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/ldv-regression/test04.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 01:01:30,073 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 01:01:30,075 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 01:01:30,086 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 01:01:30,087 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 01:01:30,088 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 01:01:30,089 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 01:01:30,091 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 01:01:30,093 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 01:01:30,094 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 01:01:30,095 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 01:01:30,096 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 01:01:30,096 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 01:01:30,097 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 01:01:30,098 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 01:01:30,100 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 01:01:30,101 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 01:01:30,102 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 01:01:30,104 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 01:01:30,106 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 01:01:30,108 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 01:01:30,109 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 01:01:30,110 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 01:01:30,111 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 01:01:30,114 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-10-15 01:01:30,124 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 01:01:30,128 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 01:01:30,129 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 01:01:30,132 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 01:01:30,161 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 01:01:30,161 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 01:01:30,163 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 01:01:30,163 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 01:01:30,164 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 01:01:30,164 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 01:01:30,164 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 01:01:30,164 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 01:01:30,164 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 01:01:30,165 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 01:01:30,166 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 01:01:30,166 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 01:01:30,166 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 01:01:30,167 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 01:01:30,167 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 01:01:30,167 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 01:01:30,168 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 01:01:30,168 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 01:01:30,168 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 01:01:30,168 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 01:01:30,169 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 01:01:30,169 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 01:01:30,169 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 01:01:30,169 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 01:01:30,169 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 01:01:30,170 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 01:01:30,170 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 01:01:30,170 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 01:01:30,170 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 01:01:30,483 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 01:01:30,495 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 01:01:30,501 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 01:01:30,503 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 01:01:30,503 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 01:01:30,504 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/test04.c [2019-10-15 01:01:30,577 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c5d852a13/918045ffb1b04fb3b518d3fa6ac27da7/FLAGd20a0ac72 [2019-10-15 01:01:31,058 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 01:01:31,061 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/test04.c [2019-10-15 01:01:31,067 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c5d852a13/918045ffb1b04fb3b518d3fa6ac27da7/FLAGd20a0ac72 [2019-10-15 01:01:31,490 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c5d852a13/918045ffb1b04fb3b518d3fa6ac27da7 [2019-10-15 01:01:31,501 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 01:01:31,503 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 01:01:31,504 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 01:01:31,504 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 01:01:31,507 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 01:01:31,508 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:01:31" (1/1) ... [2019-10-15 01:01:31,511 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@70dea371 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:01:31, skipping insertion in model container [2019-10-15 01:01:31,512 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:01:31" (1/1) ... [2019-10-15 01:01:31,521 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 01:01:31,538 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 01:01:31,770 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:01:31,791 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 01:01:31,809 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:01:31,826 INFO L192 MainTranslator]: Completed translation [2019-10-15 01:01:31,827 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:01:31 WrapperNode [2019-10-15 01:01:31,827 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 01:01:31,828 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 01:01:31,829 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 01:01:31,829 