ceAbstractionStarter]: For program point L11(lines 11 47) no Hoare annotation was computed. [2019-10-14 23:52:57,223 INFO L443 ceAbstractionStarter]: For program point L11-2(lines 11 47) no Hoare annotation was computed. [2019-10-14 23:52:57,223 INFO L443 ceAbstractionStarter]: For program point L24(lines 24 31) no Hoare annotation was computed. [2019-10-14 23:52:57,223 INFO L443 ceAbstractionStarter]: For program point L24-2(lines 23 41) no Hoare annotation was computed. [2019-10-14 23:52:57,224 INFO L443 ceAbstractionStarter]: For program point L45(line 45) no Hoare annotation was computed. [2019-10-14 23:52:57,224 INFO L439 ceAbstractionStarter]: At program point L45-2(line 45) the Hoare annotation is: (or (not (<= |old(~CELLCOUNT~0)| 2147483647)) (not (<= 0 (+ |old(~CELLCOUNT~0)| 2147483648)))) [2019-10-14 23:52:57,224 INFO L443 ceAbstractionStarter]: For program point L45-3(line 45) no Hoare annotation was computed. [2019-10-14 23:52:57,224 INFO L443 ceAbstractionStarter]: For program point mainFINAL(lines 8 49) no Hoare annotation was computed. [2019-10-14 23:52:57,226 INFO L439 ceAbstractionStarter]: At program point mainENTRY(lines 8 49) the Hoare annotation is: (or (and (<= ~CELLCOUNT~0 2147483647) (<= 0 (+ ~CELLCOUNT~0 2147483648))) (not (<= |old(~CELLCOUNT~0)| 2147483647)) (not (<= 0 (+ |old(~CELLCOUNT~0)| 2147483648)))) [2019-10-14 23:52:57,226 INFO L443 ceAbstractionStarter]: For program point L22-2(lines 22 41) no Hoare annotation was computed. [2019-10-14 23:52:57,227 INFO L439 ceAbstractionStarter]: At program point L22-3(lines 22 41) the Hoare annotation is: (or (not (<= |old(~CELLCOUNT~0)| 2147483647)) (not (<= 0 (+ |old(~CELLCOUNT~0)| 2147483648)))) [2019-10-14 23:52:57,227 INFO L443 ceAbstractionStarter]: For program point L22-4(lines 22 41) no Hoare annotation was computed. [2019-10-14 23:52:57,227 INFO L443 ceAbstractionStarter]: For program point L43-2(lines 43 46) no Hoare annotation was computed. [2019-10-14 23:52:57,227 INFO L439 ceAbstractionStarter]: At program point L43-3(lines 43 46) the Hoare annotation is: (or (not (<= |old(~CELLCOUNT~0)| 2147483647)) (not (<= 0 (+ |old(~CELLCOUNT~0)| 2147483648)))) [2019-10-14 23:52:57,227 INFO L443 ceAbstractionStarter]: For program point L43-4(lines 43 46) no Hoare annotation was computed. [2019-10-14 23:52:57,227 INFO L443 ceAbstractionStarter]: For program point L3-3(line 3) no Hoare annotation was computed. [2019-10-14 23:52:57,227 INFO L446 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(line 3) the Hoare annotation is: true [2019-10-14 23:52:57,228 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2019-10-14 23:52:57,228 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(line 3) no Hoare annotation was computed. [2019-10-14 23:52:57,228 INFO L443 ceAbstractionStarter]: For program point L3(line 3) no Hoare annotation was computed. [2019-10-14 23:52:57,228 INFO L443 ceAbstractionStarter]: For program point L3-1(line 3) no Hoare annotation was computed. [2019-10-14 23:52:57,245 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.10 11:52:57 BoogieIcfgContainer [2019-10-14 23:52:57,246 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-14 23:52:57,249 INFO L168 Benchmark]: Toolchain (without parser) took 2867.26 ms. Allocated memory was 138.9 MB in the beginning and 237.0 MB in the end (delta: 98.0 MB). Free memory was 104.1 MB in the beginning and 151.4 MB in the end (delta: -47.3 MB). Peak memory consumption was 50.8 MB. Max. memory is 7.1 GB. [2019-10-14 23:52:57,250 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 138.9 MB. Free memory was 122.2 MB in the beginning and 122.0 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-10-14 