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/loops/linear_sea.ch.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 01:06:02,072 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 01:06:02,079 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 01:06:02,093 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 01:06:02,094 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 01:06:02,095 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 01:06:02,097 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 01:06:02,107 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 01:06:02,111 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 01:06:02,113 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 01:06:02,115 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 01:06:02,116 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 01:06:02,117 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 01:06:02,118 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 01:06:02,121 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 01:06:02,122 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 01:06:02,123 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 01:06:02,124 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 01:06:02,125 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 01:06:02,130 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 01:06:02,134 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 01:06:02,136 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 01:06:02,139 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 01:06:02,140 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 01:06:02,142 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-10-15 01:06:02,146 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-15 01:06:02,147 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-15 01:06:02,148 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-15 01:06:02,149 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-15 01:06:02,150 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-15 01:06:02,150 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-15 01:06:02,151 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-15 01:06:02,151 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-15 01:06:02,151 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 01:06:02,152 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 01:06:02,153 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 01:06:02,154 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 [2019-10-15 01:06:02,181 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 01:06:02,182 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 01:06:02,186 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 01:06:02,186 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 01:06:02,186 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 01:06:02,187 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 01:06:02,187 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 01:06:02,187 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 01:06:02,187 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 01:06:02,187 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 01:06:02,188 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 01:06:02,189 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 01:06:02,189 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 01:06:02,189 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 01:06:02,189 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 01:06:02,190 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 01:06:02,190 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 01:06:02,190 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 01:06:02,190 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 01:06:02,190 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 01:06:02,191 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 01:06:02,191 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 01:06:02,191 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 01:06:02,191 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 01:06:02,191 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 01:06:02,192 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 01:06:02,192 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 01:06:02,192 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 01:06:02,192 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 [2019-10-15 01:06:02,462 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 01:06:02,475 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 01:06:02,478 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 01:06:02,479 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 01:06:02,480 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 01:06:02,480 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/linear_sea.ch.c [2019-10-15 01:06:02,553 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7f3096a9b/5d67740daad6472e8fbc86e80e09626f/FLAGd7b13511e [2019-10-15 01:06:03,020 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 01:06:03,020 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/linear_sea.ch.c [2019-10-15 01:06:03,026 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7f3096a9b/5d67740daad6472e8fbc86e80e09626f/FLAGd7b13511e [2019-10-15 01:06:03,439 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7f3096a9b/5d67740daad6472e8fbc86e80e09626f [2019-10-15 01:06:03,449 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 01:06:03,451 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 01:06:03,454 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 01:06:03,454 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 01:06:03,457 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 01:06:03,458 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:06:03" (1/1) ... [2019-10-15 01:06:03,461 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@734aed89 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:06:03, skipping insertion in model container [2019-10-15 01:06:03,461 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:06:03" (1/1) ... [2019-10-15 01:06:03,466 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 01:06:03,485 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 01:06:03,673 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:06:03,686 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 01:06:03,702 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:06:03,719 INFO L192 MainTranslator]: Completed translation [2019-10-15 01:06:03,719 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:06:03 WrapperNode [2019-10-15 