/usr/bin/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 --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/for_infinite_loop_1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-3af5e1f [2020-09-04 23:10:18,783 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-04 23:10:18,788 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-04 23:10:18,835 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-04 23:10:18,835 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-04 23:10:18,847 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-04 23:10:18,850 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-04 23:10:18,853 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-04 23:10:18,856 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-04 23:10:18,859 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-04 23:10:18,863 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-04 23:10:18,864 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-04 23:10:18,864 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-04 23:10:18,866 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-04 23:10:18,867 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-04 23:10:18,868 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-04 23:10:18,869 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-04 23:10:18,870 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-04 23:10:18,872 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-04 23:10:18,874 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-04 23:10:18,876 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-04 23:10:18,877 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-04 23:10:18,878 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-04 23:10:18,879 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-04 23:10:18,882 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-09-04 23:10:18,895 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-04 23:10:18,896 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-04 23:10:18,897 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-04 23:10:18,898 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-09-04 23:10:18,911 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-04 23:10:18,911 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-04 23:10:18,913 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-04 23:10:18,913 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-04 23:10:18,914 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-04 23:10:18,914 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-04 23:10:18,914 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-04 23:10:18,914 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-04 23:10:18,914 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-04 23:10:18,915 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-04 23:10:18,915 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-04 23:10:18,915 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-04 23:10:18,915 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-04 23:10:18,915 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-04 23:10:18,916 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-04 23:10:18,916 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-09-04 23:10:18,916 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-04 23:10:18,916 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-04 23:10:18,917 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-04 23:10:18,917 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-04 23:10:18,917 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-09-04 23:10:18,917 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-04 23:10:18,917 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 [2020-09-04 23:10:19,364 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-04 23:10:19,382 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-04 23:10:19,386 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-04 23:10:19,388 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-04 23:10:19,389 INFO L275 PluginConnector]: CDTParser initialized [2020-09-04 23:10:19,390 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/for_infinite_loop_1.c [2020-09-04 23:10:19,476 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ae52e8a6e/000be05d1c5840c5ae1d369a89d9b82c/FLAG1274d030f [2020-09-04 23:10:20,038 INFO L306 CDTParser]: Found 1 translation units. [2020-09-04 23:10:20,038 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/loops/for_infinite_loop_1.c [2020-09-04 23:10:20,047 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ae52e8a6e/000be05d1c5840c5ae1d369a89d9b82c/FLAG1274d030f [2020-09-04 23:10:20,395 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ae52e8a6e/000be05d1c5840c5ae1d369a89d9b82c [2020-09-04 23:10:20,424 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-04 23:10:20,427 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-04 23:10:20,428 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-04 23:10:20,428 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-04 23:10:20,432 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-04 23:10:20,433 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.09 11:10:20" (1/1) ... [2020-09-04 23:10:20,437 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@703d1064 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 11:10:20, skipping insertion in model container [2020-09-04 23:10:20,438 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.09 