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 --traceabstraction.trace.refinement.strategy SIFA_TAIPAN --sifa.abstract.domain CompoundDomain --rcfgbuilder.size.of.a.code.block LoopFreeBlock --sifa.call.summarizer TopInputCallSummarizer --sifa.fluid SizeLimitFluid --sifa.simplification.technique SIMPLIFY_QUICK -i ../../../trunk/examples/svcomp/loop-acceleration/array_3-1.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 03:00:57,560 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 03:00:57,563 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 03:00:57,576 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 03:00:57,576 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 03:00:57,578 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 03:00:57,580 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 03:00:57,590 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 03:00:57,592 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 03:00:57,593 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 03:00:57,593 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 03:00:57,594 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 03:00:57,595 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 03:00:57,596 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 03:00:57,597 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 03:00:57,600 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 03:00:57,602 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 03:00:57,606 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 03:00:57,607 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 03:00:57,612 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 03:00:57,616 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 03:00:57,618 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 03:00:57,619 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 03:00:57,620 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 03:00:57,622 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-10-15 03:00:57,629 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 03:00:57,630 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 03:00:57,630 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 03:00:57,631 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 [2019-10-15 03:00:57,645 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 03:00:57,645 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 03:00:57,646 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 03:00:57,646 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 03:00:57,647 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 03:00:57,647 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 03:00:57,647 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 03:00:57,647 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 03:00:57,647 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 03:00:57,648 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 03:00:57,648 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 03:00:57,648 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 03:00:57,648 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 03:00:57,648 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 03:00:57,648 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 03:00:57,649 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 03:00:57,649 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 03:00:57,649 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 03:00:57,649 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 03:00:57,649 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 03:00:57,650 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 03:00:57,650 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 03:00:57,650 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 03:00:57,650 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 03:00:57,651 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 03:00:57,651 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 03:00:57,651 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 03:00:57,651 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 03:00:57,651 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> SIFA_TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> CompoundDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> LoopFreeBlock Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Call Summarizer -> TopInputCallSummarizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_QUICK [2019-10-15 03:00:57,923 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 03:00:57,944 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 03:00:57,948 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 03:00:57,950 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 03:00:57,950 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 03:00:57,951 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-acceleration/array_3-1.i [2019-10-15 03:00:58,017 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/128b7973a/cc368f4b664b415fa1b8267cfb2ccb54/FLAGc7d7c7eab [2019-10-15 03:00:58,475 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 03:00:58,475 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-acceleration/array_3-1.i [2019-10-15 03:00:58,482 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/128b7973a/cc368f4b664b415fa1b8267cfb2ccb54/FLAGc7d7c7eab [2019-10-15 03:00:58,895 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/128b7973a/cc368f4b664b415fa1b8267cfb2ccb54 [2019-10-15 03:00:58,906 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 03:00:58,908 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 03:00:58,909 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 03:00:58,909 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 03:00:58,913 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 03:00:58,914 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:00:58" (1/1) ... [2019-10-15 03:00:58,917 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6836b2f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:00:58, skipping insertion in model container [2019-10-15 03:00:58,917 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:00:58" (1/1) ... [2019-10-15 03:00:58,925 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 03:00:58,943 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 03:00:59,139 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 03:00:59,150 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 03:00:59,177 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 03:00:59,200 INFO L192 MainTranslator]: Completed translation [2019-10-15 03:00:59,201 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:00:59 WrapperNode [2019-10-15 03:00:59,201 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 03:00:59,202 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 03:00:59,202 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 03:00:59,202 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 03:00:59,313 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:00:59" (1/1) ... [2019-10-15 03:00:59,314 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:00:59" (1/1) ... [2019-10-15 03:00:59,320 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:00:59" (1/1) ... [2019-10-15 