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/volatile_alias.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 21:02:45,155 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 21:02:45,158 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 21:02:45,176 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 21:02:45,176 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 21:02:45,178 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 21:02:45,180 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 21:02:45,190 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 21:02:45,192 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 21:02:45,193 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 21:02:45,194 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 21:02:45,197 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 21:02:45,197 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 21:02:45,199 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 21:02:45,200 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 21:02:45,202 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 21:02:45,204 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 21:02:45,206 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 21:02:45,208 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 21:02:45,213 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 21:02:45,215 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 21:02:45,218 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 21:02:45,221 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 21:02:45,222 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 21:02:45,226 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 21:02:45,226 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 21:02:45,226 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 21:02:45,228 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 21:02:45,230 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 21:02:45,232 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 21:02:45,232 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 21:02:45,233 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 21:02:45,234 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 21:02:45,234 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 21:02:45,239 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 21:02:45,239 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 21:02:45,240 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 21:02:45,240 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 21:02:45,241 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 21:02:45,241 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 21:02:45,243 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 21:02:45,244 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-13 21:02:45,263 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 21:02:45,264 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 21:02:45,265 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 21:02:45,265 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 21:02:45,265 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 21:02:45,265 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 21:02:45,266 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 21:02:45,266 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 21:02:45,266 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 21:02:45,266 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 21:02:45,267 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 21:02:45,267 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 21:02:45,267 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 21:02:45,267 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 21:02:45,267 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 21:02:45,268 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 21:02:45,268 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 21:02:45,268 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 21:02:45,268 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 21:02:45,269 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 21:02:45,269 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 21:02:45,269 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 21:02:45,269 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 21:02:45,269 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 21:02:45,270 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 21:02:45,270 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 21:02:45,270 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 21:02:45,270 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 21:02:45,270 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: Abstract domain -> IntervalDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Abstract interpretation Mode -> USE_PREDICATES [2019-10-13 21:02:45,564 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 21:02:45,584 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 21:02:45,588 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 21:02:45,590 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 21:02:45,591 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 21:02:45,592 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/volatile_alias.i [2019-10-13 21:02:45,667 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/75f245da4/2c1a7ee8876e47fca124785abc2ec569/FLAGbb8e29c09 [2019-10-13 21:02:46,125 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 21:02:46,126 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/volatile_alias.i [2019-10-13 21:02:46,133 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/75f245da4/2c1a7ee8876e47fca124785abc2ec569/FLAGbb8e29c09 [2019-10-13 21:02:46,538 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/75f245da4/2c1a7ee8876e47fca124785abc2ec569 [2019-10-13 21:02:46,548 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 21:02:46,550 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 21:02:46,551 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 21:02:46,551 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 21:02:46,554 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 21:02:46,555 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:02:46" (1/1) ... [2019-10-13 21:02:46,558 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a029f66 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:02:46, skipping insertion in model container [2019-10-13 21:02:46,558 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:02:46" (1/1) ... [2019-10-13 21:02:46,566 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 21:02:46,583 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 21:02:46,751 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 21:02:46,763 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 21:02:46,779 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 21:02:46,795 INFO L192 MainTranslator]: Completed translation [2019-10-13 21:02:46,795 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:02:46 WrapperNode [2019-10-13 21:02:46,795 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 21:02:46,796 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 21:02:46,796 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 21:02:46,796 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 21:02:46,896 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:02:46" (1/1) ... [2019-10-13 21:02:46,896 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:02:46" (1/1) ... [2019-10-13 21:02:46,904 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:02:46" (1/1) ... [2019-10-13 21:02:46,905 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:02:46" (1/1) ... [2019-10-13 21:02:46,910 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:02:46" (1/1) ... [2019-10-13 21:02:46,912 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:02:46" (1/1) ... [2019-10-13 21:02:46,913 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:02:46" (1/1) ... [2019-10-13 21:02:46,915 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 21:02:46,915 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 21:02:46,916 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 21:02:46,916 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 21:02:46,917 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:02:46" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 21:02:46,973 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 21:02:46,974 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 21:02:46,974 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 21:02:46,974 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 21:02:46,974 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 21:02:46,974 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 21:02:46,974 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 21:02:46,975 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 21:02:46,975 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 21:02:46,975 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 21:02:46,975 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 21:02:46,975 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 21:02:47,148 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 21:02:47,148 INFO L284 CfgBuilder]: Removed 0 assume(true) statements. [2019-10-13 21:02:47,150 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:02:47 BoogieIcfgContainer [2019-10-13 21:02:47,150 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 21:02:47,151 