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/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf -i ../../../trunk/examples/svcomp/ldv-regression/volatile_alias.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fea9116 [2019-09-20 13:28:49,120 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-20 13:28:49,122 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-20 13:28:49,134 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-20 13:28:49,134 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-20 13:28:49,135 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-20 13:28:49,137 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-20 13:28:49,139 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-20 13:28:49,140 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-20 13:28:49,141 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-20 13:28:49,142 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-20 13:28:49,144 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-20 13:28:49,144 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-20 13:28:49,145 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-20 13:28:49,146 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-20 13:28:49,147 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-20 13:28:49,148 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-20 13:28:49,149 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-20 13:28:49,151 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-20 13:28:49,153 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-20 13:28:49,155 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-20 13:28:49,156 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-20 13:28:49,157 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-20 13:28:49,158 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-20 13:28:49,161 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-09-20 13:28:49,164 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-20 13:28:49,165 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-20 13:28:49,166 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-20 13:28:49,167 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-20 13:28:49,168 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-20 13:28:49,168 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-20 13:28:49,169 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-20 13:28:49,169 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-20 13:28:49,169 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-20 13:28:49,170 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-20 13:28:49,171 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-20 13:28:49,172 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf [2019-09-20 13:28:49,187 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-20 13:28:49,187 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-20 13:28:49,188 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-20 13:28:49,188 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-20 13:28:49,189 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-20 13:28:49,189 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-20 13:28:49,189 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-20 13:28:49,189 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-20 13:28:49,189 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-20 13:28:49,190 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-20 13:28:49,190 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-20 13:28:49,191 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-20 13:28:49,191 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-20 13:28:49,191 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-20 13:28:49,191 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-20 13:28:49,191 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-20 13:28:49,192 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-20 13:28:49,192 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-20 13:28:49,192 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-20 13:28:49,192 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-20 13:28:49,192 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-20 13:28:49,193 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-20 13:28:49,193 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-20 13:28:49,193 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-20 13:28:49,193 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-20 13:28:49,194 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-20 13:28:49,194 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-20 13:28:49,194 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-20 13:28:49,194 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-20 13:28:49,194 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-20 13:28:49,236 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-20 13:28:49,250 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-20 13:28:49,254 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-20 13:28:49,255 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-20 13:28:49,255 INFO L275 PluginConnector]: CDTParser initialized [2019-09-20 13:28:49,256 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/volatile_alias.i [2019-09-20 13:28:49,317 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a485250e2/d136eaf3ce694948bfb68feddb6d741a/FLAG9d334e25f [2019-09-20 13:28:49,748 INFO L306 CDTParser]: Found 1 translation units. [2019-09-20 13:28:49,749 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/volatile_alias.i [2019-09-20 13:28:49,756 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a485250e2/d136eaf3ce694948bfb68feddb6d741a/FLAG9d334e25f [2019-09-20 13:28:50,166 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a485250e2/d136eaf3ce694948bfb68feddb6d741a [2019-09-20 13:28:50,176 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-20 13:28:50,178 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-20 13:28:50,179 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-20 13:28:50,179 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-20 13:28:50,182 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-20 13:28:50,183 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:28:50" (1/1) ... [2019-09-20 13:28:50,186 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@78f7f23f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:28:50, skipping insertion in model container [2019-09-20 13:28:50,186 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:28:50" (1/1) ... [2019-09-20 13:28:50,193 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-20 13:28:50,210 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-20 13:28:50,404 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:28:50,415 INFO L188 MainTranslator]: Completed pre-run [2019-09-20 13:28:50,427 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:28:50,441 INFO L192 MainTranslator]: Completed translation [2019-09-20 13:28:50,442 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:28:50 WrapperNode [2019-09-20 13:28:50,442 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-20 13:28:50,443 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-20 13:28:50,443 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-20 13:28:50,443 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-20 13:28:50,540 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:28:50" (1/1) ... [2019-09-20 13:28:50,540 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:28:50" (1/1) ... [2019-09-20 13:28:50,548 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:28:50" (1/1) ... [2019-09-20 13:28:50,548 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:28:50" (1/1) ... [2019-09-20 13:28:50,556 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:28:50" (1/1) ... [2019-09-20 13:28:50,558 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:28:50" (1/1) ... [2019-09-20 13:28:50,559 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:28:50" (1/1) ... [2019-09-20 13:28:50,567 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-20 13:28:50,567 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-20 13:28:50,568 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-20 13:28:50,568 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-20 13:28:50,569 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:28:50" (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 [2019-09-20 13:28:50,634 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-20 13:28:50,634 