/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc config/AutomizerReach.xml -s config/svcomp-Reach-64bit-Automizer_Default.epf -i ../sv-benchmarks/c/loop-invariants/linear-inequality-inv-b.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-4f750a8 [2020-12-22 04:49:05,093 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-22 04:49:05,096 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-22 04:49:05,148 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-22 04:49:05,149 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-22 04:49:05,154 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-22 04:49:05,158 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-22 04:49:05,166 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-22 04:49:05,169 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-22 04:49:05,175 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-22 04:49:05,177 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-22 04:49:05,178 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-22 04:49:05,179 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-22 04:49:05,181 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-22 04:49:05,183 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-22 04:49:05,185 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-22 04:49:05,186 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-22 04:49:05,190 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-22 04:49:05,197 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-22 04:49:05,201 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-22 04:49:05,205 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-22 04:49:05,207 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-22 04:49:05,208 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-22 04:49:05,210 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-22 04:49:05,221 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-12-22 04:49:05,233 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-22 04:49:05,234 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-22 04:49:05,235 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-22 04:49:05,236 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-22 04:49:05,288 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-22 04:49:05,288 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-22 04:49:05,293 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-22 04:49:05,293 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-22 04:49:05,293 INFO L138 SettingsManager]: * Use SBE=true [2020-12-22 04:49:05,294 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-22 04:49:05,294 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-22 04:49:05,294 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-22 04:49:05,294 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-22 04:49:05,295 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-22 04:49:05,296 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-22 04:49:05,296 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-22 04:49:05,296 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-22 04:49:05,297 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-22 04:49:05,297 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-22 04:49:05,297 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-22 04:49:05,297 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-22 04:49:05,297 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 04:49:05,298 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-22 04:49:05,298 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-22 04:49:05,298 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-22 04:49:05,298 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-22 04:49:05,299 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-22 04:49:05,299 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-22 04:49:05,299 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-22 04:49:05,299 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-22 04:49:05,709 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-22 04:49:05,733 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-22 04:49:05,736 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-22 04:49:05,737 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-22 04:49:05,738 INFO L275 PluginConnector]: CDTParser initialized [2020-12-22 04:49:05,739 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loop-invariants/linear-inequality-inv-b.c [2020-12-22 04:49:05,828 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0540ca3d4/00c47a3868bb43e59330b369f6198cae/FLAG581fa904c [2020-12-22 04:49:06,391 INFO L306 CDTParser]: Found 1 translation units. [2020-12-22 04:49:06,392 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invariants/linear-inequality-inv-b.c [2020-12-22 04:49:06,398 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0540ca3d4/00c47a3868bb43e59330b369f6198cae/FLAG581fa904c [2020-12-22 04:49:06,777 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0540ca3d4/00c47a3868bb43e59330b369f6198cae [2020-12-22 04:49:06,780 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-22 04:49:06,783 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-22 04:49:06,787 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-22 04:49:06,787 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-22 04:49:06,791 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-22 04:49:06,792 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 04:49:06" (1/1) ... [2020-12-22 04:49:06,794 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d4a6101 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:49:06, skipping insertion in model container [2020-12-22 04:49:06,795 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 04:49:06" (1/1) ... [2020-12-22 04:49:06,809 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-22 04:49:06,828 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-22 04:49:07,038 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invariants/linear-inequality-inv-b.c[557,570] [2020-12-22 04:49:07,049 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invariants/linear-inequality-inv-b.c[613,626] [2020-12-22 04:49:07,051 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 04:49:07,064 INFO L203 MainTranslator]: Completed pre-run [2020-12-22 04:49:07,083 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invariants/linear-inequality-inv-b.c[557,570] [2020-12-22 04:49:07,085 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invariants/linear-inequality-inv-b.c[613,626] [2020-12-22 04:49:07,087 