/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 --abstractinterpretationv2.abstract.domain IntervalDomain --traceabstraction.trace.refinement.strategy TAIPAN --traceabstraction.abstract.interpretation.mode USE_PREDICATES -i ../../../trunk/examples/svcomp/loop-industry-pattern/mod3.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fb55353 [2019-11-07 00:33:37,161 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-07 00:33:37,163 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-07 00:33:37,175 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-07 00:33:37,175 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-07 00:33:37,176 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-07 00:33:37,178 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-07 00:33:37,179 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-07 00:33:37,181 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-07 00:33:37,182 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-07 00:33:37,186 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-07 00:33:37,187 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-07 00:33:37,188 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-07 00:33:37,190 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-07 00:33:37,191 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-07 00:33:37,193 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-07 00:33:37,193 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-07 00:33:37,197 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-07 00:33:37,198 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-07 00:33:37,201 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-07 00:33:37,205 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-07 00:33:37,206 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-07 00:33:37,208 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-07 00:33:37,208 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-07 00:33:37,212 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-11-07 00:33:37,225 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-07 00:33:37,229 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-07 00:33:37,230 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-07 00:33:37,230 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 [2019-11-07 00:33:37,250 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-07 00:33:37,251 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-07 00:33:37,254 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-07 00:33:37,255 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-07 00:33:37,255 INFO L138 SettingsManager]: * Use SBE=true [2019-11-07 00:33:37,255 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-07 00:33:37,255 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-07 00:33:37,255 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-07 00:33:37,256 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-07 00:33:37,256 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-07 00:33:37,257 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-07 00:33:37,257 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-07 00:33:37,257 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-07 00:33:37,258 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-07 00:33:37,258 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-07 00:33:37,258 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-07 00:33:37,258 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-07 00:33:37,258 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-07 00:33:37,259 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-07 00:33:37,259 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-07 00:33:37,259 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-07 00:33:37,259 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-07 00:33:37,259 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-07 00:33:37,260 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-07 00:33:37,260 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-07 00:33:37,260 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-07 00:33:37,260 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-07 00:33:37,260 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-07 00:33:37,261 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: Abstract domain -> IntervalDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Abstract interpretation Mode -> USE_PREDICATES [2019-11-07 00:33:37,583 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-07 00:33:37,601 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-07 00:33:37,604 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-07 00:33:37,606 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-07 00:33:37,606 INFO L275 PluginConnector]: CDTParser initialized [2019-11-07 00:33:37,607 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-industry-pattern/mod3.c [2019-11-07 00:33:37,678 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ac6bcaf76/7fc90d856733479d8003f039efc01e4c/FLAGb06d547cf [2019-11-07 00:33:38,110 INFO L306 CDTParser]: Found 1 translation units. [2019-11-07 00:33:38,110 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-industry-pattern/mod3.c [2019-11-07 00:33:38,117 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ac6bcaf76/7fc90d856733479d8003f039efc01e4c/FLAGb06d547cf [2019-11-07 00:33:38,584 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ac6bcaf76/7fc90d856733479d8003f039efc01e4c [2019-11-07 00:33:38,608 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-07 00:33:38,610 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-11-07 00:33:38,619 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-07 00:33:38,619 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-07 00:33:38,626 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-07 00:33:38,629 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:33:38" (1/1) ... [2019-11-07 00:33:38,634 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@123ae4d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:33:38, skipping insertion in model container [2019-11-07 00:33:38,636 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:33:38" (1/1) ... [2019-11-07 00:33:38,653 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-07 00:33:38,692 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-07 00:33:38,907 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 00:33:38,910 INFO L188 MainTranslator]: Completed pre-run [2019-11-07 00:33:38,928 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 