/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 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/loop-crafted/simple_vardep_1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-72570d3 [2020-08-22 16:57:34,032 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-22 16:57:34,035 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-22 16:57:34,074 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-22 16:57:34,075 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-22 16:57:34,083 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-22 16:57:34,086 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-22 16:57:34,090 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-22 16:57:34,093 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-22 16:57:34,097 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-22 16:57:34,098 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-22 16:57:34,099 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-22 16:57:34,099 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-22 16:57:34,100 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-22 16:57:34,101 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-22 16:57:34,102 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-22 16:57:34,102 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-22 16:57:34,103 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-22 16:57:34,105 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-22 16:57:34,106 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-22 16:57:34,108 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-22 16:57:34,109 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-22 16:57:34,110 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-22 16:57:34,110 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-22 16:57:34,113 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-22 16:57:34,113 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-22 16:57:34,113 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-22 16:57:34,114 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-22 16:57:34,114 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-22 16:57:34,115 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-22 16:57:34,115 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-22 16:57:34,116 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-22 16:57:34,117 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-22 16:57:34,117 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-22 16:57:34,118 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-22 16:57:34,119 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-22 16:57:34,119 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-22 16:57:34,120 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-22 16:57:34,120 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-22 16:57:34,121 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-22 16:57:34,121 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-22 16:57:34,122 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-08-22 16:57:34,144 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-22 16:57:34,144 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-22 16:57:34,146 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-22 16:57:34,146 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-22 16:57:34,146 INFO L138 SettingsManager]: * Use SBE=true [2020-08-22 16:57:34,146 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-22 16:57:34,146 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-22 16:57:34,147 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-22 16:57:34,147 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-22 16:57:34,147 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-22 16:57:34,147 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-22 16:57:34,147 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-22 16:57:34,148 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-22 16:57:34,148 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-22 16:57:34,148 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-22 16:57:34,148 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-22 16:57:34,148 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-22 16:57:34,149 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-22 16:57:34,149 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-22 16:57:34,149 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-22 16:57:34,149 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-22 16:57:34,150 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-22 16:57:34,150 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-22 16:57:34,150 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-22 16:57:34,150 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-22 16:57:34,150 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-22 16:57:34,151 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-22 16:57:34,151 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-22 16:57:34,151 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-22 16:57:34,151 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-08-22 16:57:34,445 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-22 16:57:34,457 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-22 16:57:34,462 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-22 16:57:34,464 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-22 16:57:34,465 INFO L275 PluginConnector]: CDTParser initialized [2020-08-22 16:57:34,466 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-crafted/simple_vardep_1.c [2020-08-22 16:57:34,539 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2805cdf4b/6bb340ad34b94a9fab72fdf9936039c7/FLAG477e4920e [2020-08-22 16:57:34,948 INFO L306 CDTParser]: Found 1 translation units. [2020-08-22 16:57:34,949 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-crafted/simple_vardep_1.c [2020-08-22 16:57:34,956 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2805cdf4b/6bb340ad34b94a9fab72fdf9936039c7/FLAG477e4920e [2020-08-22 16:57:35,323 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2805cdf4b/6bb340ad34b94a9fab72fdf9936039c7 [2020-08-22 16:57:35,331 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-22 16:57:35,333 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-22 16:57:35,334 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-22 16:57:35,334 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-22 16:57:35,339 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-22 16:57:35,340 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 04:57:35" (1/1) ... [2020-08-22 16:57:35,343 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6747eb00 