/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/loops-crafted-1/sumt2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-72570d3 [2020-08-22 19:50:01,382 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-22 19:50:01,385 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-22 19:50:01,430 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2020-08-22 19:50:01,440 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-22 19:50:01,441 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-22 19:50:01,442 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-22 19:50:01,444 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-22 19:50:01,445 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-22 19:50:01,446 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-22 19:50:01,448 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-22 19:50:01,450 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-22 19:50:01,451 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-22 19:50:01,453 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-22 19:50:01,454 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-22 19:50:01,455 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-22 19:50:01,458 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-08-22 19:50:01,466 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-22 19:50:01,467 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-22 19:50:01,468 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-22 19:50:01,469 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 19:50:01,478 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-22 19:50:01,479 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-22 19:50:01,480 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-22 19:50:01,481 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-22 19:50:01,481 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-22 19:50:01,481 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-22 19:50:01,481 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-22 19:50:01,481 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-22 19:50:01,482 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-22 19:50:01,482 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-22 19:50:01,482 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-22 19:50:01,482 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-22 19:50:01,482 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-22 19:50:01,482 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-22 19:50:01,483 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-22 19:50:01,483 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-08-22 19:50:01,483 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-22 19:50:01,483 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-22 19:50:01,484 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-22 19:50:01,484 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-22 19:50:01,484 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-08-22 19:50:01,484 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-22 19:50:01,484 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-08-22 19:50:01,831 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-22 19:50:01,850 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-22 19:50:01,853 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-22 19:50:01,855 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-22 19:50:01,856 INFO L275 PluginConnector]: CDTParser initialized [2020-08-22 19:50:01,857 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops-crafted-1/sumt2.c [2020-08-22 19:50:01,929 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/27c0508f8/d299180051aa4b448d2ec6fb95eecad3/FLAG7b244827d [2020-08-22 19:50:02,432 INFO L306 CDTParser]: Found 1 translation units. [2020-08-22 19:50:02,433 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops-crafted-1/sumt2.c [2020-08-22 19:50:02,440 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/27c0508f8/d299180051aa4b448d2ec6fb95eecad3/FLAG7b244827d [2020-08-22 19:50:02,757 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/27c0508f8/d299180051aa4b448d2ec6fb95eecad3 [2020-08-22 19:50:02,769 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-22 19:50:02,771 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-22 19:50:02,772 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-22 19:50:02,772 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-22 19:50:02,776 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-22 19:50:02,778 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 07:50:02" (1/1) ... [2020-08-22 19:50:02,781 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@13482720 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:50:02, skipping insertion in model container [2020-08-22 19:50:02,781 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 07:50:02" (1/1) ... [2020-08-22 19:50:02,790 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-22 19:50:02,812 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-22 19:50:02,980 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 19:50:02,986 INFO L203 MainTranslator]: Completed pre-run [2020-08-22 19:50:03,006 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 19:50:03,024 INFO L208 MainTranslator]: Completed translation [2020-08-22 19:50:03,025 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:50:03 