/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-DerefFreeMemtrack-64bit-Automizer_Default.epf -i ../sv-benchmarks/c/memory-alloca/c.03-alloca-2.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-4f750a8 [2020-12-22 19:17:04,355 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-22 19:17:04,358 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-22 19:17:04,393 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-22 19:17:04,393 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-22 19:17:04,395 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-22 19:17:04,397 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-22 19:17:04,399 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-22 19:17:04,401 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-22 19:17:04,403 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-22 19:17:04,404 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-22 19:17:04,406 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-22 19:17:04,406 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-22 19:17:04,407 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-22 19:17:04,409 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-22 19:17:04,410 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-22 19:17:04,415 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-22 19:17:04,418 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-22 19:17:04,433 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-22 19:17:04,439 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-22 19:17:04,444 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-22 19:17:04,447 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-22 19:17:04,449 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-22 19:17:04,451 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-22 19:17:04,460 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-12-22 19:17:04,469 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-22 19:17:04,471 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-22 19:17:04,472 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-22 19:17:04,474 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-22 19:17:04,478 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-22 19:17:04,479 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-22 19:17:04,480 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-22 19:17:04,480 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-22 19:17:04,481 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-22 19:17:04,482 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-22 19:17:04,484 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-22 19:17:04,485 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Default.epf [2020-12-22 19:17:04,540 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-22 19:17:04,542 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-22 19:17:04,544 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-22 19:17:04,545 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-22 19:17:04,546 INFO L138 SettingsManager]: * Use SBE=true [2020-12-22 19:17:04,547 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-22 19:17:04,547 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-12-22 19:17:04,547 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-22 19:17:04,547 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-22 19:17:04,548 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-12-22 19:17:04,549 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-12-22 19:17:04,549 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-12-22 19:17:04,549 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-22 19:17:04,550 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-12-22 19:17:04,550 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-22 19:17:04,550 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-22 19:17:04,550 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-22 19:17:04,551 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-22 19:17:04,551 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 19:17:04,551 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-22 19:17:04,551 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-22 19:17:04,552 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-22 19:17:04,552 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-22 19:17:04,552 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-22 19:17:04,552 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-22 19:17:05,014 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-22 19:17:05,058 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-22 19:17:05,061 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-22 19:17:05,063 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-22 19:17:05,064 INFO L275 PluginConnector]: CDTParser initialized [2020-12-22 19:17:05,065 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/memory-alloca/c.03-alloca-2.i [2020-12-22 19:17:05,140 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2454cca2f/c6837e19ef334e93969a8c62ef18252a/FLAG01f389b6c [2020-12-22 19:17:05,916 INFO L306 CDTParser]: Found 1 translation units. [2020-12-22 19:17:05,917 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/memory-alloca/c.03-alloca-2.i [2020-12-22 19:17:05,953 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2454cca2f/c6837e19ef334e93969a8c62ef18252a/FLAG01f389b6c [2020-12-22 19:17:06,139 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2454cca2f/c6837e19ef334e93969a8c62ef18252a [2020-12-22 19:17:06,143 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-22 19:17:06,146 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-22 19:17:06,150 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-22 19:17:06,150 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-22 19:17:06,155 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-22 19:17:06,156 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 07:17:06" (1/1) ... [2020-12-22 19:17:06,159 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ad02cfb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:17:06, skipping insertion in model container [2020-12-22 19:17:06,159 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 07:17:06" (1/1) ... [2020-12-22 19:17:06,170 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-22 19:17:06,233 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-22 19:17:06,567 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 19:17:06,585 INFO L203 MainTranslator]: Completed pre-run [2020-12-22 19:17:06,629 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 19:17:06,690 INFO L208 MainTranslator]: Completed translation [2020-12-22 19:17:06,691 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:17:06 WrapperNode [2020-12-22 19:17:06,691 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-22 19:17:06,692 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-22 19:17:06,692 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-22 19:17:06,693 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-22 19:17:06,701 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:17:06" (1/1) ... [2020-12-22 19:17:06,717 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:17:06" (1/1) ... [2020-12-22 19:17:06,742 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-22 19:17:06,743 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-22 19:17:06,743 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-22 