/usr/bin/java -ea -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.use.separate.solver.for.trace.checks true -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/loops/while_infinite_loop_2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-46f3038-m [2020-07-08 23:37:30,944 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-08 23:37:30,947 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-08 23:37:30,961 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-08 23:37:30,961 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-08 23:37:30,963 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-08 23:37:30,964 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-08 23:37:30,966 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-08 23:37:30,968 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-08 23:37:30,969 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-08 23:37:30,971 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-08 23:37:30,972 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-08 23:37:30,972 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-08 23:37:30,973 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-08 23:37:30,974 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-08 23:37:30,976 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-08 23:37:30,977 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-08 23:37:30,978 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-08 23:37:30,981 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-08 23:37:30,983 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-08 23:37:30,985 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-08 23:37:30,987 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-08 23:37:30,989 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-08 23:37:30,990 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-08 23:37:30,992 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-08 23:37:31,002 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-08 23:37:31,003 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-08 23:37:31,004 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-08 23:37:31,005 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-07-08 23:37:31,015 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-08 23:37:31,016 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-08 23:37:31,017 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-08 23:37:31,018 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-08 23:37:31,018 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-08 23:37:31,018 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-08 23:37:31,018 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-08 23:37:31,019 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-08 23:37:31,019 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-08 23:37:31,019 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-08 23:37:31,019 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-08 23:37:31,019 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-08 23:37:31,020 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-08 23:37:31,020 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-08 23:37:31,020 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-08 23:37:31,020 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-07-08 23:37:31,020 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-08 23:37:31,021 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-08 23:37:31,021 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-08 23:37:31,021 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-08 23:37:31,021 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-07-08 23:37:31,022 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-08 23:37:31,022 INFO L138 SettingsManager]: * Use separate solver for trace checks=false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use separate solver for trace checks -> true [2020-07-08 23:37:31,394 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-08 23:37:31,420 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-08 23:37:31,424 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-08 23:37:31,426 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-08 23:37:31,426 INFO L275 PluginConnector]: CDTParser initialized [2020-07-08 23:37:31,427 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/while_infinite_loop_2.c [2020-07-08 23:37:31,505 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6463e3e22/69be203c6f1040f88dda7507de35e355/FLAGa4c461ab2 [2020-07-08 23:37:32,053 INFO L306 CDTParser]: Found 1 translation units. [2020-07-08 23:37:32,054 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/while_infinite_loop_2.c [2020-07-08 23:37:32,062 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6463e3e22/69be203c6f1040f88dda7507de35e355/FLAGa4c461ab2 [2020-07-08 23:37:32,418 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6463e3e22/69be203c6f1040f88dda7507de35e355 [2020-07-08 23:37:32,431 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-08 23:37:32,433 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-08 23:37:32,436 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-08 23:37:32,439 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-08 