/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/loops/sum03-2.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-72570d3 [2020-08-22 23:01:31,357 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-22 23:01:31,360 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-22 23:01:31,384 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-22 23:01:31,384 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-22 23:01:31,385 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-22 23:01:31,387 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-22 23:01:31,389 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-22 23:01:31,391 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-22 23:01:31,391 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-22 23:01:31,392 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-22 23:01:31,394 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-22 23:01:31,394 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-22 23:01:31,395 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-22 23:01:31,396 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-22 23:01:31,397 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-22 23:01:31,398 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-22 23:01:31,399 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-22 23:01:31,401 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-22 23:01:31,403 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-22 23:01:31,404 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-22 23:01:31,405 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-22 23:01:31,407 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-22 23:01:31,407 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-22 23:01:31,410 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-08-22 23:01:31,418 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-22 23:01:31,419 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-22 23:01:31,419 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-22 23:01:31,420 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 23:01:31,430 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-22 23:01:31,430 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-22 23:01:31,432 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-22 23:01:31,432 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-22 23:01:31,432 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-22 23:01:31,432 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-22 23:01:31,433 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-22 23:01:31,433 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-22 23:01:31,433 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-22 23:01:31,433 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-22 23:01:31,434 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-22 23:01:31,434 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-22 23:01:31,434 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-22 23:01:31,434 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-22 23:01:31,434 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-22 23:01:31,435 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-08-22 23:01:31,435 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-22 23:01:31,435 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-22 23:01:31,435 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-22 23:01:31,435 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-22 23:01:31,436 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-08-22 23:01:31,436 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-22 23:01:31,436 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 23:01:31,789 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-22 23:01:31,802 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-22 23:01:31,805 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-22 23:01:31,807 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-22 23:01:31,807 INFO L275 PluginConnector]: CDTParser initialized [2020-08-22 23:01:31,808 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/sum03-2.i [2020-08-22 23:01:31,871 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7051b2600/206b9489061f4ed19a6dbad3e9539156/FLAGc9ff1da94 [2020-08-22 23:01:32,322 INFO L306 CDTParser]: Found 1 translation units. [2020-08-22 23:01:32,323 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/sum03-2.i [2020-08-22 23:01:32,330 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7051b2600/206b9489061f4ed19a6dbad3e9539156/FLAGc9ff1da94 [2020-08-22 23:01:32,720 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7051b2600/206b9489061f4ed19a6dbad3e9539156 [2020-08-22 23:01:32,732 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-22 23:01:32,735 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-22 23:01:32,736 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-22 23:01:32,736 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-22 23:01:32,744 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-22 23:01:32,745 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 11:01:32" (1/1) ... [2020-08-22 23:01:32,748 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5530b36d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 11:01:32, skipping insertion in model container [2020-08-22 23:01:32,749 