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-acceleration/simple_3-2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 21:05:33,936 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 21:05:33,939 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 21:05:33,958 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 21:05:33,959 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 21:05:33,961 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 21:05:33,963 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 21:05:33,977 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 21:05:33,979 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 21:05:33,980 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 21:05:33,982 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 21:05:33,984 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 21:05:33,984 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 21:05:33,987 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 21:05:33,990 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 21:05:33,992 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 21:05:33,994 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 21:05:33,997 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 21:05:33,999 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 21:05:34,005 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 21:05:34,010 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 21:05:34,014 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 21:05:34,017 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 21:05:34,018 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 21:05:34,022 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-10-13 21:05:34,027 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 21:05:34,029 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 21:05:34,030 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 21:05:34,031 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 21:05:34,032 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 21:05:34,032 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 21:05:34,033 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 21:05:34,033 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 21:05:34,034 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 21:05:34,035 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 21:05:34,036 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 21:05:34,037 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 [2019-10-13 21:05:34,057 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 21:05:34,057 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 21:05:34,060 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 21:05:34,060 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 21:05:34,060 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 21:05:34,060 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 21:05:34,060 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 21:05:34,061 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 21:05:34,061 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 21:05:34,061 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 21:05:34,062 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 21:05:34,062 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 21:05:34,063 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 21:05:34,063 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 21:05:34,063 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 21:05:34,063 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 21:05:34,064 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 21:05:34,064 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 21:05:34,064 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 21:05:34,066 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 21:05:34,066 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 21:05:34,067 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 21:05:34,068 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 21:05:34,068 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 21:05:34,068 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 21:05:34,068 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 21:05:34,069 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 21:05:34,069 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 21:05:34,069 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 [2019-10-13 21:05:34,351 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 21:05:34,375 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 21:05:34,379 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 21:05:34,380 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 21:05:34,381 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 21:05:34,381 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-acceleration/simple_3-2.c [2019-10-13 21:05:34,461 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cb0e99643/d50cfa21492c43fabf647f0c216b1db6/FLAGfcc8bce00 [2019-10-13 21:05:34,992 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 21:05:34,995 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-acceleration/simple_3-2.c [2019-10-13 21:05:35,001 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cb0e99643/d50cfa21492c43fabf647f0c216b1db6/FLAGfcc8bce00 [2019-10-13 21:05:35,351 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cb0e99643/d50cfa21492c43fabf647f0c216b1db6 [2019-10-13 21:05:35,361 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 21:05:35,363 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 21:05:35,364 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 21:05:35,364 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 21:05:35,368 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 21:05:35,369 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:05:35" (1/1) ... [2019-10-13 21:05:35,372 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@49b5e6bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:05:35, skipping insertion in model container [2019-10-13 21:05:35,372 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:05:35" (1/1) ... [2019-10-13 21:05:35,380 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 21:05:35,396 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 21:05:35,549 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 21:05:35,553 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 21:05:35,569 