/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 -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/loop-industry-pattern/mod3.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-72570d3 [2020-08-22 19:48:58,259 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-22 19:48:58,262 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-22 19:48:58,285 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-22 19:48:58,286 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-22 19:48:58,287 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-22 19:48:58,288 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-22 19:48:58,290 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-22 19:48:58,291 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-22 19:48:58,292 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-22 19:48:58,293 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-22 19:48:58,294 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-22 19:48:58,295 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-22 19:48:58,296 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-22 19:48:58,297 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-22 19:48:58,298 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-22 19:48:58,298 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-22 19:48:58,299 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-22 19:48:58,301 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-22 19:48:58,303 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-22 19:48:58,304 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-22 19:48:58,305 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-22 19:48:58,307 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-22 19:48:58,307 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-22 19:48:58,310 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-08-22 19:48:58,317 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-22 19:48:58,318 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-22 19:48:58,319 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-22 19:48:58,319 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 19:48:58,328 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-22 19:48:58,329 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-22 19:48:58,330 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-22 19:48:58,330 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-22 19:48:58,330 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-22 19:48:58,331 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-22 19:48:58,331 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-22 19:48:58,331 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-22 19:48:58,331 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-22 19:48:58,331 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-22 19:48:58,332 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-22 19:48:58,332 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-22 19:48:58,332 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-22 19:48:58,332 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-22 19:48:58,332 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-22 19:48:58,333 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-08-22 19:48:58,333 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-22 19:48:58,333 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-22 19:48:58,333 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-22 19:48:58,333 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-22 19:48:58,334 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-08-22 19:48:58,334 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-22 19:48:58,334 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-08-22 19:48:58,637 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-22 19:48:58,649 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-22 19:48:58,653 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-22 19:48:58,654 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-22 19:48:58,654 INFO L275 PluginConnector]: CDTParser initialized [2020-08-22 19:48:58,655 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-industry-pattern/mod3.c [2020-08-22 19:48:58,732 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/58f665149/25b3783651494be8aa39c42660b1c4ac/FLAGe79d64365 [2020-08-22 19:48:59,244 INFO L306 CDTParser]: Found 1 translation units. [2020-08-22 19:48:59,245 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-industry-pattern/mod3.c [2020-08-22 19:48:59,255 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/58f665149/25b3783651494be8aa39c42660b1c4ac/FLAGe79d64365 [2020-08-22 19:48:59,629 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/58f665149/25b3783651494be8aa39c42660b1c4ac [2020-08-22 19:48:59,639 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-22 19:48:59,641 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-22 19:48:59,642 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-22 19:48:59,642 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-22 19:48:59,646 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-22 19:48:59,647 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 07:48:59" (1/1) ... [2020-08-22 19:48:59,650 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@256ae262 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:48:59, skipping insertion in model container [2020-08-22 19:48:59,650 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 07:48:59" (1/1) ... [2020-08-22 19:48:59,658 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-22 19:48:59,680 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-22 19:48:59,885 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 