19:17:06,743 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-22 19:17:06,752 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:17:06" (1/1) ... [2020-12-22 19:17:06,753 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:17:06" (1/1) ... [2020-12-22 19:17:06,757 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:17:06" (1/1) ... [2020-12-22 19:17:06,757 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:17:06" (1/1) ... [2020-12-22 19:17:06,762 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:17:06" (1/1) ... [2020-12-22 19:17:06,766 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:17:06" (1/1) ... [2020-12-22 19:17:06,769 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:17:06" (1/1) ... [2020-12-22 19:17:06,777 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-22 19:17:06,778 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-22 19:17:06,778 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-22 19:17:06,778 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-22 19:17:06,779 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:17:06" (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 19:17:06,917 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-22 19:17:06,917 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-22 19:17:06,917 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-22 19:17:06,917 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-22 19:17:06,918 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-22 19:17:06,919 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-22 19:17:07,388 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-22 19:17:07,388 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2020-12-22 19:17:07,391 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 07:17:07 BoogieIcfgContainer [2020-12-22 19:17:07,391 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-22 19:17:07,393 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-22 19:17:07,393 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-22 19:17:07,398 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-22 19:17:07,398 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 07:17:06" (1/3) ... [2020-12-22 19:17:07,399 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14aff881 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 07:17:07, skipping insertion in model container [2020-12-22 19:17:07,399 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:17:06" (2/3) ... [2020-12-22 19:17:07,399 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14aff881 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 07:17:07, skipping insertion in model container [2020-12-22 19:17:07,400 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 07:17:07" (3/3) ... [2020-12-22 19:17:07,401 INFO L111 eAbstractionObserver]: Analyzing ICFG c.03-alloca-2.i [2020-12-22 19:17:07,409 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-22 19:17:07,415 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 31 error locations. [2020-12-22 19:17:07,437 INFO L253 AbstractCegarLoop]: Starting to check reachability of 31 error locations. [2020-12-22 19:17:07,462 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-22 19:17:07,463 INFO L378 AbstractCegarLoop]: Hoare is false [2020-12-22 19:17:07,463 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-22 19:17:07,463 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-22 19:17:07,463 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-22 19:17:07,463 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-22 19:17:07,464 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-22 19:17:07,464 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-22 19:17:07,482 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states. [2020-12-22 19:17:07,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-12-22 19:17:07,489 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 19:17:07,490 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1] [2020-12-22 19:17:07,490 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-22 19:17:07,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 19:17:07,497 INFO L82 PathProgramCache]: Analyzing trace with hash 29857, now seen corresponding path program 1 times [2020-12-22 19:17:07,520 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 19:17:07,524 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [389544976] [2020-12-22 19:17:07,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 19:17:07,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:17:07,831 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 19:17:07,832 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [389544976] [2020-12-22 19:17:07,833 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 19:17:07,833 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 19:17:07,834 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [446752059] [2020-12-22 19:17:07,839 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 19:17:07,839 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 19:17:07,858 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 19:17:07,859 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 19:17:07,861 INFO L87 Difference]: Start difference. First operand 58 states. Second operand 3 states. [2020-12-22 19:17:07,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 19:17:07,948 INFO L93 Difference]: Finished difference Result 53 states and 54 transitions. [2020-12-22 19:17:07,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 19:17:07,950 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2020-12-22 19:17:07,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 19:17:07,959 INFO L225 Difference]: With dead ends: 53 [2020-12-22 19:17:07,960 INFO L226 Difference]: Without dead ends: 51 [2020-12-22 19:17:07,962 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 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 19:17:07,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2020-12-22 19:17:07,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2020-12-22 19:17:07,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2020-12-22 19:17:07,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 52 transitions. [2020-12-22 19:17:08,000 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 52 transitions. Word has length 3 [2020-12-22 19:17:08,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 19:17:08,000 INFO L481 AbstractCegarLoop]: Abstraction has 51 states and 52 transitions. [2020-12-22 19:17:08,001 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 19:17:08,001 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 52 transitions. [2020-12-22 19:17:08,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-12-22 19:17:08,001 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 19:17:08,001 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1] [2020-12-22 19:17:08,002 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-22 19:17:08,002 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-22 19:17:08,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 19:17:08,003 INFO L82 PathProgramCache]: Analyzing trace with hash 29858, now seen corresponding path program 1 times [2020-12-22 19:17:08,003 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 19:17:08,004 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [508456109] [2020-12-22 19:17:08,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 