/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/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/loop-invariants/odd.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-6598664 [2019-11-23 22:10:31,036 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-23 22:10:31,039 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-23 22:10:31,060 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-23 22:10:31,061 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-23 22:10:31,063 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-23 22:10:31,065 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-23 22:10:31,074 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-23 22:10:31,075 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-23 22:10:31,076 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-23 22:10:31,078 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-23 22:10:31,079 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-23 22:10:31,079 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-23 22:10:31,081 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-23 22:10:31,084 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-23 22:10:31,086 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-23 22:10:31,087 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-23 22:10:31,091 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-23 22:10:31,093 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-23 22:10:31,098 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-23 22:10:31,101 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-23 22:10:31,103 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-23 22:10:31,104 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-23 22:10:31,105 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-23 22:10:31,107 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-11-23 22:10:31,120 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-23 22:10:31,149 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-23 22:10:31,149 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-23 22:10:31,150 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-23 22:10:31,151 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-23 22:10:31,151 INFO L138 SettingsManager]: * Use SBE=true [2019-11-23 22:10:31,151 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-23 22:10:31,151 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-23 22:10:31,151 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-23 22:10:31,152 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-23 22:10:31,155 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-23 22:10:31,155 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-23 22:10:31,156 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-23 22:10:31,156 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-23 22:10:31,156 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-11-23 22:10:31,156 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-23 22:10:31,156 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-23 22:10:31,157 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-23 22:10:31,157 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-23 22:10:31,157 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-23 22:10:31,157 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-23 22:10:31,157 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-23 22:10:31,158 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-23 22:10:31,158 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-23 22:10:31,158 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-23 22:10:31,158 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-23 22:10:31,158 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-23 22:10:31,159 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-23 22:10:31,159 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-23 22:10:31,159 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-23 22:10:31,159 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-23 22:10:31,425 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-23 22:10:31,437 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-23 22:10:31,440 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-23 22:10:31,442 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-23 22:10:31,442 INFO L275 PluginConnector]: CDTParser initialized [2019-11-23 22:10:31,443 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-invariants/odd.c [2019-11-23 22:10:31,503 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b815d2eb6/a35a697f8f624ed4a3dfc6d8696961a4/FLAG48a092d52 [2019-11-23 22:10:31,887 INFO L306 CDTParser]: Found 1 translation units. [2019-11-23 22:10:31,888 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-invariants/odd.c [2019-11-23 22:10:31,894 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b815d2eb6/a35a697f8f624ed4a3dfc6d8696961a4/FLAG48a092d52 [2019-11-23 22:10:32,317 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b815d2eb6/a35a697f8f624ed4a3dfc6d8696961a4 [2019-11-23 22:10:32,327 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-23 22:10:32,329 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-23 22:10:32,330 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-23 22:10:32,330 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-23 22:10:32,333 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-23 22:10:32,334 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:10:32" (1/1) ... [2019-11-23 22:10:32,337 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d618acc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:10:32, skipping insertion in model container [2019-11-23 22:10:32,338 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:10:32" (1/1) ... [2019-11-23 22:10:32,345 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-23 22:10:32,359 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-23 22:10:32,544 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-23 22:10:32,547 INFO L203 MainTranslator]: Completed pre-run [2019-11-23 22:10:32,558 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-23 22:10:32,570 INFO L208 MainTranslator]: Completed translation [2019-11-23 22:10:32,571 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:10:32 WrapperNode [2019-11-23 22:10:32,571 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-23 22:10:32,572 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-23 22:10:32,572 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-23 22:10:32,572 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-23 22:10:32,581 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:10:32" (1/1) ... [2019-11-23 22:10:32,586 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:10:32" (1/1) ... [2019-11-23 22:10:32,695 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-23 22:10:32,696 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-23 22:10:32,696 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-23 22:10:32,696 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-23 22:10:32,705 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:10:32" (1/1) ... [2019-11-23 22:10:32,706 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:10:32" (1/1) ... [2019-11-23 