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 04:49:07,107 INFO L208 MainTranslator]: Completed translation [2020-12-22 04:49:07,108 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:49:07 WrapperNode [2020-12-22 04:49:07,109 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-22 04:49:07,111 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-22 04:49:07,111 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-22 04:49:07,114 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-22 04:49:07,123 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:49:07" (1/1) ... [2020-12-22 04:49:07,133 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:49:07" (1/1) ... [2020-12-22 04:49:07,154 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-22 04:49:07,156 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-22 04:49:07,156 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-22 04:49:07,156 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-22 04:49:07,165 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:49:07" (1/1) ... [2020-12-22 04:49:07,165 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:49:07" (1/1) ... [2020-12-22 04:49:07,179 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:49:07" (1/1) ... [2020-12-22 04:49:07,180 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:49:07" (1/1) ... [2020-12-22 04:49:07,185 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:49:07" (1/1) ... [2020-12-22 04:49:07,189 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:49:07" (1/1) ... [2020-12-22 04:49:07,196 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:49:07" (1/1) ... [2020-12-22 04:49:07,198 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-22 04:49:07,199 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-22 04:49:07,200 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-22 04:49:07,200 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-22 04:49:07,201 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:49:07" (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 [2020-12-22 04:49:07,292 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-22 04:49:07,292 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-22 04:49:07,292 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-22 04:49:07,293 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-22 04:49:07,510 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-22 04:49:07,511 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2020-12-22 04:49:07,513 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 04:49:07 BoogieIcfgContainer [2020-12-22 04:49:07,513 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-22 04:49:07,515 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-22 04:49:07,515 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-22 04:49:07,519 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-22 04:49:07,519 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 04:49:06" (1/3) ... [2020-12-22 04:49:07,520 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77865cf0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 04:49:07, skipping insertion in model container [2020-12-22 04:49:07,520 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:49:07" (2/3) ... [2020-12-22 04:49:07,521 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77865cf0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 04:49:07, skipping insertion in model container [2020-12-22 04:49:07,521 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 04:49:07" (3/3) ... [2020-12-22 04:49:07,523 INFO L111 eAbstractionObserver]: Analyzing ICFG linear-inequality-inv-b.c [2020-12-22 04:49:07,530 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-22 04:49:07,534 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-12-22 04:49:07,556 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2020-12-22 04:49:07,615 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-22 04:49:07,615 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-22 04:49:07,616 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-22 04:49:07,616 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-22 04:49:07,616 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-22 04:49:07,641 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-22 04:49:07,641 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-22 04:49:07,642 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-22 04:49:07,671 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states. [2020-12-22 04:49:07,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-12-22 04:49:07,693 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 04:49:07,693 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-12-22 04:49:07,694 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 04:49:07,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 04:49:07,706 INFO L82 PathProgramCache]: Analyzing trace with hash 889577263, now seen corresponding path program 1 times [2020-12-22 04:49:07,734 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 04:49:07,735 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1791910459] [2020-12-22 04:49:07,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 04:49:07,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 04:49:07,962 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 04:49:07,964 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1791910459] [2020-12-22 04:49:07,965 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 04:49:07,965 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 04:49:07,966 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [946704416] [2020-12-22 04:49:07,971 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-22 04:49:07,972 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 04:49:07,992 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-22 04:49:07,993 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-22 04:49:07,995 INFO L87 Difference]: Start difference. First operand 13 states. Second operand 2 states. [2020-12-22 04:49:08,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 04:49:08,013 INFO L93 Difference]: Finished difference Result 20 states and 25 transitions. [2020-12-22 04:49:08,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-22 04:49:08,015 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 6 [2020-12-22 04:49:08,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 04:49:08,031 INFO L225 Difference]: With dead ends: 20 [2020-12-22 04:49:08,031 INFO L226 Difference]: Without dead ends: 7 [2020-12-22 04:49:08,036 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-22 