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:57:35, skipping insertion in model container [2020-08-22 16:57:35,344 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 04:57:35" (1/1) ... [2020-08-22 16:57:35,352 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-22 16:57:35,371 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-22 16:57:35,548 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 16:57:35,552 INFO L203 MainTranslator]: Completed pre-run [2020-08-22 16:57:35,565 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 16:57:35,578 INFO L208 MainTranslator]: Completed translation [2020-08-22 16:57:35,578 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:57:35 WrapperNode [2020-08-22 16:57:35,578 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-22 16:57:35,579 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-22 16:57:35,579 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-22 16:57:35,579 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-22 16:57:35,588 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:57:35" (1/1) ... [2020-08-22 16:57:35,589 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:57:35" (1/1) ... [2020-08-22 16:57:35,593 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:57:35" (1/1) ... [2020-08-22 16:57:35,593 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:57:35" (1/1) ... [2020-08-22 16:57:35,687 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:57:35" (1/1) ... [2020-08-22 16:57:35,692 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:57:35" (1/1) ... [2020-08-22 16:57:35,693 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:57:35" (1/1) ... [2020-08-22 16:57:35,694 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-22 16:57:35,694 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-22 16:57:35,695 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-22 16:57:35,695 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-22 16:57:35,695 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:57:35" (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 [2020-08-22 16:57:35,751 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-22 16:57:35,751 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-22 16:57:35,751 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-08-22 16:57:35,752 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-22 16:57:35,752 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-22 16:57:35,752 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-08-22 16:57:35,753 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-22 16:57:35,754 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-22 16:57:35,754 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-22 16:57:35,924 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-22 16:57:35,925 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-08-22 16:57:35,928 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 04:57:35 BoogieIcfgContainer [2020-08-22 16:57:35,929 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-22 16:57:35,930 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-22 16:57:35,930 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-22 16:57:35,933 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-22 16:57:35,934 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.08 04:57:35" (1/3) ... [2020-08-22 16:57:35,935 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3582c0f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 04:57:35, skipping insertion in model container [2020-08-22 16:57:35,935 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:57:35" (2/3) ... [2020-08-22 16:57:35,935 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3582c0f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 04:57:35, skipping insertion in model container [2020-08-22 16:57:35,935 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 04:57:35" (3/3) ... [2020-08-22 16:57:35,937 INFO L109 eAbstractionObserver]: Analyzing ICFG simple_vardep_1.c [2020-08-22 16:57:35,945 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-08-22 16:57:35,952 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-22 16:57:35,965 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-22 16:57:35,990 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-22 16:57:35,990 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-22 16:57:35,991 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-08-22 16:57:35,991 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-22 16:57:35,991 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-22 16:57:35,991 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-22 16:57:35,991 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-22 16:57:35,991 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-22 16:57:36,009 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states. [2020-08-22 16:57:36,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-08-22 16:57:36,014 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 16:57:36,015 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 16:57:36,015 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 16:57:36,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 16:57:36,020 INFO L82 PathProgramCache]: Analyzing trace with hash 1847991872, now seen corresponding path program 1 times [2020-08-22 16:57:36,027 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-08-22 16:57:36,027 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1334572985] [2020-08-22 16:57:36,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 16:57:36,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:57:36,606 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 18 [2020-08-22 16:57:36,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 16:57:36,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:57:36,640 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 16:57:36,643 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1334572985] [2020-08-22 16:57:36,644 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 16:57:36,644 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-08-22 16:57:36,647 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [64007958] [2020-08-22 16:57:36,652 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-22 16:57:36,653 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-08-22 16:57:36,667 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-22 16:57:36,669 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-08-22 16:57:36,671 INFO L87 Difference]: Start difference. First operand 17 states. Second operand 6 states. [2020-08-22 16:57:36,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 16:57:36,756 