23:37:32,445 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-08 23:37:32,447 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.07 11:37:32" (1/1) ... [2020-07-08 23:37:32,453 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2278241c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 11:37:32, skipping insertion in model container [2020-07-08 23:37:32,453 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.07 11:37:32" (1/1) ... [2020-07-08 23:37:32,464 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-08 23:37:32,491 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-08 23:37:32,670 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-08 23:37:32,677 INFO L203 MainTranslator]: Completed pre-run [2020-07-08 23:37:32,695 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-08 23:37:32,714 INFO L208 MainTranslator]: Completed translation [2020-07-08 23:37:32,715 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 11:37:32 WrapperNode [2020-07-08 23:37:32,715 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-08 23:37:32,716 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-08 23:37:32,717 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-08 23:37:32,717 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-08 23:37:32,731 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 11:37:32" (1/1) ... [2020-07-08 23:37:32,731 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 11:37:32" (1/1) ... [2020-07-08 23:37:32,736 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 11:37:32" (1/1) ... [2020-07-08 23:37:32,736 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 11:37:32" (1/1) ... [2020-07-08 23:37:32,842 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 11:37:32" (1/1) ... [2020-07-08 23:37:32,851 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 11:37:32" (1/1) ... [2020-07-08 23:37:32,860 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 11:37:32" (1/1) ... [2020-07-08 23:37:32,865 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-08 23:37:32,866 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-08 23:37:32,866 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-08 23:37:32,866 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-08 23:37:32,868 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 11:37:32" (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 [2020-07-08 23:37:32,935 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-08 23:37:32,936 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-08 23:37:32,936 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-07-08 23:37:32,936 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-08 23:37:32,937 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-08 23:37:32,937 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-07-08 23:37:32,937 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-08 23:37:32,937 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-08 23:37:32,937 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-08 23:37:33,307 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-08 23:37:33,308 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-08 23:37:33,313 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.07 11:37:33 BoogieIcfgContainer [2020-07-08 23:37:33,313 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-08 23:37:33,314 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-08 23:37:33,315 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-08 23:37:33,319 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-08 23:37:33,320 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.07 11:37:32" (1/3) ... [2020-07-08 23:37:33,321 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ac5dde and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.07 11:37:33, skipping insertion in model container [2020-07-08 23:37:33,321 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 11:37:32" (2/3) ... [2020-07-08 23:37:33,322 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ac5dde and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.07 11:37:33, skipping insertion in model container [2020-07-08 23:37:33,322 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.07 11:37:33" (3/3) ... [2020-07-08 23:37:33,325 INFO L109 eAbstractionObserver]: Analyzing ICFG while_infinite_loop_2.c [2020-07-08 23:37:33,338 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-07-08 23:37:33,349 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-08 23:37:33,365 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-08 23:37:33,388 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-08 23:37:33,389 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-08 23:37:33,389 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-07-08 23:37:33,389 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-08 23:37:33,390 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-08 23:37:33,390 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-08 23:37:33,390 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-08 23:37:33,390 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-08 23:37:33,406 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states. [2020-07-08 