/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.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options enumeration-timeout=5 --traceabstraction.additional.smt.options interpolation-heuristic=WIDEST -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/loops-crafted-1/sumt8.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-5644d1e-m [2020-08-18 22:52:16,547 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-18 22:52:16,550 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-18 22:52:16,592 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-18 22:52:16,593 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-18 22:52:16,605 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-18 22:52:16,606 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-18 22:52:16,609 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-18 22:52:16,611 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-18 22:52:16,614 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-18 22:52:16,614 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-18 22:52:16,618 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-18 22:52:16,618 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-18 22:52:16,621 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-18 22:52:16,623 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-18 22:52:16,624 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-18 22:52:16,626 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-18 22:52:16,627 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-18 22:52:16,629 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-18 22:52:16,635 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-18 22:52:16,639 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-18 22:52:16,639 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-18 22:52:16,641 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-18 22:52:16,642 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-18 22:52:16,646 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-08-18 22:52:16,657 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-18 22:52:16,657 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-18 22:52:16,659 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-18 22:52:16,660 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-08-18 22:52:16,705 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-18 22:52:16,705 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-18 22:52:16,707 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-18 22:52:16,707 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-18 22:52:16,707 INFO L138 SettingsManager]: * Use SBE=true [2020-08-18 22:52:16,708 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-18 22:52:16,708 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-18 22:52:16,708 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-18 22:52:16,709 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-18 22:52:16,709 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-18 22:52:16,710 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-18 22:52:16,710 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-18 22:52:16,710 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-18 22:52:16,711 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-18 22:52:16,711 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-18 22:52:16,711 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-18 22:52:16,711 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-18 22:52:16,712 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-18 22:52:16,712 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-18 22:52:16,712 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-18 22:52:16,712 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-18 22:52:16,712 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-18 22:52:16,713 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-18 22:52:16,713 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-18 22:52:16,713 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-18 22:52:16,713 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-18 22:52:16,714 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-18 22:52:16,714 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-18 22:52:16,714 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-18 22:52:16,714 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES 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: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=WIDEST; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=WIDEST; [2020-08-18 22:52:16,996 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-18 22:52:17,008 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-18 22:52:17,012 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-18 22:52:17,013 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-18 22:52:17,013 INFO L275 PluginConnector]: CDTParser initialized [2020-08-18 22:52:17,014 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops-crafted-1/sumt8.c [2020-08-18 22:52:17,078 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3a779391a/1b2366238386470a9777904d18190c92/FLAG2d286b0e6 [2020-08-18 22:52:17,559 INFO L306 CDTParser]: Found 1 translation units. [2020-08-18 22:52:17,560 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/loops-crafted-1/sumt8.c [2020-08-18 22:52:17,566 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3a779391a/1b2366238386470a9777904d18190c92/FLAG2d286b0e6 [2020-08-18 22:52:17,959 