19:48:59,890 INFO L203 MainTranslator]: Completed pre-run [2020-08-22 19:48:59,907 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 19:48:59,922 INFO L208 MainTranslator]: Completed translation [2020-08-22 19:48:59,923 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:48:59 WrapperNode [2020-08-22 19:48:59,923 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-22 19:48:59,923 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-22 19:48:59,924 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-22 19:48:59,924 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-22 19:48:59,934 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:48:59" (1/1) ... [2020-08-22 19:48:59,934 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:48:59" (1/1) ... [2020-08-22 19:49:00,027 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:48:59" (1/1) ... [2020-08-22 19:49:00,027 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:48:59" (1/1) ... [2020-08-22 19:49:00,031 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:48:59" (1/1) ... [2020-08-22 19:49:00,037 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:48:59" (1/1) ... [2020-08-22 19:49:00,038 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:48:59" (1/1) ... [2020-08-22 19:49:00,040 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-22 19:49:00,040 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-22 19:49:00,040 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-22 19:49:00,040 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-22 19:49:00,041 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:48:59" (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 19:49:00,102 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-22 19:49:00,103 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-22 19:49:00,103 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-08-22 19:49:00,103 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-22 19:49:00,103 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-22 19:49:00,103 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-22 19:49:00,103 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-08-22 19:49:00,104 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-22 19:49:00,104 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-22 19:49:00,104 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-22 19:49:00,314 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-22 19:49:00,314 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-08-22 19:49:00,319 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 07:49:00 BoogieIcfgContainer [2020-08-22 19:49:00,319 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-22 19:49:00,321 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-22 19:49:00,321 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-22 19:49:00,324 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-22 19:49:00,325 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.08 07:48:59" (1/3) ... [2020-08-22 19:49:00,326 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43bfd76c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 07:49:00, skipping insertion in model container [2020-08-22 19:49:00,326 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:48:59" (2/3) ... [2020-08-22 19:49:00,326 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43bfd76c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 07:49:00, skipping insertion in model container [2020-08-22 19:49:00,326 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 07:49:00" (3/3) ... [2020-08-22 19:49:00,328 INFO L109 eAbstractionObserver]: Analyzing ICFG mod3.c [2020-08-22 19:49:00,340 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-22 19:49:00,351 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-22 19:49:00,366 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-22 19:49:00,389 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-22 19:49:00,390 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-22 19:49:00,390 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-08-22 19:49:00,390 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-22 19:49:00,390 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-22 19:49:00,390 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-22 19:49:00,391 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-22 19:49:00,391 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-22 19:49:00,406 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states. [2020-08-22 19:49:00,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-08-22 19:49:00,418 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 19:49:00,419 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 19:49:00,419 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 19:49:00,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 19:49:00,424 INFO L82 PathProgramCache]: Analyzing trace with hash 1436140310, now seen corresponding path program 1 times [2020-08-22 19:49:00,432 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 19:49:00,433 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [824134659] [2020-08-22 19:49:00,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 19:49:00,489 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 19:49:00,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:49:00,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 19:49:00,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:49:00,550 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 19:49:00,552 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [824134659] [2020-08-22 19:49:00,554 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 19:49:00,555 