19:17:08,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:17:08,075 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 19:17:08,075 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [508456109] [2020-12-22 19:17:08,076 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 19:17:08,076 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 19:17:08,076 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [602156346] [2020-12-22 19:17:08,078 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 19:17:08,078 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 19:17:08,079 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 19:17:08,079 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 19:17:08,080 INFO L87 Difference]: Start difference. First operand 51 states and 52 transitions. Second operand 3 states. [2020-12-22 19:17:08,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 19:17:08,137 INFO L93 Difference]: Finished difference Result 46 states and 47 transitions. [2020-12-22 19:17:08,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 19:17:08,138 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2020-12-22 19:17:08,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 19:17:08,139 INFO L225 Difference]: With dead ends: 46 [2020-12-22 19:17:08,139 INFO L226 Difference]: Without dead ends: 46 [2020-12-22 19:17:08,140 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 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 19:17:08,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2020-12-22 19:17:08,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2020-12-22 19:17:08,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2020-12-22 19:17:08,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 47 transitions. [2020-12-22 19:17:08,147 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 47 transitions. Word has length 3 [2020-12-22 19:17:08,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 19:17:08,147 INFO L481 AbstractCegarLoop]: Abstraction has 46 states and 47 transitions. [2020-12-22 19:17:08,147 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 19:17:08,148 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 47 transitions. [2020-12-22 19:17:08,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-12-22 19:17:08,148 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 19:17:08,148 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-12-22 19:17:08,149 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-22 19:17:08,149 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-22 19:17:08,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 19:17:08,150 INFO L82 PathProgramCache]: Analyzing trace with hash 925543, now seen corresponding path program 1 times [2020-12-22 19:17:08,150 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 19:17:08,150 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2103333290] [2020-12-22 19:17:08,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 19:17:08,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:17:08,219 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 19:17:08,219 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2103333290] [2020-12-22 19:17:08,220 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 19:17:08,222 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 19:17:08,222 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [367766016] [2020-12-22 19:17:08,223 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 19:17:08,223 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 19:17:08,224 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 19:17:08,224 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 19:17:08,225 INFO L87 Difference]: Start difference. First operand 46 states and 47 transitions. Second operand 3 states. [2020-12-22 19:17:08,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 19:17:08,307 INFO L93 Difference]: Finished difference Result 44 states and 45 transitions. [2020-12-22 19:17:08,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 19:17:08,308 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2020-12-22 19:17:08,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 19:17:08,311 INFO L225 Difference]: With dead ends: 44 [2020-12-22 19:17:08,311 INFO L226 Difference]: Without dead ends: 44 [2020-12-22 19:17:08,312 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 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 19:17:08,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2020-12-22 19:17:08,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2020-12-22 19:17:08,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2020-12-22 19:17:08,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 45 transitions. [2020-12-22 19:17:08,323 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 45 transitions. Word has length 4 [2020-12-22 19:17:08,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 19:17:08,324 INFO L481 AbstractCegarLoop]: Abstraction has 44 states and 45 transitions. [2020-12-22 19:17:08,324 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 19:17:08,326 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 45 transitions. [2020-12-22 19:17:08,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-12-22 19:17:08,327 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 19:17:08,327 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-12-22 19:17:08,327 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-22 19:17:08,327 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-22 19:17:08,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 19:17:08,330 INFO L82 PathProgramCache]: Analyzing trace with hash 925544, now seen corresponding path program 1 times [2020-12-22 19:17:08,330 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 19:17:08,330 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1230223545] [2020-12-22 19:17:08,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 19:17:08,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:17:08,405 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 19:17:08,406 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1230223545] [2020-12-22 19:17:08,406 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 19:17:08,406 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 19:17:08,407 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [442528089] [2020-12-22 19:17:08,407 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 19:17:08,407 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 19:17:08,408 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 19:17:08,409 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 19:17:08,409 INFO L87 Difference]: Start difference. First operand 44 states and 45 transitions. Second operand 3 states. [2020-12-22 19:17:08,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 19:17:08,451 INFO L93 Difference]: Finished difference Result 42 states and 43 transitions. [2020-12-22 19:17:08,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 19:17:08,452 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2020-12-22 19:17:08,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 19:17:08,453 INFO L225 Difference]: With dead ends: 42 [2020-12-22 19:17:08,453 INFO L226 Difference]: Without dead ends: 42 [2020-12-22 19:17:08,454 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 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 19:17:08,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2020-12-22 