/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/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/loop-invariants/const.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fb55353 [2019-11-06 21:22:02,694 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-06 21:22:02,696 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-06 21:22:02,715 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-06 21:22:02,716 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-06 21:22:02,718 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-06 21:22:02,720 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-06 21:22:02,730 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-06 21:22:02,732 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-06 21:22:02,734 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-06 21:22:02,735 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-06 21:22:02,737 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-06 21:22:02,737 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-06 21:22:02,739 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-06 21:22:02,741 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-06 21:22:02,743 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-06 21:22:02,745 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-06 21:22:02,749 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-06 21:22:02,751 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-06 21:22:02,757 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-06 21:22:02,761 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-06 21:22:02,764 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-06 21:22:02,765 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-06 21:22:02,766 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-06 21:22:02,770 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-11-06 21:22:02,782 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-06 21:22:02,783 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-06 21:22:02,783 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-06 21:22:02,784 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 [2019-11-06 21:22:02,819 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-06 21:22:02,819 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-06 21:22:02,821 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-06 21:22:02,823 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-06 21:22:02,823 INFO L138 SettingsManager]: * Use SBE=true [2019-11-06 21:22:02,823 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-06 21:22:02,824 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-06 21:22:02,824 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-06 21:22:02,824 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-06 21:22:02,824 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-06 21:22:02,824 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-06 21:22:02,824 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-06 21:22:02,825 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-06 21:22:02,825 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-06 21:22:02,825 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-06 21:22:02,825 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-06 21:22:02,825 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-06 21:22:02,826 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-06 21:22:02,829 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-06 21:22:02,829 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-06 21:22:02,829 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-06 21:22:02,830 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-06 21:22:02,830 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-06 21:22:02,830 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-06 21:22:02,830 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-06 21:22:02,830 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-06 21:22:02,830 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-06 21:22:02,833 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-06 21:22:02,833 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-06 21:22:03,108 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-06 21:22:03,121 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-06 21:22:03,125 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-06 21:22:03,126 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-06 21:22:03,127 INFO L275 PluginConnector]: CDTParser initialized [2019-11-06 21:22:03,128 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-invariants/const.c [2019-11-06 21:22:03,191 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/35b39aefd/31e4a013340a4804994c05d75bdc05e9/FLAG6181d0e70 [2019-11-06 21:22:03,625 INFO L306 CDTParser]: Found 1 translation units. [2019-11-06 21:22:03,626 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-invariants/const.c [2019-11-06 21:22:03,632 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/35b39aefd/31e4a013340a4804994c05d75bdc05e9/FLAG6181d0e70 [2019-11-06 21:22:04,026 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/35b39aefd/31e4a013340a4804994c05d75bdc05e9 [2019-11-06 21:22:04,037 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-06 21:22:04,039 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-11-06 21:22:04,040 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-06 21:22:04,040 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-06 21:22:04,043 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-06 21:22:04,044 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 09:22:04" (1/1) ... [2019-11-06 21:22:04,047 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63c96835 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:22:04, skipping insertion in model container [2019-11-06 21:22:04,048 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 09:22:04" (1/1) ... [2019-11-06 21:22:04,055 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-06 21:22:04,075 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-06 21:22:04,273 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-06 21:22:04,283 INFO L188 MainTranslator]: Completed pre-run [2019-11-06 21:22:04,303 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-06 21:22:04,320 INFO L192 MainTranslator]: Completed translation [2019-11-06 21:22:04,321 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:22:04 WrapperNode [2019-11-06 21:22:04,321 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-06 21:22:04,322 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-06 21:22:04,322 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-06 21:22:04,322 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-06 21:22:04,415 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:22:04" (1/1) ... [2019-11-06 21:22:04,416 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:22:04" (1/1) ... [2019-11-06 21:22:04,421 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:22:04" (1/1) ... [2019-11-06 21:22:04,421 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:22:04" (1/1) ... [2019-11-06 21:22:04,429 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:22:04" (1/1) ... [2019-11-06 21:22:04,433 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:22:04" (1/1) ... [2019-11-06 21:22:04,434 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:22:04" (1/1) ... [2019-11-06 21:22:04,435 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-06 