03:00:59,321 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:00:59" (1/1) ... [2019-10-15 03:00:59,326 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:00:59" (1/1) ... [2019-10-15 03:00:59,331 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:00:59" (1/1) ... [2019-10-15 03:00:59,333 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:00:59" (1/1) ... [2019-10-15 03:00:59,335 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 03:00:59,335 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 03:00:59,335 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 03:00:59,336 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 03:00:59,336 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:00:59" (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 [2019-10-15 03:00:59,393 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 03:00:59,394 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 03:00:59,394 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-10-15 03:00:59,394 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 03:00:59,394 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 03:00:59,394 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-15 03:00:59,394 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-10-15 03:00:59,395 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 03:00:59,395 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-15 03:00:59,395 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-15 03:00:59,395 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-15 03:00:59,395 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-15 03:00:59,395 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 03:00:59,396 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 03:00:59,651 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 03:00:59,651 INFO L284 CfgBuilder]: Removed 2 assume(true) statements. [2019-10-15 03:00:59,652 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:00:59 BoogieIcfgContainer [2019-10-15 03:00:59,653 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 03:00:59,654 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 03:00:59,654 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 03:00:59,657 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 03:00:59,657 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 03:00:58" (1/3) ... [2019-10-15 03:00:59,658 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1211f229 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 03:00:59, skipping insertion in model container [2019-10-15 03:00:59,658 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:00:59" (2/3) ... [2019-10-15 03:00:59,658 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1211f229 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 03:00:59, skipping insertion in model container [2019-10-15 03:00:59,658 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:00:59" (3/3) ... [2019-10-15 03:00:59,660 INFO L109 eAbstractionObserver]: Analyzing ICFG array_3-1.i [2019-10-15 03:00:59,671 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 03:00:59,699 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 03:00:59,715 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 03:00:59,742 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 03:00:59,742 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 03:00:59,742 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 03:00:59,742 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 03:00:59,743 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 03:00:59,743 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 03:00:59,743 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 03:00:59,743 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 03:00:59,760 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states. [2019-10-15 03:00:59,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-10-15 03:00:59,768 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:00:59,769 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:00:59,772 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:00:59,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:00:59,778 INFO L82 PathProgramCache]: Analyzing trace with hash 736787156, now seen corresponding path program 1 times [2019-10-15 03:00:59,788 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:00:59,789 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1521765588] [2019-10-15 03:00:59,789 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:00:59,789 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:00:59,789 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:00:59,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:00:59,915 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 03:00:59,916 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1521765588] [2019-10-15 03:00:59,916 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:00:59,916 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-15 03:00:59,917 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1571653073] [2019-10-15 03:00:59,921 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-15 03:00:59,922 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:00:59,935 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-15 03:00:59,936 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 03:00:59,938 INFO L87 Difference]: Start difference. First operand 20 states. Second operand 2 states. [2019-10-15 03:00:59,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:00:59,960 INFO L93 Difference]: Finished difference Result 31 states and 36 transitions. [2019-10-15 03:00:59,960 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-15 03:00:59,961 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2019-10-15 03:00:59,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:00:59,969 INFO L225 Difference]: With dead ends: 31 [2019-10-15 03:00:59,969 INFO L226 Difference]: Without dead ends: 14 [2019-10-15 03:00:59,973 INFO L600 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 [2019-10-15 03:00:59,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2019-10-15 03:01:00,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2019-10-15 03:01:00,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2019-10-15 03:01:00,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 16 transitions. [2019-10-15 03:01:00,008 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 16 transitions. Word has length 11 [2019-10-15 03:01:00,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:01:00,009 INFO L462 AbstractCegarLoop]: Abstraction has 14 states and 16 transitions. [2019-10-15 03:01:00,009 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-15 03:01:00,009 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2019-10-15 03:01:00,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-10-15 03:01:00,010 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:01:00,010 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:01:00,011 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:01:00,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:01:00,012 INFO L82 PathProgramCache]: Analyzing trace with hash 936572058, now seen corresponding path program 1 times [2019-10-15 03:01:00,012 