23:52:57,252 INFO L168 Benchmark]: CACSL2BoogieTranslator took 385.79 ms. Allocated memory was 138.9 MB in the beginning and 203.4 MB in the end (delta: 64.5 MB). Free memory was 103.9 MB in the beginning and 182.7 MB in the end (delta: -78.8 MB). Peak memory consumption was 23.8 MB. Max. memory is 7.1 GB. [2019-10-14 23:52:57,259 INFO L168 Benchmark]: Boogie Preprocessor took 38.62 ms. Allocated memory is still 203.4 MB. Free memory was 182.7 MB in the beginning and 180.9 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 7.1 GB. [2019-10-14 23:52:57,260 INFO L168 Benchmark]: RCFGBuilder took 341.19 ms. Allocated memory is still 203.4 MB. Free memory was 180.3 MB in the beginning and 164.6 MB in the end (delta: 15.7 MB). Peak memory consumption was 15.7 MB. Max. memory is 7.1 GB. [2019-10-14 23:52:57,261 INFO L168 Benchmark]: TraceAbstraction took 2097.32 ms. Allocated memory was 203.4 MB in the beginning and 237.0 MB in the end (delta: 33.6 MB). Free memory was 164.6 MB in the beginning and 151.4 MB in the end (delta: 13.2 MB). Peak memory consumption was 46.8 MB. Max. memory is 7.1 GB. [2019-10-14 23:52:57,272 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 138.9 MB. Free memory was 122.2 MB in the beginning and 122.0 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 385.79 ms. Allocated memory was 138.9 MB in the beginning and 203.4 MB in the end (delta: 64.5 MB). Free memory was 103.9 MB in the beginning and 182.7 MB in the end (delta: -78.8 MB). Peak memory consumption was 23.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 38.62 ms. Allocated memory is still 203.4 MB. Free memory was 182.7 MB in the beginning and 180.9 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 341.19 ms. Allocated memory is still 203.4 MB. Free memory was 180.3 MB in the beginning and 164.6 MB in the end (delta: 15.7 MB). Peak memory consumption was 15.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2097.32 ms. Allocated memory was 203.4 MB in the beginning and 237.0 MB in the end (delta: 33.6 MB). Free memory was 164.6 MB in the beginning and 151.4 MB in the end (delta: 13.2 MB). Peak memory consumption was 46.8 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: 43]: Loop Invariant Derived loop invariant: !(\old(CELLCOUNT) <= 2147483647) || !(0 <= \old(CELLCOUNT) + 2147483648) - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: !(\old(CELLCOUNT) <= 2147483647) || !(0 <= \old(CELLCOUNT) + 2147483648) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 30 locations, 1 error locations. Result: SAFE, OverallTime: 2.0s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 59 SDtfs, 40 SDslu, 108 SDs, 0 SdLazy, 39 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 29 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=30occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 4 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 8 LocationsWithAnnotation, 12 PreInvPairs, 12 NumberOfFragments, 65 HoareAnnotationTreeSize, 12 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 8 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 72 NumberOfCodeBlocks, 72 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 87 ConstructedInterpolants, 0 QuantifiedInterpolants, 6618 SizeOfPredicates, 14 NumberOfNonLiveVariables, 86 ConjunctsInSsa, 12 ConjunctsInUnsatCore, 5 InterpolantComputations, 2 PerfectInterpolantSequences, 0/3 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: TIME[ms]: 105, ITERATIONS: 1, WAS_STRONG: 1, WEAKENING_RATIO: 0.9385964912280703, AVG_VARS_REMOVED_DURING_WEAKENING: 0.9473684210526315, AVG_WEAKENED_CONJUNCTS: 0.8421052631578947, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...