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 21:05:35,583 INFO L192 MainTranslator]: Completed translation [2019-10-13 21:05:35,584 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:05:35 WrapperNode [2019-10-13 21:05:35,584 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 21:05:35,585 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 21:05:35,585 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 21:05:35,585 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 21:05:35,675 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:05:35" (1/1) ... [2019-10-13 21:05:35,676 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:05:35" (1/1) ... [2019-10-13 21:05:35,680 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:05:35" (1/1) ... [2019-10-13 21:05:35,681 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:05:35" (1/1) ... [2019-10-13 21:05:35,684 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:05:35" (1/1) ... [2019-10-13 21:05:35,688 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:05:35" (1/1) ... [2019-10-13 21:05:35,688 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:05:35" (1/1) ... [2019-10-13 21:05:35,689 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 21:05:35,690 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 21:05:35,690 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 21:05:35,690 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 21:05:35,691 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:05:35" (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 [2019-10-13 21:05:35,745 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 21:05:35,746 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 21:05:35,746 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-10-13 21:05:35,746 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 21:05:35,746 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 21:05:35,746 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ushort [2019-10-13 21:05:35,746 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-10-13 21:05:35,747 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 21:05:35,747 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 21:05:35,747 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 21:05:35,906 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 21:05:35,906 INFO L284 CfgBuilder]: Removed 1 assume(true) statements. [2019-10-13 21:05:35,907 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:05:35 BoogieIcfgContainer [2019-10-13 21:05:35,908 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 21:05:35,909 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 21:05:35,909 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 21:05:35,912 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 21:05:35,913 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 09:05:35" (1/3) ... [2019-10-13 21:05:35,913 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44e085a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:05:35, skipping insertion in model container [2019-10-13 21:05:35,914 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:05:35" (2/3) ... [2019-10-13 21:05:35,914 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44e085a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:05:35, skipping insertion in model container [2019-10-13 21:05:35,914 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:05:35" (3/3) ... [2019-10-13 21:05:35,916 INFO L109 eAbstractionObserver]: Analyzing ICFG simple_3-2.c [2019-10-13 21:05:35,926 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 21:05:35,934 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 21:05:35,944 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 21:05:35,969 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 21:05:35,970 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 21:05:35,970 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 21:05:35,970 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 21:05:35,970 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 21:05:35,970 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 21:05:35,970 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 21:05:35,971 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 21:05:35,989 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states. [2019-10-13 21:05:35,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-10-13 21:05:35,995 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:05:35,996 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:05:35,998 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:05:36,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:05:36,004 INFO L82 PathProgramCache]: Analyzing trace with hash 1846144830, now seen corresponding path program 1 times [2019-10-13 21:05:36,013 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:05:36,013 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1855328335] [2019-10-13 21:05:36,013 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:05:36,014 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:05:36,014 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:05:36,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:05:36,446 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 21:05:36,447 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1855328335] [2019-10-13 21:05:36,448 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:05:36,448 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-13 21:05:36,449 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1099903333] [2019-10-13 21:05:36,457 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-13 21:05:36,459 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:05:36,470 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-13 21:05:36,471 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-13 21:05:36,473 INFO L87 Difference]: Start difference. First operand 17 states. Second operand 5 states. [2019-10-13 21:05:36,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:05:36,566 INFO L93 Difference]: Finished difference Result 26 states and 29 transitions. [2019-10-13 21:05:36,567 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-13 21:05:36,569 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2019-10-13 21:05:36,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:05:36,576 INFO L225 Difference]: With dead ends: 26 [2019-10-13 21:05:36,577 INFO L226 Difference]: Without dead ends: 0 [2019-10-13 21:05:36,581 