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-lit/jm2006_variant.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 03:03:00,524 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 03:03:00,526 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 03:03:00,539 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 03:03:00,540 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 03:03:00,541 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 03:03:00,542 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 03:03:00,544 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 03:03:00,546 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 03:03:00,547 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 03:03:00,548 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 03:03:00,549 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 03:03:00,549 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 03:03:00,550 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 03:03:00,551 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 03:03:00,553 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 03:03:00,555 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 03:03:00,556 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 03:03:00,557 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 03:03:00,559 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 03:03:00,561 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 03:03:00,562 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 03:03:00,563 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 03:03:00,564 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 03:03:00,566 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-10-15 03:03:00,574 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 03:03:00,575 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 03:03:00,575 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 03:03:00,576 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 03:03:00,591 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 03:03:00,591 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 03:03:00,592 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 03:03:00,592 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 03:03:00,593 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 03:03:00,593 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 03:03:00,593 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 03:03:00,593 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 03:03:00,593 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 03:03:00,594 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 03:03:00,594 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 03:03:00,594 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 03:03:00,594 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 03:03:00,594 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 03:03:00,595 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 03:03:00,595 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 03:03:00,595 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 03:03:00,595 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 03:03:00,595 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 03:03:00,596 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 03:03:00,596 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 03:03:00,596 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 03:03:00,596 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 03:03:00,596 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 03:03:00,597 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 03:03:00,597 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 03:03:00,597 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 03:03:00,597 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 03:03:00,597 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 03:03:00,913 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 03:03:00,934 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 03:03:00,938 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 03:03:00,940 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 03:03:00,940 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 03:03:00,941 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-lit/jm2006_variant.i [2019-10-15 03:03:01,022 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a48241f7b/dfb08a0159fe48619447a582db49e60d/FLAG47d1cba3d [2019-10-15 03:03:01,521 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 03:03:01,522 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-lit/jm2006_variant.i [2019-10-15 03:03:01,529 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a48241f7b/dfb08a0159fe48619447a582db49e60d/FLAG47d1cba3d [2019-10-15 03:03:01,964 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a48241f7b/dfb08a0159fe48619447a582db49e60d [2019-10-15 03:03:01,976 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 03:03:01,978 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 03:03:01,980 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 03:03:01,981 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 03:03:01,984 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 03:03:01,994 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:03:01" (1/1) ... [2019-10-15 03:03:01,998 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@741fc40b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:03:01, skipping insertion in model container [2019-10-15 03:03:01,999 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:03:01" (1/1) ... [2019-10-15 03:03:02,007 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 03:03:02,025 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 03:03:02,212 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 03:03:02,223 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 03:03:02,242 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 03:03:02,254 INFO L192 MainTranslator]: Completed translation [2019-10-15 03:03:02,255 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:03:02 WrapperNode [2019-10-15 03:03:02,255 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 03:03:02,256 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 03:03:02,256 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 