23:37:33,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-07-08 23:37:33,417 INFO L414 BasicCegarLoop]: Found error trace [2020-07-08 23:37:33,418 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-08 23:37:33,418 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-08 23:37:33,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-08 23:37:33,428 INFO L82 PathProgramCache]: Analyzing trace with hash -10313984, now seen corresponding path program 1 times [2020-07-08 23:37:33,440 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-08 23:37:33,440 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1022242271] [2020-07-08 23:37:33,441 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-08 23:37:33,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:37:33,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:37:33,590 INFO L280 TraceCheckUtils]: 0: Hoare triple {21#true} assume true; {21#true} is VALID [2020-07-08 23:37:33,591 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {21#true} {21#true} #32#return; {21#true} is VALID [2020-07-08 23:37:33,593 INFO L263 TraceCheckUtils]: 0: Hoare triple {21#true} call ULTIMATE.init(); {21#true} is VALID [2020-07-08 23:37:33,594 INFO L280 TraceCheckUtils]: 1: Hoare triple {21#true} assume true; {21#true} is VALID [2020-07-08 23:37:33,595 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {21#true} {21#true} #32#return; {21#true} is VALID [2020-07-08 23:37:33,595 INFO L263 TraceCheckUtils]: 3: Hoare triple {21#true} call #t~ret0 := main(); {21#true} is VALID [2020-07-08 23:37:33,595 INFO L280 TraceCheckUtils]: 4: Hoare triple {21#true} ~x~0 := 0; {21#true} is VALID [2020-07-08 23:37:33,597 INFO L280 TraceCheckUtils]: 5: Hoare triple {21#true} assume !true; {22#false} is VALID [2020-07-08 23:37:33,598 INFO L263 TraceCheckUtils]: 6: Hoare triple {22#false} call __VERIFIER_assert((if 0 == ~x~0 then 1 else 0)); {22#false} is VALID [2020-07-08 23:37:33,598 INFO L280 TraceCheckUtils]: 7: Hoare triple {22#false} ~cond := #in~cond; {22#false} is VALID [2020-07-08 23:37:33,598 INFO L280 TraceCheckUtils]: 8: Hoare triple {22#false} assume 0 == ~cond; {22#false} is VALID [2020-07-08 23:37:33,599 INFO L280 TraceCheckUtils]: 9: Hoare triple {22#false} assume !false; {22#false} is VALID [2020-07-08 23:37:33,600 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-08 23:37:33,601 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1022242271] [2020-07-08 23:37:33,603 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-08 23:37:33,603 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-08 23:37:33,605 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [656937562] [2020-07-08 23:37:33,612 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-07-08 23:37:33,617 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-08 23:37:33,622 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states. [2020-07-08 23:37:33,666 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 10 edges. 10 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 23:37:33,666 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-07-08 23:37:33,667 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-08 23:37:33,676 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-07-08 23:37:33,677 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-08 23:37:33,679 INFO L87 Difference]: Start difference. First operand 18 states. Second operand 2 states. [2020-07-08 23:37:33,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 23:37:33,778 INFO L93 Difference]: Finished difference Result 26 states and 33 transitions. [2020-07-08 23:37:33,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-07-08 23:37:33,778 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-07-08 23:37:33,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-08 23:37:33,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-07-08 23:37:33,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 33 transitions. [2020-07-08 23:37:33,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-07-08 23:37:33,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 33 transitions. [2020-07-08 23:37:33,795 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states and 33 transitions. [2020-07-08 23:37:33,869 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 33 edges. 33 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 23:37:33,883 INFO L225 Difference]: With dead ends: 26 [2020-07-08 23:37:33,883 INFO L226 Difference]: Without dead ends: 13 [2020-07-08 23:37:33,888 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-08 23:37:33,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2020-07-08 23:37:33,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2020-07-08 23:37:33,961 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-08 23:37:33,962 INFO L82 GeneralOperation]: Start isEquivalent. First operand 13 states. Second operand 13 states. [2020-07-08 23:37:33,962 INFO L74 IsIncluded]: Start isIncluded. First operand 13 states. Second operand 13 states. [2020-07-08 23:37:33,963 INFO L87 Difference]: Start difference. First operand 13 states. Second operand 13 states. [2020-07-08 23:37:33,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 23:37:33,967 INFO L93 Difference]: Finished difference Result 13 states and 