04:49:08,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states. [2020-12-22 04:49:08,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2020-12-22 04:49:08,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-12-22 04:49:08,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 7 transitions. [2020-12-22 04:49:08,073 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 7 transitions. Word has length 6 [2020-12-22 04:49:08,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 04:49:08,073 INFO L481 AbstractCegarLoop]: Abstraction has 7 states and 7 transitions. [2020-12-22 04:49:08,073 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-22 04:49:08,074 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 7 transitions. [2020-12-22 04:49:08,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-12-22 04:49:08,075 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 04:49:08,075 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-12-22 04:49:08,075 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-22 04:49:08,076 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 04:49:08,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 04:49:08,082 INFO L82 PathProgramCache]: Analyzing trace with hash 889573419, now seen corresponding path program 1 times [2020-12-22 04:49:08,083 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 04:49:08,083 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2139941326] [2020-12-22 04:49:08,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 04:49:08,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 04:49:08,221 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 04:49:08,222 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2139941326] [2020-12-22 04:49:08,222 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 04:49:08,222 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 04:49:08,222 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [283783358] [2020-12-22 04:49:08,224 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 04:49:08,224 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 04:49:08,225 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 04:49:08,225 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 04:49:08,225 INFO L87 Difference]: Start difference. First operand 7 states and 7 transitions. Second operand 3 states. [2020-12-22 04:49:08,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 04:49:08,248 INFO L93 Difference]: Finished difference Result 11 states and 11 transitions. [2020-12-22 04:49:08,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 04:49:08,251 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2020-12-22 04:49:08,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 04:49:08,252 INFO L225 Difference]: With dead ends: 11 [2020-12-22 04:49:08,252 INFO L226 Difference]: Without dead ends: 8 [2020-12-22 04:49:08,253 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 04:49:08,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2020-12-22 04:49:08,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2020-12-22 04:49:08,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2020-12-22 04:49:08,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2020-12-22 04:49:08,259 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 8 transitions. Word has length 6 [2020-12-22 04:49:08,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 04:49:08,260 INFO L481 AbstractCegarLoop]: Abstraction has 8 states and 8 transitions. [2020-12-22 04:49:08,260 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 04:49:08,260 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2020-12-22 04:49:08,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-12-22 04:49:08,260 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 04:49:08,261 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-12-22 04:49:08,261 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-22 04:49:08,262 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 04:49:08,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 04:49:08,263 INFO L82 PathProgramCache]: Analyzing trace with hash 1807024099, now seen corresponding path program 1 times [2020-12-22 04:49:08,263 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 04:49:08,263 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1346235221] [2020-12-22 04:49:08,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 04:49:08,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 04:49:08,380 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 04:49:08,381 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1346235221] [2020-12-22 04:49:08,381 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1319391522] [2020-12-22 04:49:08,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 04:49:08,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 04:49:08,452 INFO L263 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 5 conjunts are in the unsatisfiable core [2020-12-22 04:49:08,457 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 04:49:08,499 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 04:49:08,500 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-22 04:49:08,500 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2020-12-22 04:49:08,500 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1222271968] [2020-12-22 04:49:08,501 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 04:49:08,501 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 04:49:08,502 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 04:49:08,502 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-22 04:49:08,502 INFO L87 Difference]: Start difference. First operand 8 states and 8 transitions. Second operand 5 states. [2020-12-22 04:49:08,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 04:49:08,541 INFO L93 Difference]: Finished difference Result 12 states and 12 transitions. [2020-12-22 04:49:08,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-22 04:49:08,542 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 7 [2020-12-22 04:49:08,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 04:49:08,543 INFO L225 Difference]: With dead ends: 12 [2020-12-22 04:49:08,543 INFO L226 Difference]: Without dead ends: 9 [2020-12-22 04:49:08,543 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-12-22 04:49:08,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2020-12-22 04:49:08,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2020-12-22 04:49:08,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-12-22 04:49:08,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2020-12-22 04:49:08,547 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 