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3a779391a/1b2366238386470a9777904d18190c92 [2020-08-18 22:52:17,968 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-18 22:52:17,970 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-18 22:52:17,973 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-18 22:52:17,974 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-18 22:52:17,977 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-18 22:52:17,978 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.08 10:52:17" (1/1) ... [2020-08-18 22:52:17,982 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5514a342 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 10:52:17, skipping insertion in model container [2020-08-18 22:52:17,982 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.08 10:52:17" (1/1) ... [2020-08-18 22:52:17,991 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-18 22:52:18,013 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-18 22:52:18,176 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-18 22:52:18,180 INFO L203 MainTranslator]: Completed pre-run [2020-08-18 22:52:18,203 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-18 22:52:18,218 INFO L208 MainTranslator]: Completed translation [2020-08-18 22:52:18,219 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 10:52:18 WrapperNode [2020-08-18 22:52:18,219 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-18 22:52:18,220 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-18 22:52:18,220 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-18 22:52:18,220 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-18 22:52:18,312 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 10:52:18" (1/1) ... [2020-08-18 22:52:18,314 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 10:52:18" (1/1) ... [2020-08-18 22:52:18,325 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 10:52:18" (1/1) ... [2020-08-18 22:52:18,326 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 10:52:18" (1/1) ... [2020-08-18 22:52:18,337 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 10:52:18" (1/1) ... [2020-08-18 22:52:18,343 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 10:52:18" (1/1) ... [2020-08-18 22:52:18,344 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 10:52:18" (1/1) ... [2020-08-18 22:52:18,346 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-18 22:52:18,347 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-18 22:52:18,347 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-18 22:52:18,347 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-18 22:52:18,348 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 10:52:18" (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 [2020-08-18 22:52:18,411 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-18 22:52:18,411 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-18 22:52:18,411 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-08-18 22:52:18,411 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-08-18 22:52:18,412 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-18 22:52:18,412 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-18 22:52:18,412 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-08-18 22:52:18,412 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-08-18 22:52:18,412 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-08-18 22:52:18,412 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-18 22:52:18,413 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-18 22:52:18,413 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-18 22:52:18,413 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-18 22:52:18,688 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-18 22:52:18,688 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-08-18 22:52:18,692 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.08 10:52:18 BoogieIcfgContainer [2020-08-18 22:52:18,693 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-18 22:52:18,694 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-18 22:52:18,694 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-18 22:52:18,697 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-18 22:52:18,698 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.08 10:52:17" (1/3) ... [2020-08-18 22:52:18,699 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a1107eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.08 10:52:18, skipping insertion in model container [2020-08-18 22:52:18,699 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 10:52:18" (2/3) ... [2020-08-18 22:52:18,699 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a1107eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.08 10:52:18, skipping insertion in model container [2020-08-18 22:52:18,699 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.08 10:52:18" (3/3) ... [2020-08-18 22:52:18,701 INFO L109 eAbstractionObserver]: Analyzing ICFG sumt8.c [2020-08-18 22:52:18,713 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-18 22:52:18,720 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-18 22:52:18,735 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-18 22:52:18,770 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-18 22:52:18,770 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-18 22:52:18,770 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-18 22:52:18,771 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-18 22:52:18,771 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-18 22:52:18,771 