03:03:02,256 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 03:03:02,350 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:03:02" (1/1) ... [2019-10-15 03:03:02,351 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:03:02" (1/1) ... [2019-10-15 03:03:02,356 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:03:02" (1/1) ... [2019-10-15 03:03:02,356 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:03:02" (1/1) ... [2019-10-15 03:03:02,360 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:03:02" (1/1) ... [2019-10-15 03:03:02,365 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:03:02" (1/1) ... [2019-10-15 03:03:02,369 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:03:02" (1/1) ... [2019-10-15 03:03:02,371 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 03:03:02,371 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 03:03:02,372 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 03:03:02,372 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 03:03:02,373 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:03:02" (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 03:03:02,442 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 03:03:02,442 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 03:03:02,442 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-10-15 03:03:02,442 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 03:03:02,443 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 03:03:02,443 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-10-15 03:03:02,443 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-10-15 03:03:02,443 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-15 03:03:02,443 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 03:03:02,444 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 03:03:02,444 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 03:03:02,680 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 03:03:02,680 INFO L284 CfgBuilder]: Removed 1 assume(true) statements. [2019-10-15 03:03:02,682 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:03:02 BoogieIcfgContainer [2019-10-15 03:03:02,682 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 03:03:02,684 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 03:03:02,684 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 03:03:02,688 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 03:03:02,688 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 03:03:01" (1/3) ... [2019-10-15 03:03:02,691 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@539b0ca4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 03:03:02, skipping insertion in model container [2019-10-15 03:03:02,691 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:03:02" (2/3) ... [2019-10-15 03:03:02,692 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@539b0ca4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 03:03:02, skipping insertion in model container [2019-10-15 03:03:02,692 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:03:02" (3/3) ... [2019-10-15 03:03:02,694 INFO L109 eAbstractionObserver]: Analyzing ICFG jm2006_variant.i [2019-10-15 03:03:02,707 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 03:03:02,714 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 03:03:02,746 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 03:03:02,769 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 03:03:02,770 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 03:03:02,770 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 03:03:02,770 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 03:03:02,773 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 03:03:02,774 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 03:03:02,774 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 03:03:02,774 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 03:03:02,791 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states. [2019-10-15 03:03:02,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-10-15 03:03:02,796 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:03:02,796 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:03:02,798 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:03:02,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:03:02,804 INFO L82 PathProgramCache]: Analyzing trace with hash -856020882, now seen corresponding path program 1 times [2019-10-15 03:03:02,811 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:03:02,812 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1912619378] [2019-10-15 03:03:02,812 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:03:02,812 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:03:02,812 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:03:02,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:03:03,138 WARN L191 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 21 [2019-10-15 03:03:03,293 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 03:03:03,294 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1912619378] [2019-10-15 03:03:03,295 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:03:03,295 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-15 03:03:03,295 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1684155606] [2019-10-15 03:03:03,299 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-15 03:03:03,300 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:03:03,310 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-15 03:03:03,310 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-15 03:03:03,312 INFO L87 Difference]: Start difference. First operand 21 states. Second operand 7 states. [2019-10-15 03:03:03,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:03:03,581 INFO L93 Difference]: Finished difference Result 43 states and 50 transitions. [2019-10-15 03:03:03,582 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-15 03:03:03,583 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 13 [2019-10-15 03:03:03,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:03:03,593 INFO L225 Difference]: With dead ends: 43 [2019-10-15 03:03:03,593 INFO L226 Difference]: Without dead ends: 15 [2019-10-15 03:03:03,598 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2019-10-15 