00:33:38,940 INFO L192 MainTranslator]: Completed translation [2019-11-07 00:33:38,940 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:33:38 WrapperNode [2019-11-07 00:33:38,940 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-07 00:33:38,941 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-07 00:33:38,941 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-07 00:33:38,941 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-07 00:33:39,024 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:33:38" (1/1) ... [2019-11-07 00:33:39,025 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:33:38" (1/1) ... [2019-11-07 00:33:39,032 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:33:38" (1/1) ... [2019-11-07 00:33:39,032 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:33:38" (1/1) ... [2019-11-07 00:33:39,036 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:33:38" (1/1) ... [2019-11-07 00:33:39,041 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:33:38" (1/1) ... [2019-11-07 00:33:39,042 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:33:38" (1/1) ... [2019-11-07 00:33:39,043 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-07 00:33:39,043 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-07 00:33:39,044 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-07 00:33:39,044 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-07 00:33:39,045 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:33:38" (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 [2019-11-07 00:33:39,102 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-07 00:33:39,102 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-07 00:33:39,102 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-11-07 00:33:39,102 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-07 00:33:39,103 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-07 00:33:39,103 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-07 00:33:39,103 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-11-07 00:33:39,103 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-07 00:33:39,103 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-07 00:33:39,103 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-07 00:33:39,306 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-07 00:33:39,306 INFO L284 CfgBuilder]: Removed 1 assume(true) statements. [2019-11-07 00:33:39,307 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:33:39 BoogieIcfgContainer [2019-11-07 00:33:39,307 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-07 00:33:39,308 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-07 00:33:39,309 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-07 00:33:39,311 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-07 00:33:39,312 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 12:33:38" (1/3) ... [2019-11-07 00:33:39,312 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b813f62 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:33:39, skipping insertion in model container [2019-11-07 00:33:39,313 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:33:38" (2/3) ... [2019-11-07 00:33:39,313 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b813f62 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:33:39, skipping insertion in model container [2019-11-07 00:33:39,313 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:33:39" (3/3) ... [2019-11-07 00:33:39,315 INFO L109 eAbstractionObserver]: Analyzing ICFG mod3.c [2019-11-07 00:33:39,325 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-07 00:33:39,332 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-07 00:33:39,347 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-07 00:33:39,376 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-07 00:33:39,376 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-07 00:33:39,377 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-07 00:33:39,377 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-07 00:33:39,377 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-07 00:33:39,377 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-07 00:33:39,377 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-07 00:33:39,377 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-07 00:33:39,414 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states. [2019-11-07 00:33:39,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-07 00:33:39,421 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:33:39,422 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:33:39,423 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:33:39,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:33:39,429 INFO L82 PathProgramCache]: Analyzing trace with hash 271538127, now seen corresponding path program 1 times [2019-11-07 00:33:39,440 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:33:39,441 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1890500527] [2019-11-07 00:33:39,441 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:33:39,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:33:39,542 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 00:33:39,543 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1890500527] [2019-11-07 00:33:39,544 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:33:39,544 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-07 00:33:39,546 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2134480685] [2019-11-07 00:33:39,551 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-07 00:33:39,552 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:33:39,564 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-07 00:33:39,565 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-07 00:33:39,567 INFO L87 Difference]: Start difference. First operand 23 states. Second operand 2 states. [2019-11-07 00:33:39,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:33:39,586 INFO L93 Difference]: Finished difference Result 36 states and 44 transitions. [2019-11-07 00:33:39,586 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-07 00:33:39,587 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2019-11-07 00:33:39,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:33:39,595 INFO L225 Difference]: With dead ends: 36 [2019-11-07 00:33:39,595 INFO L226 Difference]: Without dead ends: 16 [2019-11-07 00:33:39,598 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 [2019-11-07 00:33:39,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2019-11-07 00:33:39,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2019-11-07 