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 -i ../../../trunk/examples/svcomp/ldv-regression/test15.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-14 23:08:34,186 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-14 23:08:34,189 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-14 23:08:34,207 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-14 23:08:34,208 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-14 23:08:34,209 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-14 23:08:34,211 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-14 23:08:34,217 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-14 23:08:34,219 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-14 23:08:34,225 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-14 23:08:34,225 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-14 23:08:34,226 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-14 23:08:34,227 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-14 23:08:34,228 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-14 23:08:34,229 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-14 23:08:34,230 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-14 23:08:34,231 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-14 23:08:34,234 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-14 23:08:34,236 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-14 23:08:34,238 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-14 23:08:34,239 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-14 23:08:34,240 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-14 23:08:34,241 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-14 23:08:34,242 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-14 23:08:34,244 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-10-14 23:08:34,251 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-14 23:08:34,252 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-14 23:08:34,253 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-14 23:08:34,253 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-14 23:08:34,267 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-14 23:08:34,268 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-14 23:08:34,269 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-14 23:08:34,269 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-14 23:08:34,270 INFO L138 SettingsManager]: * Use SBE=true [2019-10-14 23:08:34,270 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-14 23:08:34,270 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-14 23:08:34,271 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-14 23:08:34,271 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-14 23:08:34,271 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-14 23:08:34,271 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-14 23:08:34,271 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-14 23:08:34,271 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-14 23:08:34,272 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-14 23:08:34,272 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-14 23:08:34,272 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-14 23:08:34,273 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-14 23:08:34,274 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-14 23:08:34,274 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-14 23:08:34,274 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-14 23:08:34,274 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-14 23:08:34,274 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-14 23:08:34,275 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-14 23:08:34,275 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-14 23:08:34,275 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-14 23:08:34,276 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-14 23:08:34,276 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-14 23:08:34,276 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-14 23:08:34,276 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-14 23:08:34,538 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-14 23:08:34,551 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-14 23:08:34,555 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-14 23:08:34,556 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-14 23:08:34,557 INFO L275 PluginConnector]: CDTParser initialized [2019-10-14 23:08:34,557 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/test15.c [2019-10-14 23:08:34,619 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6e15ffcb1/1d914afce91241c1bb1aa7b6068611cc/FLAGbb305a270 [2019-10-14 23:08:35,105 INFO L306 CDTParser]: Found 1 translation units. [2019-10-14 23:08:35,106 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/test15.c [2019-10-14 23:08:35,112 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6e15ffcb1/1d914afce91241c1bb1aa7b6068611cc/FLAGbb305a270 [2019-10-14 23:08:35,466 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6e15ffcb1/1d914afce91241c1bb1aa7b6068611cc [2019-10-14 23:08:35,475 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-14 23:08:35,476 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-14 23:08:35,477 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-14 23:08:35,477 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-14 23:08:35,482 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-14 23:08:35,483 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 11:08:35" (1/1) ... [2019-10-14 23:08:35,485 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a455ae9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:08:35, skipping insertion in model container [2019-10-14 23:08:35,486 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 11:08:35" (1/1) ... [2019-10-14 23:08:35,492 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-14 23:08:35,507 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-14 23:08:35,681 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-14 23:08:35,696 INFO L188 MainTranslator]: Completed pre-run [2019-10-14 23:08:35,709 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-14 23:08:35,723 INFO L192 MainTranslator]: Completed translation [2019-10-14 23:08:35,724 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:08:35 WrapperNode [2019-10-14 23:08:35,724 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-14 23:08:35,725 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-14 