WrapperNode [2020-08-22 19:50:03,025 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-22 19:50:03,026 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-22 19:50:03,026 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-22 19:50:03,026 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-22 19:50:03,042 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:50:03" (1/1) ... [2020-08-22 19:50:03,043 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:50:03" (1/1) ... [2020-08-22 19:50:03,145 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:50:03" (1/1) ... [2020-08-22 19:50:03,145 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:50:03" (1/1) ... [2020-08-22 19:50:03,156 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:50:03" (1/1) ... [2020-08-22 19:50:03,161 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:50:03" (1/1) ... [2020-08-22 19:50:03,162 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:50:03" (1/1) ... [2020-08-22 19:50:03,163 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-22 19:50:03,164 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-22 19:50:03,164 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-22 19:50:03,164 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-22 19:50:03,165 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:50:03" (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 19:50:03,228 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-22 19:50:03,229 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-22 19:50:03,229 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-08-22 19:50:03,229 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-08-22 19:50:03,229 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-22 19:50:03,229 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-22 19:50:03,229 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-08-22 19:50:03,229 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-08-22 19:50:03,229 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-08-22 19:50:03,230 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-22 19:50:03,230 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-22 19:50:03,230 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-22 19:50:03,230 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-22 19:50:03,477 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-22 19:50:03,478 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-08-22 19:50:03,493 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 07:50:03 BoogieIcfgContainer [2020-08-22 19:50:03,493 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-22 19:50:03,504 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-22 19:50:03,504 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-22 19:50:03,517 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-22 19:50:03,517 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.08 07:50:02" (1/3) ... [2020-08-22 19:50:03,518 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@798655a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 07:50:03, skipping insertion in model container [2020-08-22 19:50:03,519 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:50:03" (2/3) ... [2020-08-22 19:50:03,519 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@798655a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 07:50:03, skipping insertion in model container [2020-08-22 19:50:03,519 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 07:50:03" (3/3) ... [2020-08-22 19:50:03,527 INFO L109 eAbstractionObserver]: Analyzing ICFG sumt2.c [2020-08-22 19:50:03,540 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-22 19:50:03,549 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-22 19:50:03,566 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-22 19:50:03,602 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-22 19:50:03,605 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-22 19:50:03,605 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-08-22 19:50:03,605 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-22 19:50:03,606 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-22 19:50:03,606 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-22 19:50:03,606 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-22 19:50:03,607 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-22 19:50:03,630 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states. [2020-08-22 19:50:03,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-08-22 19:50:03,640 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 19:50:03,641 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 19:50:03,642 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 19:50:03,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 19:50:03,648 INFO L82 PathProgramCache]: Analyzing trace with hash 960346385, now seen corresponding path program 1 times [2020-08-22 19:50:03,657 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 19:50:03,658 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [831346080] [2020-08-22 19:50:03,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 19:50:03,724 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 19:50:03,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:50:03,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 19:50:03,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:50:03,830 