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:01:00,012 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1775557038] [2019-10-15 03:01:00,013 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:01:00,013 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:01:00,013 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:01:00,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:01:00,073 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 03:01:00,074 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1775557038] [2019-10-15 03:01:00,074 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:01:00,074 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 03:01:00,075 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [22907976] [2019-10-15 03:01:00,077 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 03:01:00,077 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:01:00,078 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 03:01:00,078 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:01:00,078 INFO L87 Difference]: Start difference. First operand 14 states and 16 transitions. Second operand 3 states. [2019-10-15 03:01:00,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:01:00,107 INFO L93 Difference]: Finished difference Result 27 states and 33 transitions. [2019-10-15 03:01:00,107 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 03:01:00,108 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2019-10-15 03:01:00,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:01:00,110 INFO L225 Difference]: With dead ends: 27 [2019-10-15 03:01:00,111 INFO L226 Difference]: Without dead ends: 19 [2019-10-15 03:01:00,112 INFO L600 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 [2019-10-15 03:01:00,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2019-10-15 03:01:00,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 18. [2019-10-15 03:01:00,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2019-10-15 03:01:00,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 21 transitions. [2019-10-15 03:01:00,120 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 21 transitions. Word has length 12 [2019-10-15 03:01:00,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:01:00,120 INFO L462 AbstractCegarLoop]: Abstraction has 18 states and 21 transitions. [2019-10-15 03:01:00,121 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 03:01:00,121 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 21 transitions. [2019-10-15 03:01:00,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-10-15 03:01:00,122 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:01:00,122 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:01:00,123 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:01:00,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:01:00,125 INFO L82 PathProgramCache]: Analyzing trace with hash 758685559, now seen corresponding path program 1 times [2019-10-15 03:01:00,125 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:01:00,126 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [183172735] [2019-10-15 03:01:00,126 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:01:00,126 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:01:00,127 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:01:00,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:01:00,266 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-15 03:01:00,267 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [183172735] [2019-10-15 03:01:00,269 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:01:00,269 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-15 03:01:00,270 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [798140396] [2019-10-15 03:01:00,271 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-15 03:01:00,271 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:01:00,272 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-15 03:01:00,272 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-15 03:01:00,272 INFO L87 Difference]: Start difference. First operand 18 states and 21 transitions. Second operand 5 states. [2019-10-15 03:01:00,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:01:00,345 INFO L93 Difference]: Finished difference Result 23 states and 25 transitions. [2019-10-15 03:01:00,346 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-15 03:01:00,346 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2019-10-15 03:01:00,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:01:00,347 INFO L225 Difference]: With dead ends: 23 [2019-10-15 03:01:00,348 INFO L226 Difference]: Without dead ends: 18 [2019-10-15 03:01:00,348 INFO L600 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 [2019-10-15 03:01:00,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2019-10-15 03:01:00,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2019-10-15 03:01:00,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2019-10-15 03:01:00,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 20 transitions. [2019-10-15 03:01:00,354 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 20 transitions. Word has length 13 [2019-10-15 03:01:00,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:01:00,355 INFO L462 AbstractCegarLoop]: Abstraction has 18 states and 20 transitions. [2019-10-15 03:01:00,355 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-15 03:01:00,355 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 20 transitions. [2019-10-15 03:01:00,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-10-15 03:01:00,356 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:01:00,356 INFO L380 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:01:00,356 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:01:00,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:01:00,357 INFO L82 PathProgramCache]: Analyzing trace with hash -231883635, now seen corresponding path program 1 times [2019-10-15 03:01:00,357 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:01:00,358 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2114687535] [2019-10-15 03:01:00,358 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:01:00,358 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:01:00,358 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:01:00,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:01:00,461 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-15 03:01:00,462 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2114687535] [2019-10-15 03:01:00,465 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:01:00,466 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-15 03:01:00,466 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1524971320] [2019-10-15 03:01:00,467 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-15 03:01:00,467 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:01:00,467 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-15 03:01:00,468 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-15 03:01:00,468 INFO L87 Difference]: Start difference. First operand 18 states and 20 transitions. Second operand 5 states. [2019-10-15 03:01:00,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:01:00,524 INFO L93 Difference]: Finished difference Result 18 states and 20 