/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 0.1.25-3af5e1f [2020-09-04 17:51:36,002 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-04 17:51:36,008 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-04 17:51:36,070 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-04 17:51:36,071 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-04 17:51:36,086 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-04 17:51:36,087 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-04 17:51:36,092 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-04 17:51:36,096 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-04 17:51:36,099 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-04 17:51:36,100 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-04 17:51:36,103 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-04 17:51:36,104 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-04 17:51:36,108 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-04 17:51:36,112 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-04 17:51:36,113 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-04 17:51:36,116 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-04 17:51:36,118 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-04 17:51:36,121 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-04 17:51:36,131 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-04 17:51:36,134 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-04 17:51:36,135 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-04 17:51:36,138 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-04 17:51:36,139 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-04 17:51:36,143 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-09-04 17:51:36,154 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-04 17:51:36,155 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-04 17:51:36,158 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-04 17:51:36,159 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-09-04 17:51:36,174 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-04 17:51:36,174 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-04 17:51:36,176 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-04 17:51:36,177 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-04 17:51:36,177 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-04 17:51:36,177 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-04 17:51:36,177 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-04 17:51:36,177 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-04 17:51:36,178 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-04 17:51:36,178 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-04 17:51:36,178 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-04 17:51:36,178 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-04 17:51:36,178 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-04 17:51:36,178 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-04 17:51:36,179 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-04 17:51:36,179 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-09-04 17:51:36,179 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-04 17:51:36,179 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-04 17:51:36,180 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-04 17:51:36,180 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-04 17:51:36,180 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-09-04 17:51:36,180 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-04 17:51:36,180 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-09-04 17:51:36,667 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-04 17:51:36,693 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-04 17:51:36,704 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-04 17:51:36,707 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-04 17:51:36,708 INFO L275 PluginConnector]: CDTParser initialized [2020-09-04 17:51:36,709 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-industry-pattern/mod3.c [2020-09-04 17:51:36,831 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/82b7a4698/351695ed582c4335af31a0f8e54b09ea/FLAGc5471d69f [2020-09-04 17:51:37,553 INFO L306 CDTParser]: Found 1 translation units. [2020-09-04 17:51:37,554 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/loop-industry-pattern/mod3.c [2020-09-04 17:51:37,567 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/82b7a4698/351695ed582c4335af31a0f8e54b09ea/FLAGc5471d69f [2020-09-04 17:51:37,862 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/82b7a4698/351695ed582c4335af31a0f8e54b09ea [2020-09-04 17:51:37,881 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-04 17:51:37,887 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-04 17:51:37,891 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-04 17:51:37,891 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-04 17:51:37,899 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-04 17:51:37,900 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.09 05:51:37" (1/1) ... [2020-09-04 17:51:37,907 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@46088d73 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 05:51:37, skipping insertion in model container [2020-09-04 17:51:37,908 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.09 05:51:37" (1/1) ... [2020-09-04 17:51:37,922 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-04 17:51:37,953 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-04 17:51:38,198 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-04 17:51:38,206 INFO L203 MainTranslator]: Completed pre-run [2020-09-04 17:51:38,233 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-04 17:51:38,257 INFO L208 MainTranslator]: Completed translation [2020-09-04 17:51:38,258 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 05:51:38 WrapperNode [2020-09-04 17:51:38,258 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-04 