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 19:50:03,832 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [831346080] [2020-08-22 19:50:03,834 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 19:50:03,835 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-08-22 19:50:03,836 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [118306173] [2020-08-22 19:50:03,841 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-08-22 19:50:03,841 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 19:50:03,856 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-08-22 19:50:03,857 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-22 19:50:03,860 INFO L87 Difference]: Start difference. First operand 34 states. Second operand 3 states. [2020-08-22 19:50:03,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 19:50:03,979 INFO L93 Difference]: Finished difference Result 46 states and 51 transitions. [2020-08-22 19:50:03,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-08-22 19:50:03,981 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 21 [2020-08-22 19:50:03,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 19:50:03,991 INFO L225 Difference]: With dead ends: 46 [2020-08-22 19:50:03,991 INFO L226 Difference]: Without dead ends: 26 [2020-08-22 19:50:03,996 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 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 19:50:04,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2020-08-22 19:50:04,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2020-08-22 19:50:04,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2020-08-22 19:50:04,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 27 transitions. [2020-08-22 19:50:04,036 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 27 transitions. Word has length 21 [2020-08-22 19:50:04,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 19:50:04,037 INFO L479 AbstractCegarLoop]: Abstraction has 26 states and 27 transitions. [2020-08-22 19:50:04,037 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-08-22 19:50:04,038 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 27 transitions. [2020-08-22 19:50:04,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-08-22 19:50:04,039 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 19:50:04,039 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 19:50:04,040 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-22 19:50:04,040 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 19:50:04,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 19:50:04,041 INFO L82 PathProgramCache]: Analyzing trace with hash 948340612, now seen corresponding path program 1 times [2020-08-22 19:50:04,041 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 19:50:04,041 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [740097082] [2020-08-22 19:50:04,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 19:50:04,044 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 19:50:04,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:50:04,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 19:50:04,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:50:04,504 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 19:50:04,505 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [740097082] [2020-08-22 19:50:04,505 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 19:50:04,505 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-08-22 19:50:04,506 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [586059394] [2020-08-22 19:50:04,507 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-22 19:50:04,507 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 19:50:04,507 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-22 19:50:04,508 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-08-22 19:50:04,508 INFO L87 Difference]: Start difference. First operand 26 states and 27 transitions. Second operand 9 states. [2020-08-22 19:50:06,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 19:50:06,908 INFO L93 Difference]: Finished difference Result 34 states and 36 transitions. [2020-08-22 19:50:06,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-08-22 19:50:06,909 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 21 [2020-08-22 19:50:06,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 19:50:06,910 INFO L225 Difference]: With dead ends: 34 [2020-08-22 19:50:06,910 INFO L226 Difference]: Without dead ends: 29 [2020-08-22 19:50:06,912 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2020-08-22 19:50:06,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2020-08-22 19:50:06,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 27. [2020-08-22 19:50:06,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2020-08-22 19:50:06,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 28 transitions. [2020-08-22 19:50:06,923 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 28 transitions. Word has length 21 [2020-08-22 19:50:06,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 19:50:06,924 INFO L479 AbstractCegarLoop]: Abstraction has 27 states and 28 transitions. [2020-08-22 19:50:06,924 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-22 19:50:06,924 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 28 transitions. [2020-08-22 19:50:06,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-08-22 