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/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf -i ../../../trunk/examples/svcomp/floats-cdfpl/square_8.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-10 01:29:55,195 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-10 01:29:55,197 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-10 01:29:55,210 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2019-09-10 01:29:55,241 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-10 01:29:55,242 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-10 01:29:55,243 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-10 01:29:55,244 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-10 01:29:55,245 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-10 01:29:55,245 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-10 01:29:55,246 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-10 01:29:55,246 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-10 01:29:55,246 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-10 01:29:55,247 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-10 01:29:55,248 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-10 01:29:55,249 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf [2019-09-10 01:29:55,264 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-10 01:29:55,265 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-10 01:29:55,265 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-10 01:29:55,265 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-10 01:29:55,266 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-10 01:29:55,266 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-10 01:29:55,267 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-10 01:29:55,267 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-10 01:29:55,267 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-10 01:29:55,267 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-10 01:29:55,268 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-10 01:29:55,268 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-10 01:29:55,268 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-10 01:29:55,269 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-10 01:29:55,269 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-10 01:29:55,269 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-10 01:29:55,269 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-10 01:29:55,270 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-10 01:29:55,270 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-10 01:29:55,270 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-10 01:29:55,270 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-10 01:29:55,270 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-10 01:29:55,271 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-10 01:29:55,271 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-10 01:29:55,271 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-10 01:29:55,271 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-10 01:29:55,272 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-10 01:29:55,272 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-10 01:29:55,272 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-10 01:29:55,272 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-10 01:29:55,303 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-10 01:29:55,316 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-10 01:29:55,320 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-10 01:29:55,321 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-10 01:29:55,322 INFO L275 PluginConnector]: CDTParser initialized [2019-09-10 01:29:55,323 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/floats-cdfpl/square_8.i [2019-09-10 01:29:55,390 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/41050fcb2/b207bd97777843c38b3c24d3163ef8d3/FLAG30b004738 [2019-09-10 01:29:55,875 INFO L306 CDTParser]: Found 1 translation units. [2019-09-10 01:29:55,876 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/floats-cdfpl/square_8.i [2019-09-10 01:29:55,885 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/41050fcb2/b207bd97777843c38b3c24d3163ef8d3/FLAG30b004738 [2019-09-10 01:29:56,250 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/41050fcb2/b207bd97777843c38b3c24d3163ef8d3 [2019-09-10 01:29:56,263 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-10 01:29:56,264 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-10 01:29:56,266 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-10 01:29:56,266 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-10 01:29:56,270 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-10 01:29:56,271 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 01:29:56" (1/1) ... [2019-09-10 01:29:56,274 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@742af69d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:29:56, skipping insertion in model container [2019-09-10 01:29:56,275 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 01:29:56" (1/1) ... [2019-09-10 01:29:56,283 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-10 01:29:56,301 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-10 01:29:56,535 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 01:29:56,543 INFO L188 MainTranslator]: Completed pre-run [2019-09-10 01:29:56,567 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 01:29:56,581 INFO L192 MainTranslator]: Completed translation [2019-09-10 01:29:56,582 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:29:56 WrapperNode [2019-09-10 01:29:56,582 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-10 01:29:56,584 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-10 01:29:56,584 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-10 01:29:56,584 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-10 01:29:56,724 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:29:56" (1/1) ... [2019-09-10 01:29:56,726 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:29:56" (1/1) ... [2019-09-10 01:29:56,733 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:29:56" (1/1) ... [2019-09-10 01:29:56,733 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:29:56" (1/1) ... [2019-09-10 01:29:56,739 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:29:56" (1/1) ... [2019-09-10 01:29:56,741 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:29:56" (1/1) ... [2019-09-10 01:29:56,742 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:29:56" (1/1) ... [2019-09-10 01:29:56,749 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-10 01:29:56,750 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-10 01:29:56,750 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-10 01:29:56,750 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-10 01:29:56,751 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:29:56" (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 [2019-09-10 01:29:56,818 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-10 01:29:56,820 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-10 01:29:56,820 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-10 01:29:56,821 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-10 01:29:56,821 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-09-10 01:29:56,821 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2019-09-10 01:29:56,821 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-10 01:29:56,821 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-10 01:29:56,821 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-10 01:29:56,987 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-10 01:29:56,988 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-09-10 01:29:56,990 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 01:29:56 BoogieIcfgContainer [2019-09-10 01:29:56,990 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-10 01:29:56,993 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-10 01:29:56,994 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-10 01:29:56,999 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-10 01:29:56,999 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.09 01:29:56" (1/3) ... [2019-09-10 01:29:57,001 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46b9365d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 01:29:57, skipping insertion in model container [2019-09-10 01:29:57,002 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:29:56" (2/3) ... [2019-09-10 01:29:57,003 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46b9365d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 01:29:57, skipping insertion