17:51:38,260 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-04 17:51:38,261 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-04 17:51:38,261 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-04 17:51:38,281 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 05:51:38" (1/1) ... [2020-09-04 17:51:38,282 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 05:51:38" (1/1) ... [2020-09-04 17:51:38,288 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 05:51:38" (1/1) ... [2020-09-04 17:51:38,289 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 05:51:38" (1/1) ... [2020-09-04 17:51:38,294 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 05:51:38" (1/1) ... [2020-09-04 17:51:38,303 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 05:51:38" (1/1) ... [2020-09-04 17:51:38,305 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 05:51:38" (1/1) ... [2020-09-04 17:51:38,394 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-04 17:51:38,400 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-04 17:51:38,400 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-04 17:51:38,400 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-04 17:51:38,402 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 05:51:38" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-04 17:51:38,503 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-04 17:51:38,504 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-04 17:51:38,504 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-09-04 17:51:38,504 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-04 17:51:38,504 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-04 17:51:38,505 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-04 17:51:38,505 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-09-04 17:51:38,505 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-04 17:51:38,505 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-04 17:51:38,505 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-04 17:51:38,854 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-04 17:51:38,855 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-09-04 17:51:38,863 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.09 05:51:38 BoogieIcfgContainer [2020-09-04 17:51:38,863 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-04 17:51:38,865 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-04 17:51:38,865 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-04 17:51:38,871 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-04 17:51:38,872 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.09 05:51:37" (1/3) ... [2020-09-04 17:51:38,873 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ee9cc0c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.09 05:51:38, skipping insertion in model container [2020-09-04 17:51:38,874 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 05:51:38" (2/3) ... [2020-09-04 17:51:38,878 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ee9cc0c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.09 05:51:38, skipping insertion in model container [2020-09-04 17:51:38,879 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.09 05:51:38" (3/3) ... [2020-09-04 17:51:38,884 INFO L109 eAbstractionObserver]: Analyzing ICFG mod3.c [2020-09-04 17:51:38,922 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-04 17:51:38,947 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-04 17:51:38,977 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-04 17:51:39,015 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-04 17:51:39,015 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-04 17:51:39,015 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-09-04 17:51:39,015 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-04 17:51:39,016 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-04 17:51:39,016 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-04 17:51:39,016 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-04 17:51:39,016 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-04 17:51:39,036 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states. [2020-09-04 17:51:39,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-09-04 17:51:39,054 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 17:51:39,056 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 17:51:39,057 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 17:51:39,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 17:51:39,064 INFO L82 PathProgramCache]: Analyzing trace with hash 1436140310, now seen corresponding path program 1 times [2020-09-04 17:51:39,075 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 17:51:39,076 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2108015983] [2020-09-04 17:51:39,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 17:51:39,158 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 17:51:39,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:51:39,236 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 17:51:39,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:51:39,246 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 17:51:39,250 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2108015983] [2020-09-04 17:51:39,253 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 17:51:39,254 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-04 17:51:39,255 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [638632650] [2020-09-04 17:51:39,263 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-09-04 17:51:39,264 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 17:51:39,285 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-09-04 17:51:39,287 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-09-04 17:51:39,290 INFO L87 Difference]: Start difference. First operand 37 states. Second operand 2 states. [2020-09-04 17:51:39,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 17:51:39,333 INFO L93 Difference]: Finished