21:22:04,436 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-06 21:22:04,436 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-06 21:22:04,436 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-06 21:22:04,437 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:22:04" (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 [2019-11-06 21:22:04,498 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-06 21:22:04,498 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-06 21:22:04,498 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-11-06 21:22:04,498 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-06 21:22:04,499 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-06 21:22:04,499 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2019-11-06 21:22:04,499 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-11-06 21:22:04,499 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-06 21:22:04,499 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-06 21:22:04,499 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-06 21:22:04,662 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-06 21:22:04,663 INFO L284 CfgBuilder]: Removed 1 assume(true) statements. [2019-11-06 21:22:04,664 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 09:22:04 BoogieIcfgContainer [2019-11-06 21:22:04,664 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-06 21:22:04,666 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-06 21:22:04,666 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-06 21:22:04,669 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-06 21:22:04,669 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 09:22:04" (1/3) ... [2019-11-06 21:22:04,670 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d2f32f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 09:22:04, skipping insertion in model container [2019-11-06 21:22:04,670 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:22:04" (2/3) ... [2019-11-06 21:22:04,671 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d2f32f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 09:22:04, skipping insertion in model container [2019-11-06 21:22:04,671 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 09:22:04" (3/3) ... [2019-11-06 21:22:04,673 INFO L109 eAbstractionObserver]: Analyzing ICFG const.c [2019-11-06 21:22:04,683 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-06 21:22:04,700 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-06 21:22:04,732 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-06 21:22:04,788 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-06 21:22:04,789 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-06 21:22:04,789 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-06 21:22:04,789 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-06 21:22:04,789 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-06 21:22:04,789 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-06 21:22:04,789 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-06 21:22:04,790 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-06 21:22:04,814 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states. [2019-11-06 21:22:04,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-11-06 21:22:04,822 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 21:22:04,823 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-06 21:22:04,826 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 21:22:04,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 21:22:04,832 INFO L82 PathProgramCache]: Analyzing trace with hash -1311776583, now seen corresponding path program 1 times [2019-11-06 21:22:04,840 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 21:22:04,840 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1952543495] [2019-11-06 21:22:04,840 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 21:22:04,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:22:05,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:22:05,073 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-06 21:22:05,074 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1952543495] [2019-11-06 21:22:05,075 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 21:22:05,075 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-06 21:22:05,077 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [781618458] [2019-11-06 21:22:05,081 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-06 21:22:05,082 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 21:22:05,096 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-06 21:22:05,097 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-06 21:22:05,099 INFO L87 Difference]: Start difference. First operand 20 states. Second operand 3 states. [2019-11-06 21:22:05,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 21:22:05,131 INFO L93 Difference]: Finished difference Result 35 states and 44 transitions. [2019-11-06 21:22:05,132 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-06 21:22:05,134 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2019-11-06 21:22:05,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 21:22:05,141 INFO L225 Difference]: With dead ends: 35 [2019-11-06 21:22:05,142 INFO L226 Difference]: Without dead ends: 15 [2019-11-06 21:22:05,145 INFO L630 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 [2019-11-06 21:22:05,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2019-11-06 21:22:05,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2019-11-06 21:22:05,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2019-11-06 21:22:05,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 16 transitions. [2019-11-06 21:22:05,181 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 16 transitions. Word has length 12 [2019-11-06 21:22:05,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 21:22:05,182 INFO L462 AbstractCegarLoop]: Abstraction has 15 states and 16 transitions. [2019-11-06 21:22:05,182 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-06 21:22:05,182 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 16 transitions. [2019-11-06 21:22:05,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-11-06 21:22:05,183 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 21:22:05,183 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-06 21:22:05,184 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 21:22:05,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 21:22:05,184 INFO L82 PathProgramCache]: Analyzing trace with hash -1254518281, now seen corresponding path program 1 times [2019-11-06 21:22:05,184 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 21:22:05,185 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1950652820] [2019-11-06 21:22:05,185 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 21:22:05,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:22:05,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:22:05,259 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-06 21:22:05,262 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1950652820] [2019-11-06 21:22:05,262 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 21:22:05,262 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-06 21:22:05,263 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2118463607] [2019-11-06 21:22:05,264 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-06 21:22:05,265 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 21:22:05,265 