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-08-22 19:49:00,555 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [920905238] [2020-08-22 19:49:00,560 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-08-22 19:49:00,561 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 19:49:00,572 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-08-22 19:49:00,573 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-08-22 19:49:00,575 INFO L87 Difference]: Start difference. First operand 37 states. Second operand 2 states. [2020-08-22 19:49:00,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 19:49:00,600 INFO L93 Difference]: Finished difference Result 50 states and 58 transitions. [2020-08-22 19:49:00,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-08-22 19:49:00,601 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 12 [2020-08-22 19:49:00,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 19:49:00,609 INFO L225 Difference]: With dead ends: 50 [2020-08-22 19:49:00,610 INFO L226 Difference]: Without dead ends: 30 [2020-08-22 19:49:00,614 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-08-22 19:49:00,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-08-22 19:49:00,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2020-08-22 19:49:00,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-08-22 19:49:00,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 33 transitions. [2020-08-22 19:49:00,657 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 33 transitions. Word has length 12 [2020-08-22 19:49:00,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 19:49:00,657 INFO L479 AbstractCegarLoop]: Abstraction has 30 states and 33 transitions. [2020-08-22 19:49:00,657 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-08-22 19:49:00,658 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 33 transitions. [2020-08-22 19:49:00,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-08-22 19:49:00,658 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 19:49:00,659 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 19:49:00,659 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-22 19:49:00,659 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 19:49:00,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 19:49:00,660 INFO L82 PathProgramCache]: Analyzing trace with hash -1309792647, now seen corresponding path program 1 times [2020-08-22 19:49:00,660 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 19:49:00,661 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2133829134] [2020-08-22 19:49:00,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 19:49:00,663 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 19:49:00,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:49:00,808 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 19:49:00,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:49:00,815 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 19:49:00,816 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2133829134] [2020-08-22 19:49:00,817 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 19:49:00,817 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-08-22 19:49:00,817 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1319456631] [2020-08-22 19:49:00,818 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-08-22 19:49:00,822 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 19:49:00,823 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-08-22 19:49:00,823 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-22 19:49:00,825 INFO L87 Difference]: Start difference. First operand 30 states and 33 transitions. Second operand 3 states. [2020-08-22 19:49:00,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 19:49:00,896 INFO L93 Difference]: Finished difference Result 54 states and 60 transitions. [2020-08-22 19:49:00,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-08-22 19:49:00,897 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 14 [2020-08-22 19:49:00,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 19:49:00,899 INFO L225 Difference]: With dead ends: 54 [2020-08-22 19:49:00,899 INFO L226 Difference]: Without dead ends: 47 [2020-08-22 19:49:00,901 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-22 19:49:00,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2020-08-22 19:49:00,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 32. [2020-08-22 19:49:00,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2020-08-22 19:49:00,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 35 transitions. [2020-08-22 19:49:00,911 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 35 transitions. Word has length 14 [2020-08-22 19:49:00,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 19:49:00,911 INFO L479 AbstractCegarLoop]: Abstraction has 32 states and 35 transitions. [2020-08-22 19:49:00,912 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-08-22 19:49:00,912 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 35 transitions. [2020-08-22 19:49:00,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-08-22 19:49:00,913 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 19:49:00,913 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 19:49:00,914 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-22 19:49:00,914 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 19:49:00,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 19:49:00,914 INFO L82 PathProgramCache]: Analyzing trace with hash 1704587139, now seen corresponding path program 1 times [2020-08-22 19:49:00,914 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 19:49:00,915 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [878058616] [2020-08-22 