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-18 22:52:18,771 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-18 22:52:18,772 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-18 22:52:18,797 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states. [2020-08-18 22:52:18,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-08-18 22:52:18,805 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 22:52:18,807 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 22:52:18,807 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 22:52:18,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 22:52:18,815 INFO L82 PathProgramCache]: Analyzing trace with hash -1078562183, now seen corresponding path program 1 times [2020-08-18 22:52:18,825 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 22:52:18,825 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1295433840] [2020-08-18 22:52:18,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 22:52:18,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:52:19,293 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 22:52:19,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:52:19,305 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-18 22:52:19,306 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1295433840] [2020-08-18 22:52:19,308 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 22:52:19,309 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-08-18 22:52:19,310 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1175268112] [2020-08-18 22:52:19,315 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-18 22:52:19,316 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 22:52:19,331 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-18 22:52:19,332 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-08-18 22:52:19,334 INFO L87 Difference]: Start difference. First operand 28 states. Second operand 8 states. [2020-08-18 22:52:19,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 22:52:19,644 INFO L93 Difference]: Finished difference Result 47 states and 67 transitions. [2020-08-18 22:52:19,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-08-18 22:52:19,647 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 14 [2020-08-18 22:52:19,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 22:52:19,657 INFO L225 Difference]: With dead ends: 47 [2020-08-18 22:52:19,657 INFO L226 Difference]: Without dead ends: 0 [2020-08-18 22:52:19,667 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2020-08-18 22:52:19,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-08-18 22:52:19,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-08-18 22:52:19,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-08-18 22:52:19,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-08-18 22:52:19,698 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2020-08-18 22:52:19,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 22:52:19,699 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-08-18 22:52:19,699 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-18 22:52:19,699 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-08-18 22:52:19,699 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-08-18 22:52:19,700 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-18 22:52:19,703 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-08-18 22:52:19,792 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-08-18 22:52:19,792 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (= ~SIZE~0 |old(~SIZE~0)|) [2020-08-18 22:52:19,793 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-08-18 22:52:19,793 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-08-18 22:52:19,793 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-08-18 22:52:19,793 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-08-18 22:52:19,793 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-08-18 22:52:19,794 INFO L268 CegarLoopResult]: For program point assume_abort_if_notENTRY(lines 3 5) no Hoare annotation was computed. [2020-08-18 22:52:19,794 INFO L268 CegarLoopResult]: For program point L4(line 4) no Hoare annotation was computed. [2020-08-18 22:52:19,794 INFO L268 CegarLoopResult]: For program point L4-2(lines 3 5) no Hoare annotation was computed. [2020-08-18 22:52:19,794 INFO L268 CegarLoopResult]: For program point assume_abort_if_notEXIT(lines 3 5) no Hoare annotation was computed. [2020-08-18 22:52:19,795 INFO L268 CegarLoopResult]: For program point L31(lines 31 36) no Hoare annotation was computed. [2020-08-18 22:52:19,795 INFO L268 CegarLoopResult]: For program point L27(lines 27 36) no Hoare annotation was computed. [2020-08-18 22:52:19,795 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 14 41) no Hoare annotation was computed. [2020-08-18 22:52:19,795 INFO L268 CegarLoopResult]: For program point L23(lines 23 36) no Hoare annotation was computed. [2020-08-18 22:52:19,796 INFO L268 CegarLoopResult]: For program point L19-2(lines 19 39) no Hoare annotation was computed. [2020-08-18 22:52:19,796 INFO L268 CegarLoopResult]: For program point L33(lines 33 36) no Hoare annotation was computed. [2020-08-18 22:52:19,796 INFO L268 CegarLoopResult]: For program point L33-2(lines 21 36) no Hoare annotation was computed. [2020-08-18 22:52:19,796 INFO L268 CegarLoopResult]: For program point L29(lines 29 36) no Hoare annotation was computed. [2020-08-18 22:52:19,796 INFO L268 CegarLoopResult]: For program point L25(lines 25 36) no Hoare annotation was computed. [2020-08-18 