03:03:03,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2019-10-15 03:03:03,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2019-10-15 03:03:03,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2019-10-15 03:03:03,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2019-10-15 03:03:03,649 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 13 [2019-10-15 03:03:03,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:03:03,650 INFO L462 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2019-10-15 03:03:03,651 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-15 03:03:03,652 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2019-10-15 03:03:03,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-10-15 03:03:03,654 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:03:03,654 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:03:03,654 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:03:03,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:03:03,656 INFO L82 PathProgramCache]: Analyzing trace with hash -954924099, now seen corresponding path program 1 times [2019-10-15 03:03:03,656 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:03:03,657 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [50280093] [2019-10-15 03:03:03,657 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:03:03,657 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:03:03,658 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:03:03,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:03:04,022 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 03:03:04,023 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [50280093] [2019-10-15 03:03:04,023 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [313980862] [2019-10-15 03:03:04,024 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 03:03:04,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:03:04,081 INFO L256 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 22 conjunts are in the unsatisfiable core [2019-10-15 03:03:04,088 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 03:03:04,332 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 03:03:04,333 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 03:03:04,482 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 03:03:04,482 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [418521384] [2019-10-15 03:03:04,509 INFO L162 IcfgInterpreter]: Started Sifa with 14 locations of interest [2019-10-15 03:03:04,510 INFO L169 IcfgInterpreter]: Building call graph [2019-10-15 03:03:04,536 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-15 03:03:04,550 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-15 03:03:04,550 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-15 03:03:04,652 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 1 for LOIs [2019-10-15 03:03:04,955 INFO L199 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 6 for LOIs [2019-10-15 03:03:04,985 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 1 for LOIs [2019-10-15 03:03:04,989 INFO L183 IcfgInterpreter]: Interpretation finished [2019-10-15 03:03:05,474 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 4 imperfect interpolant sequences. [2019-10-15 03:03:05,474 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8, 9] total 25 [2019-10-15 03:03:05,474 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1794118744] [2019-10-15 03:03:05,476 INFO L442 AbstractCegarLoop]: Interpolant automaton has 25 states [2019-10-15 03:03:05,477 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:03:05,477 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2019-10-15 03:03:05,479 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=513, Unknown=0, NotChecked=0, Total=600 [2019-10-15 03:03:05,479 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand 25 states. [2019-10-15 03:03:06,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:03:06,033 INFO L93 Difference]: Finished difference Result 26 states and 28 transitions. [2019-10-15 03:03:06,033 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2019-10-15 03:03:06,034 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 14 [2019-10-15 03:03:06,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:03:06,035 INFO L225 Difference]: With dead ends: 26 [2019-10-15 03:03:06,035 INFO L226 Difference]: Without dead ends: 18 [2019-10-15 03:03:06,036 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 25 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 245 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=196, Invalid=926, Unknown=0, NotChecked=0, Total=1122 [2019-10-15 03:03:06,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2019-10-15 03:03:06,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2019-10-15 03:03:06,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2019-10-15 03:03:06,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 18 transitions. [2019-10-15 03:03:06,042 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 18 transitions. Word has length 14 [2019-10-15 03:03:06,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:03:06,042 INFO L462 AbstractCegarLoop]: Abstraction has 18 states and 18 transitions. [2019-10-15 03:03:06,042 INFO L463 AbstractCegarLoop]: Interpolant automaton has 25 states. [2019-10-15 03:03:06,043 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 18 transitions. [2019-10-15 03:03:06,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-10-15 03:03:06,043 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:03:06,044 INFO L380 BasicCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:03:06,248 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 03:03:06,249 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:03:06,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:03:06,250 INFO L82 PathProgramCache]: Analyzing trace with hash -360840146, now seen corresponding path program 2 times [2019-10-15 03:03:06,250 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:03:06,251 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1244657068] [2019-10-15 03:03:06,251 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:03:06,251 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:03:06,252 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:03:06,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:03:06,426 