11:10:20" (1/1) ... [2020-09-04 23:10:20,446 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-04 23:10:20,469 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-04 23:10:20,673 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-04 23:10:20,679 INFO L203 MainTranslator]: Completed pre-run [2020-09-04 23:10:20,701 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-04 23:10:20,721 INFO L208 MainTranslator]: Completed translation [2020-09-04 23:10:20,722 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 11:10:20 WrapperNode [2020-09-04 23:10:20,722 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-04 23:10:20,723 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-04 23:10:20,723 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-04 23:10:20,724 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-04 23:10:20,742 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 11:10:20" (1/1) ... [2020-09-04 23:10:20,743 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 11:10:20" (1/1) ... [2020-09-04 23:10:20,828 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 11:10:20" (1/1) ... [2020-09-04 23:10:20,829 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 11:10:20" (1/1) ... [2020-09-04 23:10:20,834 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 11:10:20" (1/1) ... [2020-09-04 23:10:20,840 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 11:10:20" (1/1) ... [2020-09-04 23:10:20,841 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 11:10:20" (1/1) ... [2020-09-04 23:10:20,843 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-04 23:10:20,843 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-04 23:10:20,843 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-04 23:10:20,844 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-04 23:10:20,845 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 11:10:20" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/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 [2020-09-04 23:10:20,926 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-04 23:10:20,926 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-04 23:10:20,926 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-09-04 23:10:20,926 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-09-04 23:10:20,926 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-04 23:10:20,926 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-04 23:10:20,932 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-04 23:10:20,932 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-09-04 23:10:20,932 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-09-04 23:10:20,932 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-04 23:10:20,935 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-04 23:10:20,935 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-04 23:10:20,935 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-04 23:10:21,165 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-04 23:10:21,166 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-09-04 23:10:21,173 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.09 11:10:21 BoogieIcfgContainer [2020-09-04 23:10:21,173 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-04 23:10:21,175 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-04 23:10:21,175 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-04 23:10:21,179 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-04 23:10:21,179 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.09 11:10:20" (1/3) ... [2020-09-04 23:10:21,180 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6bd8b02 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.09 11:10:21, skipping insertion in model container [2020-09-04 23:10:21,181 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 11:10:20" (2/3) ... [2020-09-04 23:10:21,181 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6bd8b02 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.09 11:10:21, skipping insertion in model container [2020-09-04 23:10:21,181 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.09 11:10:21" (3/3) ... [2020-09-04 23:10:21,184 INFO L109 eAbstractionObserver]: Analyzing ICFG for_infinite_loop_1.c [2020-09-04 23:10:21,207 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-04 23:10:21,230 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-04 23:10:21,255 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-04 23:10:21,289 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-04 23:10:21,289 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-04 23:10:21,290 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-04 23:10:21,291 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-04 23:10:21,291 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-04 23:10:21,291 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-04 23:10:21,291 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-04 23:10:21,291 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-04 23:10:21,309 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states. [2020-09-04 23:10:21,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-09-04 23:10:21,322 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 23:10:21,324 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 23:10:21,324 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 23:10:21,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 23:10:21,332 INFO L82 PathProgramCache]: Analyzing trace