19:49:00,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 19:49:00,937 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 19:49:01,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:49:01,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 19:49:01,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:49:01,434 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 19:49:01,435 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [878058616] [2020-08-22 19:49:01,435 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 19:49:01,436 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-08-22 19:49:01,436 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1878381644] [2020-08-22 19:49:01,436 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-22 19:49:01,437 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 19:49:01,437 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-22 19:49:01,437 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-08-22 19:49:01,438 INFO L87 Difference]: Start difference. First operand 32 states and 35 transitions. Second operand 6 states. [2020-08-22 19:49:07,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 19:49:07,825 INFO L93 Difference]: Finished difference Result 74 states and 84 transitions. [2020-08-22 19:49:07,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-08-22 19:49:07,826 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 20 [2020-08-22 19:49:07,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 19:49:07,827 INFO L225 Difference]: With dead ends: 74 [2020-08-22 19:49:07,828 INFO L226 Difference]: Without dead ends: 43 [2020-08-22 19:49:07,829 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-08-22 19:49:07,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2020-08-22 19:49:07,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 37. [2020-08-22 19:49:07,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2020-08-22 19:49:07,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 40 transitions. [2020-08-22 19:49:07,840 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 40 transitions. Word has length 20 [2020-08-22 19:49:07,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 19:49:07,840 INFO L479 AbstractCegarLoop]: Abstraction has 37 states and 40 transitions. [2020-08-22 19:49:07,840 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-22 19:49:07,841 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 40 transitions. [2020-08-22 19:49:07,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-08-22 19:49:07,842 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 19:49:07,842 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 19:49:07,842 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-22 19:49:07,843 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 19:49:07,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 19:49:07,843 INFO L82 PathProgramCache]: Analyzing trace with hash -110349398, now seen corresponding path program 1 times [2020-08-22 19:49:07,845 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 19:49:07,845 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [637757890] [2020-08-22 19:49:07,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 19:49:07,861 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 19:49:07,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:49:08,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 19:49:08,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:49:08,151 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 19:49:08,151 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [637757890] [2020-08-22 19:49:08,152 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 19:49:08,152 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-08-22 19:49:08,152 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1973614590] [2020-08-22 19:49:08,153 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-22 19:49:08,153 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 19:49:08,153 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-22 19:49:08,154 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-08-22 19:49:08,154 INFO L87 Difference]: Start difference. First operand 37 states and 40 transitions. Second operand 6 states. [2020-08-22 19:49:12,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 19:49:12,479 INFO L93 Difference]: Finished difference Result 75 states and 85 transitions. [2020-08-22 19:49:12,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-08-22 19:49:12,482 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 21 [2020-08-22 19:49:12,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 19:49:12,482 INFO L225 Difference]: With dead ends: 75 [2020-08-22 19:49:12,482 INFO L226 Difference]: Without dead ends: 0 [2020-08-22 19:49:12,484 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-08-22 19:49:12,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-08-22 19:49:12,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-08-22 19:49:12,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-08-22 19:49:12,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-08-22 19:49:12,485 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 21 [2020-08-22 19:49:12,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 19:49:12,485 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-08-22 19:49:12,485 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-22 19:49:12,485 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-08-22 19:49:12,486 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-08-22 19:49:12,486 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-22 19:49:12,488 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-08-22 19:49:12,758 INFO