/usr/bin/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 --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.use.separate.solver.for.trace.checks true -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/bitvector-regression/implicitunsignedconversion-2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-72570d3 [2020-08-22 21:51:10,033 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-22 21:51:10,036 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-22 21:51:10,074 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-22 21:51:10,074 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-22 21:51:10,082 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-22 21:51:10,085 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-22 21:51:10,089 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-22 21:51:10,091 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-22 21:51:10,093 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-22 21:51:10,094 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-22 21:51:10,095 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-22 21:51:10,095 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-22 21:51:10,098 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-22 21:51:10,100 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-22 21:51:10,101 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-22 21:51:10,102 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-22 21:51:10,103 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-22 21:51:10,105 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-22 21:51:10,112 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-22 21:51:10,114 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-22 21:51:10,115 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-22 21:51:10,116 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-22 21:51:10,117 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-22 21:51:10,128 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-08-22 21:51:10,132 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-22 21:51:10,141 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-22 21:51:10,142 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-22 21:51:10,142 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-22 21:51:10,143 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-22 21:51:10,144 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-22 21:51:10,145 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-22 21:51:10,145 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-22 21:51:10,145 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-22 21:51:10,146 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-22 21:51:10,147 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-22 21:51:10,148 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-08-22 21:51:10,156 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-22 21:51:10,156 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-22 21:51:10,158 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-22 21:51:10,158 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-22 21:51:10,158 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-22 21:51:10,158 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-22 21:51:10,158 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-22 21:51:10,159 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-22 21:51:10,159 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-22 21:51:10,159 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-22 21:51:10,159 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-22 21:51:10,159 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-22 21:51:10,160 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-22 21:51:10,160 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-22 21:51:10,160 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-22 21:51:10,160 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-08-22 21:51:10,160 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-22 21:51:10,161 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-22 21:51:10,161 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-22 21:51:10,161 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-22 21:51:10,161 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-08-22 21:51:10,161 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-22 21:51:10,162 INFO L138 SettingsManager]: * Use separate solver for trace checks=false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use separate solver for trace checks -> true [2020-08-22 21:51:10,459 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-22 21:51:10,478 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-22 21:51:10,482 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-22 21:51:10,483 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-22 21:51:10,483 INFO L275 PluginConnector]: CDTParser initialized [2020-08-22 21:51:10,484 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/bitvector-regression/implicitunsignedconversion-2.c [2020-08-22 21:51:10,555 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b9046fc86/fb38bf65b1a9403bb02bd5771c396aa7/FLAG8b080f2a8 [2020-08-22 21:51:10,964 INFO L306 CDTParser]: Found 1 translation units. [2020-08-22 21:51:10,964 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/bitvector-regression/implicitunsignedconversion-2.c [2020-08-22 21:51:10,971 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b9046fc86/fb38bf65b1a9403bb02bd5771c396aa7/FLAG8b080f2a8 [2020-08-22 21:51:11,353 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b9046fc86/fb38bf65b1a9403bb02bd5771c396aa7 [2020-08-22 21:51:11,362 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-22 21:51:11,364 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-22 21:51:11,365 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-22 21:51:11,365 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-22 21:51:11,368 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-22 21:51:11,369 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 09:51:11" (1/1) ... [2020-08-22 21:51:11,372 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@30914678 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:51:11, skipping insertion in model container [2020-08-22 21:51:11,372 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 09:51:11" (1/1) ... [2020-08-22 21:51:11,380 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-22 21:51:11,395 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-22 21:51:11,533 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 21:51:11,538 INFO L203 MainTranslator]: Completed pre-run [2020-08-22 21:51:11,553 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 