13 transitions. [2020-07-08 23:37:33,967 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2020-07-08 23:37:33,968 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 23:37:33,969 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 23:37:33,969 INFO L74 IsIncluded]: Start isIncluded. First operand 13 states. Second operand 13 states. [2020-07-08 23:37:33,969 INFO L87 Difference]: Start difference. First operand 13 states. Second operand 13 states. [2020-07-08 23:37:33,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 23:37:33,974 INFO L93 Difference]: Finished difference Result 13 states and 13 transitions. [2020-07-08 23:37:33,975 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2020-07-08 23:37:33,975 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 23:37:33,976 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 23:37:33,976 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-08 23:37:33,976 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-08 23:37:33,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2020-07-08 23:37:33,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2020-07-08 23:37:33,981 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 10 [2020-07-08 23:37:33,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-08 23:37:33,982 INFO L479 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions. [2020-07-08 23:37:33,982 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-07-08 23:37:33,982 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 13 states and 13 transitions. [2020-07-08 23:37:34,102 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 13 edges. 13 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 23:37:34,103 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2020-07-08 23:37:34,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-07-08 23:37:34,104 INFO L414 BasicCegarLoop]: Found error trace [2020-07-08 23:37:34,104 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-08 23:37:34,105 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-08 23:37:34,106 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-08 23:37:34,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-08 23:37:34,112 INFO L82 PathProgramCache]: Analyzing trace with hash -13144129, now seen corresponding path program 1 times [2020-07-08 23:37:34,112 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-08 23:37:34,113 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1704109894] [2020-07-08 23:37:34,116 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-08 23:37:34,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:37:34,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:37:34,275 INFO L280 TraceCheckUtils]: 0: Hoare triple {131#true} assume true; {131#true} is VALID [2020-07-08 23:37:34,276 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {131#true} {131#true} #32#return; {131#true} is VALID [2020-07-08 23:37:34,276 INFO L263 TraceCheckUtils]: 0: Hoare triple {131#true} call ULTIMATE.init(); {131#true} is VALID [2020-07-08 23:37:34,277 INFO L280 TraceCheckUtils]: 1: Hoare triple {131#true} assume true; {131#true} is VALID [2020-07-08 23:37:34,277 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {131#true} {131#true} #32#return; {131#true} is VALID [2020-07-08 23:37:34,278 INFO L263 TraceCheckUtils]: 3: Hoare triple {131#true} call #t~ret0 := main(); {131#true} is VALID [2020-07-08 23:37:34,279 INFO L280 TraceCheckUtils]: 4: Hoare triple {131#true} ~x~0 := 0; {135#(= 0 main_~x~0)} is VALID [2020-07-08 23:37:34,281 INFO L280 TraceCheckUtils]: 5: Hoare triple {135#(= 0 main_~x~0)} assume !false; {135#(= 0 main_~x~0)} is VALID [2020-07-08 23:37:34,283 INFO L263 TraceCheckUtils]: 6: Hoare triple {135#(= 0 main_~x~0)} call __VERIFIER_assert((if 0 == ~x~0 then 1 else 0)); {136#(not (= 0 |__VERIFIER_assert_#in~cond|))} is VALID [2020-07-08 23:37:34,285 INFO L280 TraceCheckUtils]: 7: Hoare triple {136#(not (= 0 |__VERIFIER_assert_#in~cond|))} ~cond := #in~cond; {137#(not (= 0 __VERIFIER_assert_~cond))} is VALID [2020-07-08 23:37:34,286 INFO L280 TraceCheckUtils]: 8: Hoare triple {137#(not (= 0 __VERIFIER_assert_~cond))} assume 0 == ~cond; {132#false} is VALID [2020-07-08 23:37:34,287 INFO L280 TraceCheckUtils]: 9: Hoare triple {132#false} assume !false; {132#false} is VALID [2020-07-08 23:37:34,288 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-08 23:37:34,288 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1704109894] [2020-07-08 23:37:34,289 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-08 23:37:34,289 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-08 23:37:34,290 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [114449048] [2020-07-08 23:37:34,292 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2020-07-08 23:37:34,292 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-08 23:37:34,292 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states. [2020-07-08 23:37:34,310 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 10 edges. 