difference Result 50 states and 58 transitions. [2020-09-04 17:51:39,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-09-04 17:51:39,336 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 12 [2020-09-04 17:51:39,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 17:51:39,357 INFO L225 Difference]: With dead ends: 50 [2020-09-04 17:51:39,358 INFO L226 Difference]: Without dead ends: 30 [2020-09-04 17:51:39,365 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 [2020-09-04 17:51:39,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-09-04 17:51:39,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2020-09-04 17:51:39,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-09-04 17:51:39,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 33 transitions. [2020-09-04 17:51:39,433 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 33 transitions. Word has length 12 [2020-09-04 17:51:39,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 17:51:39,434 INFO L479 AbstractCegarLoop]: Abstraction has 30 states and 33 transitions. [2020-09-04 17:51:39,434 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-09-04 17:51:39,434 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 33 transitions. [2020-09-04 17:51:39,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-09-04 17:51:39,435 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 17:51:39,435 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 17:51:39,436 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-04 17:51:39,436 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 17:51:39,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 17:51:39,437 INFO L82 PathProgramCache]: Analyzing trace with hash -1309792647, now seen corresponding path program 1 times [2020-09-04 17:51:39,437 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 17:51:39,438 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1936632371] [2020-09-04 17:51:39,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 17:51:39,441 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 17:51:39,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:51:39,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 17:51:39,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:51:39,598 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 17:51:39,599 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1936632371] [2020-09-04 17:51:39,599 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 17:51:39,599 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-04 17:51:39,600 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [252794479] [2020-09-04 17:51:39,601 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-04 17:51:39,601 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 17:51:39,602 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-04 17:51:39,602 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-04 17:51:39,602 INFO L87 Difference]: Start difference. First operand 30 states and 33 transitions. Second operand 3 states. [2020-09-04 17:51:39,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 17:51:39,658 INFO L93 Difference]: Finished difference Result 54 states and 60 transitions. [2020-09-04 17:51:39,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-04 17:51:39,660 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 14 [2020-09-04 17:51:39,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 17:51:39,662 INFO L225 Difference]: With dead ends: 54 [2020-09-04 17:51:39,662 INFO L226 Difference]: Without dead ends: 47 [2020-09-04 17:51:39,665 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 [2020-09-04 17:51:39,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2020-09-04 17:51:39,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 32. [2020-09-04 17:51:39,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2020-09-04 17:51:39,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 35 transitions. [2020-09-04 17:51:39,678 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 35 transitions. Word has length 14 [2020-09-04 17:51:39,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 17:51:39,678 INFO L479 AbstractCegarLoop]: Abstraction has 32 states and 35 transitions. [2020-09-04 17:51:39,679 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-04 17:51:39,679 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 35 transitions. [2020-09-04 17:51:39,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-09-04 17:51:39,680 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 17:51:39,680 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 17:51:39,681 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-04 17:51:39,681 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 17:51:39,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 17:51:39,682 INFO L82 PathProgramCache]: Analyzing trace with hash 1704587139, now seen corresponding path program 1 times [2020-09-04 17:51:39,682 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 17:51:39,683 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1227425055] [2020-09-04 17:51:39,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 17:51:39,713 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 17:51:39,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:51:40,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 17:51:40,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:51:40,317 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 17:51:40,318 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1227425055] [2020-09-04 17:51:40,319 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 17:51:40,319 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-04 17:51:40,319 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2084105980] [2020-09-04 17:51:40,320 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-04 17:51:40,320 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 17:51:40,320 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-04 17:51:40,321 