19:50:06,925 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 19:50:06,925 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 19:50:06,926 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-22 19:50:06,926 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 19:50:06,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 19:50:06,927 INFO L82 PathProgramCache]: Analyzing trace with hash 974616700, now seen corresponding path program 1 times [2020-08-22 19:50:06,927 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 19:50:06,927 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1828312490] [2020-08-22 19:50:06,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 19:50:06,951 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 19:50:07,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:50:07,649 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 19:50:07,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:50:07,696 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 19:50:07,696 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1828312490] [2020-08-22 19:50:07,697 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 19:50:07,697 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-08-22 19:50:07,697 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [357073102] [2020-08-22 19:50:07,698 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-08-22 19:50:07,698 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 19:50:07,698 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-08-22 19:50:07,699 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2020-08-22 19:50:07,699 INFO L87 Difference]: Start difference. First operand 27 states and 28 transitions. Second operand 14 states. [2020-08-22 19:50:08,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 19:50:08,296 INFO L93 Difference]: Finished difference Result 47 states and 52 transitions. [2020-08-22 19:50:08,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-08-22 19:50:08,297 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 25 [2020-08-22 19:50:08,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 19:50:08,299 INFO L225 Difference]: With dead ends: 47 [2020-08-22 19:50:08,300 INFO L226 Difference]: Without dead ends: 34 [2020-08-22 19:50:08,301 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=114, Invalid=392, Unknown=0, NotChecked=0, Total=506 [2020-08-22 19:50:08,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2020-08-22 19:50:08,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 31. [2020-08-22 19:50:08,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2020-08-22 19:50:08,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 32 transitions. [2020-08-22 19:50:08,315 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 32 transitions. Word has length 25 [2020-08-22 19:50:08,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 19:50:08,316 INFO L479 AbstractCegarLoop]: Abstraction has 31 states and 32 transitions. [2020-08-22 19:50:08,316 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-08-22 19:50:08,316 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 32 transitions. [2020-08-22 19:50:08,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-08-22 19:50:08,317 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 19:50:08,318 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 19:50:08,318 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-22 19:50:08,318 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 19:50:08,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 19:50:08,319 INFO L82 PathProgramCache]: Analyzing trace with hash 928460148, now seen corresponding path program 2 times [2020-08-22 19:50:08,319 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 19:50:08,320 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [409802118] [2020-08-22 19:50:08,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 19:50:08,328 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 19:50:08,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:50:08,394 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 19:50:08,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:50:08,401 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 19:50:08,401 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [409802118] [2020-08-22 19:50:08,402 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 19:50:08,402 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-08-22 19:50:08,403 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [949448694] [2020-08-22 19:50:08,403 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-22 19:50:08,403 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 19:50:08,404 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-22 19:50:08,404 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-08-22 19:50:08,405 INFO L87 Difference]: Start difference. First operand 31 states and 32 transitions. Second operand 5 states. [2020-08-22 19:50:08,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 19:50:08,521 INFO L93 Difference]: Finished difference Result 44 states and 47 transitions. [2020-08-22 19:50:08,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-08-22 19:50:08,522 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 29 [2020-08-22 19:50:08,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 19:50:08,523 