L271 CegarLoopResult]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2020-08-22 19:49:12,758 INFO L271 CegarLoopResult]: At program point ULTIMATE.initEXIT(line -1) the Hoare annotation is: true [2020-08-22 19:49:12,759 INFO L271 CegarLoopResult]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2020-08-22 19:49:12,759 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-08-22 19:49:12,759 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-08-22 19:49:12,759 INFO L271 CegarLoopResult]: At program point ULTIMATE.startFINAL(line -1) the Hoare annotation is: true [2020-08-22 19:49:12,759 INFO L264 CegarLoopResult]: At program point L31(line 31) the Hoare annotation is: (<= main_~x~0 (let ((.cse0 (div main_~x~0 4294967296))) (let ((.cse2 (* .cse0 (- 4294967296)))) (let ((.cse1 (div (+ main_~x~0 .cse2) 3))) (+ (* 4294967296 .cse0) (* 3 .cse1) (* 4294967296 (div (+ main_~x~0 .cse2 (* .cse1 (- 3))) 4294967296))))))) [2020-08-22 19:49:12,760 INFO L271 CegarLoopResult]: At program point mainEXIT(lines 12 33) the Hoare annotation is: true [2020-08-22 19:49:12,760 INFO L271 CegarLoopResult]: At program point L23(line 23) the Hoare annotation is: true [2020-08-22 19:49:12,760 INFO L271 CegarLoopResult]: At program point L23-1(lines 23 26) the Hoare annotation is: true [2020-08-22 19:49:12,761 INFO L264 CegarLoopResult]: At program point L21(line 21) the Hoare annotation is: (<= (let ((.cse0 (div main_~x~0 4294967296))) (let ((.cse2 (* .cse0 (- 4294967296)))) (let ((.cse1 (div (+ main_~x~0 .cse2) 3))) (+ (* 6148914689804861440 .cse0) (* 4294967295 .cse1) (* 6148914688373205674 (div (+ main_~x~0 .cse2 (* .cse1 (- 3))) 4294967296)) 2863311530)))) (* 1431655765 main_~x~0)) [2020-08-22 19:49:12,762 INFO L271 CegarLoopResult]: At program point L23-2(line 23) the Hoare annotation is: true [2020-08-22 19:49:12,763 INFO L264 CegarLoopResult]: At program point L21-1(line 21) the Hoare annotation is: (<= main_~x~0 (let ((.cse0 (div main_~x~0 4294967296))) (let ((.cse2 (* .cse0 (- 4294967296)))) (let ((.cse1 (div (+ main_~x~0 .cse2) 3))) (+ (* 4294967296 .cse0) (* 3 .cse1) (* 4294967296 (div (+ main_~x~0 .cse2 (* .cse1 (- 3))) 4294967296))))))) [2020-08-22 19:49:12,763 INFO L271 CegarLoopResult]: At program point L23-4(line 23) the Hoare annotation is: true [2020-08-22 19:49:12,764 INFO L264 CegarLoopResult]: At program point L23-5(lines 16 29) the Hoare annotation is: (or (and (<= (div main_~y~0 4294967296) 0) (<= 1 main_~y~0)) (<= main_~x~0 (let ((.cse0 (div main_~x~0 4294967296))) (let ((.cse2 (* .cse0 (- 4294967296)))) (let ((.cse1 (div (+ main_~x~0 .cse2) 3))) (+ (* 4294967296 .cse0) (* 3 .cse1) (* 4294967296 (div (+ main_~x~0 .cse2 (* .cse1 (- 3))) 4294967296)))))))) [2020-08-22 19:49:12,764 INFO L271 CegarLoopResult]: At program point L17(lines 17 28) the Hoare annotation is: true [2020-08-22 19:49:12,764 INFO L271 CegarLoopResult]: At program point mainFINAL(lines 12 33) the Hoare annotation is: true [2020-08-22 19:49:12,764 INFO L271 CegarLoopResult]: At program point L30(lines 30 31) the Hoare annotation is: true [2020-08-22 19:49:12,764 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 12 33) the Hoare annotation is: true [2020-08-22 19:49:12,765 INFO L271 CegarLoopResult]: At program point L26(line 26) the Hoare annotation is: true [2020-08-22 19:49:12,765 INFO L271 CegarLoopResult]: At program point L26-1(line 26) the Hoare annotation is: true [2020-08-22 19:49:12,765 INFO L271 CegarLoopResult]: At program point L24(line 24) the Hoare annotation is: true [2020-08-22 19:49:12,765 INFO L271 CegarLoopResult]: At program point L24-1(line 24) the Hoare annotation is: true [2020-08-22 19:49:12,765 INFO L271 CegarLoopResult]: At program point L20(lines 20 27) the Hoare annotation is: true [2020-08-22 19:49:12,769 INFO L264 CegarLoopResult]: At program point L18(line 18) the Hoare annotation is: (let ((.cse0 (div main_~x~0 4294967296))) (let ((.cse3 (* .cse0 (- 4294967296)))) (let ((.cse1 (div (+ main_~x~0 .cse3) 3))) (let ((.cse2 (div (+ main_~x~0 .cse3 (* .cse1 (- 3))) 4294967296))) (and (<= (+ (* 6148914689804861440 .cse0) (* 4294967295 .cse1) (* 6148914688373205674 .cse2) 1431655765) (* 1431655765 main_~x~0)) (<= main_~x~0 (+ (* 4294967296 .cse0) (* 3 .cse1) (* 4294967296 .cse2) 1))))))) [2020-08-22 19:49:12,769 INFO L264 CegarLoopResult]: At program point L18-1(line 18) the Hoare annotation is: (<= main_~x~0 (let ((.cse0 (div main_~x~0 4294967296))) (let ((.cse2 (* .cse0 (- 4294967296)))) (let ((.cse1 (div (+ main_~x~0 .cse2) 3))) (+ (* 4294967296 .cse0) (* 3 .cse1) (* 4294967296 (div (+ main_~x~0 .cse2 (* .cse1 (- 3))) 4294967296))))))) [2020-08-22 19:49:12,770 INFO L264 CegarLoopResult]: At program point L16-1(lines 16 29) the Hoare annotation is: (or (and (<= (div main_~y~0 4294967296) 0) (<= 1 main_~y~0)) (<= main_~x~0 (let ((.cse0 (div main_~x~0 4294967296))) (let ((.cse2 (* .cse0 (- 4294967296)))) (let ((.cse1 (div (+ main_~x~0 .cse2) 3))) (+ (* 4294967296 .cse0) (* 3 .cse1) (* 4294967296 (div (+ main_~x~0 .cse2 (* .cse1 (- 3))) 4294967296)))))))) [2020-08-22 19:49:12,770 INFO L271 CegarLoopResult]: At program point L14(line 14) the Hoare annotation is: true [2020-08-22 19:49:12,771 INFO L264 CegarLoopResult]: At program point L16-2(line 16) the Hoare annotation is: (or (and (<= (div main_~y~0 4294967296) 0) (<= 1 main_~y~0)) (<= main_~x~0 (let ((.cse0 (div main_~x~0 4294967296))) (let ((.cse2 (* .cse0 (- 4294967296)))) (let ((.cse1 (div (+ main_~x~0 .cse2) 3))) (+ (* 4294967296 .cse0) (* 3 .cse1) (* 4294967296 (div (+ main_~x~0 .cse2 (* .cse1 (- 3))) 4294967296)))))))) [2020-08-22 19:49:12,771 INFO L271 CegarLoopResult]: At program point L16-4(line 16) the Hoare annotation is: true [2020-08-22 19:49:12,772 INFO L264 