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 01:01:31,920 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:01:31" (1/1) ... [2019-10-15 01:01:31,921 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:01:31" (1/1) ... [2019-10-15 01:01:31,928 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:01:31" (1/1) ... [2019-10-15 01:01:31,929 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:01:31" (1/1) ... [2019-10-15 01:01:31,936 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:01:31" (1/1) ... [2019-10-15 01:01:31,938 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:01:31" (1/1) ... [2019-10-15 01:01:31,940 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:01:31" (1/1) ... [2019-10-15 01:01:31,947 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 01:01:31,947 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 01:01:31,948 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 01:01:31,948 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 01:01:31,949 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:01:31" (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 01:01:32,007 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 01:01:32,008 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 01:01:32,008 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2019-10-15 01:01:32,008 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 01:01:32,008 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 01:01:32,008 INFO L130 BoogieDeclarations]: Found specification of procedure f [2019-10-15 01:01:32,009 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 01:01:32,009 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-15 01:01:32,009 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-15 01:01:32,009 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-15 01:01:32,009 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-15 01:01:32,009 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 01:01:32,010 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 01:01:32,240 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 01:01:32,240 INFO L284 CfgBuilder]: Removed 0 assume(true) statements. [2019-10-15 01:01:32,242 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:01:32 BoogieIcfgContainer [2019-10-15 01:01:32,243 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 01:01:32,251 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 01:01:32,251 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 01:01:32,257 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 01:01:32,257 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 01:01:31" (1/3) ... [2019-10-15 01:01:32,258 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57a5e190 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:01:32, skipping insertion in model container [2019-10-15 01:01:32,258 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:01:31" (2/3) ... [2019-10-15 01:01:32,259 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57a5e190 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:01:32, skipping insertion in model container [2019-10-15 01:01:32,259 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:01:32" (3/3) ... [2019-10-15 01:01:32,261 INFO L109 eAbstractionObserver]: Analyzing ICFG test04.c [2019-10-15 01:01:32,283 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 01:01:32,295 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 01:01:32,312 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 01:01:32,350 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 01:01:32,350 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 01:01:32,351 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 01:01:32,351 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 01:01:32,351 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 01:01:32,351 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 01:01:32,351 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 01:01:32,351 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 01:01:32,367 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states. [2019-10-15 01:01:32,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-10-15 01:01:32,372 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:01:32,373 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:01:32,375 INFO L410 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:01:32,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:01:32,381 INFO L82 PathProgramCache]: Analyzing trace with hash 1498735640, now seen corresponding path program 1 times [2019-10-15 01:01:32,390 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:01:32,390 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1882915499] [2019-10-15 01:01:32,390 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:01:32,391 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:01:32,391 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:01:32,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:01:32,690 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 01:01:32,691 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1882915499] [2019-10-15 01:01:32,692 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:01:32,693 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-15 01:01:32,693 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1592111215] [2019-10-15 01:01:32,698 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-15 01:01:32,700 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:01:32,716 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-15 01:01:32,717 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-15 01:01:32,719 INFO L87 Difference]: Start difference. First operand 18 states. Second operand 6 states. [2019-10-15 01:01:32,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:01:32,822 INFO L93 Difference]: Finished difference Result 22 states and 21 transitions. [2019-10-15 01:01:32,823 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-15 01:01:32,824 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 13 [2019-10-15 01:01:32,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:01:32,832 INFO L225 Difference]: With dead ends: 22 [2019-10-15 01:01:32,833 INFO L226 Difference]: Without dead ends: 0 [2019-10-15 01:01:32,836 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2019-10-15 