with hash 390901091, now seen corresponding path program 1 times [2020-09-04 23:10:21,342 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 23:10:21,342 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [679255789] [2020-09-04 23:10:21,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 23:10:21,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 23:10:21,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 23:10:21,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 23:10:21,596 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 23:10:21,597 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [679255789] [2020-09-04 23:10:21,599 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 23:10:21,599 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-04 23:10:21,601 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [396960896] [2020-09-04 23:10:21,607 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-04 23:10:21,607 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 23:10:21,625 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-04 23:10:21,626 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-04 23:10:21,629 INFO L87 Difference]: Start difference. First operand 29 states. Second operand 5 states. [2020-09-04 23:10:21,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 23:10:21,713 INFO L93 Difference]: Finished difference Result 42 states and 49 transitions. [2020-09-04 23:10:21,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-04 23:10:21,716 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2020-09-04 23:10:21,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 23:10:21,725 INFO L225 Difference]: With dead ends: 42 [2020-09-04 23:10:21,725 INFO L226 Difference]: Without dead ends: 0 [2020-09-04 23:10:21,730 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 [2020-09-04 23:10:21,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-04 23:10:21,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-04 23:10:21,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-04 23:10:21,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-04 23:10:21,760 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2020-09-04 23:10:21,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 23:10:21,760 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-04 23:10:21,760 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-04 23:10:21,761 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-04 23:10:21,761 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-04 23:10:21,761 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-04 23:10:21,764 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-04 23:10:21,957 INFO L271 CegarLoopResult]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2020-09-04 23:10:21,957 INFO L271 CegarLoopResult]: At program point ULTIMATE.initEXIT(line -1) the Hoare annotation is: true [2020-09-04 23:10:21,957 INFO L271 CegarLoopResult]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2020-09-04 23:10:21,958 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-09-04 23:10:21,958 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-09-04 23:10:21,958 INFO L271 CegarLoopResult]: At program point ULTIMATE.startFINAL(line -1) the Hoare annotation is: true [2020-09-04 23:10:21,958 INFO L268 CegarLoopResult]: For program point assume_abort_if_notENTRY(lines 4 6) no Hoare annotation was computed. [2020-09-04 23:10:21,958 INFO L268 CegarLoopResult]: For program point L5(line 5) no Hoare annotation was computed. [2020-09-04 23:10:21,958 INFO L268 CegarLoopResult]: For program point L5-1(line 5) no Hoare annotation was computed. [2020-09-04 23:10:21,959 INFO L268 CegarLoopResult]: For program point L5-3(lines 4 6) no Hoare annotation was computed. [2020-09-04 23:10:21,959 INFO L268 CegarLoopResult]: For program point assume_abort_if_notEXIT(lines 4 6) no Hoare annotation was computed. [2020-09-04 23:10:21,959 INFO L264 CegarLoopResult]: At program point mainEXIT(lines 16 26) the Hoare annotation is: (= main_~x~0 0) [2020-09-04 23:10:21,959 INFO L264 CegarLoopResult]: At program point L23(line 23) the Hoare annotation is: (= main_~x~0 0) [2020-09-04 23:10:21,959 INFO L264 CegarLoopResult]: At program point L23-1(lines 21 24) the Hoare annotation is: (= main_~x~0 0) [2020-09-04 23:10:21,961 INFO L264 CegarLoopResult]: At program point L21(line 21) the Hoare annotation is: (= main_~x~0 0) [2020-09-04 23:10:21,961 INFO L264 CegarLoopResult]: At program point L19(line 19) the Hoare annotation is: (= main_~x~0 0) [2020-09-04 23:10:21,962 INFO L264 CegarLoopResult]: At program point L19-1(line 19) the Hoare annotation is: (= main_~x~0 0) [2020-09-04 23:10:21,962 INFO L264 CegarLoopResult]: At program point L21-3(line 21) the Hoare annotation is: (= main_~x~0 0) [2020-09-04 23:10:21,963 INFO L264 CegarLoopResult]: At program point L19-2(line 19) the Hoare annotation is: (= main_~x~0 0) [2020-09-04 23:10:21,963 INFO L264 CegarLoopResult]: At program point L21-4(line 21) the Hoare annotation is: (= main_~x~0 0) [2020-09-04 23:10:21,963 INFO L264 CegarLoopResult]: At program point L21-5(lines 21 24) the Hoare annotation is: (= main_~x~0 0) [2020-09-04 23:10:21,963 INFO L264 CegarLoopResult]: At program point L21-6(lines 21 24) the Hoare annotation is: false [2020-09-04 23:10:21,963 INFO L264 CegarLoopResult]: At program point mainFINAL(lines 16 26) the Hoare annotation is: (= main_~x~0 0) [2020-09-04 23:10:21,964 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 16 26) the