19:17:08,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2020-12-22 19:17:08,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2020-12-22 19:17:08,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 43 transitions. [2020-12-22 19:17:08,459 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 43 transitions. Word has length 4 [2020-12-22 19:17:08,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 19:17:08,460 INFO L481 AbstractCegarLoop]: Abstraction has 42 states and 43 transitions. [2020-12-22 19:17:08,460 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 19:17:08,460 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 43 transitions. [2020-12-22 19:17:08,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-12-22 19:17:08,461 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 19:17:08,461 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-12-22 19:17:08,461 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-22 19:17:08,461 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-22 19:17:08,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 19:17:08,462 INFO L82 PathProgramCache]: Analyzing trace with hash 28691812, now seen corresponding path program 1 times [2020-12-22 19:17:08,462 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 19:17:08,463 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1361646874] [2020-12-22 19:17:08,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 19:17:08,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:17:08,531 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 19:17:08,532 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1361646874] [2020-12-22 19:17:08,532 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 19:17:08,532 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 19:17:08,532 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1543613439] [2020-12-22 19:17:08,533 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 19:17:08,533 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 19:17:08,537 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 19:17:08,537 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 19:17:08,538 INFO L87 Difference]: Start difference. First operand 42 states and 43 transitions. Second operand 3 states. [2020-12-22 19:17:08,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 19:17:08,611 INFO L93 Difference]: Finished difference Result 38 states and 39 transitions. [2020-12-22 19:17:08,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 19:17:08,612 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2020-12-22 19:17:08,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 19:17:08,613 INFO L225 Difference]: With dead ends: 38 [2020-12-22 19:17:08,615 INFO L226 Difference]: Without dead ends: 38 [2020-12-22 19:17:08,615 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 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 19:17:08,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2020-12-22 19:17:08,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2020-12-22 19:17:08,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2020-12-22 19:17:08,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 39 transitions. [2020-12-22 19:17:08,623 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 39 transitions. Word has length 5 [2020-12-22 19:17:08,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 19:17:08,624 INFO L481 AbstractCegarLoop]: Abstraction has 38 states and 39 transitions. [2020-12-22 19:17:08,624 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 19:17:08,624 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 39 transitions. [2020-12-22 19:17:08,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-12-22 19:17:08,624 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 19:17:08,625 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-12-22 19:17:08,625 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-22 19:17:08,629 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-22 19:17:08,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 19:17:08,630 INFO L82 PathProgramCache]: Analyzing trace with hash 28691813, now seen corresponding path program 1 times [2020-12-22 19:17:08,630 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 19:17:08,631 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [686665668] [2020-12-22 19:17:08,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 19:17:08,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:17:08,701 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 19:17:08,702 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [686665668] [2020-12-22 19:17:08,702 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 19:17:08,702 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 19:17:08,703 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1892141321] [2020-12-22 19:17:08,703 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 19:17:08,703 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 19:17:08,704 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 19:17:08,704 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 19:17:08,705 INFO L87 Difference]: Start difference. First operand 38 states and 39 transitions. Second operand 3 states. [2020-12-22 19:17:08,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 19:17:08,751 INFO L93 Difference]: Finished difference Result 34 states and 35 transitions. [2020-12-22 19:17:08,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 19:17:08,753 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2020-12-22 19:17:08,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 19:17:08,755 INFO L225 Difference]: With dead ends: 34 [2020-12-22 19:17:08,756 INFO L226 Difference]: Without dead ends: 34 [2020-12-22 19:17:08,756 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 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 19:17:08,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2020-12-22 19:17:08,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2020-12-22 19:17:08,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2020-12-22 19:17:08,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 35 transitions. [2020-12-22 19:17:08,770 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 35 transitions. Word has length 5 [2020-12-22 19:17:08,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 19:17:08,770 INFO L481 AbstractCegarLoop]: Abstraction has 34 states and 35 transitions. [2020-12-22 19:17:08,771 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 19:17:08,771 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 35 transitions. [2020-12-22 19:17:08,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-12-22 19:17:08,773 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 19:17:08,774 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-12-22 19:17:08,774 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-22 19:17:08,774 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-22 19:17:08,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 19:17:08,775 INFO L82 PathProgramCache]: Analyzing trace with hash 889446154, now seen corresponding path program 1 times [2020-12-22 19:17:08,776 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 19:17:08,776 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1654236430] [2020-12-22 19:17:08,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 19:17:08,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:17:08,836 