22:10:32,707 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:10:32" (1/1) ... [2019-11-23 22:10:32,707 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:10:32" (1/1) ... [2019-11-23 22:10:32,715 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:10:32" (1/1) ... [2019-11-23 22:10:32,721 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:10:32" (1/1) ... [2019-11-23 22:10:32,722 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:10:32" (1/1) ... [2019-11-23 22:10:32,726 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-23 22:10:32,726 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-23 22:10:32,726 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-23 22:10:32,726 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-23 22:10:32,727 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:10:32" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-23 22:10:32,797 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-23 22:10:32,797 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-23 22:10:32,992 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-23 22:10:32,992 INFO L284 CfgBuilder]: Removed 7 assume(true) statements. [2019-11-23 22:10:32,994 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:10:32 BoogieIcfgContainer [2019-11-23 22:10:32,994 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-23 22:10:32,995 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-23 22:10:32,995 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-23 22:10:32,999 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-23 22:10:32,999 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 10:10:32" (1/3) ... [2019-11-23 22:10:33,000 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c330262 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:10:33, skipping insertion in model container [2019-11-23 22:10:33,000 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:10:32" (2/3) ... [2019-11-23 22:10:33,001 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c330262 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:10:33, skipping insertion in model container [2019-11-23 22:10:33,001 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:10:32" (3/3) ... [2019-11-23 22:10:33,002 INFO L109 eAbstractionObserver]: Analyzing ICFG odd.c [2019-11-23 22:10:33,012 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-23 22:10:33,019 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-23 22:10:33,030 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-23 22:10:33,052 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-23 22:10:33,052 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-23 22:10:33,052 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-23 22:10:33,052 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-23 22:10:33,052 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-23 22:10:33,053 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-23 22:10:33,053 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-23 22:10:33,053 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-23 22:10:33,064 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states. [2019-11-23 22:10:33,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-11-23 22:10:33,068 INFO L402 BasicCegarLoop]: Found error trace [2019-11-23 22:10:33,069 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-11-23 22:10:33,069 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-23 22:10:33,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-23 22:10:33,075 INFO L82 PathProgramCache]: Analyzing trace with hash 29954948, now seen corresponding path program 1 times [2019-11-23 22:10:33,084 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-23 22:10:33,085 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1224607453] [2019-11-23 22:10:33,085 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-23 22:10:33,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 22:10:33,181 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-23 22:10:33,181 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1224607453] [2019-11-23 22:10:33,182 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-23 22:10:33,183 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-23 22:10:33,184 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1449753182] [2019-11-23 22:10:33,190 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-23 22:10:33,190 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-23 22:10:33,204 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-23 22:10:33,205 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-23 22:10:33,207 INFO L87 Difference]: Start difference. First operand 11 states. Second operand 2 states. [2019-11-23 22:10:33,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-23 22:10:33,224 INFO L93 Difference]: Finished difference Result 19 states and 21 transitions. [2019-11-23 22:10:33,225 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-23 22:10:33,226 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 5 [2019-11-23 22:10:33,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-23 22:10:33,236 INFO L225 Difference]: With dead ends: 19 [2019-11-23 22:10:33,236 INFO L226 Difference]: Without dead ends: 7 [2019-11-23 22:10:33,239 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-23 22:10:33,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states. [2019-11-23 22:10:33,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2019-11-23 22:10:33,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2019-11-23 22:10:33,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 7 transitions. [2019-11-23 22:10:33,274 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 7 transitions. Word has length 5 [2019-11-23 22:10:33,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-23 22:10:33,274 INFO L462 AbstractCegarLoop]: Abstraction has 7 states and 7 transitions. [2019-11-23 22:10:33,275 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-23 22:10:33,275 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 7 transitions. [2019-11-23 22:10:33,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-11-23 22:10:33,275 INFO L402 BasicCegarLoop]: Found error trace [2019-11-23 22:10:33,275 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2019-11-23 22:10:33,276 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-23 22:10:33,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-23 22:10:33,276 INFO L82 PathProgramCache]: Analyzing trace with hash 921957070, now seen corresponding path program 1 times [2019-11-23 22:10:33,277 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-23 22:10:33,277 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1539785638] [2019-11-23 22:10:33,277 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-23 22:10:33,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 22:10:37,797 WARN L192 SmtUtils]: Spent 4.34 s on a formula simplification. DAG size of input: 87 DAG size of output: 13 [2019-11-23 22:10:37,809 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-23 22:10:37,810 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1539785638] [2019-11-23 22:10:37,810 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-23 22:10:37,811 