/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/signextension-2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-3af5e1f [2020-09-04 21:37:36,658 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-04 21:37:36,663 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-04 21:37:36,704 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2020-09-04 21:37:36,728 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-04 21:37:36,731 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-04 21:37:36,734 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-04 21:37:36,736 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-04 21:37:36,737 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-04 21:37:36,738 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-04 21:37:36,740 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-04 21:37:36,749 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-04 21:37:36,751 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-04 21:37:36,752 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-04 21:37:36,753 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-04 21:37:36,754 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-04 21:37:36,756 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-09-04 21:37:36,765 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-04 21:37:36,766 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-04 21:37:36,766 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-04 21:37:36,767 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-09-04 21:37:36,779 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-04 21:37:36,779 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-04 21:37:36,781 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-04 21:37:36,781 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-04 21:37:36,781 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-04 21:37:36,781 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-04 21:37:36,781 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-04 21:37:36,782 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-04 21:37:36,782 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-04 21:37:36,782 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-04 21:37:36,782 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-04 21:37:36,782 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-04 21:37:36,783 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-04 21:37:36,783 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-04 21:37:36,783 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-04 21:37:36,783 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-09-04 21:37:36,784 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-04 21:37:36,784 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-04 21:37:36,784 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-04 21:37:36,784 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-04 21:37:36,784 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-09-04 21:37:36,785 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-04 21:37:36,785 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 [2020-09-04 21:37:37,217 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-04 21:37:37,241 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-04 21:37:37,246 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-04 21:37:37,247 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-04 21:37:37,250 INFO L275 PluginConnector]: CDTParser initialized [2020-09-04 21:37:37,251 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/bitvector-regression/signextension-2.c [2020-09-04 21:37:37,343 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/02a1501f6/a260a6744d8b495b9b5099370391dade/FLAG30797ece0 [2020-09-04 21:37:37,865 INFO L306 CDTParser]: Found 1 translation units. [2020-09-04 21:37:37,866 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/bitvector-regression/signextension-2.c [2020-09-04 21:37:37,874 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/02a1501f6/a260a6744d8b495b9b5099370391dade/FLAG30797ece0 [2020-09-04 21:37:38,230 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/02a1501f6/a260a6744d8b495b9b5099370391dade [2020-09-04 21:37:38,245 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-04 21:37:38,247 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-04 21:37:38,248 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-04 21:37:38,248 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-04 21:37:38,253 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-04 21:37:38,254 