22:52:19,796 INFO L268 CegarLoopResult]: For program point L21(lines 21 36) no Hoare annotation was computed. [2020-08-18 22:52:19,797 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 14 41) no Hoare annotation was computed. [2020-08-18 22:52:19,797 INFO L264 CegarLoopResult]: At program point L38(line 38) the Hoare annotation is: (let ((.cse0 (+ main_~i~0 main_~j~0 main_~k~0 main_~v1~0 main_~v2~0 main_~v3~0 main_~v4~0 main_~v5~0))) (and (<= main_~l~0 .cse0) (<= .cse0 main_~l~0))) [2020-08-18 22:52:19,798 INFO L264 CegarLoopResult]: At program point L38-1(lines 19 39) the Hoare annotation is: (let ((.cse0 (+ main_~i~0 main_~j~0 main_~k~0 main_~v1~0 main_~v2~0 main_~v3~0 main_~v4~0 main_~v5~0))) (and (<= main_~l~0 .cse0) (<= .cse0 main_~l~0))) [2020-08-18 22:52:19,798 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 14 41) the Hoare annotation is: true [2020-08-18 22:52:19,798 INFO L268 CegarLoopResult]: For program point L18(line 18) no Hoare annotation was computed. [2020-08-18 22:52:19,798 INFO L271 CegarLoopResult]: At program point __VERIFIER_assertENTRY(lines 6 11) the Hoare annotation is: true [2020-08-18 22:52:19,799 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertEXIT(lines 6 11) no Hoare annotation was computed. [2020-08-18 22:52:19,799 INFO L268 CegarLoopResult]: For program point L8(line 8) no Hoare annotation was computed. [2020-08-18 22:52:19,799 INFO L268 CegarLoopResult]: For program point L7(lines 7 9) no Hoare annotation was computed. [2020-08-18 22:52:19,799 INFO L268 CegarLoopResult]: For program point L7-2(lines 6 11) no Hoare annotation was computed. [2020-08-18 22:52:19,800 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 8) no Hoare annotation was computed. [2020-08-18 22:52:19,835 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.08 10:52:19 BoogieIcfgContainer [2020-08-18 22:52:19,836 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-18 22:52:19,840 INFO L168 Benchmark]: Toolchain (without parser) took 1867.66 ms. Allocated memory was 142.1 MB in the beginning and 231.7 MB in the end (delta: 89.7 MB). Free memory was 105.0 MB in the beginning and 202.2 MB in the end (delta: -97.2 MB). Peak memory consumption was 78.4 MB. Max. memory is 7.1 GB. [2020-08-18 22:52:19,842 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 142.1 MB. Free memory was 123.6 MB in the beginning and 123.2 MB in the end (delta: 419.7 kB). Peak memory consumption was 419.7 kB. Max. memory is 7.1 GB. [2020-08-18 22:52:19,844 INFO L168 Benchmark]: CACSL2BoogieTranslator took 246.13 ms. Allocated memory is still 142.1 MB. Free memory was 104.6 MB in the beginning and 94.5 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 7.1 GB. [2020-08-18 22:52:19,846 INFO L168 Benchmark]: Boogie Preprocessor took 126.37 ms. Allocated memory was 142.1 MB in the beginning and 204.5 MB in the end (delta: 62.4 MB). Free memory was 94.5 MB in the beginning and 181.7 MB in the end (delta: -87.2 MB). Peak memory consumption was 12.6 MB. Max. memory is 7.1 GB. [2020-08-18 22:52:19,847 INFO L168 Benchmark]: RCFGBuilder took 346.20 ms. Allocated memory is still 204.5 MB. Free memory was 181.7 MB in the beginning and 165.6 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 7.1 GB. [2020-08-18 22:52:19,848 INFO L168 Benchmark]: TraceAbstraction took 1141.53 ms. Allocated memory was 204.5 MB in the beginning and 231.7 MB in the end (delta: 27.3 MB). Free memory was 165.6 MB in the beginning and 202.2 MB in the end (delta: -36.6 MB). Peak memory consumption was 76.7 MB. Max. memory is 7.1 GB. [2020-08-18 22:52:19,858 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 142.1 MB. Free memory was 123.6 MB in the beginning and 123.2 MB in the end (delta: 419.7 kB). Peak memory consumption was 419.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 246.13 ms. Allocated memory is still 142.1 MB. Free memory was 104.6 MB in the beginning and 94.5 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 126.37 ms. Allocated memory was 142.1 MB in the beginning and 204.5 MB in the end (delta: 62.4 MB). Free memory was 94.5 MB in the beginning and 181.7 MB in the end (delta: -87.2 MB). Peak memory consumption was 12.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 346.20 ms. Allocated memory is still 204.5 MB. Free memory was 181.7 MB in the beginning and 165.6 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1141.53 ms. Allocated memory was 204.5 MB in the beginning and 231.7 MB in the end (delta: 27.3 MB). Free memory was 165.6 MB in the beginning and 202.2 MB in the end (delta: -36.6 MB). Peak memory consumption was 76.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 8]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: l <= i + j + k + v1 + v2 + v3 + v4 + v5 && i + j + k + v1 + v2 + v3 + v4 + v5 <= l - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 32 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 0.9s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 12 SDtfs, 33 SDslu, 42 SDs, 0 SdLazy, 110 SolverSat, 22 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=28occurred 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, 7 LocationsWithAnnotation, 8 PreInvPairs, 10 NumberOfFragments, 53 HoareAnnotationTreeSize, 8 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 19 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 14 NumberOfCodeBlocks, 14 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 13 ConstructedInterpolants, 0 QuantifiedInterpolants, 2405 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...