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 21:02:47,151 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 21:02:47,154 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 21:02:47,154 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 09:02:46" (1/3) ... [2019-10-13 21:02:47,154 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74dd07e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:02:47, skipping insertion in model container [2019-10-13 21:02:47,155 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:02:46" (2/3) ... [2019-10-13 21:02:47,155 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74dd07e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:02:47, skipping insertion in model container [2019-10-13 21:02:47,155 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:02:47" (3/3) ... [2019-10-13 21:02:47,157 INFO L109 eAbstractionObserver]: Analyzing ICFG volatile_alias.i [2019-10-13 21:02:47,164 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 21:02:47,170 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 21:02:47,182 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 21:02:47,205 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 21:02:47,206 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 21:02:47,206 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 21:02:47,206 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 21:02:47,206 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 21:02:47,206 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 21:02:47,206 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 21:02:47,207 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 21:02:47,220 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states. [2019-10-13 21:02:47,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-10-13 21:02:47,226 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:02:47,226 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:02:47,228 INFO L410 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:02:47,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:02:47,233 INFO L82 PathProgramCache]: Analyzing trace with hash 2096341077, now seen corresponding path program 1 times [2019-10-13 21:02:47,240 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:02:47,241 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [426590934] [2019-10-13 21:02:47,241 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:02:47,241 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:02:47,241 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:02:47,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:02:47,399 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 21:02:47,400 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [426590934] [2019-10-13 21:02:47,400 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:02:47,401 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 21:02:47,401 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2089780390] [2019-10-13 21:02:47,406 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 21:02:47,407 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:02:47,423 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 21:02:47,424 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:02:47,426 INFO L87 Difference]: Start difference. First operand 14 states. Second operand 3 states. [2019-10-13 21:02:47,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:02:47,460 INFO L93 Difference]: Finished difference Result 19 states and 18 transitions. [2019-10-13 21:02:47,460 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 21:02:47,462 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2019-10-13 21:02:47,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:02:47,472 INFO L225 Difference]: With dead ends: 19 [2019-10-13 21:02:47,472 INFO L226 Difference]: Without dead ends: 0 [2019-10-13 21:02:47,479 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:02:47,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-13 21:02:47,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-13 21:02:47,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-13 21:02:47,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-13 21:02:47,512 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 8 [2019-10-13 21:02:47,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:02:47,514 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-13 21:02:47,514 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 21:02:47,515 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-13 21:02:47,516 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-13 21:02:47,522 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-13 21:02:47,581 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2019-10-13 21:02:47,582 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2019-10-13 21:02:47,582 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-10-13 21:02:47,582 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-13 21:02:47,582 INFO L446 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2019-10-13 21:02:47,582 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-10-13 21:02:47,583 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-13 21:02:47,583 INFO L446 ceAbstractionStarter]: At program point mainENTRY(lines 6 16) the Hoare annotation is: true [2019-10-13 21:02:47,583 INFO L443 ceAbstractionStarter]: For program point L13(line 13) no Hoare annotation was computed. [2019-10-13 21:02:47,583 INFO L443 ceAbstractionStarter]: For program point mainFINAL(lines 6 16) no Hoare annotation was computed. [2019-10-13 21:02:47,584 INFO L443 ceAbstractionStarter]: For program point L12(lines 12 14) no Hoare annotation was computed. [2019-10-13 21:02:47,584 INFO L443 ceAbstractionStarter]: For program point L12-2(lines 12 14) no Hoare annotation was computed. [2019-10-13 21:02:47,584 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 6 16) no Hoare annotation was computed. [2019-10-13 21:02:47,584 INFO L443 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 13) no Hoare annotation was computed. [2019-10-13 21:02:47,589 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 09:02:47 BoogieIcfgContainer [2019-10-13 21:02:47,589 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-13 21:02:47,597 INFO L168 Benchmark]: Toolchain (without parser) took 1041.68 ms. Allocated memory was 145.2 MB in the beginning and 202.4 MB in the end (delta: 57.1 MB). Free memory was 103.7 MB in the beginning and 147.5 MB in the end (delta: -43.8 MB). Peak memory consumption was 13.4 MB. Max. memory is 7.1 GB. [2019-10-13 21:02:47,598 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 145.2 MB. Free memory was 121.6 MB in the beginning and 121.4 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-10-13 21:02:47,603 INFO L168 Benchmark]: CACSL2BoogieTranslator took 245.05 ms. Allocated memory is still 145.2 MB. Free memory was 103.5 MB in the beginning and 93.6 MB in the end (delta: 9.9 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. [2019-10-13 21:02:47,605 INFO L168 Benchmark]: Boogie Preprocessor took 119.21 ms. Allocated memory was 145.2 MB in the beginning and 202.4 MB in the end (delta: 57.1 MB). Free memory was 93.6 MB in the beginning and 181.0 MB in the end (delta: -87.4 MB). Peak memory consumption was 10.1 MB. Max. memory is 7.1 GB. [2019-10-13 21:02:47,611 INFO L168 Benchmark]: RCFGBuilder took 234.55 ms. Allocated memory is still 202.4 MB. Free memory was 181.0 MB in the beginning and 169.0 MB in the end (delta: 12.0 MB). Peak memory consumption was 12.0 MB. Max. memory is 7.1 GB. [2019-10-13 21:02:47,612 INFO L168 Benchmark]: TraceAbstraction took 438.30 ms. Allocated memory is still 202.4 MB. Free memory was 168.3 MB in the beginning and 147.5 MB in the end (delta: 20.8 MB). Peak memory consumption was 20.8 MB. Max. memory is 7.1 GB. [2019-10-13 21:02:47,626 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 145.2 MB. Free memory was 121.6 MB in the beginning and 121.4 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 245.05 ms. Allocated memory is still 145.2 MB. Free memory was 103.5 MB in the beginning and 93.6 MB in the end (delta: 9.9 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 119.21 ms. Allocated memory was 145.2 MB in the beginning and 202.4 MB in the end (delta: 57.1 MB). Free memory was 93.6 MB in the beginning and 181.0 MB in the end (delta: -87.4 MB). Peak memory consumption was 10.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 234.55 ms. Allocated memory is still 202.4 MB. Free memory was 181.0 MB in the beginning and 169.0 MB in the end (delta: 12.0 MB). Peak memory consumption was 12.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 438.30 ms. Allocated memory is still 202.4 MB. Free memory was 168.3 MB in the beginning and 147.5 MB in the end (delta: 20.8 MB). Peak memory consumption was 20.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 13]: 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 - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 14 locations, 1 error locations. Result: SAFE, OverallTime: 0.3s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 10 SDtfs, 0 SDslu, 9 SDs, 0 SdLazy, 2 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=14occurred 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, 4 LocationsWithAnnotation, 4 PreInvPairs, 4 NumberOfFragments, 4 HoareAnnotationTreeSize, 4 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 8 NumberOfCodeBlocks, 8 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 63 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...