CegarLoopResult]: At program point L16-5(lines 12 33) the Hoare annotation is: (or (and (<= (div main_~y~0 4294967296) 0) (<= 1 main_~y~0)) (<= main_~x~0 (let ((.cse0 (div main_~x~0 4294967296))) (let ((.cse2 (* .cse0 (- 4294967296)))) (let ((.cse1 (div (+ main_~x~0 .cse2) 3))) (+ (* 4294967296 .cse0) (* 3 .cse1) (* 4294967296 (div (+ main_~x~0 .cse2 (* .cse1 (- 3))) 4294967296)))))))) [2020-08-22 19:49:12,772 INFO L271 CegarLoopResult]: At program point __VERIFIER_assertENTRY(lines 6 10) the Hoare annotation is: true [2020-08-22 19:49:12,772 INFO L271 CegarLoopResult]: At program point __VERIFIER_assertEXIT(lines 6 10) the Hoare annotation is: true [2020-08-22 19:49:12,772 INFO L264 CegarLoopResult]: At program point L8(line 8) the Hoare annotation is: (= |__VERIFIER_assert_#in~cond| 0) [2020-08-22 19:49:12,772 INFO L264 CegarLoopResult]: At program point L7(lines 7 8) the Hoare annotation is: (or (= |__VERIFIER_assert_#in~cond| 0) (not (= __VERIFIER_assert_~cond 0))) [2020-08-22 19:49:12,772 INFO L271 CegarLoopResult]: At program point L7-2(lines 6 10) the Hoare annotation is: true [2020-08-22 19:49:12,773 INFO L264 CegarLoopResult]: At program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 8) the Hoare annotation is: (= |__VERIFIER_assert_#in~cond| 0) [2020-08-22 19:49:12,806 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.08 07:49:12 BoogieIcfgContainer [2020-08-22 19:49:12,806 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-22 19:49:12,812 INFO L168 Benchmark]: Toolchain (without parser) took 13170.20 ms. Allocated memory was 144.7 MB in the beginning and 232.3 MB in the end (delta: 87.6 MB). Free memory was 102.0 MB in the beginning and 163.1 MB in the end (delta: -61.1 MB). Peak memory consumption was 26.5 MB. Max. memory is 7.1 GB. [2020-08-22 19:49:12,815 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 144.7 MB. Free memory was 120.4 MB in the beginning and 120.2 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2020-08-22 19:49:12,817 INFO L168 Benchmark]: CACSL2BoogieTranslator took 281.16 ms. Allocated memory is still 144.7 MB. Free memory was 101.8 MB in the beginning and 92.2 MB in the end (delta: 9.7 MB). Peak memory consumption was 9.7 MB. Max. memory is 7.1 GB. [2020-08-22 19:49:12,818 INFO L168 Benchmark]: Boogie Preprocessor took 116.32 ms. Allocated memory was 144.7 MB in the beginning and 200.8 MB in the end (delta: 56.1 MB). Free memory was 92.2 MB in the beginning and 178.4 MB in the end (delta: -86.2 MB). Peak memory consumption was 10.3 MB. Max. memory is 7.1 GB. [2020-08-22 19:49:12,822 INFO L168 Benchmark]: RCFGBuilder took 279.43 ms. Allocated memory is still 200.8 MB. Free memory was 178.4 MB in the beginning and 165.0 MB in the end (delta: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 7.1 GB. [2020-08-22 19:49:12,823 INFO L168 Benchmark]: TraceAbstraction took 12487.83 ms. Allocated memory was 200.8 MB in the beginning and 232.3 MB in the end (delta: 31.5 MB). Free memory was 165.0 MB in the beginning and 163.1 MB in the end (delta: 1.9 MB). Peak memory consumption was 33.4 MB. Max. memory is 7.1 GB. [2020-08-22 19:49:12,832 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 144.7 MB. Free memory was 120.4 MB in the beginning and 120.2 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 281.16 ms. Allocated memory is still 144.7 MB. Free memory was 101.8 MB in the beginning and 92.2 MB in the end (delta: 9.7 MB). Peak memory consumption was 9.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 116.32 ms. Allocated memory was 144.7 MB in the beginning and 200.8 MB in the end (delta: 56.1 MB). Free memory was 92.2 MB in the beginning and 178.4 MB in the end (delta: -86.2 MB). Peak memory consumption was 10.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 279.43 ms. Allocated memory is still 200.8 MB. Free memory was 178.4 MB in the beginning and 165.0 MB in the end (delta: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 12487.83 ms. Allocated memory was 200.8 MB in the beginning and 232.3 MB in the end (delta: 31.5 MB). Free memory was 165.0 MB in the beginning and 163.1 MB in the end (delta: 1.9 MB). Peak memory consumption was 33.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 8]: 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: 16]: Loop Invariant Derived loop invariant: (y / 4294967296 <= 0 && 1 <= y) || x <= 4294967296 * (x / 4294967296) + 3 * ((x + x / 4294967296 * -4294967296) / 3) + 4294967296 * ((x + x / 4294967296 * -4294967296 + (x + x / 4294967296 * -4294967296) / 3 * -3) / 4294967296) - ProcedureContractResult [Line: 12]: Procedure Contract for main Derived contract for procedure main: 1 - ProcedureContractResult [Line: 6]: Procedure Contract for __VERIFIER_assert Derived contract for procedure __VERIFIER_assert: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 37 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 12.1s, OverallIterations: 4, TraceHistogramMax: 2, AutomataDifference: 10.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 150 SDtfs, 35 SDslu, 275 SDs, 0 SdLazy, 82 SolverSat, 8 SolverUnsat, 5 SolverUnknown, 0 SolverNotchecked, 10.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 28 GetRequests, 16 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=37occurred 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, 4 MinimizatonAttempts, 21 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 37 LocationsWithAnnotation, 67 PreInvPairs, 115 NumberOfFragments, 497 HoareAnnotationTreeSize, 67 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 37 FomulaSimplificationsInter, 5 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: No data available, 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...