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 11:01:32" (1/1) ... [2020-08-22 23:01:32,758 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-22 23:01:32,777 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-22 23:01:32,945 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 23:01:32,949 INFO L203 MainTranslator]: Completed pre-run [2020-08-22 23:01:32,963 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 23:01:32,977 INFO L208 MainTranslator]: Completed translation [2020-08-22 23:01:32,978 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 11:01:32 WrapperNode [2020-08-22 23:01:32,978 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-22 23:01:32,979 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-22 23:01:32,979 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-22 23:01:32,979 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-22 23:01:32,993 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 11:01:32" (1/1) ... [2020-08-22 23:01:32,993 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 11:01:32" (1/1) ... [2020-08-22 23:01:32,999 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 11:01:32" (1/1) ... [2020-08-22 23:01:32,999 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 11:01:32" (1/1) ... [2020-08-22 23:01:33,096 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 11:01:32" (1/1) ... [2020-08-22 23:01:33,104 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 11:01:32" (1/1) ... [2020-08-22 23:01:33,105 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 11:01:32" (1/1) ... [2020-08-22 23:01:33,106 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-22 23:01:33,106 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-22 23:01:33,106 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-22 23:01:33,106 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-22 23:01:33,107 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 11:01:32" (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 23:01:33,167 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-22 23:01:33,167 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-22 23:01:33,167 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-08-22 23:01:33,167 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-22 23:01:33,168 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-22 23:01:33,168 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-08-22 23:01:33,168 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2020-08-22 23:01:33,168 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-22 23:01:33,168 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-22 23:01:33,168 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-22 23:01:33,430 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-22 23:01:33,431 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-08-22 23:01:33,438 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 11:01:33 BoogieIcfgContainer [2020-08-22 23:01:33,438 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-22 23:01:33,439 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-22 23:01:33,443 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-22 23:01:33,449 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-22 23:01:33,449 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.08 11:01:32" (1/3) ... [2020-08-22 23:01:33,450 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28eb4618 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 11:01:33, skipping insertion in model container [2020-08-22 23:01:33,451 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 11:01:32" (2/3) ... [2020-08-22 23:01:33,454 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28eb4618 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 11:01:33, skipping insertion in model container [2020-08-22 23:01:33,454 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 11:01:33" (3/3) ... [2020-08-22 23:01:33,456 INFO L109 eAbstractionObserver]: Analyzing ICFG sum03-2.i [2020-08-22 23:01:33,472 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-22 23:01:33,480 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-22 23:01:33,495 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-22 23:01:33,517 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-22 23:01:33,518 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-22 23:01:33,518 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-22 23:01:33,518 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-22 23:01:33,518 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-22 23:01:33,518 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-22 23:01:33,518 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-22 23:01:33,518 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-22 23:01:33,542 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states. [2020-08-22 23:01:33,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-08-22 23:01:33,551 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 23:01:33,552 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 23:01:33,553 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 23:01:33,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 23:01:33,559 INFO L82 PathProgramCache]: Analyzing trace with hash 1015763017, now seen corresponding path program 1 times [2020-08-22 23:01:33,566 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 