00:33:39,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2019-11-07 00:33:39,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 19 transitions. [2019-11-07 00:33:39,629 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 19 transitions. Word has length 11 [2019-11-07 00:33:39,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:33:39,630 INFO L462 AbstractCegarLoop]: Abstraction has 16 states and 19 transitions. [2019-11-07 00:33:39,630 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-07 00:33:39,630 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 19 transitions. [2019-11-07 00:33:39,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-11-07 00:33:39,631 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:33:39,631 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:33:39,631 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:33:39,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:33:39,632 INFO L82 PathProgramCache]: Analyzing trace with hash 183026044, now seen corresponding path program 1 times [2019-11-07 00:33:39,632 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:33:39,632 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1733785955] [2019-11-07 00:33:39,633 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:33:39,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:33:39,741 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 00:33:39,742 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1733785955] [2019-11-07 00:33:39,742 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:33:39,742 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 00:33:39,743 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [680046270] [2019-11-07 00:33:39,744 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 00:33:39,744 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:33:39,745 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 00:33:39,745 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 00:33:39,745 INFO L87 Difference]: Start difference. First operand 16 states and 19 transitions. Second operand 3 states. [2019-11-07 00:33:39,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:33:39,787 INFO L93 Difference]: Finished difference Result 27 states and 33 transitions. [2019-11-07 00:33:39,788 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 00:33:39,788 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2019-11-07 00:33:39,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:33:39,789 INFO L225 Difference]: With dead ends: 27 [2019-11-07 00:33:39,789 INFO L226 Difference]: Without dead ends: 21 [2019-11-07 00:33:39,790 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 00:33:39,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2019-11-07 00:33:39,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 18. [2019-11-07 00:33:39,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2019-11-07 00:33:39,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 21 transitions. [2019-11-07 00:33:39,796 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 21 transitions. Word has length 12 [2019-11-07 00:33:39,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:33:39,796 INFO L462 AbstractCegarLoop]: Abstraction has 18 states and 21 transitions. [2019-11-07 00:33:39,796 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 00:33:39,796 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 21 transitions. [2019-11-07 00:33:39,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-11-07 00:33:39,797 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:33:39,797 INFO L410 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:33:39,798 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:33:39,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:33:39,798 INFO L82 PathProgramCache]: Analyzing trace with hash -1587594336, now seen corresponding path program 1 times [2019-11-07 00:33:39,798 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:33:39,799 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1995199527] [2019-11-07 00:33:39,799 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:33:39,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:33:40,090 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 00:33:40,090 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1995199527] [2019-11-07 00:33:40,091 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:33:40,091 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-07 00:33:40,091 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1198167377] [2019-11-07 00:33:40,092 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-07 00:33:40,092 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:33:40,092 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-07 00:33:40,093 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-07 00:33:40,093 INFO L87 Difference]: Start difference. First operand 18 states and 21 transitions. Second operand 5 states. [2019-11-07 00:33:40,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:33:40,256 INFO L93 Difference]: Finished difference Result 32 states and 42 transitions. [2019-11-07 00:33:40,257 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-07 00:33:40,257 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2019-11-07 00:33:40,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:33:40,258 INFO L225 Difference]: With dead ends: 32 [2019-11-07 00:33:40,258 INFO L226 Difference]: Without dead ends: 0 [2019-11-07 00:33:40,259 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-11-07 00:33:40,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-07 00:33:40,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-07 00:33:40,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-07 00:33:40,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-07 00:33:40,260 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2019-11-07 00:33:40,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:33:40,260 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-07 00:33:40,261 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-07 00:33:40,261 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-07 00:33:40,261 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-07 00:33:40,266 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-07 00:33:40,326 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2019-11-07 00:33:40,326 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-11-07 00:33:40,327 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-07 00:33:40,327 INFO L446 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2019-11-07 