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-15 03:03:06,426 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1244657068] [2019-10-15 03:03:06,427 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1167985321] [2019-10-15 03:03:06,427 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 03:03:06,467 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2019-10-15 03:03:06,467 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-10-15 03:03:06,469 WARN L254 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 40 conjunts are in the unsatisfiable core [2019-10-15 03:03:06,472 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 03:03:06,680 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 03:03:06,680 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 03:03:06,885 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 03:03:06,885 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [958416556] [2019-10-15 03:03:06,887 INFO L162 IcfgInterpreter]: Started Sifa with 14 locations of interest [2019-10-15 03:03:06,887 INFO L169 IcfgInterpreter]: Building call graph [2019-10-15 03:03:06,887 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-15 03:03:06,888 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-15 03:03:06,888 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-15 03:03:06,904 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 1 for LOIs [2019-10-15 03:03:07,051 INFO L199 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 6 for LOIs [2019-10-15 03:03:07,080 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 1 for LOIs [2019-10-15 03:03:07,083 INFO L183 IcfgInterpreter]: Interpretation finished [2019-10-15 03:03:07,525 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 4 imperfect interpolant sequences. [2019-10-15 03:03:07,525 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 11, 11, 9] total 33 [2019-10-15 03:03:07,525 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [211933453] [2019-10-15 03:03:07,526 INFO L442 AbstractCegarLoop]: Interpolant automaton has 33 states [2019-10-15 03:03:07,527 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:03:07,527 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2019-10-15 03:03:07,528 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=160, Invalid=896, Unknown=0, NotChecked=0, Total=1056 [2019-10-15 03:03:07,528 INFO L87 Difference]: Start difference. First operand 18 states and 18 transitions. Second operand 33 states. [2019-10-15 03:03:08,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:03:08,175 INFO L93 Difference]: Finished difference Result 21 states and 22 transitions. [2019-10-15 03:03:08,177 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-10-15 03:03:08,177 INFO L78 Accepts]: Start accepts. Automaton has 33 states. Word has length 17 [2019-10-15 03:03:08,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:03:08,178 INFO L225 Difference]: With dead ends: 21 [2019-10-15 03:03:08,178 INFO L226 Difference]: Without dead ends: 0 [2019-10-15 03:03:08,180 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 28 SyntacticMatches, 2 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 474 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=332, Invalid=1560, Unknown=0, NotChecked=0, Total=1892 [2019-10-15 03:03:08,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-15 03:03:08,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-15 03:03:08,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-15 03:03:08,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-15 03:03:08,181 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2019-10-15 03:03:08,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:03:08,182 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-15 03:03:08,182 INFO L463 AbstractCegarLoop]: Interpolant automaton has 33 states. [2019-10-15 03:03:08,182 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-15 03:03:08,182 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-15 03:03:08,386 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 03:03:08,392 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-15 03:03:08,556 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2019-10-15 03:03:08,557 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-10-15 03:03:08,557 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-15 03:03:08,557 INFO L446 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2019-10-15 03:03:08,557 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-10-15 03:03:08,557 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-15 03:03:08,558 INFO L439 ceAbstractionStarter]: At program point L25(line 25) the Hoare annotation is: (let ((.cse2 (+ main_~y~0 main_~z~0))) (let ((.cse0 (<= .cse2 0)) (.cse1 (<= 0 .cse2))) (or (and (= main_~i~0 main_~x~0) .cse0 .cse1 (= main_~i~0 0)) (and (= main_~i~0 main_~j~0) (<= 0 main_~i~0) (<= 0 main_~z~0) (<= main_~j~0 1000000) .cse0 .cse1 (<= main_~x~0 0) (<= 0 main_~x~0))))) [2019-10-15 03:03:08,558 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 10 28) no Hoare annotation was computed. [2019-10-15 03:03:08,558 INFO L439 ceAbstractionStarter]: At program point L19-2(lines 19 23) the Hoare annotation is: (let ((.cse1 (+ main_~i~0 main_~y~0 main_~z~0)) (.cse0 (+ main_~x~0 main_~j~0))) (and (<= 0 main_~j~0) (<= .cse0 .cse1) (<= 0 main_~i~0) (<= main_~y~0 2147483647) (<= main_~i~0 1000000) (<= 0 main_~z~0) (<= .cse1 .cse0) (<= main_~x~0 1000000) (<= main_~j~0 2147483647))) [2019-10-15 03:03:08,558 INFO L443 ceAbstractionStarter]: For program point L19-3(lines 10 28) no Hoare annotation was computed. [2019-10-15 03:03:08,558 INFO L443 ceAbstractionStarter]: For program point L15(line 15) no Hoare annotation was computed. [2019-10-15 03:03:08,559 INFO L443 ceAbstractionStarter]: For program point mainFINAL(lines 10 28) no Hoare annotation was computed. [2019-10-15 03:03:08,559 INFO L446 ceAbstractionStarter]: At program point mainENTRY(lines 10 28) the Hoare annotation is: true [2019-10-15 03:03:08,559 INFO L443 ceAbstractionStarter]: For program point L24(lines 24 26) no Hoare annotation was computed. [2019-10-15 03:03:08,559 INFO L443 ceAbstractionStarter]: For program point L14(line 14) no Hoare annotation was computed. [2019-10-15 03:03:08,559 INFO L446 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(lines 3 8) the Hoare annotation is: true [2019-10-15 03:03:08,559 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(lines 3 8) no Hoare annotation was computed. [2019-10-15 03:03:08,560 INFO L443 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2019-10-15 03:03:08,560 INFO L443 ceAbstractionStarter]: For program point L4(lines 4 6) no Hoare annotation was computed. [2019-10-15 03:03:08,560 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2019-10-15 03:03:08,560 INFO L443 ceAbstractionStarter]: For program point L4-2(lines 3 8) no Hoare annotation was computed. [2019-10-15 03:03:08,577 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 03:03:08 BoogieIcfgContainer [2019-10-15 03:03:08,577 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-15 03:03:08,579 INFO L168 Benchmark]: Toolchain (without parser) took 6601.65 ms. Allocated memory was 141.0 MB in the beginning and 299.9 MB in the end (delta: 158.9 MB). Free memory was 97.5 MB in the beginning and 218.5 MB in the end (delta: -121.0 MB). Peak memory consumption was 37.9 MB. Max. memory is 7.1 GB. [2019-10-15 03:03:08,580 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 141.0 MB. Free memory was 116.0 MB in the beginning and 115.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-10-15 03:03:08,581 INFO L168 Benchmark]: CACSL2BoogieTranslator took 275.11 ms. Allocated memory is still 141.0 MB. Free memory was 97.3 MB in the beginning and 87.9 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 7.1 GB. [2019-10-15 03:03:08,582 INFO L168 Benchmark]: Boogie Preprocessor took 115.25 ms. Allocated memory was 141.0 MB in the beginning and 198.7 MB in the end (delta: 57.7 MB). Free memory was 87.9 MB in the beginning and 176.7 MB in the end (delta: -88.8 MB). Peak memory consumption was 10.1 MB. Max. memory is 7.1 GB. [2019-10-15 03:03:08,583 INFO L168 Benchmark]: RCFGBuilder took 311.00 ms. Allocated memory is still 198.7 MB. Free memory was 176.7 MB in the beginning and 163.9 MB in the end (delta: 12.8 MB). Peak memory consumption was 12.8 MB. Max. memory is 7.1 GB. [2019-10-15 03:03:08,584 INFO L168 Benchmark]: TraceAbstraction took 5893.48 ms. Allocated memory was 198.7 MB in the beginning and 299.9 MB in the end (delta: 101.2 MB). Free memory was 163.9 MB in the beginning and 218.5 MB in the end (delta: -54.5 MB). Peak memory consumption was 46.6 MB. Max. memory is 7.1 GB. [2019-10-15 03:03:08,587 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 141.0 MB. Free memory was 116.0 MB in the beginning and 115.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 275.11 ms. Allocated memory is still 141.0 MB. Free memory was 97.3 MB in the beginning and 87.9 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 115.25 ms. Allocated memory was 141.0 MB in the beginning and 198.7 MB in the end (delta: 57.7 MB). Free memory was 87.9 MB in the beginning and 176.7 MB in the end (delta: -88.8 MB). Peak memory consumption was 10.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 311.00 ms. Allocated memory is still 198.7 MB. Free memory was 176.7 MB in the beginning and 163.9 MB in the end (delta: 12.8 MB). Peak memory consumption was 12.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 5893.48 ms. Allocated memory was 198.7 MB in the beginning and 299.9 MB in the end (delta: 101.2 MB). Free memory was 163.9 MB in the beginning and 218.5 MB in the end (delta: -54.5 MB). Peak memory consumption was 46.6 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: 19]: Loop Invariant Derived loop invariant: (((((((0 <= j && x + j <= i + y + z) && 0 <= i) && y <= 2147483647) && i <= 1000000) && 0 <= z) && i + y + z <= x + j) && x <= 1000000) && j <= 2147483647 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 21 locations, 1 error locations. Result: SAFE, OverallTime: 5.7s, OverallIterations: 3, TraceHistogramMax: 4, AutomataDifference: 1.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, HoareTripleCheckerStatistics: 36 SDtfs, 103 SDslu, 247 SDs, 0 SdLazy, 323 SolverSat, 45 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 141 GetRequests, 56 SyntacticMatches, 3 SemanticMatches, 82 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 721 ImplicationChecksByTransitivity, 3.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=21occurred 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, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 11 PreInvPairs, 20 NumberOfFragments, 90 HoareAnnotationTreeSize, 11 FomulaSimplifications, 49 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 300 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 75 NumberOfCodeBlocks, 75 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 99 ConstructedInterpolants, 0 QuantifiedInterpolants, 10353 SizeOfPredicates, 14 NumberOfNonLiveVariables, 115 ConjunctsInSsa, 62 ConjunctsInUnsatCore, 7 InterpolantComputations, 1 PerfectInterpolantSequences, 1/33 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: OVERALL_TIME[ms]: 677, ICFG_INTERPRETER_ENTERED_PROCEDURES: 8, DAG_INTERPRETER_EARLY_EXIT_QUERIES: 48, DAG_INTERPRETER_EARLY_EXITS: 0, TOOLS_POST_APPLICATIONS: 26, TOOLS_POST_TIME[ms]: 18, TOOLS_POST_CALL_APPLICATIONS: 10, TOOLS_POST_CALL_TIME[ms]: 20, TOOLS_POST_RETURN_APPLICATIONS: 4, TOOLS_POST_RETURN_TIME[ms]: 1, TOOLS_QUANTIFIERELIM_APPLICATIONS: 40, TOOLS_QUANTIFIERELIM_TIME[ms]: 29, TOOLS_QUANTIFIERELIM_MAX_TIME[ms]: 14, FLUID_QUERY_TIME[ms]: 4, FLUID_QUERIES: 54, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 42, DOMAIN_JOIN_TIME[ms]: 353, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME[ms]: 0, DOMAIN_WIDEN_APPLICATIONS: 4, DOMAIN_WIDEN_TIME[ms]: 123, DOMAIN_ISSUBSETEQ_APPLICATIONS: 6, DOMAIN_ISSUBSETEQ_TIME[ms]: 13, DOMAIN_ISBOTTOM_APPLICATIONS: 2, DOMAIN_ISBOTTOM_TIME[ms]: 6, LOOP_SUMMARIZER_APPLICATIONS: 2, LOOP_SUMMARIZER_CACHE_MISSES: 2, LOOP_SUMMARIZER_OVERALL_TIME[ms]: 290, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 290, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 6, CALL_SUMMARIZER_APPLICATIONS: 4, CALL_SUMMARIZER_CACHE_MISSES: 2, CALL_SUMMARIZER_OVERALL_TIME[ms]: 13, CALL_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 13, PROCEDURE_GRAPH_BUILDER_TIME[ms]: 6, PATH_EXPR_TIME[ms]: 5, REGEX_TO_DAG_TIME[ms]: 4, DAG_COMPRESSION_TIME[ms]: 28, DAG_COMPRESSION_PROCESSED_NODES: 152, DAG_COMPRESSION_RETAINED_NODES: 96, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...