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-23 22:10:37,811 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1038180285] [2019-11-23 22:10:37,814 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-23 22:10:37,814 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-23 22:10:37,815 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-23 22:10:37,815 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-23 22:10:37,817 INFO L87 Difference]: Start difference. First operand 7 states and 7 transitions. Second operand 4 states. [2019-11-23 22:10:37,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-23 22:10:37,858 INFO L93 Difference]: Finished difference Result 7 states and 7 transitions. [2019-11-23 22:10:37,858 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-23 22:10:37,858 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 6 [2019-11-23 22:10:37,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-23 22:10:37,859 INFO L225 Difference]: With dead ends: 7 [2019-11-23 22:10:37,859 INFO L226 Difference]: Without dead ends: 0 [2019-11-23 22:10:37,860 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-11-23 22:10:37,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-23 22:10:37,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-23 22:10:37,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-23 22:10:37,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-23 22:10:37,862 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 6 [2019-11-23 22:10:37,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-23 22:10:37,863 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-23 22:10:37,863 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-23 22:10:37,863 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-23 22:10:37,863 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-23 22:10:37,868 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-23 22:10:37,894 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-23 22:10:37,895 INFO L447 ceAbstractionStarter]: At program point L15(lines 9 16) the Hoare annotation is: true [2019-11-23 22:10:37,895 INFO L444 ceAbstractionStarter]: For program point L11-1(lines 11 13) no Hoare annotation was computed. [2019-11-23 22:10:37,895 INFO L440 ceAbstractionStarter]: At program point L11-3(lines 11 13) the Hoare annotation is: (not (= ULTIMATE.start_main_~x~0 (let ((.cse0 (div ULTIMATE.start_main_~x~0 2))) (+ (* 2 .cse0) (* 4294967296 (div (+ (* .cse0 (- 2)) ULTIMATE.start_main_~x~0) 4294967296)))))) [2019-11-23 22:10:37,895 INFO L444 ceAbstractionStarter]: For program point L11-4(lines 11 13) no Hoare annotation was computed. [2019-11-23 22:10:37,896 INFO L444 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2019-11-23 22:10:37,896 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-23 22:10:37,897 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-23 22:10:37,897 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2019-11-23 22:10:37,897 INFO L444 ceAbstractionStarter]: For program point L4(lines 4 6) no Hoare annotation was computed. [2019-11-23 22:10:37,898 INFO L447 ceAbstractionStarter]: At program point L4-2(lines 3 8) the Hoare annotation is: true [2019-11-23 22:10:37,919 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 10:10:37 BoogieIcfgContainer [2019-11-23 22:10:37,919 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-23 22:10:37,921 INFO L168 Benchmark]: Toolchain (without parser) took 5592.12 ms. Allocated memory was 145.2 MB in the beginning and 203.9 MB in the end (delta: 58.7 MB). Free memory was 102.8 MB in the beginning and 131.2 MB in the end (delta: -28.4 MB). Peak memory consumption was 30.3 MB. Max. memory is 7.1 GB. [2019-11-23 22:10:37,922 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 145.2 MB. Free memory was 121.2 MB in the beginning and 121.0 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2019-11-23 22:10:37,923 INFO L168 Benchmark]: CACSL2BoogieTranslator took 241.75 ms. Allocated memory is still 145.2 MB. Free memory was 102.4 MB in the beginning and 93.3 MB in the end (delta: 9.1 MB). Peak memory consumption was 9.1 MB. Max. memory is 7.1 GB. [2019-11-23 22:10:37,925 INFO L168 Benchmark]: Boogie Procedure Inliner took 123.85 ms. Allocated memory was 145.2 MB in the beginning and 203.9 MB in the end (delta: 58.7 MB). Free memory was 93.3 MB in the beginning and 183.1 MB in the end (delta: -89.8 MB). Peak memory consumption was 11.0 MB. Max. memory is 7.1 GB. [2019-11-23 22:10:37,926 INFO L168 Benchmark]: Boogie Preprocessor took 29.97 ms. Allocated memory is still 203.9 MB. Free memory was 183.1 MB in the beginning and 181.4 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 7.1 GB. [2019-11-23 22:10:37,926 INFO L168 Benchmark]: RCFGBuilder took 267.87 ms. Allocated memory is still 203.9 MB. Free memory was 181.4 MB in the beginning and 172.1 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 7.1 GB. [2019-11-23 22:10:37,927 INFO L168 Benchmark]: TraceAbstraction took 4924.12 ms. Allocated memory is still 203.9 MB. Free memory was 171.5 MB in the beginning and 131.2 MB in the end (delta: 40.3 MB). Peak memory consumption was 40.3 MB. Max. memory is 7.1 GB. [2019-11-23 22:10:37,932 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 145.2 MB. Free memory was 121.2 MB in the beginning and 121.0 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 241.75 ms. Allocated memory is still 145.2 MB. Free memory was 102.4 MB in the beginning and 93.3 MB in the end (delta: 9.1 MB). Peak memory consumption was 9.1 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 123.85 ms. Allocated memory was 145.2 MB in the beginning and 203.9 MB in the end (delta: 58.7 MB). Free memory was 93.3 MB in the beginning and 183.1 MB in the end (delta: -89.8 MB). Peak memory consumption was 11.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 29.97 ms. Allocated memory is still 203.9 MB. Free memory was 183.1 MB in the beginning and 181.4 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 267.87 ms. Allocated memory is still 203.9 MB. Free memory was 181.4 MB in the beginning and 172.1 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4924.12 ms. Allocated memory is still 203.9 MB. Free memory was 171.5 MB in the beginning and 131.2 MB in the end (delta: 40.3 MB). Peak memory consumption was 40.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 5]: 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: 9]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 3]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 11]: Loop Invariant Derived loop invariant: !(x == 2 * (x / 2) + 4294967296 * ((x / 2 * -2 + x) / 4294967296)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 11 locations, 1 error locations. Result: SAFE, OverallTime: 4.8s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 14 SDtfs, 1 SDslu, 3 SDs, 0 SdLazy, 3 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=11occurred 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 5 NumberOfFragments, 22 HoareAnnotationTreeSize, 3 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 4.5s InterpolantComputationTime, 11 NumberOfCodeBlocks, 11 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 341 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...