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-10-13 21:05:36,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-13 21:05:36,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-13 21:05:36,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-13 21:05:36,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-13 21:05:36,612 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 10 [2019-10-13 21:05:36,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:05:36,613 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-13 21:05:36,613 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-13 21:05:36,613 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-13 21:05:36,614 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-13 21:05:36,619 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-13 21:05:36,695 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2019-10-13 21:05:36,695 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-10-13 21:05:36,695 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-13 21:05:36,695 INFO L446 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2019-10-13 21:05:36,696 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-10-13 21:05:36,696 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-13 21:05:36,696 INFO L446 ceAbstractionStarter]: At program point mainENTRY(lines 11 20) the Hoare annotation is: true [2019-10-13 21:05:36,697 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 11 20) no Hoare annotation was computed. [2019-10-13 21:05:36,697 INFO L439 ceAbstractionStarter]: At program point L15-2(lines 15 17) the Hoare annotation is: (and (<= main_~x~0 (let ((.cse0 (div main_~x~0 2))) (+ (* 2 .cse0) (* 4294967296 (div (+ main_~x~0 (* .cse0 (- 2))) 4294967296))))) (<= 0 main_~x~0)) [2019-10-13 21:05:36,698 INFO L443 ceAbstractionStarter]: For program point mainFINAL(lines 11 20) no Hoare annotation was computed. [2019-10-13 21:05:36,698 INFO L439 ceAbstractionStarter]: At program point L15-3(lines 15 17) the Hoare annotation is: (and (<= main_~x~0 (let ((.cse0 (div main_~x~0 2))) (+ (* 2 .cse0) (* 4294967296 (div (+ main_~x~0 (* .cse0 (- 2))) 4294967296))))) (<= 0 main_~x~0)) [2019-10-13 21:05:36,699 INFO L446 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(lines 4 9) the Hoare annotation is: true [2019-10-13 21:05:36,699 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(lines 4 9) no Hoare annotation was computed. [2019-10-13 21:05:36,699 INFO L443 ceAbstractionStarter]: For program point L6(line 6) no Hoare annotation was computed. [2019-10-13 21:05:36,699 INFO L443 ceAbstractionStarter]: For program point L5(lines 5 7) no Hoare annotation was computed. [2019-10-13 21:05:36,700 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 6) no Hoare annotation was computed. [2019-10-13 21:05:36,700 INFO L443 ceAbstractionStarter]: For program point L5-2(lines 4 9) no Hoare annotation was computed. [2019-10-13 21:05:36,721 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 09:05:36 BoogieIcfgContainer [2019-10-13 21:05:36,722 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-13 21:05:36,727 INFO L168 Benchmark]: Toolchain (without parser) took 1360.69 ms. Allocated memory was 138.9 MB in the beginning and 202.9 MB in the end (delta: 64.0 MB). Free memory was 104.2 MB in the beginning and 135.5 MB in the end (delta: -31.3 MB). Peak memory consumption was 32.7 MB. Max. memory is 7.1 GB. [2019-10-13 21:05:36,728 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 138.9 MB. Free memory was 122.2 MB in the beginning and 122.0 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-10-13 21:05:36,731 INFO L168 Benchmark]: CACSL2BoogieTranslator took 220.47 ms. Allocated memory is still 138.9 MB. Free memory was 104.0 MB in the beginning and 94.7 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 7.1 GB. [2019-10-13 21:05:36,734 INFO L168 Benchmark]: Boogie Preprocessor took 104.69 ms. Allocated memory was 138.9 MB in the beginning and 202.9 MB in the end (delta: 64.0 MB). Free memory was 94.7 MB in the beginning and 181.7 MB in the end (delta: -87.0 MB). Peak memory consumption was 13.8 MB. Max. memory is 7.1 GB. [2019-10-13 21:05:36,735 INFO L168 Benchmark]: RCFGBuilder took 217.97 ms. Allocated memory is still 202.9 MB. Free memory was 181.7 MB in the beginning and 170.9 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.8 MB. Max. memory is 7.1 GB. [2019-10-13 21:05:36,737 INFO L168 Benchmark]: TraceAbstraction took 812.92 ms. Allocated memory is still 202.9 MB. Free memory was 170.9 MB in the beginning and 135.5 MB in the end (delta: 35.4 MB). Peak memory consumption was 35.4 MB. Max. memory is 7.1 GB. [2019-10-13 21:05:36,748 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 138.9 MB. Free memory was 122.2 MB in the beginning and 122.0 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 220.47 ms. Allocated memory is still 138.9 MB. Free memory was 104.0 MB in the beginning and 94.7 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 104.69 ms. Allocated memory was 138.9 MB in the beginning and 202.9 MB in the end (delta: 64.0 MB). Free memory was 94.7 MB in the beginning and 181.7 MB in the end (delta: -87.0 MB). Peak memory consumption was 13.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 217.97 ms. Allocated memory is still 202.9 MB. Free memory was 181.7 MB in the beginning and 170.9 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 812.92 ms. Allocated memory is still 202.9 MB. Free memory was 170.9 MB in the beginning and 135.5 MB in the end (delta: 35.4 MB). Peak memory consumption was 35.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 6]: 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: 15]: Loop Invariant Derived loop invariant: x <= 2 * (x / 2) + 4294967296 * ((x + x / 2 * -2) / 4294967296) && 0 <= x - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 17 locations, 1 error locations. Result: SAFE, OverallTime: 0.7s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 10 SDtfs, 6 SDslu, 25 SDs, 0 SdLazy, 13 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=17occurred 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, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 8 PreInvPairs, 9 NumberOfFragments, 51 HoareAnnotationTreeSize, 8 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 10 NumberOfCodeBlocks, 10 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 531 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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...