23:08:35,725 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-14 23:08:35,725 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-14 23:08:35,814 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:08:35" (1/1) ... [2019-10-14 23:08:35,816 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:08:35" (1/1) ... [2019-10-14 23:08:35,827 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:08:35" (1/1) ... [2019-10-14 23:08:35,829 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:08:35" (1/1) ... [2019-10-14 23:08:35,837 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:08:35" (1/1) ... [2019-10-14 23:08:35,841 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:08:35" (1/1) ... [2019-10-14 23:08:35,843 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:08:35" (1/1) ... [2019-10-14 23:08:35,849 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-14 23:08:35,849 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-14 23:08:35,849 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-14 23:08:35,849 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-14 23:08:35,850 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:08:35" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-14 23:08:35,908 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-14 23:08:35,908 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-14 23:08:35,908 INFO L138 BoogieDeclarations]: Found implementation of procedure assign [2019-10-14 23:08:35,908 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-14 23:08:35,909 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-14 23:08:35,909 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-14 23:08:35,909 INFO L130 BoogieDeclarations]: Found specification of procedure assign [2019-10-14 23:08:35,909 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-14 23:08:35,909 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-14 23:08:35,909 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-14 23:08:35,910 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-14 23:08:35,910 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-14 23:08:35,910 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-14 23:08:35,910 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-14 23:08:36,105 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-14 23:08:36,105 INFO L284 CfgBuilder]: Removed 0 assume(true) statements. [2019-10-14 23:08:36,107 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:08:36 BoogieIcfgContainer [2019-10-14 23:08:36,107 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-14 23:08:36,108 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-14 23:08:36,108 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-14 23:08:36,113 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-14 23:08:36,113 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 11:08:35" (1/3) ... [2019-10-14 23:08:36,118 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bd73a84 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 11:08:36, skipping insertion in model container [2019-10-14 23:08:36,118 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:08:35" (2/3) ... [2019-10-14 23:08:36,118 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bd73a84 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 11:08:36, skipping insertion in model container [2019-10-14 23:08:36,119 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:08:36" (3/3) ... [2019-10-14 23:08:36,123 INFO L109 eAbstractionObserver]: Analyzing ICFG test15.c [2019-10-14 23:08:36,142 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-14 23:08:36,151 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-14 23:08:36,170 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-14 23:08:36,198 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-14 23:08:36,199 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-14 23:08:36,199 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-14 23:08:36,199 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-14 23:08:36,199 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-14 23:08:36,199 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-14 23:08:36,199 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-14 23:08:36,199 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-14 23:08:36,222 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states. [2019-10-14 23:08:36,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-10-14 23:08:36,229 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:08:36,230 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 23:08:36,233 INFO L410 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:08:36,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:08:36,239 INFO L82 PathProgramCache]: Analyzing trace with hash -1573149608, now seen corresponding path program 1 times [2019-10-14 23:08:36,249 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:08:36,249 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1832122619] [2019-10-14 23:08:36,250 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:08:36,250 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:08:36,250 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:08:36,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:08:36,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:08:36,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:08:36,630 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 23:08:36,631 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1832122619] [2019-10-14 23:08:36,632 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:08:36,632 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-14 23:08:36,633 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1200199095] [2019-10-14 23:08:36,638 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-14 23:08:36,638 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:08:36,649 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-14 23:08:36,650 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-14 23:08:36,652 INFO L87 Difference]: Start difference. First operand 18 states. Second operand 8 states. [2019-10-14 23:08:36,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:08:36,844 INFO L93 Difference]: Finished difference Result 22 states and 21 transitions. [2019-10-14 23:08:36,844 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-14 23:08:36,846 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 13 [2019-10-14 23:08:36,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:08:36,854 