01:06:03,720 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 01:06:03,720 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 01:06:03,720 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 01:06:03,720 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 01:06:03,808 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:06:03" (1/1) ... [2019-10-15 01:06:03,808 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:06:03" (1/1) ... [2019-10-15 01:06:03,816 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:06:03" (1/1) ... [2019-10-15 01:06:03,818 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:06:03" (1/1) ... [2019-10-15 01:06:03,828 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:06:03" (1/1) ... [2019-10-15 01:06:03,833 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:06:03" (1/1) ... [2019-10-15 01:06:03,835 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:06:03" (1/1) ... [2019-10-15 01:06:03,837 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 01:06:03,837 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 01:06:03,838 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 01:06:03,838 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 01:06:03,839 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:06:03" (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 [2019-10-15 01:06:03,887 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 01:06:03,888 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 01:06:03,888 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-10-15 01:06:03,888 INFO L138 BoogieDeclarations]: Found implementation of procedure linear_search [2019-10-15 01:06:03,888 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 01:06:03,888 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 01:06:03,888 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-15 01:06:03,888 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-10-15 01:06:03,888 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2019-10-15 01:06:03,889 INFO L130 BoogieDeclarations]: Found specification of procedure linear_search [2019-10-15 01:06:03,889 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-15 01:06:03,889 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 01:06:03,889 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-15 01:06:03,889 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-15 01:06:03,889 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 01:06:03,890 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 01:06:03,890 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-15 01:06:04,145 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 01:06:04,145 INFO L284 CfgBuilder]: Removed 1 assume(true) statements. [2019-10-15 01:06:04,147 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:06:04 BoogieIcfgContainer [2019-10-15 01:06:04,147 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 01:06:04,149 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 01:06:04,149 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 01:06:04,153 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 01:06:04,153 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 01:06:03" (1/3) ... [2019-10-15 01:06:04,154 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62c7ca3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:06:04, skipping insertion in model container [2019-10-15 01:06:04,154 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:06:03" (2/3) ... [2019-10-15 01:06:04,157 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62c7ca3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:06:04, skipping insertion in model container [2019-10-15 01:06:04,157 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:06:04" (3/3) ... [2019-10-15 01:06:04,159 INFO L109 eAbstractionObserver]: Analyzing ICFG linear_sea.ch.c [2019-10-15 01:06:04,171 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 01:06:04,178 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 01:06:04,190 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 01:06:04,215 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 01:06:04,215 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 01:06:04,215 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 01:06:04,215 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 01:06:04,215 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 01:06:04,215 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 01:06:04,216 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 01:06:04,216 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 01:06:04,235 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states. [2019-10-15 01:06:04,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-10-15 01:06:04,241 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:06:04,242 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:06:04,244 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:06:04,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:06:04,249 INFO L82 PathProgramCache]: Analyzing trace with hash -1860043698, now seen corresponding path program 1 times [2019-10-15 01:06:04,261 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:06:04,261 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1195974053] [2019-10-15 01:06:04,261 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:06:04,262 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:06:04,262 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:06:04,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:06:04,428 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 01:06:04,429 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1195974053] [2019-10-15 01:06:04,430 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:06:04,430 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-15 01:06:04,431 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [962466587] [2019-10-15 01:06:04,435 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-15 01:06:04,437 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:06:04,452 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-15 01:06:04,454 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 01:06:04,457 INFO L87 Difference]: Start difference. First operand 28 states. Second operand 2 states. [2019-10-15 01:06:04,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:06:04,487 INFO L93 Difference]: Finished difference Result 44 states and 51 transitions. [2019-10-15 01:06:04,487 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-15 01:06:04,488 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2019-10-15 01:06:04,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:06:04,498 INFO L225 Difference]: With dead