Hoare annotation is: true [2020-09-04 23:10:21,964 INFO L264 CegarLoopResult]: At program point L20(line 20) the Hoare annotation is: (= main_~x~0 0) [2020-09-04 23:10:21,964 INFO L264 CegarLoopResult]: At program point L20-1(line 20) the Hoare annotation is: (= main_~x~0 0) [2020-09-04 23:10:21,964 INFO L271 CegarLoopResult]: At program point L18(line 18) the Hoare annotation is: true [2020-09-04 23:10:21,965 INFO L264 CegarLoopResult]: At program point L18-1(line 18) the Hoare annotation is: (= main_~x~0 0) [2020-09-04 23:10:21,965 INFO L271 CegarLoopResult]: At program point __VERIFIER_assertENTRY(lines 7 12) the Hoare annotation is: true [2020-09-04 23:10:21,966 INFO L264 CegarLoopResult]: At program point __VERIFIER_assertEXIT(lines 7 12) the Hoare annotation is: (or (= |__VERIFIER_assert_#in~cond| 0) (not (= __VERIFIER_assert_~cond 0))) [2020-09-04 23:10:21,966 INFO L264 CegarLoopResult]: At program point L9(line 9) the Hoare annotation is: (= |__VERIFIER_assert_#in~cond| 0) [2020-09-04 23:10:21,966 INFO L264 CegarLoopResult]: At program point L8(lines 8 10) the Hoare annotation is: (or (= |__VERIFIER_assert_#in~cond| 0) (not (= __VERIFIER_assert_~cond 0))) [2020-09-04 23:10:21,967 INFO L264 CegarLoopResult]: At program point L8-2(lines 7 12) the Hoare annotation is: (or (= |__VERIFIER_assert_#in~cond| 0) (not (= __VERIFIER_assert_~cond 0))) [2020-09-04 23:10:21,967 INFO L264 CegarLoopResult]: At program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 9) the Hoare annotation is: (= |__VERIFIER_assert_#in~cond| 0) [2020-09-04 23:10:21,992 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.09 11:10:21 BoogieIcfgContainer [2020-09-04 23:10:21,992 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-04 23:10:21,996 INFO L168 Benchmark]: Toolchain (without parser) took 1568.81 ms. Allocated memory was 141.0 MB in the beginning and 204.5 MB in the end (delta: 63.4 MB). Free memory was 106.0 MB in the beginning and 129.8 MB in the end (delta: -23.8 MB). Peak memory consumption was 39.6 MB. Max. memory is 7.1 GB. [2020-09-04 23:10:21,998 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 141.0 MB. Free memory was 123.6 MB in the beginning and 123.4 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-09-04 23:10:21,999 INFO L168 Benchmark]: CACSL2BoogieTranslator took 295.00 ms. Allocated memory is still 141.0 MB. Free memory was 105.8 MB in the beginning and 96.3 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.5 MB. Max. memory is 7.1 GB. [2020-09-04 23:10:22,000 INFO L168 Benchmark]: Boogie Preprocessor took 119.66 ms. Allocated memory was 141.0 MB in the beginning and 204.5 MB in the end (delta: 63.4 MB). Free memory was 96.0 MB in the beginning and 183.7 MB in the end (delta: -87.7 MB). Peak memory consumption was 13.8 MB. Max. memory is 7.1 GB. [2020-09-04 23:10:22,001 INFO L168 Benchmark]: RCFGBuilder took 330.37 ms. Allocated memory is still 204.5 MB. Free memory was 183.1 MB in the beginning and 170.1 MB in the end (delta: 13.0 MB). Peak memory consumption was 13.0 MB. Max. memory is 7.1 GB. [2020-09-04 23:10:22,002 INFO L168 Benchmark]: TraceAbstraction took 817.22 ms. Allocated memory is still 204.5 MB. Free memory was 170.1 MB in the beginning and 129.8 MB in the end (delta: 40.2 MB). Peak memory consumption was 40.2 MB. Max. memory is 7.1 GB. [2020-09-04 23:10:22,007 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 141.0 MB. Free memory was 123.6 MB in the beginning and 123.4 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 295.00 ms. Allocated memory is still 141.0 MB. Free memory was 105.8 MB in the beginning and 96.3 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 119.66 ms. Allocated memory was 141.0 MB in the beginning and 204.5 MB in the end (delta: 63.4 MB). Free memory was 96.0 MB in the beginning and 183.7 MB in the end (delta: -87.7 MB). Peak memory consumption was 13.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 330.37 ms. Allocated memory is still 204.5 MB. Free memory was 183.1 MB in the beginning and 170.1 MB in the end (delta: 13.0 MB). Peak memory consumption was 13.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 817.22 ms. Allocated memory is still 204.5 MB. Free memory was 170.1 MB in the beginning and 129.8 MB in the end (delta: 40.2 MB). Peak memory consumption was 40.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 9]: 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: 21]: Loop Invariant Derived loop invariant: x == 0 - ProcedureContractResult [Line: 16]: Procedure Contract for main Derived contract for procedure main: x == 0 - ProcedureContractResult [Line: 7]: Procedure Contract for __VERIFIER_assert Derived contract for procedure __VERIFIER_assert: \old(cond) == 0 || !(cond == 0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 34 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 0.4s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 23 SDtfs, 11 SDslu, 52 SDs, 0 SdLazy, 7 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=29occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 29 LocationsWithAnnotation, 41 PreInvPairs, 52 NumberOfFragments, 82 HoareAnnotationTreeSize, 41 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 29 FomulaSimplificationsInter, 15 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 17 NumberOfCodeBlocks, 17 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 16 ConstructedInterpolants, 0 QuantifiedInterpolants, 608 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...