INFO L93 Difference]: Finished difference Result 27 states and 32 transitions. [2020-08-22 16:57:36,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-08-22 16:57:36,758 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 10 [2020-08-22 16:57:36,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 16:57:36,765 INFO L225 Difference]: With dead ends: 27 [2020-08-22 16:57:36,766 INFO L226 Difference]: Without dead ends: 0 [2020-08-22 16:57:36,770 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-08-22 16:57:36,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-08-22 16:57:36,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-08-22 16:57:36,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-08-22 16:57:36,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-08-22 16:57:36,800 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 10 [2020-08-22 16:57:36,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 16:57:36,801 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-08-22 16:57:36,801 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-22 16:57:36,801 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-08-22 16:57:36,801 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-08-22 16:57:36,802 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-22 16:57:36,804 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-08-22 16:57:36,842 INFO L271 CegarLoopResult]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2020-08-22 16:57:36,842 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-08-22 16:57:36,843 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-08-22 16:57:36,843 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-08-22 16:57:36,843 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-08-22 16:57:36,843 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-08-22 16:57:36,844 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 13 27) the Hoare annotation is: true [2020-08-22 16:57:36,844 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 13 27) no Hoare annotation was computed. [2020-08-22 16:57:36,844 INFO L264 CegarLoopResult]: At program point L24(line 24) the Hoare annotation is: (let ((.cse0 (+ main_~i~0 main_~j~0))) (and (<= .cse0 main_~k~0) (<= main_~k~0 .cse0))) [2020-08-22 16:57:36,845 INFO L264 CegarLoopResult]: At program point L24-1(lines 19 25) the Hoare annotation is: (let ((.cse0 (+ main_~i~0 main_~j~0))) (and (<= .cse0 main_~k~0) (<= main_~k~0 .cse0))) [2020-08-22 16:57:36,845 INFO L268 CegarLoopResult]: For program point L19-2(lines 13 27) no Hoare annotation was computed. [2020-08-22 16:57:36,845 INFO L271 CegarLoopResult]: At program point __VERIFIER_assertENTRY(lines 5 11) the Hoare annotation is: true [2020-08-22 16:57:36,845 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertEXIT(lines 5 11) no Hoare annotation was computed. [2020-08-22 16:57:36,846 INFO L268 CegarLoopResult]: For program point L8(line 8) no Hoare annotation was computed. [2020-08-22 16:57:36,846 INFO L268 CegarLoopResult]: For program point L7(lines 7 9) no Hoare annotation was computed. [2020-08-22 16:57:36,846 INFO L268 CegarLoopResult]: For program point L7-2(lines 5 11) no Hoare annotation was computed. [2020-08-22 16:57:36,846 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 8) no Hoare annotation was computed. [2020-08-22 16:57:36,869 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.08 04:57:36 BoogieIcfgContainer [2020-08-22 16:57:36,869 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-22 16:57:36,872 INFO L168 Benchmark]: Toolchain (without parser) took 1538.27 ms. Allocated memory was 146.8 MB in the beginning and 202.9 MB in the end (delta: 56.1 MB). Free memory was 102.7 MB in the beginning and 132.0 MB in the end (delta: -29.3 MB). Peak memory consumption was 26.8 MB. Max. memory is 7.1 GB. [2020-08-22 16:57:36,874 INFO L168 Benchmark]: CDTParser took 1.44 ms. Allocated memory is still 146.8 MB. Free memory was 121.4 MB in the beginning and 121.2 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2020-08-22 16:57:36,876 INFO L168 Benchmark]: CACSL2BoogieTranslator took 244.51 ms. Allocated memory is still 146.8 MB. Free memory was 102.3 MB in the beginning and 93.0 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 7.1 GB. [2020-08-22 16:57:36,877 INFO L168 Benchmark]: Boogie Preprocessor took 115.21 ms. Allocated memory was 146.8 MB in the beginning and 202.9 MB in the end (delta: 56.1 MB). Free memory was 93.0 MB in the beginning and 181.9 MB in the end (delta: -88.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 7.1 GB. [2020-08-22 16:57:36,879 INFO L168 Benchmark]: RCFGBuilder took 234.48 ms. Allocated memory is still 202.9 MB. Free memory was 181.9 MB in the beginning and 170.2 MB in the end (delta: 11.7 MB). Peak memory consumption was 11.7 MB. Max. memory is 7.1 GB. [2020-08-22 16:57:36,880 INFO L168 Benchmark]: TraceAbstraction took 939.25 ms. Allocated memory is still 202.9 MB. Free memory was 170.2 MB in the beginning and 132.0 MB in the end (delta: 38.2 MB). Peak memory consumption was 38.2 MB. Max. memory is 7.1 GB. [2020-08-22 16:57:36,891 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.44 ms. Allocated memory is still 146.8 MB. Free memory was 121.4 MB in the beginning and 121.2 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 244.51 ms. Allocated memory is still 146.8 MB. Free memory was 102.3 MB in the beginning and 93.0 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 115.21 ms. Allocated memory was 146.8 MB in the beginning and 202.9 MB in the end (delta: 56.1 MB). Free memory was 93.0 MB in the beginning and 181.9 MB in the end (delta: -88.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 234.48 ms. Allocated memory is still 202.9 MB. Free memory was 181.9 MB in the beginning and 170.2 MB in the end (delta: 11.7 MB). Peak memory consumption was 11.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 939.25 ms. Allocated memory is still 202.9 MB. Free memory was 170.2 MB in the beginning and 132.0 MB in the end (delta: 38.2 MB). Peak memory consumption was 38.2 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: i + j <= k && k <= i + j - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 17 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 0.8s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 10 SDtfs, 7 SDslu, 33 SDs, 0 SdLazy, 15 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=17occurred 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, 27 HoareAnnotationTreeSize, 8 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 10 NumberOfCodeBlocks, 10 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 603 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...