10 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 23:37:34,311 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-08 23:37:34,311 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-08 23:37:34,312 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-08 23:37:34,312 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-08 23:37:34,312 INFO L87 Difference]: Start difference. First operand 13 states and 13 transitions. Second operand 5 states. [2020-07-08 23:37:34,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 23:37:34,422 INFO L93 Difference]: Finished difference Result 13 states and 13 transitions. [2020-07-08 23:37:34,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-08 23:37:34,423 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2020-07-08 23:37:34,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-08 23:37:34,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-08 23:37:34,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 13 transitions. [2020-07-08 23:37:34,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-08 23:37:34,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 13 transitions. [2020-07-08 23:37:34,428 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states and 13 transitions. [2020-07-08 23:37:34,455 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 13 edges. 13 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 23:37:34,456 INFO L225 Difference]: With dead ends: 13 [2020-07-08 23:37:34,456 INFO L226 Difference]: Without dead ends: 0 [2020-07-08 23:37:34,458 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-07-08 23:37:34,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-08 23:37:34,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-08 23:37:34,459 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-08 23:37:34,459 INFO L82 GeneralOperation]: Start isEquivalent. First operand 0 states. Second operand 0 states. [2020-07-08 23:37:34,460 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second operand 0 states. [2020-07-08 23:37:34,460 INFO L87 Difference]: Start difference. First operand 0 states. Second operand 0 states. [2020-07-08 23:37:34,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 23:37:34,461 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2020-07-08 23:37:34,461 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-08 23:37:34,461 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 23:37:34,461 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 23:37:34,461 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second operand 0 states. [2020-07-08 23:37:34,462 INFO L87 Difference]: Start difference. First operand 0 states. Second operand 0 states. [2020-07-08 23:37:34,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 23:37:34,462 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2020-07-08 23:37:34,463 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-08 23:37:34,463 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 23:37:34,464 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 23:37:34,464 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-08 23:37:34,464 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-08 23:37:34,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-08 23:37:34,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-08 23:37:34,465 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 10 [2020-07-08 23:37:34,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-08 23:37:34,466 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-08 23:37:34,466 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-08 23:37:34,466 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 0 states and 0 transitions. [2020-07-08 23:37:34,466 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 0 edges. 0 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 23:37:34,467 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-08 23:37:34,467 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 23:37:34,467 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-08 23:37:34,470 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-08 23:37:34,662 INFO L271 CegarLoopResult]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2020-07-08 23:37:34,662 INFO L271 CegarLoopResult]: At program point ULTIMATE.initEXIT(line -1) the Hoare annotation is: true [2020-07-08 23:37:34,662 INFO L264 CegarLoopResult]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: false [2020-07-08 23:37:34,663 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-07-08 23:37:34,663 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-08 23:37:34,663 INFO L264 CegarLoopResult]: At program point ULTIMATE.startFINAL(line -1) the Hoare annotation is: false [2020-07-08 23:37:34,663 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 9 18) the Hoare annotation is: true [2020-07-08 23:37:34,664 INFO L264 CegarLoopResult]: At program point mainEXIT(lines 9 18) the Hoare annotation is: false [2020-07-08 23:37:34,664 INFO L264 CegarLoopResult]: At program point L14(line 14) the Hoare annotation is: (= 0 main_~x~0) [2020-07-08 23:37:34,664 INFO L264 CegarLoopResult]: At program point L14-1(lines 12 15) the Hoare annotation is: (= 0 main_~x~0) [2020-07-08 23:37:34,664 INFO L264 CegarLoopResult]: At program point mainFINAL(lines 9 18) the Hoare annotation is: false [2020-07-08 23:37:34,665 INFO L264 CegarLoopResult]: At program point L12-2(lines 12 15) the Hoare annotation is: false [2020-07-08 23:37:34,665 