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.09 09:37:38" (1/1) ... [2020-09-04 21:37:38,258 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@718a405b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 09:37:38, skipping insertion in model container [2020-09-04 21:37:38,258 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.09 09:37:38" (1/1) ... [2020-09-04 21:37:38,269 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-04 21:37:38,291 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-04 21:37:38,489 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-04 21:37:38,496 INFO L203 MainTranslator]: Completed pre-run [2020-09-04 21:37:38,516 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-04 21:37:38,533 INFO L208 MainTranslator]: Completed translation [2020-09-04 21:37:38,533 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 09:37:38 WrapperNode [2020-09-04 21:37:38,534 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-04 21:37:38,534 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-04 21:37:38,535 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-04 21:37:38,535 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-04 21:37:38,549 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 09:37:38" (1/1) ... [2020-09-04 21:37:38,550 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 09:37:38" (1/1) ... [2020-09-04 21:37:38,638 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 09:37:38" (1/1) ... [2020-09-04 21:37:38,639 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 09:37:38" (1/1) ... [2020-09-04 21:37:38,642 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 09:37:38" (1/1) ... [2020-09-04 21:37:38,645 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 09:37:38" (1/1) ... [2020-09-04 21:37:38,646 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 09:37:38" (1/1) ... [2020-09-04 21:37:38,648 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-04 21:37:38,648 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-04 21:37:38,648 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-04 21:37:38,648 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-04 21:37:38,649 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 09:37:38" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/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 [2020-09-04 21:37:38,721 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-04 21:37:38,721 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-04 21:37:38,722 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-04 21:37:38,722 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-04 21:37:38,722 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-04 21:37:38,722 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-04 21:37:38,722 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-04 21:37:38,914 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-04 21:37:38,915 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-04 21:37:38,918 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.09 09:37:38 BoogieIcfgContainer [2020-09-04 21:37:38,918 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-04 21:37:38,920 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-04 21:37:38,920 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-04 21:37:38,923 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-04 21:37:38,924 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.09 09:37:38" (1/3) ... [2020-09-04 21:37:38,925 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12824189 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.09 09:37:38, skipping insertion in model container [2020-09-04 21:37:38,925 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 09:37:38" (2/3) ... [2020-09-04 21:37:38,926 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12824189 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.09 09:37:38, skipping insertion in model container [2020-09-04 21:37:38,927 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.09 09:37:38" (3/3) ... [2020-09-04 21:37:38,930 INFO L109 eAbstractionObserver]: Analyzing ICFG signextension-2.c [2020-09-04 21:37:38,941 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-04 21:37:38,950 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-04 21:37:38,969 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-04 21:37:38,994 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-04 21:37:38,995 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-04 21:37:38,995 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-04 21:37:38,995 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-04 21:37:38,995 