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-04 17:51:40,321 INFO L87 Difference]: Start difference. First operand 32 states and 35 transitions. Second operand 6 states. [2020-09-04 17:51:51,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 17:51:51,119 INFO L93 Difference]: Finished difference Result 74 states and 84 transitions. [2020-09-04 17:51:51,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-04 17:51:51,126 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 20 [2020-09-04 17:51:51,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 17:51:51,128 INFO L225 Difference]: With dead ends: 74 [2020-09-04 17:51:51,128 INFO L226 Difference]: Without dead ends: 43 [2020-09-04 17:51:51,131 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-09-04 17:51:51,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2020-09-04 17:51:51,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 37. [2020-09-04 17:51:51,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2020-09-04 17:51:51,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 40 transitions. [2020-09-04 17:51:51,145 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 40 transitions. Word has length 20 [2020-09-04 17:51:51,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 17:51:51,146 INFO L479 AbstractCegarLoop]: Abstraction has 37 states and 40 transitions. [2020-09-04 17:51:51,146 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-04 17:51:51,146 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 40 transitions. [2020-09-04 17:51:51,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-09-04 17:51:51,148 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 17:51:51,148 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] [2020-09-04 17:51:51,148 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-04 17:51:51,149 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 17:51:51,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 17:51:51,149 INFO L82 PathProgramCache]: Analyzing trace with hash -110349398, now seen corresponding path program 1 times [2020-09-04 17:51:51,149 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 17:51:51,150 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [287731255] [2020-09-04 17:51:51,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 17:51:51,156 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 17:51:51,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:51:51,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 17:51:51,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:51:51,533 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 17:51:51,534 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [287731255] [2020-09-04 17:51:51,535 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 17:51:51,535 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-04 17:51:51,535 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [158316755] [2020-09-04 17:51:51,536 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-04 17:51:51,536 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 17:51:51,536 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-04 17:51:51,537 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-04 17:51:51,537 INFO L87 Difference]: Start difference. First operand 37 states and 40 transitions. Second operand 6 states. [2020-09-04 17:51:55,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 17:51:55,950 INFO L93 Difference]: Finished difference Result 75 states and 85 transitions. [2020-09-04 17:51:55,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-04 17:51:55,953 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 21 [2020-09-04 17:51:55,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 17:51:55,953 INFO L225 Difference]: With dead ends: 75 [2020-09-04 17:51:55,954 INFO L226 Difference]: Without dead ends: 0 [2020-09-04 17:51:55,955 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 [2020-09-04 17:51:55,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-04 17:51:55,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-04 17:51:55,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-04 17:51:55,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-04 17:51:55,957 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 21 [2020-09-04 17:51:55,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 17:51:55,957 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-04 17:51:55,957 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-04 17:51:55,958 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-04 17:51:55,958 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-04 17:51:55,958 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-04 17:51:55,961 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-04 17:51:56,267 INFO L271 CegarLoopResult]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2020-09-04 17:51:56,267 INFO L271 CegarLoopResult]: At program point ULTIMATE.initEXIT(line -1) the Hoare annotation is: true [2020-09-04 17:51:56,268 INFO L271 CegarLoopResult]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2020-09-04 17:51:56,268 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-09-04 17:51:56,268 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-09-04 17:51:56,268 INFO L271 CegarLoopResult]: At program point ULTIMATE.startFINAL(line -1) the Hoare annotation is: true [2020-09-04 17:51:56,269 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))))))) [2020-09-04 17:51:56,269 INFO L271 CegarLoopResult]: At program point mainEXIT(lines 12 33) the Hoare annotation is: true [2020-09-04 17:51:56,269 INFO L271 CegarLoopResult]: At program point L23(line 23) the Hoare annotation is: true [2020-09-04 17:51:56,269 INFO L271 CegarLoopResult]: At program point L23-1(lines 23 26) the Hoare annotation is: true [2020-09-04 17:51:56,270 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)) [2020-09-04 17:51:56,270 INFO L271 CegarLoopResult]: At program point L23-2(line 23) the Hoare annotation is: true [2020-09-04 17:51:56,270 