23:01:33,566 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [740712477] [2020-08-22 23:01:33,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 23:01:33,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 23:01:34,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 23:01:34,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 23:01:34,057 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 23:01:34,058 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [740712477] [2020-08-22 23:01:34,061 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 23:01:34,061 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-08-22 23:01:34,062 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1316277638] [2020-08-22 23:01:34,069 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-22 23:01:34,070 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 23:01:34,088 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-22 23:01:34,089 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-08-22 23:01:34,092 INFO L87 Difference]: Start difference. First operand 26 states. Second operand 9 states. [2020-08-22 23:01:34,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 23:01:34,273 INFO L93 Difference]: Finished difference Result 38 states and 46 transitions. [2020-08-22 23:01:34,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-08-22 23:01:34,276 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 19 [2020-08-22 23:01:34,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 23:01:34,284 INFO L225 Difference]: With dead ends: 38 [2020-08-22 23:01:34,284 INFO L226 Difference]: Without dead ends: 0 [2020-08-22 23:01:34,289 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2020-08-22 23:01:34,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-08-22 23:01:34,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-08-22 23:01:34,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-08-22 23:01:34,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-08-22 23:01:34,319 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 19 [2020-08-22 23:01:34,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 23:01:34,319 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-08-22 23:01:34,320 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-22 23:01:34,320 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-08-22 23:01:34,320 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-08-22 23:01:34,321 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-22 23:01:34,323 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-08-22 23:01:34,504 INFO L271 CegarLoopResult]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2020-08-22 23:01:34,504 INFO L271 CegarLoopResult]: At program point ULTIMATE.initEXIT(line -1) the Hoare annotation is: true [2020-08-22 23:01:34,504 INFO L264 CegarLoopResult]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: false [2020-08-22 23:01:34,505 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-08-22 23:01:34,505 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-08-22 23:01:34,505 INFO L264 CegarLoopResult]: At program point ULTIMATE.startFINAL(line -1) the Hoare annotation is: false [2020-08-22 23:01:34,505 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 9 18) the Hoare annotation is: true [2020-08-22 23:01:34,506 INFO L264 CegarLoopResult]: At program point mainEXIT(lines 9 18) the Hoare annotation is: false [2020-08-22 23:01:34,506 INFO L264 CegarLoopResult]: At program point L16(line 16) the Hoare annotation is: (let ((.cse0 (* 2 main_~x~0))) (and (<= .cse0 main_~sn~0) (<= main_~sn~0 .cse0))) [2020-08-22 23:01:34,507 INFO L264 CegarLoopResult]: At program point L15(line 15) the Hoare annotation is: (let ((.cse0 (+ (* 2 main_~x~0) 2))) (and (<= .cse0 main_~sn~0) (<= main_~sn~0 .cse0))) [2020-08-22 23:01:34,507 INFO L264 CegarLoopResult]: At program point L16-1(lines 13 17) the Hoare annotation is: (let ((.cse0 (* 2 main_~x~0))) (and (<= .cse0 main_~sn~0) (<= main_~sn~0 .cse0))) [2020-08-22 23:01:34,507 INFO L264 CegarLoopResult]: At program point L14(line 14) the Hoare annotation is: (let ((.cse0 (* 2 main_~x~0))) (and (<= .cse0 main_~sn~0) (<= main_~sn~0 .cse0))) [2020-08-22 23:01:34,508 INFO L264 CegarLoopResult]: At program point L15-1(line 15) the Hoare annotation is: (let ((.cse0 (+ (* 2 |main_#t~post2|) 2)) (.cse1 (+ (* 2 main_~x~0) 2))) (and (<= .cse0 main_~sn~0) (<= main_~sn~0 .cse0) (<= .cse1 main_~sn~0) (<= main_~sn~0 .cse1))) [2020-08-22 23:01:34,508 INFO L264 CegarLoopResult]: At program point L15-2(line 15) the Hoare annotation is: (let ((.cse1 (+ (* 2 |main_#t~post2|) 2)) (.cse0 (* 2 main_~x~0))) (and (<= .cse0 main_~sn~0) (<= .cse1 main_~sn~0) (<= main_~sn~0 .cse1) (<= main_~sn~0 .cse0))) [2020-08-22 23:01:34,508 INFO L264 CegarLoopResult]: At program point L12(line 12) the Hoare annotation is: (and (<= 0 main_~sn~0) (<= main_~sn~0 0)) [2020-08-22 23:01:34,509 INFO L264 CegarLoopResult]: At program point L11(line 11) the Hoare annotation is: (and (<= 0 main_~sn~0) (<= main_~sn~0 0)) [2020-08-22 23:01:34,509 INFO L264 CegarLoopResult]: At program point L13-2(lines 9 18) the Hoare annotation is: false [2020-08-22 23:01:34,509 INFO L264 CegarLoopResult]: At program point L11-1(line 11) the Hoare annotation is: (and (<= 0 main_~sn~0) (<= main_~sn~0 0)) [2020-08-22 23:01:34,510 INFO L264 CegarLoopResult]: At program point L11-2(line 11) the Hoare annotation is: (and (<= 0 main_~sn~0) (<= main_~sn~0 0)) [2020-08-22 23:01:34,510 INFO L264 CegarLoopResult]: At program point L11-3(line 11) the Hoare annotation is: (and (<= 0 main_~sn~0) (<= main_~sn~0 0)) [2020-08-22 23:01:34,510 INFO L264 CegarLoopResult]: At program point L3-2(lines 2 7) the Hoare annotation is: (or (= |__VERIFIER_assert_#in~cond| 0) (not (= __VERIFIER_assert_~cond 0))) [2020-08-22 23:01:34,510 INFO L271 CegarLoopResult]: At program point __VERIFIER_assertENTRY(lines 2 7) the Hoare annotation is: true [2020-08-22 23:01:34,511 INFO L264 CegarLoopResult]: At program point __VERIFIER_assertEXIT(lines 2 7) the Hoare annotation is: (or (= |__VERIFIER_assert_#in~cond| 0) (not (= __VERIFIER_assert_~cond 0))) [2020-08-22 23:01:34,511 INFO L264 CegarLoopResult]: At program point L4(line 4) the Hoare annotation is: (= |__VERIFIER_assert_#in~cond| 0) [2020-08-22 23:01:34,511 INFO L264 CegarLoopResult]: At program point L3(lines 3 5) the Hoare annotation is: (or (= |__VERIFIER_assert_#in~cond| 0) (not (= __VERIFIER_assert_~cond 0))) [2020-08-22 23:01:34,511 INFO L264 CegarLoopResult]: At program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) the Hoare annotation is: (= |__VERIFIER_assert_#in~cond| 0) [2020-08-22 23:01:34,534 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.08 11:01:34 BoogieIcfgContainer [2020-08-22 23:01:34,535 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-22 23:01:34,538 INFO L168 Benchmark]: Toolchain (without parser) took 1802.56 ms. Allocated memory was 147.8 MB in the beginning and 203.4 MB in the end (delta: 55.6 MB). Free memory was 105.3 MB in the beginning and 99.1 MB in the end (delta: 6.2 MB). Peak memory consumption was 61.8 MB. Max. memory is 7.1 GB. [2020-08-22 23:01:34,539 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 147.8 MB. Free memory was 123.6 MB in the beginning and 123.4 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-08-22 23:01:34,540 INFO L168 Benchmark]: CACSL2BoogieTranslator took 242.64 ms. Allocated memory is still 147.8 MB. Free memory was 105.1 MB in the beginning and 95.3 MB in the end (delta: 9.8 MB). Peak memory consumption was 9.8 MB. Max. memory is 7.1 GB. [2020-08-22 23:01:34,541 INFO L168 Benchmark]: Boogie Preprocessor took 126.74 ms. Allocated memory was 147.8 MB in the beginning and 203.4 MB in the end (delta: 55.6 MB). Free memory was 95.3 MB in the beginning and 182.5 MB in the end (delta: -87.2 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. [2020-08-22 23:01:34,542 INFO L168 Benchmark]: RCFGBuilder took 332.29 ms. Allocated memory is still 203.4 MB. Free memory was 182.5 MB in the beginning and 170.7 MB in the end (delta: 11.8 MB). Peak memory consumption was 11.8 MB. Max. memory is 7.1 GB. [2020-08-22 23:01:34,543 INFO L168 Benchmark]: TraceAbstraction took 1095.31 ms. Allocated memory is still 203.4 MB. Free memory was 170.0 MB in the beginning and 99.1 MB in the end (delta: 70.9 MB). Peak memory consumption was 70.9 MB. Max. memory is 7.1 GB. [2020-08-22 23:01:34,548 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 147.8 MB. Free memory was 123.6 MB in the beginning and 123.4 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 242.64 ms. Allocated memory is still 147.8 MB. Free memory was 105.1 MB in the beginning and 95.3 MB in the end (delta: 9.8 MB). Peak memory consumption was 9.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 126.74 ms. Allocated memory was 147.8 MB in the beginning and 203.4 MB in the end (delta: 55.6 MB). Free memory was 95.3 MB in the beginning and 182.5 MB in the end (delta: -87.2 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 332.29 ms. Allocated memory is still 203.4 MB. Free memory was 182.5 MB in the beginning and 170.7 MB in the end (delta: 11.8 MB). Peak memory consumption was 11.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1095.31 ms. Allocated memory is still 203.4 MB. Free memory was 170.0 MB in the beginning and 99.1 MB in the end (delta: 70.9 MB). Peak memory consumption was 70.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: 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: 13]: Loop Invariant Derived loop invariant: 2 * x <= sn && sn <= 2 * x - ProcedureContractResult [Line: 9]: Procedure Contract for main Derived contract for procedure main: 0 - ProcedureContractResult [Line: 2]: Procedure Contract for __VERIFIER_assert Derived contract for procedure __VERIFIER_assert: \old(cond) == 0 || !(cond == 0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 26 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 0.8s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 14 SDtfs, 11 SDslu, 77 SDs, 0 SdLazy, 42 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 15 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=26occurred 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, 26 LocationsWithAnnotation, 32 PreInvPairs, 42 NumberOfFragments, 177 HoareAnnotationTreeSize, 32 FomulaSimplifications, 36 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 26 FomulaSimplificationsInter, 15 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 19 NumberOfCodeBlocks, 19 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 18 ConstructedInterpolants, 0 QuantifiedInterpolants, 3420 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...