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-04 21:37:38,995 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-04 21:37:38,995 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-04 21:37:38,995 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-04 21:37:39,009 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states. [2020-09-04 21:37:39,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-09-04 21:37:39,025 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 21:37:39,026 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 21:37:39,027 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 21:37:39,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 21:37:39,035 INFO L82 PathProgramCache]: Analyzing trace with hash 49487317, now seen corresponding path program 1 times [2020-09-04 21:37:39,046 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 21:37:39,046 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1426897015] [2020-09-04 21:37:39,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 21:37:39,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 21:37:39,575 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 7 [2020-09-04 21:37:39,705 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 14 [2020-09-04 21:37:39,851 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 21 [2020-09-04 21:37:40,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 21:37:40,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 21:37:40,181 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 21:37:40,182 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1426897015] [2020-09-04 21:37:40,184 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 21:37:40,185 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-04 21:37:40,186 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [467618762] [2020-09-04 21:37:40,192 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-04 21:37:40,192 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 21:37:40,210 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-04 21:37:40,211 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-09-04 21:37:40,214 INFO L87 Difference]: Start difference. First operand 19 states. Second operand 8 states. [2020-09-04 21:37:40,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 21:37:40,477 INFO L93 Difference]: Finished difference Result 23 states and 22 transitions. [2020-09-04 21:37:40,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-04 21:37:40,479 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 12 [2020-09-04 21:37:40,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 21:37:40,488 INFO L225 Difference]: With dead ends: 23 [2020-09-04 21:37:40,489 INFO L226 Difference]: Without dead ends: 0 [2020-09-04 21:37:40,494 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2020-09-04 21:37:40,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-04 21:37:40,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-04 21:37:40,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-04 21:37:40,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-04 21:37:40,526 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 12 [2020-09-04 21:37:40,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 21:37:40,526 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-04 21:37:40,526 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-04 21:37:40,527 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-04 21:37:40,527 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-04 21:37:40,527 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-04 21:37:40,530 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-04 21:37:40,901 INFO L271 CegarLoopResult]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2020-09-04 21:37:40,901 INFO L271 CegarLoopResult]: At program point ULTIMATE.initEXIT(line -1) the Hoare annotation is: true [2020-09-04 21:37:40,901 INFO L271 CegarLoopResult]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2020-09-04 21:37:40,902 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-09-04 21:37:40,902 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-09-04 21:37:40,902 INFO L271 CegarLoopResult]: At program point ULTIMATE.startFINAL(line -1) the Hoare annotation is: true [2020-09-04 21:37:40,902 INFO L264 CegarLoopResult]: At program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 25) the Hoare annotation is: false [2020-09-04 21:37:40,902 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 3 27) the Hoare annotation is: true [2020-09-04 21:37:40,903 INFO L264 CegarLoopResult]: At program point L26(line 26) the Hoare annotation