21:51:11,567 INFO L208 MainTranslator]: Completed translation [2020-08-22 21:51:11,568 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:51:11 WrapperNode [2020-08-22 21:51:11,568 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-22 21:51:11,569 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-22 21:51:11,569 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-22 21:51:11,569 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-22 21:51:11,582 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:51:11" (1/1) ... [2020-08-22 21:51:11,582 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:51:11" (1/1) ... [2020-08-22 21:51:11,587 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:51:11" (1/1) ... [2020-08-22 21:51:11,587 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:51:11" (1/1) ... [2020-08-22 21:51:11,590 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:51:11" (1/1) ... [2020-08-22 21:51:11,592 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:51:11" (1/1) ... [2020-08-22 21:51:11,593 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:51:11" (1/1) ... [2020-08-22 21:51:11,594 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-22 21:51:11,594 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-22 21:51:11,594 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-22 21:51:11,595 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-22 21:51:11,595 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:51:11" (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 [2020-08-22 21:51:11,733 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-22 21:51:11,733 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-22 21:51:11,733 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-22 21:51:11,733 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-22 21:51:11,734 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-22 21:51:11,734 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-22 21:51:11,734 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-22 21:51:11,861 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-22 21:51:11,862 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-08-22 21:51:11,865 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 09:51:11 BoogieIcfgContainer [2020-08-22 21:51:11,866 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-22 21:51:11,867 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-22 21:51:11,867 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-22 21:51:11,870 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-22 21:51:11,870 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.08 09:51:11" (1/3) ... [2020-08-22 21:51:11,871 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74b671ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 09:51:11, skipping insertion in model container [2020-08-22 21:51:11,871 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:51:11" (2/3) ... [2020-08-22 21:51:11,872 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74b671ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 09:51:11, skipping insertion in model container [2020-08-22 21:51:11,872 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 09:51:11" (3/3) ... [2020-08-22 21:51:11,873 INFO L109 eAbstractionObserver]: Analyzing ICFG implicitunsignedconversion-2.c [2020-08-22 21:51:11,884 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-22 21:51:11,889 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-22 21:51:11,903 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-22 21:51:11,924 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-22 21:51:11,924 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-22 21:51:11,924 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-22 21:51:11,925 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-22 21:51:11,925 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-22 21:51:11,925 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-22 21:51:11,925 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-22 21:51:11,925 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-22 21:51:11,938 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states. [2020-08-22 21:51:11,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-08-22 21:51:11,948 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 21:51:11,949 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 21:51:11,949 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 21:51:11,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 21:51:11,955 INFO L82 PathProgramCache]: Analyzing trace with hash 811150295, now seen corresponding path program 1 times [2020-08-22 21:51:11,963 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 21:51:11,964 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [599093929] [2020-08-22 21:51:11,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 21:51:12,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:51:12,188 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 21:51:12,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:51:12,203 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 21:51:12,204 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [599093929] [2020-08-22 21:51:12,206 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 21:51:12,207 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-08-22 21:51:12,208 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1395078006] [2020-08-22 21:51:12,213 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-08-22 21:51:12,214 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 21:51:12,236 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-08-22 21:51:12,238 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-08-22 21:51:12,241 INFO L87 Difference]: Start difference. First operand 15 states. Second operand 4 states. [2020-08-22 21:51:12,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 21:51:12,324 INFO L93 Difference]: Finished difference Result 19 states and 18 transitions. [2020-08-22 21:51:12,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-08-22 21:51:12,326 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2020-08-22 21:51:12,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 21:51:12,333 INFO L225 Difference]: With dead ends: 19 [2020-08-22 21:51:12,333 INFO L226 Difference]: Without dead ends: 0 [2020-08-22 21:51:12,336 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-08-22 21:51:12,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-08-22 21:51:12,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-08-22 21:51:12,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-08-22 21:51:12,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-08-22 21:51:12,359 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 