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 19:17:08,838 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1654236430] [2020-12-22 19:17:08,838 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 19:17:08,838 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 19:17:08,839 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [756343403] [2020-12-22 19:17:08,841 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 19:17:08,841 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 19:17:08,842 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 19:17:08,842 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 19:17:08,842 INFO L87 Difference]: Start difference. First operand 34 states and 35 transitions. Second operand 3 states. [2020-12-22 19:17:08,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 19:17:08,879 INFO L93 Difference]: Finished difference Result 30 states and 31 transitions. [2020-12-22 19:17:08,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 19:17:08,880 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2020-12-22 19:17:08,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 19:17:08,880 INFO L225 Difference]: With dead ends: 30 [2020-12-22 19:17:08,880 INFO L226 Difference]: Without dead ends: 30 [2020-12-22 19:17:08,881 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 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 19:17:08,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-12-22 19:17:08,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2020-12-22 19:17:08,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-12-22 19:17:08,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 31 transitions. [2020-12-22 19:17:08,884 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 31 transitions. Word has length 6 [2020-12-22 19:17:08,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 19:17:08,885 INFO L481 AbstractCegarLoop]: Abstraction has 30 states and 31 transitions. [2020-12-22 19:17:08,885 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 19:17:08,885 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 31 transitions. [2020-12-22 19:17:08,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-12-22 19:17:08,886 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 19:17:08,886 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-12-22 19:17:08,886 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-12-22 19:17:08,886 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-22 19:17:08,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 19:17:08,887 INFO L82 PathProgramCache]: Analyzing trace with hash 889446155, now seen corresponding path program 1 times [2020-12-22 19:17:08,887 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 19:17:08,888 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [219791688] [2020-12-22 19:17:08,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 19:17:08,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:17:08,935 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 19:17:08,936 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [219791688] [2020-12-22 19:17:08,936 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 19:17:08,936 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 19:17:08,936 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [517248270] [2020-12-22 19:17:08,937 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 19:17:08,937 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 19:17:08,938 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 19:17:08,938 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 19:17:08,938 INFO L87 Difference]: Start difference. First operand 30 states and 31 transitions. Second operand 3 states. [2020-12-22 19:17:08,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 19:17:08,971 INFO L93 Difference]: Finished difference Result 26 states and 27 transitions. [2020-12-22 19:17:08,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 19:17:08,972 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2020-12-22 19:17:08,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 19:17:08,974 INFO L225 Difference]: With dead ends: 26 [2020-12-22 19:17:08,974 INFO L226 Difference]: Without dead ends: 26 [2020-12-22 19:17:08,974 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 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 19:17:08,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2020-12-22 19:17:08,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2020-12-22 19:17:08,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2020-12-22 19:17:08,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 27 transitions. [2020-12-22 19:17:08,978 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 27 transitions. Word has length 6 [2020-12-22 19:17:08,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 19:17:08,978 INFO L481 AbstractCegarLoop]: Abstraction has 26 states and 27 transitions. [2020-12-22 19:17:08,978 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 19:17:08,978 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 27 transitions. [2020-12-22 19:17:08,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-12-22 19:17:08,979 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 19:17:08,979 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 19:17:08,979 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-12-22 19:17:08,980 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-22 19:17:08,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 19:17:08,981 INFO L82 PathProgramCache]: Analyzing trace with hash -1831182508, now seen corresponding path program 1 times [2020-12-22 19:17:08,982 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 19:17:08,982 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [368516932] [2020-12-22 19:17:08,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 19:17:09,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:17:09,121 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 19:17:09,121 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [368516932] [2020-12-22 19:17:09,122 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 19:17:09,122 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 19:17:09,122 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [823902050] [2020-12-22 19:17:09,122 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 19:17:09,123 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 19:17:09,123 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 19:17:09,123 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 19:17:09,124 INFO L87 Difference]: Start difference. First operand 26 states and 27 transitions. Second operand 4 states. [2020-12-22 19:17:09,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 19:17:09,172 INFO L93 Difference]: Finished difference Result 25 states and 26 transitions. [2020-12-22 19:17:09,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-22 19:17:09,173 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-12-22 19:17:09,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 19:17:09,173 INFO L225 Difference]: With dead ends: 25 [2020-12-22 19:17:09,174 INFO L226 Difference]: Without dead ends: 0 [2020-12-22 19:17:09,174 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 19:17:09,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-22 19:17:09,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-22 19:17:09,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-22 