01:01:32,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-15 01:01:32,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-15 01:01:32,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-15 01:01:32,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-15 01:01:32,865 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2019-10-15 01:01:32,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:01:32,865 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-15 01:01:32,865 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-15 01:01:32,866 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-15 01:01:32,866 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-15 01:01:32,871 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-15 01:01:32,898 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2019-10-15 01:01:32,899 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2019-10-15 01:01:32,899 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-10-15 01:01:32,899 INFO L443 ceAbstractionStarter]: For program point fEXIT(lines 4 6) no Hoare annotation was computed. [2019-10-15 01:01:32,900 INFO L446 ceAbstractionStarter]: At program point fENTRY(lines 4 6) the Hoare annotation is: true [2019-10-15 01:01:32,900 INFO L443 ceAbstractionStarter]: For program point fFINAL(lines 4 6) no Hoare annotation was computed. [2019-10-15 01:01:32,900 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-15 01:01:32,900 INFO L446 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2019-10-15 01:01:32,900 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-10-15 01:01:32,901 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-15 01:01:32,901 INFO L439 ceAbstractionStarter]: At program point L17(lines 8 24) the Hoare annotation is: false [2019-10-15 01:01:32,901 INFO L443 ceAbstractionStarter]: For program point L16(lines 16 18) no Hoare annotation was computed. [2019-10-15 01:01:32,901 INFO L439 ceAbstractionStarter]: At program point L14(line 14) the Hoare annotation is: (and (= main_~p1~0.base |main_~#a~0.base|) (not (= main_~p1~0.base main_~p2~0.base)) (= main_~p1~0.offset |main_~#a~0.offset|)) [2019-10-15 01:01:32,901 INFO L446 ceAbstractionStarter]: At program point mainENTRY(lines 8 24) the Hoare annotation is: true [2019-10-15 01:01:32,902 INFO L443 ceAbstractionStarter]: For program point L14-1(line 14) no Hoare annotation was computed. [2019-10-15 01:01:32,902 INFO L443 ceAbstractionStarter]: For program point mainFINAL(lines 8 24) no Hoare annotation was computed. [2019-10-15 01:01:32,902 INFO L443 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 22) no Hoare annotation was computed. [2019-10-15 01:01:32,902 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 8 24) no Hoare annotation was computed. [2019-10-15 01:01:32,910 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 01:01:32 BoogieIcfgContainer [2019-10-15 01:01:32,911 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-15 01:01:32,914 INFO L168 Benchmark]: Toolchain (without parser) took 1409.99 ms. Allocated memory was 138.4 MB in the beginning and 199.2 MB in the end (delta: 60.8 MB). Free memory was 103.9 MB in the beginning and 130.2 MB in the end (delta: -26.3 MB). Peak memory consumption was 34.5 MB. Max. memory is 7.1 GB. [2019-10-15 01:01:32,915 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 138.4 MB. Free memory was 121.6 MB in the beginning and 121.4 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2019-10-15 01:01:32,916 INFO L168 Benchmark]: CACSL2BoogieTranslator took 324.38 ms. Allocated memory is still 138.4 MB. Free memory was 103.7 MB in the beginning and 94.1 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.6 MB. Max. memory is 7.1 GB. [2019-10-15 01:01:32,917 INFO L168 Benchmark]: Boogie Preprocessor took 118.58 ms. Allocated memory was 138.4 MB in the beginning and 199.2 MB in the end (delta: 60.8 MB). Free memory was 94.1 MB in the beginning and 177.5 MB in the end (delta: -83.5 MB). Peak memory consumption was 13.9 MB. Max. memory is 7.1 GB. [2019-10-15 01:01:32,918 INFO L168 Benchmark]: RCFGBuilder took 295.35 ms. Allocated memory is still 199.2 MB. Free memory was 177.5 MB in the beginning and 164.4 MB in the end (delta: 13.2 MB). Peak memory consumption was 13.2 MB. Max. memory is 7.1 GB. [2019-10-15 01:01:32,919 INFO L168 Benchmark]: TraceAbstraction took 659.85 ms. Allocated memory is still 199.2 MB. Free memory was 163.7 MB in the beginning and 130.2 MB in the end (delta: 33.5 MB). Peak memory consumption was 33.5 MB. Max. memory is 7.1 GB. [2019-10-15 01:01:32,923 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 138.4 MB. Free memory was 121.6 MB in the beginning and 121.4 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 324.38 ms. Allocated memory is still 138.4 MB. Free memory was 103.7 MB in the beginning and 94.1 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 118.58 ms. Allocated memory was 138.4 MB in the beginning and 199.2 MB in the end (delta: 60.8 MB). Free memory was 94.1 MB in the beginning and 177.5 MB in the end (delta: -83.5 MB). Peak memory consumption was 13.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 295.35 ms. Allocated memory is still 199.2 MB. Free memory was 177.5 MB in the beginning and 164.4 MB in the end (delta: 13.2 MB). Peak memory consumption was 13.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 659.85 ms. Allocated memory is still 199.2 MB. Free memory was 163.7 MB in the beginning and 130.2 MB in the end (delta: 33.5 MB). Peak memory consumption was 33.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 22]: 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: 8]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 18 locations, 1 error locations. Result: SAFE, OverallTime: 0.5s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 12 SDtfs, 0 SDslu, 43 SDs, 0 SdLazy, 13 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=18occurred 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, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 7 PreInvPairs, 7 NumberOfFragments, 17 HoareAnnotationTreeSize, 7 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 13 NumberOfCodeBlocks, 13 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 12 ConstructedInterpolants, 0 QuantifiedInterpolants, 540 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...