7 [2020-12-22 04:49:08,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 04:49:08,547 INFO L481 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2020-12-22 04:49:08,547 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 04:49:08,547 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2020-12-22 04:49:08,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-12-22 04:49:08,548 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 04:49:08,548 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2020-12-22 04:49:08,763 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2020-12-22 04:49:08,764 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 04:49:08,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 04:49:08,766 INFO L82 PathProgramCache]: Analyzing trace with hash 183224107, now seen corresponding path program 2 times [2020-12-22 04:49:08,766 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 04:49:08,767 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1061471191] [2020-12-22 04:49:08,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 04:49:08,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-22 04:49:08,798 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-22 04:49:08,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-22 04:49:08,827 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-22 04:49:08,846 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-22 04:49:08,847 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-12-22 04:49:08,847 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-22 04:49:08,871 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.12 04:49:08 BoogieIcfgContainer [2020-12-22 04:49:08,872 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-22 04:49:08,872 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-22 04:49:08,872 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-22 04:49:08,873 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-22 04:49:08,873 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 04:49:07" (3/4) ... [2020-12-22 04:49:08,875 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-12-22 04:49:08,918 INFO L141 WitnessManager]: Wrote witness to /storage/repos/svcomp/c/loop-invariants/linear-inequality-inv-b.c-witness.graphml [2020-12-22 04:49:08,918 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-22 04:49:08,920 INFO L168 Benchmark]: Toolchain (without parser) took 2136.72 ms. Allocated memory is still 172.0 MB. Free memory was 145.9 MB in the beginning and 109.4 MB in the end (delta: 36.6 MB). Peak memory consumption was 35.7 MB. Max. memory is 8.0 GB. [2020-12-22 04:49:08,921 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 172.0 MB. Free memory is still 142.7 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-12-22 04:49:08,921 INFO L168 Benchmark]: CACSL2BoogieTranslator took 322.60 ms. Allocated memory is still 172.0 MB. Free memory was 145.8 MB in the beginning and 136.5 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2020-12-22 04:49:08,922 INFO L168 Benchmark]: Boogie Procedure Inliner took 43.38 ms. Allocated memory is still 172.0 MB. Free memory was 136.3 MB in the beginning and 135.0 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-12-22 04:49:08,922 INFO L168 Benchmark]: Boogie Preprocessor took 43.03 ms. Allocated memory is still 172.0 MB. Free memory was 135.0 MB in the beginning and 134.1 MB in the end (delta: 860.1 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-12-22 04:49:08,923 INFO L168 Benchmark]: RCFGBuilder took 313.53 ms. Allocated memory is still 172.0 MB. Free memory was 134.0 MB in the beginning and 122.5 MB in the end (delta: 11.4 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. [2020-12-22 04:49:08,924 INFO L168 Benchmark]: TraceAbstraction took 1356.88 ms. Allocated memory is still 172.0 MB. Free memory was 122.1 MB in the beginning and 111.5 MB in the end (delta: 10.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. [2020-12-22 04:49:08,924 INFO L168 Benchmark]: Witness Printer took 45.97 ms. Allocated memory is still 172.0 MB. Free memory was 111.5 MB in the beginning and 109.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-12-22 04:49:08,928 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 172.0 MB. Free memory is still 142.7 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 322.60 ms. Allocated memory is still 172.0 MB. Free memory was 145.8 MB in the beginning and 136.5 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 43.38 ms. Allocated memory is still 172.0 MB. Free memory was 136.3 MB in the beginning and 135.0 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 43.03 ms. Allocated memory is still 172.0 MB. Free memory was 135.0 MB in the beginning and 134.1 MB in the end (delta: 860.1 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 313.53 ms. Allocated memory is still 172.0 MB. Free memory was 134.0 MB in the beginning and 122.5 MB in the end (delta: 11.4 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. * TraceAbstraction took 1356.88 ms. Allocated memory is still 172.0 MB. Free memory was 122.1 MB in the beginning and 111.5 MB in the end (delta: 10.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. * Witness Printer took 45.97 ms. Allocated memory is still 172.0 MB. Free memory was 111.5 MB in the beginning and 109.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 18]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L5] unsigned char n = __VERIFIER_nondet_uchar(); [L6] COND FALSE !(n == 0) [L9] unsigned char v = 0; [L10] unsigned char s = 0; [L11] unsigned int i = 0; [L12] COND TRUE i < n [L13] v = __VERIFIER_nondet_uchar() [L14] s += v [L15] ++i [L12] COND TRUE i < n [L13] v = __VERIFIER_nondet_uchar() [L14] s += v [L15] ++i [L12] COND FALSE !(i < n) [L17] COND TRUE s < v [L18] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 13 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.2s, OverallIterations: 4, TraceHistogramMax: 2, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 24 SDtfs, 0 SDslu, 12 SDs, 0 SdLazy, 14 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 16 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=13occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 34 NumberOfCodeBlocks, 34 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 22 ConstructedInterpolants, 0 QuantifiedInterpolants, 412 SizeOfPredicates, 2 NumberOfNonLiveVariables, 50 ConjunctsInSsa, 5 ConjunctsInUnsatCore, 4 InterpolantComputations, 2 PerfectInterpolantSequences, 0/2 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 incorrect! Received shutdown request...