is: false [2020-09-04 21:37:40,903 INFO L264 CegarLoopResult]: At program point mainEXIT(lines 3 27) the Hoare annotation is: (let ((.cse0 (* 4294967296 (div main_~unsignedtounsigned~0 4294967296))) (.cse3 (div main_~signedtounsigned~0 4294967296)) (.cse1 (div main_~allbits~0 65536)) (.cse2 (+ main_~signedallbits~0 1))) (and (<= main_~unsignedtosigned~0 65535) (< (+ .cse0 65534) main_~unsignedtounsigned~0) (<= (+ .cse1 1) 0) (<= main_~unsignedtounsigned~0 (+ .cse0 65535)) (<= .cse2 0) (<= (+ .cse3 1) 0) (= (+ main_~signedtosigned~0 1) 0) (<= main_~unsignedtounsigned~0 65535) (<= 0 (+ main_~allbits~0 1)) (< (+ (* 4294967296 .cse3) 4294967294) main_~signedtounsigned~0) (<= 0 (+ main_~unsignedtosigned~0 (* 65536 .cse1) 1)) (<= 0 .cse2))) [2020-09-04 21:37:40,904 INFO L264 CegarLoopResult]: At program point L24(line 24) the Hoare annotation is: (let ((.cse0 (* 4294967296 (div main_~unsignedtounsigned~0 4294967296))) (.cse3 (div main_~signedtounsigned~0 4294967296)) (.cse1 (div main_~allbits~0 65536)) (.cse2 (+ main_~signedallbits~0 1))) (and (<= main_~unsignedtosigned~0 65535) (< (+ .cse0 65534) main_~unsignedtounsigned~0) (<= (+ .cse1 1) 0) (<= main_~unsignedtounsigned~0 (+ .cse0 65535)) (<= .cse2 0) (<= (+ .cse3 1) 0) (= (+ main_~signedtosigned~0 1) 0) (<= main_~unsignedtounsigned~0 65535) (<= 0 (+ main_~allbits~0 1)) (< (+ (* 4294967296 .cse3) 4294967294) main_~signedtounsigned~0) (<= 0 (+ main_~unsignedtosigned~0 (* 65536 .cse1) 1)) (<= 0 .cse2))) [2020-09-04 21:37:40,904 INFO L264 CegarLoopResult]: At program point L21(lines 3 27) the Hoare annotation is: false [2020-09-04 21:37:40,904 INFO L264 CegarLoopResult]: At program point L19(lines 19 22) the Hoare annotation is: (let ((.cse0 (* 4294967296 (div main_~unsignedtounsigned~0 4294967296))) (.cse3 (div main_~signedtounsigned~0 4294967296)) (.cse1 (div main_~allbits~0 65536)) (.cse2 (+ main_~signedallbits~0 1))) (and (<= main_~unsignedtosigned~0 65535) (< (+ .cse0 65534) main_~unsignedtounsigned~0) (<= (+ .cse1 1) 0) (<= main_~unsignedtounsigned~0 (+ .cse0 65535)) (<= .cse2 0) (<= (+ .cse3 1) 0) (= (+ main_~signedtosigned~0 1) 0) (<= main_~unsignedtounsigned~0 65535) (<= 0 (+ main_~allbits~0 1)) (< (+ (* 4294967296 .cse3) 4294967294) main_~signedtounsigned~0) (<= 0 (+ main_~unsignedtosigned~0 (* 65536 .cse1) 1)) (<= 0 .cse2))) [2020-09-04 21:37:40,904 INFO L264 CegarLoopResult]: At program point mainFINAL(lines 3 27) the Hoare annotation is: (let ((.cse0 (* 4294967296 (div main_~unsignedtounsigned~0 4294967296))) (.cse3 (div main_~signedtounsigned~0 4294967296)) (.cse1 (div main_~allbits~0 65536)) (.cse2 (+ main_~signedallbits~0 1))) (and (<= main_~unsignedtosigned~0 65535) (< (+ .cse0 65534) main_~unsignedtounsigned~0) (<= (+ .cse1 1) 0) (<= main_~unsignedtounsigned~0 (+ .cse0 65535)) (<= .cse2 0) (<= (+ .cse3 1) 0) (= (+ main_~signedtosigned~0 1) 0) (<= main_~unsignedtounsigned~0 65535) (<= 0 (+ main_~allbits~0 1)) (< (+ (* 4294967296 .cse3) 4294967294) main_~signedtounsigned~0) (<= 0 (+ main_~unsignedtosigned~0 (* 65536 .cse1) 1)) (<= 0 .cse2))) [2020-09-04 21:37:40,905 INFO L264 CegarLoopResult]: At program point L10(line 10) the Hoare annotation is: (let ((.cse0 (* 4294967296 (div main_~unsignedtounsigned~0 4294967296))) (.cse1 (div main_~allbits~0 65536)) (.cse2 (+ main_~signedallbits~0 1))) (and (<= main_~unsignedtosigned~0 65535) (< (+ .cse0 65534) main_~unsignedtounsigned~0) (<= (+ .cse1 1) 0) (<= main_~unsignedtounsigned~0 (+ .cse0 65535)) (<= .cse2 0) (= (+ main_~signedtosigned~0 1) 0) (<= main_~unsignedtounsigned~0 65535) (<= 0 (+ main_~allbits~0 1)) (<= 0 (+ main_~unsignedtosigned~0 (* 65536 .cse1) 1)) (<= 0 .cse2))) [2020-09-04 21:37:40,905 INFO L264 CegarLoopResult]: At program point L9(line 9) the Hoare annotation is: (let ((.cse0 (* 4294967296 (div main_~unsignedtounsigned~0 4294967296))) (.cse1 (div main_~allbits~0 65536))) (and (<= main_~unsignedtosigned~0 65535) (< (+ .cse0 65534) main_~unsignedtounsigned~0) (<= (+ .cse1 1) 0) (<= main_~unsignedtounsigned~0 (+ .cse0 65535)) (= (+ main_~signedallbits~0 1) 0) (<= main_~unsignedtounsigned~0 65535) (<= 0 (+ main_~allbits~0 1)) (<= 0 (+ main_~unsignedtosigned~0 (* 65536 .cse1) 1)))) [2020-09-04 21:37:40,906 INFO L264 CegarLoopResult]: At program point L8(line 8) the Hoare annotation is: (let ((.cse0 (div main_~allbits~0 65536))) (let ((.cse1 (* 65536 .cse0))) (and (<= main_~unsignedtosigned~0 65535) (<= (+ .cse0 1) 0) (= (+ main_~signedallbits~0 .cse1 65536) main_~allbits~0) (<= 0 (+ main_~allbits~0 1)) (<= 0 (+ main_~unsignedtosigned~0 .cse1 1))))) [2020-09-04 21:37:40,906 INFO L264 CegarLoopResult]: At program point L7(line 