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))))))) [2020-09-04 17:51:56,270 INFO L271 CegarLoopResult]: At program point L23-4(line 23) the Hoare annotation is: true [2020-09-04 17:51:56,271 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)))))))) [2020-09-04 17:51:56,271 INFO L271 CegarLoopResult]: At program point L17(lines 17 28) the Hoare annotation is: true [2020-09-04 17:51:56,271 INFO L271 CegarLoopResult]: At program point mainFINAL(lines 12 33) the Hoare annotation is: true [2020-09-04 17:51:56,271 INFO L271 CegarLoopResult]: At program point L30(lines 30 31) the Hoare annotation is: true [2020-09-04 17:51:56,271 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 12 33) the Hoare annotation is: true [2020-09-04 17:51:56,272 INFO L271 CegarLoopResult]: At program point L26(line 26) the Hoare annotation is: true [2020-09-04 17:51:56,272 INFO L271 CegarLoopResult]: At program point L26-1(line 26) the Hoare annotation is: true [2020-09-04 17:51:56,272 INFO L271 CegarLoopResult]: At program point L24(line 24) the Hoare annotation is: true [2020-09-04 17:51:56,272 INFO L271 CegarLoopResult]: At program point L24-1(line 24) the Hoare annotation is: true [2020-09-04 17:51:56,272 INFO L271 CegarLoopResult]: At program point L20(lines 20 27) the Hoare annotation is: true [2020-09-04 17:51:56,273 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))))))) [2020-09-04 17:51:56,273 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))))))) [2020-09-04 17:51:56,273 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)))))))) [2020-09-04 17:51:56,274 INFO L271 CegarLoopResult]: At program point L14(line 14) the Hoare annotation is: true [2020-09-04 17:51:56,274 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)))))))) [2020-09-04 17:51:56,274 INFO L271 CegarLoopResult]: At program point L16-4(line 16) the Hoare annotation is: true [2020-09-04 17:51:56,275 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)))))))) [2020-09-04 17:51:56,275 INFO L271 CegarLoopResult]: At program point __VERIFIER_assertENTRY(lines 6 10) the Hoare annotation is: true [2020-09-04 17:51:56,275 INFO L271 CegarLoopResult]: At program point __VERIFIER_assertEXIT(lines 6 10) the Hoare annotation is: true [2020-09-04 17:51:56,275 INFO L264 CegarLoopResult]: At program point L8(line 8) the Hoare annotation is: (= |__VERIFIER_assert_#in~cond| 0) [2020-09-04 17:51:56,276 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))) [2020-09-04 17:51:56,276 INFO L271 CegarLoopResult]: At program point L7-2(lines 6 10) the Hoare annotation is: true [2020-09-04 17:51:56,276 INFO L264 CegarLoopResult]: At program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 8) the Hoare annotation is: (= |__VERIFIER_assert_#in~cond| 0) [2020-09-04 17:51:56,314 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.09 05:51:56 BoogieIcfgContainer [2020-09-04 17:51:56,314 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-04 17:51:56,320 INFO L168 Benchmark]: Toolchain (without parser) took 18434.53 ms. Allocated memory was 138.9 MB in the beginning and 235.4 MB in the end (delta: 96.5 MB). Free memory was 102.3 MB in the beginning and 168.1 MB in the end (delta: -65.8 MB). Peak memory consumption was 30.6 MB. Max. memory is 7.1 GB. [2020-09-04 17:51:56,321 INFO L168 Benchmark]: CDTParser took 1.61 ms. Allocated memory is still 138.9 MB. Free memory was 120.2 MB in the beginning and 120.0 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-04 17:51:56,322 INFO L168 Benchmark]: CACSL2BoogieTranslator took 368.69 ms. Allocated memory is still 138.9 MB. Free memory was 102.1 MB in the beginning and 92.5 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.6 MB. Max. memory is 7.1 GB. [2020-09-04 17:51:56,323 INFO L168 Benchmark]: Boogie Preprocessor took 134.25 ms. Allocated memory was 138.9 MB in the beginning and 202.9 MB in the end (delta: 64.0 MB). Free memory was 92.5 MB in the beginning and 182.9 MB in the end (delta: -90.4 MB). Peak memory consumption was 14.6 MB. Max. memory is 7.1 GB. [2020-09-04 17:51:56,325 INFO L168 Benchmark]: RCFGBuilder took 463.33 ms. Allocated memory is still 202.9 MB. Free memory was 181.5 MB in the beginning and 168.8 MB in the end (delta: 12.8 MB). Peak memory consumption was 12.8 MB. Max. memory is 7.1 GB. [2020-09-04 17:51:56,326 INFO L168 Benchmark]: TraceAbstraction took 17449.52 ms. Allocated memory was 202.9 MB in the beginning and 235.4 MB in the end (delta: 32.5 MB). Free memory was 168.1 MB in the beginning and 168.1 MB in the end (delta: -6.8 kB). Peak memory consumption was 32.5 MB. Max. memory is 7.1 GB. [2020-09-04 17:51:56,331 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.61 ms. Allocated memory is still 138.9 MB. Free memory was 120.2 MB in the beginning and 120.0 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 368.69 ms. Allocated memory is still 138.9 MB. Free memory was 102.1 MB in the beginning and 92.5 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 134.25 ms. Allocated memory was 138.9 MB in the beginning and 202.9 MB in the end (delta: 64.0 MB). Free memory was 92.5 MB in the beginning and 182.9 MB in the end (delta: -90.4 MB). Peak memory consumption was 14.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 463.33 ms. Allocated memory is still 202.9 MB. Free memory was 181.5 MB in the beginning and 168.8 MB in the end (delta: 12.8 MB). Peak memory consumption was 12.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 17449.52 ms. Allocated memory was 202.9 MB in the beginning and 235.4 MB in the end (delta: 32.5 MB). Free memory was 168.1 MB in the beginning and 168.1 MB in the end (delta: -6.8 kB). Peak memory consumption was 32.5 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: 16.9s, OverallIterations: 4, TraceHistogramMax: 2, AutomataDifference: 15.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 150 SDtfs, 35 SDslu, 275 SDs, 0 SdLazy, 80 SolverSat, 8 SolverUnsat, 7 SolverUnknown, 0 SolverNotchecked, 14.3s 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...