INFO L271 CegarLoopResult]: At program point __VERIFIER_assertENTRY(lines 3 8) the Hoare annotation is: true [2020-07-08 23:37:34,665 INFO L264 CegarLoopResult]: At program point __VERIFIER_assertEXIT(lines 3 8) the Hoare annotation is: (or (= 0 |__VERIFIER_assert_#in~cond|) (not (= 0 __VERIFIER_assert_~cond))) [2020-07-08 23:37:34,665 INFO L264 CegarLoopResult]: At program point L5(line 5) the Hoare annotation is: (= 0 |__VERIFIER_assert_#in~cond|) [2020-07-08 23:37:34,666 INFO L264 CegarLoopResult]: At program point L4(lines 4 6) the Hoare annotation is: (or (= 0 |__VERIFIER_assert_#in~cond|) (not (= 0 __VERIFIER_assert_~cond))) [2020-07-08 23:37:34,666 INFO L264 CegarLoopResult]: At program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) the Hoare annotation is: (= 0 |__VERIFIER_assert_#in~cond|) [2020-07-08 23:37:34,667 INFO L264 CegarLoopResult]: At program point L4-2(lines 3 8) the Hoare annotation is: (or (= 0 |__VERIFIER_assert_#in~cond|) (not (= 0 __VERIFIER_assert_~cond))) [2020-07-08 23:37:34,682 INFO L163 areAnnotationChecker]: CFG has 21 edges. 21 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. 0 times interpolants missing. [2020-07-08 23:37:34,714 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.07 11:37:34 BoogieIcfgContainer [2020-07-08 23:37:34,715 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-08 23:37:34,719 INFO L168 Benchmark]: Toolchain (without parser) took 2284.77 ms. Allocated memory was 134.7 MB in the beginning and 224.9 MB in the end (delta: 90.2 MB). Free memory was 100.0 MB in the beginning and 196.1 MB in the end (delta: -96.1 MB). Peak memory consumption was 92.8 MB. Max. memory is 7.1 GB. [2020-07-08 23:37:34,720 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 134.7 MB. Free memory was 118.2 MB in the beginning and 118.0 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2020-07-08 23:37:34,721 INFO L168 Benchmark]: CACSL2BoogieTranslator took 279.75 ms. Allocated memory is still 134.7 MB. Free memory was 99.8 MB in the beginning and 90.0 MB in the end (delta: 9.8 MB). Peak memory consumption was 9.8 MB. Max. memory is 7.1 GB. [2020-07-08 23:37:34,723 INFO L168 Benchmark]: Boogie Preprocessor took 148.66 ms. Allocated memory was 134.7 MB in the beginning and 199.2 MB in the end (delta: 64.5 MB). Free memory was 90.0 MB in the beginning and 177.5 MB in the end (delta: -87.5 MB). Peak memory consumption was 14.9 MB. Max. memory is 7.1 GB. [2020-07-08 23:37:34,724 INFO L168 Benchmark]: RCFGBuilder took 447.68 ms. Allocated memory is still 199.2 MB. Free memory was 177.5 MB in the beginning and 165.3 MB in the end (delta: 12.2 MB). Peak memory consumption was 12.2 MB. Max. memory is 7.1 GB. [2020-07-08 23:37:34,725 INFO L168 Benchmark]: TraceAbstraction took 1400.20 ms. Allocated memory was 199.2 MB in the beginning and 224.9 MB in the end (delta: 25.7 MB). Free memory was 164.6 MB in the beginning and 196.1 MB in the end (delta: -31.5 MB). Peak memory consumption was 92.9 MB. Max. memory is 7.1 GB. [2020-07-08 23:37:34,730 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 134.7 MB. Free memory was 118.2 MB in the beginning and 118.0 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 279.75 ms. Allocated memory is still 134.7 MB. Free memory was 99.8 MB in the beginning and 90.0 MB in the end (delta: 9.8 MB). Peak memory consumption was 9.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 148.66 ms. Allocated memory was 134.7 MB in the beginning and 199.2 MB in the end (delta: 64.5 MB). Free memory was 90.0 MB in the beginning and 177.5 MB in the end (delta: -87.5 MB). Peak memory consumption was 14.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 447.68 ms. Allocated memory is still 199.2 MB. Free memory was 177.5 MB in the beginning and 165.3 MB in the end (delta: 12.2 MB). Peak memory consumption was 12.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1400.20 ms. Allocated memory was 199.2 MB in the beginning and 224.9 MB in the end (delta: 25.7 MB). Free memory was 164.6 MB in the beginning and 196.1 MB in the end (delta: -31.5 MB). Peak memory consumption was 92.9 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: 12]: Loop Invariant Derived loop invariant: 0 == x - ProcedureContractResult [Line: 9]: Procedure Contract for main Derived contract for procedure main: 0 - ProcedureContractResult [Line: 3]: Procedure Contract for __VERIFIER_assert Derived contract for procedure __VERIFIER_assert: 0 == \old(cond) || !(0 == cond) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 18 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.0s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 21 SDtfs, 5 SDslu, 19 SDs, 0 SdLazy, 7 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=18occurred 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 18 LocationsWithAnnotation, 30 PreInvPairs, 34 NumberOfFragments, 47 HoareAnnotationTreeSize, 30 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 18 FomulaSimplificationsInter, 15 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 20 NumberOfCodeBlocks, 20 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 18 ConstructedInterpolants, 0 QuantifiedInterpolants, 252 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...