INFO L225 Difference]: With dead ends: 22 [2019-10-14 23:08:36,854 INFO L226 Difference]: Without dead ends: 0 [2019-10-14 23:08:36,858 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2019-10-14 23:08:36,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-14 23:08:36,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-14 23:08:36,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-14 23:08:36,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-14 23:08:36,887 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2019-10-14 23:08:36,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:08:36,887 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-14 23:08:36,887 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-14 23:08:36,888 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-14 23:08:36,888 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-14 23:08:36,893 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-14 23:08:36,956 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2019-10-14 23:08:36,956 INFO L439 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|)) [2019-10-14 23:08:36,957 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-10-14 23:08:36,957 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-14 23:08:36,957 INFO L446 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2019-10-14 23:08:36,957 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-10-14 23:08:36,957 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-14 23:08:36,958 INFO L439 ceAbstractionStarter]: At program point L14(lines 9 21) the Hoare annotation is: false [2019-10-14 23:08:36,958 INFO L439 ceAbstractionStarter]: At program point mainENTRY(lines 9 21) the Hoare annotation is: (and (= |#valid| |old(#valid)|) (= |#memory_int| |old(#memory_int)|)) [2019-10-14 23:08:36,958 INFO L443 ceAbstractionStarter]: For program point L13(lines 13 15) no Hoare annotation was computed. [2019-10-14 23:08:36,958 INFO L443 ceAbstractionStarter]: For program point mainFINAL(lines 9 21) no Hoare annotation was computed. [2019-10-14 23:08:36,959 INFO L439 ceAbstractionStarter]: At program point L12(line 12) the Hoare annotation is: (not (= |main_~#b~0.base| |main_~#a~0.base|)) [2019-10-14 23:08:36,959 INFO L443 ceAbstractionStarter]: For program point L12-1(line 12) no Hoare annotation was computed. [2019-10-14 23:08:36,959 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 9 21) no Hoare annotation was computed. [2019-10-14 23:08:36,959 INFO L443 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 19) no Hoare annotation was computed. [2019-10-14 23:08:36,959 INFO L443 ceAbstractionStarter]: For program point assignEXIT(lines 5 7) no Hoare annotation was computed. [2019-10-14 23:08:36,960 INFO L439 ceAbstractionStarter]: At program point assignENTRY(lines 5 7) the Hoare annotation is: (= |#memory_int| |old(#memory_int)|) [2019-10-14 23:08:36,960 INFO L443 ceAbstractionStarter]: For program point assignFINAL(lines 5 7) no Hoare annotation was computed. [2019-10-14 23:08:36,968 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.10 11:08:36 BoogieIcfgContainer [2019-10-14 23:08:36,968 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-14 23:08:36,971 INFO L168 Benchmark]: Toolchain (without parser) took 1494.08 ms. Allocated memory was 140.0 MB in the beginning and 203.4 MB in the end (delta: 63.4 MB). Free memory was 105.3 MB in the beginning and 117.0 MB in the end (delta: -11.7 MB). Peak memory consumption was 51.7 MB. Max. memory is 7.1 GB. [2019-10-14 23:08:36,972 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 140.0 MB. Free memory was 123.2 MB in the beginning and 123.0 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2019-10-14 23:08:36,973 INFO L168 Benchmark]: CACSL2BoogieTranslator took 247.29 ms. Allocated memory is still 140.0 MB. Free memory was 104.8 MB in the beginning and 95.4 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 7.1 GB. [2019-10-14 23:08:36,975 INFO L168 Benchmark]: Boogie Preprocessor took 124.15 ms. Allocated memory was 140.0 MB in the beginning and 203.4 MB in the end (delta: 63.4 MB). Free memory was 95.4 MB in the beginning and 181.8 MB in the end (delta: -86.4 MB). Peak memory consumption was 14.1 MB. Max. memory is 7.1 GB. [2019-10-14 23:08:36,976 INFO L168 Benchmark]: RCFGBuilder took 257.97 ms. Allocated memory is still 203.4 MB. Free memory was 181.8 MB in the beginning and 169.4 MB in the end (delta: 12.4 MB). Peak memory consumption was 12.4 MB. Max. memory is 7.1 GB. [2019-10-14 23:08:36,976 INFO L168 Benchmark]: TraceAbstraction took 860.16 ms. Allocated memory is still 203.4 MB. Free memory was 168.8 MB in the beginning and 117.0 MB in the end (delta: 51.8 MB). Peak memory consumption was 51.8 MB. Max. memory is 7.1 GB. [2019-10-14 23:08:36,983 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 140.0 MB. Free memory was 123.2 MB in the beginning and 123.0 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 247.29 ms. Allocated memory is still 140.0 MB. Free memory was 104.8 MB in the beginning and 95.4 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 124.15 ms. Allocated memory was 140.0 MB in the beginning and 203.4 MB in the end (delta: 63.4 MB). Free memory was 95.4 MB in the beginning and 181.8 MB in the end (delta: -86.4 MB). Peak memory consumption was 14.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 257.97 ms. Allocated memory is still 203.4 MB. Free memory was 181.8 MB in the beginning and 169.4 MB in the end (delta: 12.4 MB). Peak memory consumption was 12.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 860.16 ms. Allocated memory is still 203.4 MB. Free memory was 168.8 MB in the beginning and 117.0 MB in the end (delta: 51.8 MB). Peak memory consumption was 51.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 19]: 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: 9]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 18 locations, 1 error locations. Result: SAFE, OverallTime: 0.7s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 9 SDtfs, 4 SDslu, 31 SDs, 0 SdLazy, 47 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s 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, 27 HoareAnnotationTreeSize, 7 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 19 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 13 NumberOfCodeBlocks, 13 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 12 ConstructedInterpolants, 0 QuantifiedInterpolants, 792 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...