INFO L225 Difference]: With dead ends: 44 [2020-08-22 19:50:08,523 INFO L226 Difference]: Without dead ends: 34 [2020-08-22 19:50:08,524 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-08-22 19:50:08,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2020-08-22 19:50:08,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 32. [2020-08-22 19:50:08,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2020-08-22 19:50:08,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 33 transitions. [2020-08-22 19:50:08,535 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 33 transitions. Word has length 29 [2020-08-22 19:50:08,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 19:50:08,536 INFO L479 AbstractCegarLoop]: Abstraction has 32 states and 33 transitions. [2020-08-22 19:50:08,536 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-22 19:50:08,536 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 33 transitions. [2020-08-22 19:50:08,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-08-22 19:50:08,537 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 19:50:08,538 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 19:50:08,538 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-22 19:50:08,538 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 19:50:08,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 19:50:08,539 INFO L82 PathProgramCache]: Analyzing trace with hash 229467604, now seen corresponding path program 1 times [2020-08-22 19:50:08,539 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 19:50:08,539 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [24688507] [2020-08-22 19:50:08,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 19:50:08,544 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 19:50:08,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:50:08,850 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 25 [2020-08-22 19:50:08,997 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 19:50:08,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:50:09,006 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 19:50:09,007 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [24688507] [2020-08-22 19:50:09,007 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 19:50:09,008 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-08-22 19:50:09,008 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [788866741] [2020-08-22 19:50:09,008 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-08-22 19:50:09,009 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 19:50:09,009 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-08-22 19:50:09,009 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2020-08-22 19:50:09,010 INFO L87 Difference]: Start difference. First operand 32 states and 33 transitions. Second operand 12 states. [2020-08-22 19:50:09,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 19:50:09,369 INFO L93 Difference]: Finished difference Result 32 states and 33 transitions. [2020-08-22 19:50:09,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-08-22 19:50:09,371 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 29 [2020-08-22 19:50:09,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 19:50:09,371 INFO L225 Difference]: With dead ends: 32 [2020-08-22 19:50:09,371 INFO L226 Difference]: Without dead ends: 0 [2020-08-22 19:50:09,373 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=81, Invalid=299, Unknown=0, NotChecked=0, Total=380 [2020-08-22 19:50:09,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-08-22 19:50:09,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-08-22 19:50:09,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-08-22 19:50:09,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-08-22 19:50:09,375 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 29 [2020-08-22 19:50:09,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 19:50:09,375 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-08-22 19:50:09,375 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-08-22 19:50:09,375 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-08-22 19:50:09,375 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-08-22 19:50:09,376 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-22 19:50:09,379 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-08-22 19:50:10,044 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 35 [2020-08-22 19:50:10,134 INFO L264 CegarLoopResult]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: (and (<= 20000001 ~SIZE~0) (<= ~SIZE~0 20000001)) [2020-08-22 19:50:10,134 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (= ~SIZE~0 |old(~SIZE~0)|) [2020-08-22 19:50:10,134 INFO L264 CegarLoopResult]: At program point ULTIMATE.initEXIT(line -1) the Hoare annotation is: (and (<= 20000001 ~SIZE~0) (<= ~SIZE~0 20000001)) [2020-08-22 19:50:10,134 INFO L271 CegarLoopResult]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2020-08-22 19:50:10,134 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (<= 20000001 ~SIZE~0) (<= ~SIZE~0 20000001)) [2020-08-22 19:50:10,135 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-08-22 19:50:10,135 INFO L271 CegarLoopResult]: At program point ULTIMATE.startFINAL(line -1) the Hoare annotation is: true [2020-08-22 19:50:10,135 INFO L268 CegarLoopResult]: For program point L4-3(lines 3 5) no Hoare