ends: 44 [2019-10-15 01:06:04,498 INFO L226 Difference]: Without dead ends: 21 [2019-10-15 01:06:04,506 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 [2019-10-15 01:06:04,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2019-10-15 01:06:04,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2019-10-15 01:06:04,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2019-10-15 01:06:04,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 23 transitions. [2019-10-15 01:06:04,568 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 23 transitions. Word has length 18 [2019-10-15 01:06:04,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:06:04,569 INFO L462 AbstractCegarLoop]: Abstraction has 21 states and 23 transitions. [2019-10-15 01:06:04,569 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-15 01:06:04,570 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 23 transitions. [2019-10-15 01:06:04,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-10-15 01:06:04,572 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:06:04,572 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] [2019-10-15 01:06:04,572 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:06:04,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:06:04,574 INFO L82 PathProgramCache]: Analyzing trace with hash 916881159, now seen corresponding path program 1 times [2019-10-15 01:06:04,574 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:06:04,575 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1521503679] [2019-10-15 01:06:04,575 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:06:04,575 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:06:04,576 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:06:04,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:06:04,821 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 01:06:04,821 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1521503679] [2019-10-15 01:06:04,822 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:06:04,822 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-15 01:06:04,822 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1952024646] [2019-10-15 01:06:04,824 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-15 01:06:04,824 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:06:04,825 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-15 01:06:04,825 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-15 01:06:04,825 INFO L87 Difference]: Start difference. First operand 21 states and 23 transitions. Second operand 6 states. [2019-10-15 01:06:04,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:06:04,875 INFO L93 Difference]: Finished difference Result 29 states and 30 transitions. [2019-10-15 01:06:04,875 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-15 01:06:04,875 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 20 [2019-10-15 01:06:04,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:06:04,877 INFO L225 Difference]: With dead ends: 29 [2019-10-15 01:06:04,877 INFO L226 Difference]: Without dead ends: 21 [2019-10-15 01:06:04,878 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-10-15 01:06:04,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2019-10-15 01:06:04,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2019-10-15 01:06:04,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2019-10-15 01:06:04,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 22 transitions. [2019-10-15 01:06:04,888 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 22 transitions. Word has length 20 [2019-10-15 01:06:04,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:06:04,889 INFO L462 AbstractCegarLoop]: Abstraction has 21 states and 22 transitions. [2019-10-15 01:06:04,889 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-15 01:06:04,890 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 22 transitions. [2019-10-15 01:06:04,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-10-15 01:06:04,891 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:06:04,891 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] [2019-10-15 01:06:04,892 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:06:04,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:06:04,892 INFO L82 PathProgramCache]: Analyzing trace with hash -1635275802, now seen corresponding path program 1 times [2019-10-15 01:06:04,893 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:06:04,893 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [672211223] [2019-10-15 01:06:04,893 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:06:04,893 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:06:04,894 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:06:04,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:06:05,045 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 01:06:05,046 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [672211223] [2019-10-15 01:06:05,046 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:06:05,046 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-15 01:06:05,047 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1299698515] [2019-10-15 01:06:05,047 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-15 01:06:05,048 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:06:05,048 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-15 01:06:05,048 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-15 01:06:05,049 INFO L87 Difference]: Start difference. First operand 21 states and 22 transitions. Second operand 5 states. [2019-10-15 01:06:05,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:06:05,114 INFO L93 Difference]: Finished difference Result 33 states and 35 transitions. [2019-10-15 01:06:05,115 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-15 01:06:05,115 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 20 [2019-10-15 01:06:05,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:06:05,116 INFO L225 Difference]: With dead ends: 33 [2019-10-15 01:06:05,116 INFO L226 Difference]: Without dead ends: 24 [2019-10-15 01:06:05,117 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-10-15 01:06:05,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2019-10-15 01:06:05,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2019-10-15 01:06:05,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2019-10-15 01:06:05,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 26 transitions. [2019-10-15 01:06:05,123 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 26 transitions. Word has length 20 [2019-10-15 01:06:05,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:06:05,124 INFO L462 AbstractCegarLoop]: Abstraction has 24 states and 26 