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-20 13:28:50,634 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-20 13:28:50,635 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-20 13:28:50,635 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-20 13:28:50,635 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-20 13:28:50,635 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-20 13:28:50,635 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-20 13:28:50,636 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-20 13:28:50,636 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-20 13:28:50,636 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-20 13:28:50,636 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-20 13:28:50,824 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-20 13:28:50,825 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-09-20 13:28:50,826 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:28:50 BoogieIcfgContainer [2019-09-20 13:28:50,827 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-20 13:28:50,828 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-20 13:28:50,828 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-20 13:28:50,832 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-20 13:28:50,832 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 01:28:50" (1/3) ... [2019-09-20 13:28:50,833 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b2dd983 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:28:50, skipping insertion in model container [2019-09-20 13:28:50,833 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:28:50" (2/3) ... [2019-09-20 13:28:50,833 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b2dd983 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:28:50, skipping insertion in model container [2019-09-20 13:28:50,834 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:28:50" (3/3) ... [2019-09-20 13:28:50,835 INFO L109 eAbstractionObserver]: Analyzing ICFG volatile_alias.i [2019-09-20 13:28:50,849 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-20 13:28:50,866 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-20 13:28:50,895 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-20 13:28:50,952 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-20 13:28:50,952 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-20 13:28:50,952 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-20 13:28:50,952 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-20 13:28:50,953 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-20 13:28:50,953 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-20 13:28:50,953 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-20 13:28:50,953 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-20 13:28:50,975 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states. [2019-09-20 13:28:50,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-09-20 13:28:50,990 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:28:50,991 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:28:50,993 INFO L418 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:28:51,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:28:51,001 INFO L82 PathProgramCache]: Analyzing trace with hash 2096341077, now seen corresponding path program 1 times [2019-09-20 13:28:51,003 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:28:51,048 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:28:51,049 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:28:51,049 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:28:51,049 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:28:51,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:28:51,165 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:28:51,167 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:28:51,168 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-20 13:28:51,168 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:28:51,172 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-20 13:28:51,188 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-20 13:28:51,189 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:28:51,192 INFO L87 Difference]: Start difference. First operand 14 states. Second operand 3 states. [2019-09-20 13:28:51,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:28:51,211 INFO L93 Difference]: Finished difference Result 12 states and 11 transitions. [2019-09-20 13:28:51,212 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-20 13:28:51,214 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2019-09-20 13:28:51,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:28:51,222 INFO L225 Difference]: With dead ends: 12 [2019-09-20 13:28:51,222 INFO L226 Difference]: Without dead ends: 0 [2019-09-20 13:28:51,224 INFO L636 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 [2019-09-20 13:28:51,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-20 13:28:51,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-20 13:28:51,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-20 13:28:51,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-20 13:28:51,252 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 8 [2019-09-20 13:28:51,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:28:51,253 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-20 13:28:51,253 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-20 13:28:51,253 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-20 13:28:51,253 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-20 13:28:51,259 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 01:28:51 BoogieIcfgContainer [2019-09-20 13:28:51,259 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-20 13:28:51,263 INFO L168 Benchmark]: Toolchain (without parser) took 1083.74 ms. Allocated memory was 130.5 MB in the beginning and 198.2 MB in the end (delta: 67.6 MB). Free memory was 85.7 MB in the beginning and 142.7 MB in the end (delta: -56.9 MB). Peak memory consumption was 10.7 MB. Max. memory is 7.1 GB. [2019-09-20 13:28:51,264 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 130.5 MB. Free memory was 103.4 MB in the beginning and 103.2 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-20 13:28:51,265 INFO L168 Benchmark]: CACSL2BoogieTranslator took 263.72 ms. Allocated memory is still 130.5 MB. Free memory was 85.5 MB in the beginning and 75.6 MB in the end (delta: 9.9 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. [2019-09-20 13:28:51,266 INFO L168 Benchmark]: Boogie Preprocessor took 124.59 ms. Allocated memory was 130.5 MB in the beginning and 198.2 MB in the end (delta: 67.6 MB). Free memory was 75.6 MB in the beginning and 174.5 MB in the end (delta: -98.9 MB). Peak memory consumption was 16.2 MB. Max. memory is 7.1 GB. [2019-09-20 13:28:51,267 INFO L168 Benchmark]: RCFGBuilder took 259.47 ms. Allocated memory is still 198.2 MB. Free memory was 174.5 MB in the beginning and 162.4 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 7.1 GB. [2019-09-20 13:28:51,268 INFO L168 Benchmark]: TraceAbstraction took 431.17 ms. Allocated memory is still 198.2 MB. Free memory was 161.8 MB in the beginning and 142.7 MB in the end (delta: 19.1 MB). Peak memory consumption was 19.1 MB. Max. memory is 7.1 GB. [2019-09-20 13:28:51,272 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 130.5 MB. Free memory was 103.4 MB in the beginning and 103.2 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 263.72 ms. Allocated memory is still 130.5 MB. Free memory was 85.5 MB in the beginning and 75.6 MB in the end (delta: 9.9 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 124.59 ms. Allocated memory was 130.5 MB in the beginning and 198.2 MB in the end (delta: 67.6 MB). Free memory was 75.6 MB in the beginning and 174.5 MB in the end (delta: -98.9 MB). Peak memory consumption was 16.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 259.47 ms. Allocated memory is still 198.2 MB. Free memory was 174.5 MB in the beginning and 162.4 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 431.17 ms. Allocated memory is still 198.2 MB. Free memory was 161.8 MB in the beginning and 142.7 MB in the end (delta: 19.1 MB). Peak memory consumption was 19.1 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. SAFE Result, 0.3s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, 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 AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 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, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...