00:33:40,327 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-11-07 00:33:40,327 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-07 00:33:40,328 INFO L439 ceAbstractionStarter]: At program point L31(line 31) the Hoare annotation is: (<= (* 2863311531 main_~x~0) (let ((.cse0 (div main_~x~0 4294967296))) (+ (* 8589934592 (div (+ main_~x~0 (* .cse0 (- 4294967296))) 3)) (* 12297829383904690176 .cse0) 1431655765))) [2019-11-07 00:33:40,328 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 12 33) no Hoare annotation was computed. [2019-11-07 00:33:40,328 INFO L443 ceAbstractionStarter]: For program point L23(lines 23 26) no Hoare annotation was computed. [2019-11-07 00:33:40,328 INFO L439 ceAbstractionStarter]: At program point L23-2(lines 16 29) the Hoare annotation is: (or (<= (* 2863311531 main_~x~0) (let ((.cse0 (div main_~x~0 4294967296))) (+ (* 8589934592 (div (+ main_~x~0 (* .cse0 (- 4294967296))) 3)) (* 12297829383904690176 .cse0) 1431655765))) (and (<= (div main_~y~0 4294967296) 0) (<= 1 main_~y~0))) [2019-11-07 00:33:40,328 INFO L443 ceAbstractionStarter]: For program point L17(lines 17 28) no Hoare annotation was computed. [2019-11-07 00:33:40,328 INFO L443 ceAbstractionStarter]: For program point mainFINAL(lines 12 33) no Hoare annotation was computed. [2019-11-07 00:33:40,329 INFO L443 ceAbstractionStarter]: For program point L30(lines 30 31) no Hoare annotation was computed. [2019-11-07 00:33:40,329 INFO L446 ceAbstractionStarter]: At program point mainENTRY(lines 12 33) the Hoare annotation is: true [2019-11-07 00:33:40,329 INFO L443 ceAbstractionStarter]: For program point L20(lines 20 27) no Hoare annotation was computed. [2019-11-07 00:33:40,329 INFO L443 ceAbstractionStarter]: For program point L16-1(lines 16 29) no Hoare annotation was computed. [2019-11-07 00:33:40,329 INFO L443 ceAbstractionStarter]: For program point L16-3(lines 12 33) no Hoare annotation was computed. [2019-11-07 00:33:40,329 INFO L446 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(lines 6 10) the Hoare annotation is: true [2019-11-07 00:33:40,330 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 8) no Hoare annotation was computed. [2019-11-07 00:33:40,330 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(lines 6 10) no Hoare annotation was computed. [2019-11-07 00:33:40,330 INFO L443 ceAbstractionStarter]: For program point L8(line 8) no Hoare annotation was computed. [2019-11-07 00:33:40,330 INFO L443 ceAbstractionStarter]: For program point L7(lines 7 8) no Hoare annotation was computed. [2019-11-07 00:33:40,330 INFO L443 ceAbstractionStarter]: For program point L7-2(lines 6 10) no Hoare annotation was computed. [2019-11-07 00:33:40,345 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 12:33:40 BoogieIcfgContainer [2019-11-07 00:33:40,345 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-07 00:33:40,348 INFO L168 Benchmark]: Toolchain (without parser) took 1737.28 ms. Allocated memory was 137.4 MB in the beginning and 199.2 MB in the end (delta: 61.9 MB). Free memory was 101.9 MB in the beginning and 113.9 MB in the end (delta: -12.0 MB). Peak memory consumption was 49.8 MB. Max. memory is 7.1 GB. [2019-11-07 00:33:40,349 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 137.4 MB. Free memory was 120.6 MB in the beginning and 120.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-11-07 00:33:40,350 INFO L168 Benchmark]: CACSL2BoogieTranslator took 321.70 ms. Allocated memory is still 137.4 MB. Free memory was 101.7 MB in the beginning and 92.3 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 7.1 GB. [2019-11-07 00:33:40,351 INFO L168 Benchmark]: Boogie Preprocessor took 102.23 ms. Allocated memory was 137.4 MB in the beginning and 199.2 MB in the end (delta: 61.9 MB). Free memory was 92.3 MB in the beginning and 177.1 MB in the end (delta: -84.8 MB). Peak memory consumption was 14.0 MB. Max. memory is 7.1 GB. [2019-11-07 00:33:40,352 INFO L168 Benchmark]: RCFGBuilder took 264.01 ms. Allocated memory is still 199.2 MB. Free memory was 177.1 MB in the beginning and 164.8 MB in the end (delta: 12.3 MB). Peak memory consumption was 12.3 MB. Max. memory is 7.1 GB. [2019-11-07 00:33:40,353 INFO L168 Benchmark]: TraceAbstraction took 1037.19 ms. Allocated memory is still 199.2 MB. Free memory was 164.8 MB in the beginning and 113.9 MB in the end (delta: 50.9 MB). Peak memory consumption was 50.9 MB. Max. memory is 7.1 GB. [2019-11-07 00:33:40,357 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 137.4 MB. Free memory was 120.6 MB in the beginning and 120.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 321.70 ms. Allocated memory is still 137.4 MB. Free memory was 101.7 MB in the beginning and 92.3 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 102.23 ms. Allocated memory was 137.4 MB in the beginning and 199.2 MB in the end (delta: 61.9 MB). Free memory was 92.3 MB in the beginning and 177.1 MB in the end (delta: -84.8 MB). Peak memory consumption was 14.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 264.01 ms. Allocated memory is still 199.2 MB. Free memory was 177.1 MB in the beginning and 164.8 MB in the end (delta: 12.3 MB). Peak memory consumption was 12.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1037.19 ms. Allocated memory is still 199.2 MB. Free memory was 164.8 MB in the beginning and 113.9 MB in the end (delta: 50.9 MB). Peak memory consumption was 50.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 8]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 16]: Loop Invariant Derived loop invariant: 2863311531 * x <= 8589934592 * ((x + x / 4294967296 * -4294967296) / 3) + 12297829383904690176 * (x / 4294967296) + 1431655765 || (y / 4294967296 <= 0 && 1 <= y) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 23 locations, 1 error locations. Result: SAFE, OverallTime: 0.9s, OverallIterations: 3, TraceHistogramMax: 2, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 64 SDtfs, 7 SDslu, 55 SDs, 0 SdLazy, 24 SolverSat, 7 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=23occurred 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, 3 MinimizatonAttempts, 3 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 10 PreInvPairs, 13 NumberOfFragments, 59 HoareAnnotationTreeSize, 10 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 38 NumberOfCodeBlocks, 38 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 35 ConstructedInterpolants, 0 QuantifiedInterpolants, 1941 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 2/2 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...