in model container [2019-09-10 01:29:57,003 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 01:29:56" (3/3) ... [2019-09-10 01:29:57,006 INFO L109 eAbstractionObserver]: Analyzing ICFG square_8.i [2019-09-10 01:29:57,019 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-10 01:29:57,043 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-10 01:29:57,064 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-10 01:29:57,102 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-10 01:29:57,102 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-10 01:29:57,102 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-10 01:29:57,103 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-10 01:29:57,104 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-10 01:29:57,104 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-10 01:29:57,104 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-10 01:29:57,104 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-10 01:29:57,126 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states. [2019-09-10 01:29:57,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-09-10 01:29:57,139 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 01:29:57,140 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-09-10 01:29:57,143 INFO L418 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 01:29:57,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 01:29:57,150 INFO L82 PathProgramCache]: Analyzing trace with hash -2109216782, now seen corresponding path program 1 times [2019-09-10 01:29:57,152 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 01:29:57,205 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 01:29:57,205 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 01:29:57,206 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 01:29:57,206 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 01:29:57,229 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2019-09-10 01:29:57,230 INFO L258 seRefinementStrategy]: Advancing trace checker [2019-09-10 01:29:57,230 INFO L170 anRefinementStrategy]: Switched to traceCheck mode Z3_NO_IG 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 [2019-09-10 01:29:57,245 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 01:29:57,246 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_NO_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: null) [2019-09-10 01:29:57,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 01:29:57,263 INFO L195 CegarAbsIntRunner]: Skipping current iteration for AI because the path program does not contain any loops [2019-09-10 01:29:57,265 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-09-10 01:29:57,266 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 01:29:57,266 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-10 01:29:57,283 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 01:29:57,283 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2019-09-10 01:29:57,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 01:29:57,300 INFO L256 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 6 conjunts are in the unsatisfiable core [2019-09-10 01:29:57,305 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-10 01:29:57,379 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 01:29:57,380 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-09-10 01:29:57,474 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 01:29:57,483 INFO L312 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-09-10 01:29:57,483 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2019-09-10 01:29:57,483 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 01:29:57,489 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 01:29:57,510 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 01:29:57,512 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-09-10 01:29:57,520 INFO L87 Difference]: Start difference. First operand 13 states. Second operand 3 states. [2019-09-10 01:29:57,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 01:29:57,557 INFO L93 Difference]: Finished difference Result 11 states and 10 transitions. [2019-09-10 01:29:57,560 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 01:29:57,561 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2019-09-10 01:29:57,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 01:29:57,580 INFO L225 Difference]: With dead ends: 11 [2019-09-10 01:29:57,581 INFO L226 Difference]: Without dead ends: 0 [2019-09-10 01:29:57,583 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-09-10 01:29:57,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-10 01:29:57,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-10 01:29:57,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-10 01:29:57,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-10 01:29:57,613 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 7 [2019-09-10 01:29:57,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 01:29:57,614 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-10 01:29:57,614 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 01:29:57,614 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-10 01:29:57,614 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-10 01:29:57,620 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.09 01:29:57 BoogieIcfgContainer [2019-09-10 01:29:57,621 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-10 01:29:57,625 INFO L168 Benchmark]: Toolchain (without parser) took 1358.93 ms. Allocated memory was 134.2 MB in the beginning and 201.3 MB in the end (delta: 67.1 MB). Free memory was 90.6 MB in the beginning and 139.5 MB in the end (delta: -48.9 MB). Peak memory consumption was 18.2 MB. Max. memory is 7.1 GB. [2019-09-10 01:29:57,626 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 134.2 MB. Free memory was 108.7 MB in the beginning and 108.5 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-10 01:29:57,627 INFO L168 Benchmark]: CACSL2BoogieTranslator took 317.23 ms. Allocated memory is still 134.2 MB. Free memory was 90.4 MB in the beginning and 81.4 MB in the end (delta: 9.0 MB). Peak memory consumption was 9.0 MB. Max. memory is 7.1 GB. [2019-09-10 01:29:57,628 INFO L168 Benchmark]: Boogie Preprocessor took 165.29 ms. Allocated memory was 134.2 MB in the beginning and 201.3 MB in the end (delta: 67.1 MB). Free memory was 81.1 MB in the beginning and 177.6 MB in the end (delta: -96.5 MB). Peak memory consumption was 15.9 MB. Max. memory is 7.1 GB. [2019-09-10 01:29:57,629 INFO L168 Benchmark]: RCFGBuilder took 241.73 ms. Allocated memory is still 201.3 MB. Free memory was 177.6 MB in the beginning and 167.7 MB in the end (delta: 9.9 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. [2019-09-10 01:29:57,630 INFO L168 Benchmark]: TraceAbstraction took 627.69 ms. Allocated memory is still 201.3 MB. Free memory was 167.7 MB in the beginning and 139.5 MB in the end (delta: 28.2 MB). Peak memory consumption was 28.2 MB. Max. memory is 7.1 GB. [2019-09-10 01:29:57,634 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 134.2 MB. Free memory was 108.7 MB in the beginning and 108.5 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 317.23 ms. Allocated memory is still 134.2 MB. Free memory was 90.4 MB in the beginning and 81.4 MB in the end (delta: 9.0 MB). Peak memory consumption was 9.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 165.29 ms. Allocated memory was 134.2 MB in the beginning and 201.3 MB in the end (delta: 67.1 MB). Free memory was 81.1 MB in the beginning and 177.6 MB in the end (delta: -96.5 MB). Peak memory consumption was 15.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 241.73 ms. Allocated memory is still 201.3 MB. Free memory was 177.6 MB in the beginning and 167.7 MB in the end (delta: 9.9 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 627.69 ms. Allocated memory is still 201.3 MB. Free memory was 167.7 MB in the beginning and 139.5 MB in the end (delta: 28.2 MB). Peak memory consumption was 28.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 15]: 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 - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 13 locations, 1 error locations. SAFE Result, 0.5s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 9 SDtfs, 3 SDslu, 6 SDs, 0 SdLazy, 1 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 13 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=13occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 14 NumberOfCodeBlocks, 14 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 12 ConstructedInterpolants, 1 QuantifiedInterpolants, 348 SizeOfPredicates, 3 NumberOfNonLiveVariables, 19 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...