19:17:09,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-22 19:17:09,175 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2020-12-22 19:17:09,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 19:17:09,175 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-22 19:17:09,175 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 19:17:09,175 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-22 19:17:09,176 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-22 19:17:09,176 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-12-22 19:17:09,182 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.12 07:17:09 BoogieIcfgContainer [2020-12-22 19:17:09,183 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-22 19:17:09,183 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-22 19:17:09,184 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-22 19:17:09,184 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-22 19:17:09,184 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 07:17:07" (3/4) ... [2020-12-22 19:17:09,188 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-22 19:17:09,201 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2020-12-22 19:17:09,201 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-12-22 19:17:09,202 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-12-22 19:17:09,255 INFO L141 WitnessManager]: Wrote witness to /storage/repos/svcomp/c/memory-alloca/c.03-alloca-2.i-witness.graphml [2020-12-22 19:17:09,255 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-22 19:17:09,257 INFO L168 Benchmark]: Toolchain (without parser) took 3110.56 ms. Allocated memory was 159.4 MB in the beginning and 191.9 MB in the end (delta: 32.5 MB). Free memory was 133.0 MB in the beginning and 119.2 MB in the end (delta: 13.8 MB). Peak memory consumption was 47.3 MB. Max. memory is 8.0 GB. [2020-12-22 19:17:09,257 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 159.4 MB. Free memory is still 132.5 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-12-22 19:17:09,258 INFO L168 Benchmark]: CACSL2BoogieTranslator took 541.59 ms. Allocated memory is still 159.4 MB. Free memory was 132.7 MB in the beginning and 112.7 MB in the end (delta: 20.0 MB). Peak memory consumption was 19.9 MB. Max. memory is 8.0 GB. [2020-12-22 19:17:09,258 INFO L168 Benchmark]: Boogie Procedure Inliner took 50.05 ms. Allocated memory is still 159.4 MB. Free memory was 112.5 MB in the beginning and 110.9 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-12-22 19:17:09,259 INFO L168 Benchmark]: Boogie Preprocessor took 34.36 ms. Allocated memory is still 159.4 MB. Free memory was 110.7 MB in the beginning and 109.7 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-12-22 19:17:09,260 INFO L168 Benchmark]: RCFGBuilder took 612.99 ms. Allocated memory is still 159.4 MB. Free memory was 109.5 MB in the beginning and 121.7 MB in the end (delta: -12.3 MB). Peak memory consumption was 7.0 MB. Max. memory is 8.0 GB. [2020-12-22 19:17:09,260 INFO L168 Benchmark]: TraceAbstraction took 1790.23 ms. Allocated memory was 159.4 MB in the beginning and 191.9 MB in the end (delta: 32.5 MB). Free memory was 121.2 MB in the beginning and 122.3 MB in the end (delta: -1.1 MB). Peak memory consumption was 31.9 MB. Max. memory is 8.0 GB. [2020-12-22 19:17:09,261 INFO L168 Benchmark]: Witness Printer took 71.47 ms. Allocated memory is still 191.9 MB. Free memory was 122.3 MB in the beginning and 119.2 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2020-12-22 19:17:09,264 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 159.4 MB. Free memory is still 132.5 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 541.59 ms. Allocated memory is still 159.4 MB. Free memory was 132.7 MB in the beginning and 112.7 MB in the end (delta: 20.0 MB). Peak memory consumption was 19.9 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 50.05 ms. Allocated memory is still 159.4 MB. Free memory was 112.5 MB in the beginning and 110.9 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 34.36 ms. Allocated memory is still 159.4 MB. Free memory was 110.7 MB in the beginning and 109.7 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 612.99 ms. Allocated memory is still 159.4 MB. Free memory was 109.5 MB in the beginning and 121.7 MB in the end (delta: -12.3 MB). Peak memory consumption was 7.0 MB. Max. memory is 8.0 GB. * TraceAbstraction took 1790.23 ms. Allocated memory was 159.4 MB in the beginning and 191.9 MB in the end (delta: 32.5 MB). Free memory was 121.2 MB in the beginning and 122.3 MB in the end (delta: -1.1 MB). Peak memory consumption was 31.9 MB. Max. memory is 8.0 GB. * Witness Printer took 71.47 ms. Allocated memory is still 191.9 MB. Free memory was 122.3 MB in the beginning and 119.2 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 518]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 528]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 526]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 518]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 528]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 526]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 520]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 532]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 519]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 519]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 526]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 521]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 530]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 521]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 520]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 528]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 522]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 528]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 522]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 530]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 523]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 522]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 522]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 523]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 523]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 523]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 524]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 524]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 526]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 524]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 524]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - AllSpecificationsHoldResult: All specifications hold 31 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 58 locations, 31 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.7s, OverallIterations: 9, TraceHistogramMax: 1, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 148 SDtfs, 293 SDslu, 17 SDs, 0 SdLazy, 231 SolverSat, 22 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 19 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=58occurred 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, 9 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 49 NumberOfCodeBlocks, 49 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 40 ConstructedInterpolants, 0 QuantifiedInterpolants, 4992 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 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...