8 [2020-08-22 21:51:12,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 21:51:12,359 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-08-22 21:51:12,359 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-08-22 21:51:12,359 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-08-22 21:51:12,359 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-08-22 21:51:12,360 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-22 21:51:12,361 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-08-22 21:51:12,483 INFO L271 CegarLoopResult]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2020-08-22 21:51:12,483 INFO L271 CegarLoopResult]: At program point ULTIMATE.initEXIT(line -1) the Hoare annotation is: true [2020-08-22 21:51:12,483 INFO L271 CegarLoopResult]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2020-08-22 21:51:12,483 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-08-22 21:51:12,484 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-08-22 21:51:12,484 INFO L271 CegarLoopResult]: At program point ULTIMATE.startFINAL(line -1) the Hoare annotation is: true [2020-08-22 21:51:12,484 INFO L264 CegarLoopResult]: At program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 12) the Hoare annotation is: false [2020-08-22 21:51:12,484 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 3 14) the Hoare annotation is: true [2020-08-22 21:51:12,485 INFO L264 CegarLoopResult]: At program point L13(line 13) the Hoare annotation is: false [2020-08-22 21:51:12,485 INFO L264 CegarLoopResult]: At program point mainFINAL(lines 3 14) the Hoare annotation is: (and (<= main_~plus_one~0 1) (<= 1 main_~plus_one~0) (< (div main_~minus_one~0 4294967296) (div main_~plus_one~0 4294967296)) (<= main_~plus_one~0 (+ main_~minus_one~0 2))) [2020-08-22 21:51:12,486 INFO L264 CegarLoopResult]: At program point L11(line 11) the Hoare annotation is: (and (<= main_~plus_one~0 1) (<= 1 main_~plus_one~0) (< (div main_~minus_one~0 4294967296) (div main_~plus_one~0 4294967296)) (<= main_~plus_one~0 (+ main_~minus_one~0 2))) [2020-08-22 21:51:12,486 INFO L264 CegarLoopResult]: At program point mainEXIT(lines 3 14) the Hoare annotation is: (and (<= main_~plus_one~0 1) (<= 1 main_~plus_one~0) (< (div main_~minus_one~0 4294967296) (div main_~plus_one~0 4294967296)) (<= main_~plus_one~0 (+ main_~minus_one~0 2))) [2020-08-22 21:51:12,486 INFO L264 CegarLoopResult]: At program point L8(lines 3 14) the Hoare annotation is: false [2020-08-22 21:51:12,487 INFO L264 CegarLoopResult]: At program point L7(lines 7 9) the Hoare annotation is: (and (<= main_~plus_one~0 1) (<= 1 main_~plus_one~0) (< (div main_~minus_one~0 4294967296) (div main_~plus_one~0 4294967296)) (<= main_~plus_one~0 (+ main_~minus_one~0 2))) [2020-08-22 21:51:12,487 INFO L264 CegarLoopResult]: At program point L5(line 5) the Hoare annotation is: (and (<= main_~plus_one~0 1) (<= 1 main_~plus_one~0)) [2020-08-22 21:51:12,503 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.08 09:51:12 BoogieIcfgContainer [2020-08-22 21:51:12,504 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-22 21:51:12,506 INFO L168 Benchmark]: Toolchain (without parser) took 1141.63 ms. Allocated memory was 140.5 MB in the beginning and 203.9 MB in the end (delta: 63.4 MB). Free memory was 103.8 MB in the beginning and 138.0 MB in the end (delta: -34.2 MB). Peak memory consumption was 29.3 MB. Max. memory is 7.1 GB. [2020-08-22 21:51:12,507 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 140.5 MB. Free memory was 121.8 MB in the beginning and 121.6 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-08-22 21:51:12,509 INFO L168 Benchmark]: CACSL2BoogieTranslator took 203.30 ms. Allocated memory is still 140.5 MB. Free memory was 103.6 MB in the beginning and 94.6 MB in the end (delta: 9.0 MB). Peak memory consumption was 9.0 MB. Max. memory is 7.1 GB. [2020-08-22 21:51:12,510 INFO L168 Benchmark]: Boogie Preprocessor took 25.41 ms. Allocated memory is still 140.5 MB. Free memory was 94.6 MB in the beginning and 93.2 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2020-08-22 21:51:12,511 INFO L168 Benchmark]: RCFGBuilder took 271.36 ms. Allocated memory was 140.5 MB in the beginning and 203.9 MB in the end (delta: 63.4 MB). Free memory was 93.2 MB in the beginning and 173.7 MB in the end (delta: -80.4 MB). Peak memory consumption was 13.6 MB. Max. memory is 7.1 GB. [2020-08-22 21:51:12,512 INFO L168 Benchmark]: TraceAbstraction took 636.85 ms. Allocated memory is still 203.9 MB. Free memory was 173.7 MB in the beginning and 138.0 MB in the end (delta: 35.7 MB). Peak memory consumption was 35.7 MB. Max. memory is 7.1 GB. [2020-08-22 21:51:12,516 INFO L336 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 140.5 MB. Free memory was 121.8 MB in the beginning and 121.6 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 203.30 ms. Allocated memory is still 140.5 MB. Free memory was 103.6 MB in the beginning and 94.6 MB in the end (delta: 9.0 MB). Peak memory consumption was 9.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 25.41 ms. Allocated memory is still 140.5 MB. Free memory was 94.6 MB in the beginning and 93.2 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 271.36 ms. Allocated memory was 140.5 MB in the beginning and 203.9 MB in the end (delta: 63.4 MB). Free memory was 93.2 MB in the beginning and 173.7 MB in the end (delta: -80.4 MB). Peak memory consumption was 13.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 636.85 ms. Allocated memory is still 203.9 MB. Free memory was 173.7 MB in the beginning and 138.0 MB in the end (delta: 35.7 MB). Peak memory consumption was 35.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 12]: 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: 3]: Loop Invariant Derived loop invariant: 0 - ProcedureContractResult [Line: 3]: Procedure Contract for main Derived contract for procedure main: ((plus_one <= 1 && 1 <= plus_one) && minus_one / 4294967296 < plus_one / 4294967296) && plus_one <= minus_one + 2 - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 15 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 0.4s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 10 SDtfs, 7 SDslu, 12 SDs, 0 SdLazy, 2 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=15occurred 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, 15 LocationsWithAnnotation, 15 PreInvPairs, 19 NumberOfFragments, 93 HoareAnnotationTreeSize, 15 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 15 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 8 NumberOfCodeBlocks, 8 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 175 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, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...