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-06 21:22:05,265 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-06 21:22:05,265 INFO L87 Difference]: Start difference. First operand 15 states and 16 transitions. Second operand 5 states. [2019-11-06 21:22:05,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 21:22:05,322 INFO L93 Difference]: Finished difference Result 15 states and 16 transitions. [2019-11-06 21:22:05,323 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-06 21:22:05,323 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2019-11-06 21:22:05,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 21:22:05,324 INFO L225 Difference]: With dead ends: 15 [2019-11-06 21:22:05,324 INFO L226 Difference]: Without dead ends: 0 [2019-11-06 21:22:05,326 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-11-06 21:22:05,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-06 21:22:05,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-06 21:22:05,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-06 21:22:05,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-06 21:22:05,327 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 12 [2019-11-06 21:22:05,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 21:22:05,327 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-06 21:22:05,328 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-06 21:22:05,328 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-06 21:22:05,328 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-06 21:22:05,333 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-06 21:22:05,403 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2019-11-06 21:22:05,403 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-11-06 21:22:05,403 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-06 21:22:05,403 INFO L446 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2019-11-06 21:22:05,403 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-11-06 21:22:05,404 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-06 21:22:05,404 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 9 20) no Hoare annotation was computed. [2019-11-06 21:22:05,404 INFO L439 ceAbstractionStarter]: At program point L15(lines 11 18) the Hoare annotation is: (let ((.cse0 (div main_~s~0 4294967296))) (and (= main_~s~0 (* 4294967296 .cse0)) (< 0 (+ .cse0 1)))) [2019-11-06 21:22:05,404 INFO L443 ceAbstractionStarter]: For program point mainFINAL(lines 9 20) no Hoare annotation was computed. [2019-11-06 21:22:05,404 INFO L443 ceAbstractionStarter]: For program point L11-2(lines 11 18) no Hoare annotation was computed. [2019-11-06 21:22:05,405 INFO L446 ceAbstractionStarter]: At program point mainENTRY(lines 9 20) the Hoare annotation is: true [2019-11-06 21:22:05,405 INFO L439 ceAbstractionStarter]: At program point L16(line 16) the Hoare annotation is: (let ((.cse0 (div main_~s~0 4294967296))) (and (= main_~s~0 (* 4294967296 .cse0)) (< 0 (+ .cse0 1)))) [2019-11-06 21:22:05,405 INFO L443 ceAbstractionStarter]: For program point L12(lines 12 14) no Hoare annotation was computed. [2019-11-06 21:22:05,405 INFO L443 ceAbstractionStarter]: For program point L12-2(lines 11 18) no Hoare annotation was computed. [2019-11-06 21:22:05,406 INFO L446 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(lines 3 8) the Hoare annotation is: true [2019-11-06 21:22:05,406 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2019-11-06 21:22:05,406 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(lines 3 8) no Hoare annotation was computed. [2019-11-06 21:22:05,406 INFO L443 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2019-11-06 21:22:05,406 INFO L443 ceAbstractionStarter]: For program point L4(lines 4 6) no Hoare annotation was computed. [2019-11-06 21:22:05,407 INFO L443 ceAbstractionStarter]: For program point L4-2(lines 3 8) no Hoare annotation was computed. [2019-11-06 21:22:05,421 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 09:22:05 BoogieIcfgContainer [2019-11-06 21:22:05,422 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-06 21:22:05,425 INFO L168 Benchmark]: Toolchain (without parser) took 1385.19 ms. Allocated memory was 138.9 MB in the beginning and 203.9 MB in the end (delta: 65.0 MB). Free memory was 102.4 MB in the beginning and 134.7 MB in the end (delta: -32.3 MB). Peak memory consumption was 32.7 MB. Max. memory is 7.1 GB. [2019-11-06 21:22:05,426 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 138.9 MB. Free memory was 120.9 MB in the beginning and 120.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-11-06 21:22:05,427 INFO L168 Benchmark]: CACSL2BoogieTranslator took 281.86 ms. Allocated memory is still 138.9 MB. Free memory was 101.9 MB in the beginning and 92.4 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.5 MB. Max. memory is 7.1 GB. [2019-11-06 21:22:05,428 INFO L168 Benchmark]: Boogie Preprocessor took 113.60 ms. Allocated memory was 138.9 MB in the beginning and 203.9 MB in the end (delta: 65.0 MB). Free memory was 92.4 MB in the beginning and 182.7 MB in the end (delta: -90.3 MB). Peak memory consumption was 14.1 MB. Max. memory is 7.1 GB. [2019-11-06 21:22:05,429 INFO L168 Benchmark]: RCFGBuilder took 228.95 ms. Allocated memory is still 203.9 MB. Free memory was 182.7 MB in the beginning and 171.8 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.9 MB. Max. memory is 7.1 GB. [2019-11-06 21:22:05,430 INFO L168 Benchmark]: TraceAbstraction took 756.28 ms. Allocated memory is still 203.9 MB. Free memory was 171.2 MB in the beginning and 134.7 MB in the end (delta: 36.5 MB). Peak memory consumption was 36.5 MB. Max. memory is 7.1 GB. [2019-11-06 21:22:05,435 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 138.9 MB. Free memory was 120.9 MB in the beginning and 120.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 281.86 ms. Allocated memory is still 138.9 MB. Free memory was 101.9 MB in the beginning and 92.4 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 113.60 ms. Allocated memory was 138.9 MB in the beginning and 203.9 MB in the end (delta: 65.0 MB). Free memory was 92.4 MB in the beginning and 182.7 MB in the end (delta: -90.3 MB). Peak memory consumption was 14.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 228.95 ms. Allocated memory is still 203.9 MB. Free memory was 182.7 MB in the beginning and 171.8 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 756.28 ms. Allocated memory is still 203.9 MB. Free memory was 171.2 MB in the beginning and 134.7 MB in the end (delta: 36.5 MB). Peak memory consumption was 36.5 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: 11]: Loop Invariant Derived loop invariant: s == 4294967296 * (s / 4294967296) && 0 < s / 4294967296 + 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 20 locations, 1 error locations. Result: SAFE, OverallTime: 0.6s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 30 SDtfs, 13 SDslu, 35 SDs, 0 SdLazy, 11 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=20occurred 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, 7 LocationsWithAnnotation, 8 PreInvPairs, 10 NumberOfFragments, 35 HoareAnnotationTreeSize, 8 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 14 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 24 NumberOfCodeBlocks, 24 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 22 ConstructedInterpolants, 0 QuantifiedInterpolants, 748 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...