transitions. [2019-10-15 03:01:00,525 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-15 03:01:00,525 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2019-10-15 03:01:00,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:01:00,525 INFO L225 Difference]: With dead ends: 18 [2019-10-15 03:01:00,526 INFO L226 Difference]: Without dead ends: 0 [2019-10-15 03:01:00,526 INFO L600 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 [2019-10-15 03:01:00,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-15 03:01:00,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-15 03:01:00,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-15 03:01:00,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-15 03:01:00,528 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 16 [2019-10-15 03:01:00,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:01:00,528 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-15 03:01:00,528 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-15 03:01:00,529 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-15 03:01:00,529 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-15 03:01:00,534 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-15 03:01:00,596 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2019-10-15 03:01:00,596 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-10-15 03:01:00,596 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-15 03:01:00,597 INFO L446 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2019-10-15 03:01:00,597 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-10-15 03:01:00,597 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-15 03:01:00,597 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 9 23) no Hoare annotation was computed. [2019-10-15 03:01:00,597 INFO L443 ceAbstractionStarter]: For program point L17-1(lines 17 21) no Hoare annotation was computed. [2019-10-15 03:01:00,597 INFO L439 ceAbstractionStarter]: At program point L17-4(lines 17 21) the Hoare annotation is: (<= main_~i~0 1023) [2019-10-15 03:01:00,598 INFO L439 ceAbstractionStarter]: At program point L17-5(lines 17 21) the Hoare annotation is: (<= main_~i~0 1023) [2019-10-15 03:01:00,598 INFO L446 ceAbstractionStarter]: At program point L13-3(lines 13 15) the Hoare annotation is: true [2019-10-15 03:01:00,598 INFO L446 ceAbstractionStarter]: At program point mainENTRY(lines 9 23) the Hoare annotation is: true [2019-10-15 03:01:00,598 INFO L443 ceAbstractionStarter]: For program point L22(line 22) no Hoare annotation was computed. [2019-10-15 03:01:00,598 INFO L443 ceAbstractionStarter]: For program point L18(lines 18 20) no Hoare annotation was computed. [2019-10-15 03:01:00,598 INFO L446 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(lines 3 8) the Hoare annotation is: true [2019-10-15 03:01:00,599 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(lines 3 8) no Hoare annotation was computed. [2019-10-15 03:01:00,599 INFO L443 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2019-10-15 03:01:00,599 INFO L443 ceAbstractionStarter]: For program point L4(lines 4 6) no Hoare annotation was computed. [2019-10-15 03:01:00,599 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2019-10-15 03:01:00,599 INFO L443 ceAbstractionStarter]: For program point L4-2(lines 3 8) no Hoare annotation was computed. [2019-10-15 03:01:00,617 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 03:01:00 BoogieIcfgContainer [2019-10-15 03:01:00,617 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-15 03:01:00,621 INFO L168 Benchmark]: Toolchain (without parser) took 1711.57 ms. Allocated memory was 138.9 MB in the beginning and 202.9 MB in the end (delta: 64.0 MB). Free memory was 102.3 MB in the beginning and 115.1 MB in the end (delta: -12.8 MB). Peak memory consumption was 51.2 MB. Max. memory is 7.1 GB. [2019-10-15 03:01:00,623 INFO L168 Benchmark]: CDTParser took 1.21 ms. Allocated memory is still 138.9 MB. Free memory was 120.5 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. [2019-10-15 03:01:00,626 INFO L168 Benchmark]: CACSL2BoogieTranslator took 292.67 ms. Allocated memory is still 138.9 MB. Free memory was 101.9 MB in the beginning and 92.2 MB in the end (delta: 9.7 MB). Peak memory consumption was 9.7 MB. Max. memory is 7.1 GB. [2019-10-15 03:01:00,627 INFO L168 Benchmark]: Boogie Preprocessor took 133.16 ms. Allocated memory was 138.9 MB in the beginning and 202.9 MB in the end (delta: 64.0 MB). Free memory was 92.2 MB in the beginning and 181.1 MB in the end (delta: -89.0 MB). Peak memory consumption was 13.5 MB. Max. memory is 7.1 GB. [2019-10-15 03:01:00,629 INFO L168 Benchmark]: RCFGBuilder took 317.38 ms. Allocated memory is still 202.9 MB. Free memory was 180.5 MB in the beginning and 164.9 MB in the end (delta: 15.5 MB). Peak memory consumption was 15.5 MB. Max. memory is 7.1 GB. [2019-10-15 03:01:00,636 INFO L168 Benchmark]: TraceAbstraction took 963.51 ms. Allocated memory is still 202.9 MB. Free memory was 164.9 MB in the beginning and 115.1 MB in the end (delta: 49.9 MB). Peak memory consumption was 49.9 MB. Max. memory is 7.1 GB. [2019-10-15 03:01:00,643 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.21 ms. Allocated memory is still 138.9 MB. Free memory was 120.5 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 292.67 ms. Allocated memory is still 138.9 MB. Free memory was 101.9 MB in the beginning and 92.2 MB in the end (delta: 9.7 MB). Peak memory consumption was 9.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 133.16 ms. Allocated memory was 138.9 MB in the beginning and 202.9 MB in the end (delta: 64.0 MB). Free memory was 92.2 MB in the beginning and 181.1 MB in the end (delta: -89.0 MB). Peak memory consumption was 13.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 317.38 ms. Allocated memory is still 202.9 MB. Free memory was 180.5 MB in the beginning and 164.9 MB in the end (delta: 15.5 MB). Peak memory consumption was 15.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 963.51 ms. Allocated memory is still 202.9 MB. Free memory was 164.9 MB in the beginning and 115.1 MB in the end (delta: 49.9 MB). Peak memory consumption was 49.9 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: 17]: Loop Invariant Derived loop invariant: i <= 1023 - InvariantResult [Line: 13]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 20 locations, 1 error locations. Result: SAFE, OverallTime: 0.8s, OverallIterations: 4, TraceHistogramMax: 2, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 56 SDtfs, 8 SDslu, 63 SDs, 0 SdLazy, 41 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 17 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s 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, 4 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 8 LocationsWithAnnotation, 11 PreInvPairs, 16 NumberOfFragments, 12 HoareAnnotationTreeSize, 11 FomulaSimplifications, 8 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 8 FomulaSimplificationsInter, 4 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 52 NumberOfCodeBlocks, 52 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 48 ConstructedInterpolants, 0 QuantifiedInterpolants, 936 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 4/4 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...