annotation was computed. [2020-08-22 19:50:10,135 INFO L268 CegarLoopResult]: For program point assume_abort_if_notENTRY(lines 3 5) no Hoare annotation was computed. [2020-08-22 19:50:10,135 INFO L268 CegarLoopResult]: For program point L4(line 4) no Hoare annotation was computed. [2020-08-22 19:50:10,135 INFO L268 CegarLoopResult]: For program point L4-1(line 4) no Hoare annotation was computed. [2020-08-22 19:50:10,136 INFO L268 CegarLoopResult]: For program point assume_abort_if_notEXIT(lines 3 5) no Hoare annotation was computed. [2020-08-22 19:50:10,136 INFO L271 CegarLoopResult]: At program point L29(line 29) the Hoare annotation is: true [2020-08-22 19:50:10,136 INFO L271 CegarLoopResult]: At program point mainEXIT(lines 14 31) the Hoare annotation is: true [2020-08-22 19:50:10,136 INFO L264 CegarLoopResult]: At program point L23(lines 23 26) the Hoare annotation is: (or (not (<= ~SIZE~0 20000001)) (not (<= 20000001 ~SIZE~0)) (let ((.cse0 (+ main_~i~0 main_~j~0))) (and (<= main_~l~0 .cse0) (<= .cse0 main_~l~0) (<= (+ (* 4294967296 (div main_~n~0 4294967296)) main_~l~0 1) (+ main_~i~0 main_~j~0 main_~n~0))))) [2020-08-22 19:50:10,136 INFO L264 CegarLoopResult]: At program point L23-2(lines 23 26) the Hoare annotation is: (or (not (<= ~SIZE~0 20000001)) (let ((.cse1 (+ main_~l~0 1)) (.cse0 (+ main_~i~0 main_~j~0))) (and (<= (+ (* 4294967296 (div main_~n~0 4294967296)) main_~l~0 2) (+ main_~i~0 main_~j~0 main_~n~0)) (<= .cse0 .cse1) (<= .cse1 .cse0))) (not (<= 20000001 ~SIZE~0))) [2020-08-22 19:50:10,137 INFO L264 CegarLoopResult]: At program point L19(line 19) the Hoare annotation is: (or (and (<= 0 main_~i~0) (<= (div (+ main_~i~0 4294967295) 4294967296) 0) (<= main_~l~0 0) (<= 0 main_~l~0)) (not (<= ~SIZE~0 20000001)) (not (<= 20000001 ~SIZE~0))) [2020-08-22 19:50:10,137 INFO L264 CegarLoopResult]: At program point L21-2(lines 21 28) the Hoare annotation is: (let ((.cse1 (+ main_~i~0 main_~j~0))) (let ((.cse0 (<= main_~l~0 .cse1))) (or (not (<= ~SIZE~0 20000001)) (and (<= (* 4294967296 (div (+ main_~i~0 main_~j~0 4294967295) 4294967296)) main_~l~0) .cse0 (<= 0 main_~i~0) (<= (div (+ main_~i~0 4294967295) 4294967296) 0) (<= main_~l~0 0) (<= 0 main_~l~0)) (not (<= 20000001 ~SIZE~0)) (and .cse0 (<= .cse1 main_~l~0) (<= (+ (* 4294967296 (div main_~n~0 4294967296)) main_~l~0 1) (+ main_~i~0 main_~j~0 main_~n~0)))))) [2020-08-22 19:50:10,137 INFO L264 CegarLoopResult]: At program point L21-3(lines 21 28) the Hoare annotation is: (or (let ((.cse2 (div (+ main_~i~0 main_~j~0) 4294967296)) (.cse3 (div main_~l~0 4294967296))) (let ((.cse1 (* 4294967296 .cse3)) (.cse0 (+ (* 4294967296 .cse2) main_~l~0))) (and (< .cse0 (+ main_~i~0 main_~j~0 .cse1 1)) (< .cse2 (+ .cse3 1)) (<= (+ main_~i~0 main_~j~0 .cse1) .cse0)))) (not (<= ~SIZE~0 20000001)) (not (<= 20000001 ~SIZE~0))) [2020-08-22 19:50:10,137 INFO L264 CegarLoopResult]: At program point L17(line 17) the Hoare annotation is: (or (and (<= main_~l~0 0) (<= 0 main_~l~0)) (not (<= ~SIZE~0 20000001)) (not (<= 20000001 ~SIZE~0))) [2020-08-22 19:50:10,138 INFO L271 CegarLoopResult]: At program point L17-1(line 17) the Hoare annotation is: true [2020-08-22 19:50:10,138 INFO L271 CegarLoopResult]: At program point L15(line 15) the Hoare annotation is: true [2020-08-22 19:50:10,138 INFO L271 CegarLoopResult]: At program point L15-1(line 15) the Hoare annotation is: true [2020-08-22 19:50:10,138 INFO L271 CegarLoopResult]: At program point L15-2(line 15) the Hoare annotation is: true [2020-08-22 19:50:10,138 INFO L271 CegarLoopResult]: At program point mainFINAL(lines 14 31) the Hoare annotation is: true [2020-08-22 19:50:10,138 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 14 31) the Hoare annotation is: true [2020-08-22 19:50:10,139 INFO L264 CegarLoopResult]: At program point L26(line 26) the Hoare annotation is: (or (not (<= ~SIZE~0 20000001)) (not (<= 20000001 ~SIZE~0)) (let ((.cse0 (+ main_~i~0 main_~j~0))) (and (<= main_~l~0 .cse0) (<= .cse0 main_~l~0) (<= (+ (* 4294967296 (div main_~n~0 4294967296)) main_~l~0 1) (+ main_~i~0 main_~j~0 main_~n~0))))) [2020-08-22 19:50:10,139 INFO L264 CegarLoopResult]: At program point L24(line 24) the Hoare annotation is: (or (not (<= ~SIZE~0 20000001)) (not (<= 20000001 ~SIZE~0)) (let ((.cse0 (+ main_~i~0 main_~j~0))) (and (<= main_~l~0 .cse0) (<= .cse0 main_~l~0) (<= (+ (* 4294967296 (div main_~n~0 4294967296)) main_~l~0 1) (+ main_~i~0 main_~j~0 main_~n~0))))) [2020-08-22 19:50:10,139 INFO L264 CegarLoopResult]: At program point L20(line 20) the Hoare annotation is: (or (not (<= ~SIZE~0 20000001)) (and (<= (div (+ main_~i~0 main_~j~0 4294967295) 4294967296) 0) (<= 0 main_~i~0) (<= (div (+ main_~i~0 4294967295) 4294967296) 0) (<= main_~l~0 0) (<= 0 (+ main_~i~0 main_~j~0)) (<= 0 main_~l~0)) (not (<= 20000001 ~SIZE~0))) [2020-08-22 19:50:10,139 INFO L264 CegarLoopResult]: At program point L18(line 18) the Hoare annotation is: (or (and (<= main_~l~0 0) (<= 0 main_~l~0)) (not (<= ~SIZE~0 20000001)) (not (<= 20000001 ~SIZE~0))) [2020-08-22 19:50:10,140 INFO L264 CegarLoopResult]: At program point L16(line 16) the Hoare annotation is: (or (and (<= main_~l~0 0) (<= 0 main_~l~0)) (not (<= ~SIZE~0 20000001)) (not (<= 20000001 ~SIZE~0))) [2020-08-22 19:50:10,140 INFO L264 CegarLoopResult]: At program point L16-1(line 16) the Hoare annotation is: (or (and (<= main_~l~0 0) (<= 0 main_~l~0)) (not (<= ~SIZE~0 20000001)) (not (<= 20000001 ~SIZE~0))) [2020-08-22 19:50:10,140 INFO L264 CegarLoopResult]: At program point L16-2(line 16) the Hoare annotation is: (or (and (<= main_~l~0 0) (<= 0 main_~l~0)) (not (<= ~SIZE~0 20000001)) (not (<= 20000001 ~SIZE~0))) [2020-08-22 19:50:10,140 INFO L271 CegarLoopResult]: At program point __VERIFIER_assertENTRY(lines 6 11) the Hoare annotation is: true [2020-08-22 19:50:10,140 INFO L271 CegarLoopResult]: At program point __VERIFIER_assertEXIT(lines 6 11) the Hoare annotation is: true [2020-08-22 19:50:10,141 INFO L264 CegarLoopResult]: At program point L8(line 8) the Hoare annotation is: (= |__VERIFIER_assert_#in~cond| 0) [2020-08-22 19:50:10,141 INFO L264 CegarLoopResult]: At program point L7(lines 7 9) the Hoare annotation is: (or (= |__VERIFIER_assert_#in~cond| 0) (not (= __VERIFIER_assert_~cond 0))) [2020-08-22 19:50:10,141 INFO L271 CegarLoopResult]: At program point L7-2(lines 6 11) the Hoare annotation is: true [2020-08-22 19:50:10,141 INFO L264 CegarLoopResult]: At program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 8) the Hoare annotation is: (= |__VERIFIER_assert_#in~cond| 0) [2020-08-22 19:50:10,177 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.08 07:50:10 BoogieIcfgContainer [2020-08-22 19:50:10,178 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-22 19:50:10,184 INFO L168 Benchmark]: Toolchain (without parser) took 7409.38 ms. Allocated memory was 138.4 MB in the beginning and 246.9 MB in the end (delta: 108.5 MB). Free memory was 103.3 MB in the beginning and 168.7 MB in the end (delta: -65.4 MB). Peak memory consumption was 115.6 MB. Max. memory is 7.1 GB. [2020-08-22 19:50:10,186 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 138.4 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2020-08-22 19:50:10,188 INFO L168 Benchmark]: CACSL2BoogieTranslator took 253.29 ms. Allocated memory is still 138.4 MB. Free memory was 103.1 MB in the beginning and 93.1 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 7.1 GB. [2020-08-22 19:50:10,194 INFO L168 Benchmark]: Boogie Preprocessor took 137.68 ms. Allocated memory was 138.4 MB in the beginning and 202.9 MB in the end (delta: 64.5 MB). Free memory was 93.1 MB in the beginning and 181.6 MB in the end (delta: -88.5 MB). Peak memory consumption was 13.8 MB. Max. memory is 7.1 GB. [2020-08-22 19:50:10,196 INFO L168 Benchmark]: RCFGBuilder took 329.60 ms. Allocated memory is still 202.9 MB. Free memory was 181.0 MB in the beginning and 167.8 MB in the end (delta: 13.2 MB). Peak memory consumption was 13.2 MB. Max. memory is 7.1 GB. [2020-08-22 19:50:10,197 INFO L168 Benchmark]: TraceAbstraction took 6673.76 ms. Allocated memory was 202.9 MB in the beginning and 246.9 MB in the end (delta: 44.0 MB). Free memory was 167.1 MB in the beginning and 168.7 MB in the end (delta: -1.6 MB). Peak memory consumption was 114.9 MB. Max. memory is 7.1 GB. [2020-08-22 19:50:10,206 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 138.4 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 253.29 ms. Allocated memory is still 138.4 MB. Free memory was 103.1 MB in the beginning and 93.1 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 137.68 ms. Allocated memory was 138.4 MB in the beginning and 202.9 MB in the end (delta: 64.5 MB). Free memory was 93.1 MB in the beginning and 181.6 MB in the end (delta: -88.5 MB). Peak memory consumption was 13.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 329.60 ms. Allocated memory is still 202.9 MB. Free memory was 181.0 MB in the beginning and 167.8 MB in the end (delta: 13.2 MB). Peak memory consumption was 13.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 6673.76 ms. Allocated memory was 202.9 MB in the beginning and 246.9 MB in the end (delta: 44.0 MB). Free memory was 167.1 MB in the beginning and 168.7 MB in the end (delta: -1.6 MB). Peak memory consumption was 114.9 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: 21]: Loop Invariant Derived loop invariant: ((!(SIZE <= 20000001) || (((((4294967296 * ((i + j + 4294967295) / 4294967296) <= l && l <= i + j) && 0 <= i) && (i + 4294967295) / 4294967296 <= 0) && l <= 0) && 0 <= l)) || !(20000001 <= SIZE)) || ((l <= i + j && i + j <= l) && 4294967296 * (n / 4294967296) + l + 1 <= i + j + n) - ProcedureContractResult [Line: 14]: 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 5 procedures, 39 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 5.7s, OverallIterations: 5, TraceHistogramMax: 2, AutomataDifference: 3.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.7s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 109 SDtfs, 230 SDslu, 137 SDs, 0 SdLazy, 427 SolverSat, 46 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 2.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 76 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 118 ImplicationChecksByTransitivity, 1.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=34occurred 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, 5 MinimizatonAttempts, 7 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 34 LocationsWithAnnotation, 64 PreInvPairs, 93 NumberOfFragments, 456 HoareAnnotationTreeSize, 64 FomulaSimplifications, 1146 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 34 FomulaSimplificationsInter, 562 FormulaSimplificationTreeSizeReductionInter, 0.6s 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...