7) the Hoare annotation is: (and (<= (+ (div main_~allbits~0 65536) 1) 0) (= (+ main_~signedallbits~0 1) 0) (<= 0 (+ main_~allbits~0 1))) [2020-09-04 21:37:40,906 INFO L264 CegarLoopResult]: At program point L6(line 6) the Hoare annotation is: (let ((.cse0 (+ main_~allbits~0 1))) (and (<= .cse0 0) (<= 0 .cse0))) [2020-09-04 21:37:40,932 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.09 09:37:40 BoogieIcfgContainer [2020-09-04 21:37:40,932 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-04 21:37:40,934 INFO L168 Benchmark]: Toolchain (without parser) took 2687.74 ms. Allocated memory was 146.8 MB in the beginning and 234.4 MB in the end (delta: 87.6 MB). Free memory was 103.8 MB in the beginning and 138.6 MB in the end (delta: -34.8 MB). Peak memory consumption was 52.7 MB. Max. memory is 7.1 GB. [2020-09-04 21:37:40,935 INFO L168 Benchmark]: CDTParser took 0.89 ms. Allocated memory is still 146.8 MB. Free memory was 122.4 MB in the beginning and 122.2 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-04 21:37:40,936 INFO L168 Benchmark]: CACSL2BoogieTranslator took 285.93 ms. Allocated memory is still 146.8 MB. Free memory was 103.4 MB in the beginning and 94.2 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.2 MB. Max. memory is 7.1 GB. [2020-09-04 21:37:40,937 INFO L168 Benchmark]: Boogie Preprocessor took 113.32 ms. Allocated memory was 146.8 MB in the beginning and 203.4 MB in the end (delta: 56.6 MB). Free memory was 94.2 MB in the beginning and 182.6 MB in the end (delta: -88.5 MB). Peak memory consumption was 10.3 MB. Max. memory is 7.1 GB. [2020-09-04 21:37:40,938 INFO L168 Benchmark]: RCFGBuilder took 270.37 ms. Allocated memory is still 203.4 MB. Free memory was 182.0 MB in the beginning and 170.5 MB in the end (delta: 11.4 MB). Peak memory consumption was 11.4 MB. Max. memory is 7.1 GB. [2020-09-04 21:37:40,939 INFO L168 Benchmark]: TraceAbstraction took 2012.44 ms. Allocated memory was 203.4 MB in the beginning and 234.4 MB in the end (delta: 30.9 MB). Free memory was 170.5 MB in the beginning and 138.6 MB in the end (delta: 31.9 MB). Peak memory consumption was 62.8 MB. Max. memory is 7.1 GB. [2020-09-04 21:37:40,943 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.89 ms. Allocated memory is still 146.8 MB. Free memory was 122.4 MB in the beginning and 122.2 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 285.93 ms. Allocated memory is still 146.8 MB. Free memory was 103.4 MB in the beginning and 94.2 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 113.32 ms. Allocated memory was 146.8 MB in the beginning and 203.4 MB in the end (delta: 56.6 MB). Free memory was 94.2 MB in the beginning and 182.6 MB in the end (delta: -88.5 MB). Peak memory consumption was 10.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 270.37 ms. Allocated memory is still 203.4 MB. Free memory was 182.0 MB in the beginning and 170.5 MB in the end (delta: 11.4 MB). Peak memory consumption was 11.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2012.44 ms. Allocated memory was 203.4 MB in the beginning and 234.4 MB in the end (delta: 30.9 MB). Free memory was 170.5 MB in the beginning and 138.6 MB in the end (delta: 31.9 MB). Peak memory consumption was 62.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 25]: 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: ((((((((((unsignedtosigned <= 65535 && 4294967296 * (unsignedtounsigned / 4294967296) + 65534 < unsignedtounsigned) && allbits / 65536 + 1 <= 0) && unsignedtounsigned <= 4294967296 * (unsignedtounsigned / 4294967296) + 65535) && signedallbits + 1 <= 0) && signedtounsigned / 4294967296 + 1 <= 0) && signedtosigned + 1 == 0) && unsignedtounsigned <= 65535) && 0 <= allbits + 1) && 4294967296 * (signedtounsigned / 4294967296) + 4294967294 < signedtounsigned) && 0 <= unsignedtosigned + 65536 * (allbits / 65536) + 1) && 0 <= signedallbits + 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 19 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.5s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 9 SDtfs, 33 SDslu, 20 SDs, 0 SdLazy, 15 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=19occurred 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, 19 LocationsWithAnnotation, 19 PreInvPairs, 23 NumberOfFragments, 501 HoareAnnotationTreeSize, 19 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 19 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 12 NumberOfCodeBlocks, 12 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 11 ConstructedInterpolants, 0 QuantifiedInterpolants, 2145 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...