transitions. [2019-10-15 01:06:05,124 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-15 01:06:05,124 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 26 transitions. [2019-10-15 01:06:05,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2019-10-15 01:06:05,125 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:06:05,125 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:06:05,125 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:06:05,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:06:05,126 INFO L82 PathProgramCache]: Analyzing trace with hash 636491705, now seen corresponding path program 1 times [2019-10-15 01:06:05,126 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:06:05,126 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1971977963] [2019-10-15 01:06:05,126 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:06:05,127 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:06:05,127 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:06:05,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:06:05,291 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 01:06:05,293 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1971977963] [2019-10-15 01:06:05,293 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [77049726] [2019-10-15 01:06:05,293 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 [2019-10-15 01:06:05,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:06:05,364 INFO L256 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 6 conjunts are in the unsatisfiable core [2019-10-15 01:06:05,370 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 01:06:05,441 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 01:06:05,441 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 01:06:05,572 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 01:06:05,573 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleAbstractInterpretation [473449139] [2019-10-15 01:06:05,579 INFO L211 CegarAbsIntRunner]: Running AI on error trace of length 24 [2019-10-15 01:06:05,638 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-10-15 01:06:05,638 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-10-15 01:06:05,731 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2019-10-15 01:06:05,740 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-10-15 01:06:05,742 INFO L272 AbstractInterpreter]: Visited 7 different actions 7 times. Never merged. Never widened. Performed 23 root evaluator evaluations with a maximum evaluation depth of 9. Performed 23 inverse root evaluator evaluations with a maximum inverse evaluation depth of 9. Never found a fixpoint. Largest state had 22 variables. [2019-10-15 01:06:05,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:06:05,747 INFO L536 sIntCurrentIteration]: Generating AbsInt predicates [2019-10-15 01:06:05,792 INFO L227 lantSequenceWeakener]: Weakened 5 states. On average, predicates are now at 77.5% of their original sizes. [2019-10-15 01:06:05,793 INFO L551 sIntCurrentIteration]: Unifying AI predicates [2019-10-15 01:06:05,803 INFO L553 sIntCurrentIteration]: We unified 22 AI predicates to 22 [2019-10-15 01:06:05,803 INFO L562 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-10-15 01:06:05,804 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 3 imperfect interpolant sequences. [2019-10-15 01:06:05,804 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6, 5, 6] total 12 [2019-10-15 01:06:05,805 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1810600143] [2019-10-15 01:06:05,805 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-15 01:06:05,806 INFO L137 tionRefinementEngine]: Using predicate unifier AbsIntPredicateUnifier provided by strategy TAIPAN [2019-10-15 01:06:05,806 INFO L124 tionRefinementEngine]: Using hoare triple checker CachingHoareTripleCheckerMap provided by strategy [2019-10-15 01:06:05,806 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-15 01:06:05,807 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-15 01:06:05,807 INFO L87 Difference]: Start difference. First operand 24 states and 26 transitions. Second operand 4 states. [2019-10-15 01:06:05,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:06:05,822 INFO L93 Difference]: Finished difference Result 24 states and 26 transitions. [2019-10-15 01:06:05,822 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-15 01:06:05,822 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 23 [2019-10-15 01:06:05,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:06:05,823 INFO L225 Difference]: With dead ends: 24 [2019-10-15 01:06:05,823 INFO L226 Difference]: Without dead ends: 0 [2019-10-15 01:06:05,825 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 [2019-10-15 01:06:05,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-15 01:06:05,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-15 01:06:05,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-15 01:06:05,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-15 01:06:05,826 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 23 [2019-10-15 01:06:05,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:06:05,826 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-15 01:06:05,827 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-15 01:06:05,827 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-15 01:06:05,827 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-15 01:06:06,037 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:06:06,043 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-15 01:06:06,101 INFO L446 ceAbstractionStarter]: At program point linear_searchENTRY(lines 13 20) the Hoare annotation is: true [2019-10-15 01:06:06,102 INFO L443 ceAbstractionStarter]: For program point L15-1(line 15) no Hoare annotation was computed. [2019-10-15 01:06:06,102 INFO L443 ceAbstractionStarter]: For program point linear_searchEXIT(lines 13 20) no Hoare annotation was computed. [2019-10-15 01:06:06,102 INFO L443 ceAbstractionStarter]: For program point L15-3(lines 15 17) no Hoare annotation was computed. [2019-10-15 01:06:06,102 INFO L446 ceAbstractionStarter]: At program point L15-5(lines 15 17) the Hoare annotation is: true [2019-10-15 01:06:06,102 INFO L443 ceAbstractionStarter]: For program point L15-6(lines 13 20) no Hoare annotation was computed. [2019-10-15 01:06:06,102 INFO L443 ceAbstractionStarter]: For program point linear_searchFINAL(lines 13 20) no Hoare annotation was computed. [2019-10-15 01:06:06,103 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2019-10-15 01:06:06,103 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2019-10-15 01:06:06,103 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-10-15 01:06:06,103 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-15 01:06:06,103 INFO L439 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (and (= ~MAX~0 100000) (<= ~SIZE~0 (* 4294967296 (div ~SIZE~0 4294967296)))) [2019-10-15 01:06:06,103 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-10-15 01:06:06,103 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-15 01:06:06,104 INFO L439 ceAbstractionStarter]: At program point mainENTRY(lines 21 29) the Hoare annotation is: (or (not (<= |old(~SIZE~0)| (* 4294967296 (div |old(~SIZE~0)| 4294967296)))) (<= ~SIZE~0 (* 4294967296 (div ~SIZE~0 4294967296))) (not (= 100000 ~MAX~0))) [2019-10-15 01:06:06,104 INFO L439 ceAbstractionStarter]: At program point L27(line 27) the Hoare annotation is: (or (not (<= |old(~SIZE~0)| (* 4294967296 (div |old(~SIZE~0)| 4294967296)))) (not (= 100000 ~MAX~0))) [2019-10-15 01:06:06,104 INFO L443 ceAbstractionStarter]: For program point L27-1(line 27) no Hoare annotation was computed. [2019-10-15 01:06:06,105 INFO L439 ceAbstractionStarter]: At program point L27-2(line 27) the Hoare annotation is: (or (not (<= |old(~SIZE~0)| (* 4294967296 (div |old(~SIZE~0)| 4294967296)))) (not (= 100000 ~MAX~0)) (= 1 |main_#t~ret5|)) [2019-10-15 01:06:06,105 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 21 29) no Hoare annotation was computed. [2019-10-15 01:06:06,105 INFO L443 ceAbstractionStarter]: For program point L24(lines 24 28) no Hoare annotation was computed. [2019-10-15 01:06:06,105 INFO L443 ceAbstractionStarter]: For program point L27-3(line 27) no Hoare annotation was computed. [2019-10-15 01:06:06,106 INFO L443 ceAbstractionStarter]: For program point L24-2(lines 21 29) no Hoare annotation was computed. [2019-10-15 01:06:06,106 INFO L446 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(lines 4 9) the Hoare annotation is: true [2019-10-15 01:06:06,106 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(lines 4 9) no Hoare annotation was computed. [2019-10-15 01:06:06,106 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 6) no Hoare annotation was computed. [2019-10-15 01:06:06,106 INFO L443 ceAbstractionStarter]: For program point L6(line 6) no Hoare annotation was computed. [2019-10-15 01:06:06,106 INFO L443 ceAbstractionStarter]: For program point L5(lines 5 7) no Hoare annotation was computed. [2019-10-15 01:06:06,107 INFO L443 ceAbstractionStarter]: For program point L5-2(lines 4 9) no Hoare annotation was computed. [2019-10-15 01:06:06,117 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 01:06:06 BoogieIcfgContainer [2019-10-15 01:06:06,117 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-15 01:06:06,121 INFO L168 Benchmark]: Toolchain (without parser) took 2668.03 ms. Allocated memory was 138.9 MB in the beginning and 234.9 MB in the end (delta: 95.9 MB). Free memory was 102.2 MB in the beginning and 168.4 MB in the end (delta: -66.2 MB). Peak memory consumption was 29.7 MB. Max. memory is 7.1 GB. [2019-10-15 01:06:06,124 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 138.9 MB. Free memory was 120.9 MB in the beginning and 120.7 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2019-10-15 01:06:06,125 INFO L168 Benchmark]: CACSL2BoogieTranslator took 266.04 ms. Allocated memory is still 138.9 MB. Free memory was 101.8 MB in the beginning and 91.9 MB in the end (delta: 9.9 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. [2019-10-15 01:06:06,127 INFO L168 Benchmark]: Boogie Preprocessor took 116.87 ms. Allocated memory was 138.9 MB in the beginning and 201.9 MB in the end (delta: 62.9 MB). Free memory was 91.9 MB in the beginning and 179.6 MB in the end (delta: -87.7 MB). Peak memory consumption was 13.6 MB. Max. memory is 7.1 GB. [2019-10-15 01:06:06,133 INFO L168 Benchmark]: RCFGBuilder took 309.90 ms. Allocated memory is still 201.9 MB. Free memory was 179.6 MB in the beginning and 164.0 MB in the end (delta: 15.6 MB). Peak memory consumption was 15.6 MB. Max. memory is 7.1 GB. [2019-10-15 01:06:06,134 INFO L168 Benchmark]: TraceAbstraction took 1968.48 ms. Allocated memory was 201.9 MB in the beginning and 234.9 MB in the end (delta: 33.0 MB). Free memory was 164.0 MB in the beginning and 168.4 MB in the end (delta: -4.4 MB). Peak memory consumption was 28.6 MB. Max. memory is 7.1 GB. [2019-10-15 01:06:06,146 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 138.9 MB. Free memory was 120.9 MB in the beginning and 120.7 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 266.04 ms. Allocated memory is still 138.9 MB. Free memory was 101.8 MB in the beginning and 91.9 MB in the end (delta: 9.9 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 116.87 ms. Allocated memory was 138.9 MB in the beginning and 201.9 MB in the end (delta: 62.9 MB). Free memory was 91.9 MB in the beginning and 179.6 MB in the end (delta: -87.7 MB). Peak memory consumption was 13.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 309.90 ms. Allocated memory is still 201.9 MB. Free memory was 179.6 MB in the beginning and 164.0 MB in the end (delta: 15.6 MB). Peak memory consumption was 15.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1968.48 ms. Allocated memory was 201.9 MB in the beginning and 234.9 MB in the end (delta: 33.0 MB). Free memory was 164.0 MB in the beginning and 168.4 MB in the end (delta: -4.4 MB). Peak memory consumption was 28.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 6]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 15]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 28 locations, 1 error locations. Result: SAFE, OverallTime: 1.8s, OverallIterations: 4, TraceHistogramMax: 2, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 76 SDtfs, 25 SDslu, 110 SDs, 0 SdLazy, 35 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 38 GetRequests, 26 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=28occurred 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, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 12 PreInvPairs, 13 NumberOfFragments, 65 HoareAnnotationTreeSize, 12 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 9 FomulaSimplificationsInter, 4 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 104 NumberOfCodeBlocks, 104 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 121 ConstructedInterpolants, 0 QuantifiedInterpolants, 10087 SizeOfPredicates, 2 NumberOfNonLiveVariables, 111 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 6 InterpolantComputations, 3 PerfectInterpolantSequences, 0/9 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: TIME[ms]: 168, ITERATIONS: 1, WAS_STRONG: 1, WEAKENING_RATIO: 0.9715909090909091, AVG_VARS_REMOVED_DURING_WEAKENING: 1.3181818181818181, 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...