/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/locks/test_locks_6.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-bitabs-178dd20 [2021-01-07 05:46:46,271 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-01-07 05:46:46,275 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-01-07 05:46:46,315 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-01-07 05:46:46,316 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-01-07 05:46:46,318 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-01-07 05:46:46,320 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-01-07 05:46:46,323 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-01-07 05:46:46,325 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-01-07 05:46:46,327 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-01-07 05:46:46,329 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-01-07 05:46:46,331 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-01-07 05:46:46,331 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-01-07 05:46:46,333 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-01-07 05:46:46,351 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-01-07 05:46:46,355 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-01-07 05:46:46,357 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-01-07 05:46:46,362 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-01-07 05:46:46,366 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-01-07 05:46:46,376 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-01-07 05:46:46,379 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-01-07 05:46:46,383 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-01-07 05:46:46,390 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-01-07 05:46:46,392 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-01-07 05:46:46,398 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-01-07 05:46:46,426 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-01-07 05:46:46,431 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-01-07 05:46:46,433 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-01-07 05:46:46,434 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Default.epf [2021-01-07 05:46:46,493 INFO L113 SettingsManager]: Loading preferences was successful [2021-01-07 05:46:46,493 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-01-07 05:46:46,495 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-01-07 05:46:46,495 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-01-07 05:46:46,496 INFO L138 SettingsManager]: * Use SBE=true [2021-01-07 05:46:46,496 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-01-07 05:46:46,496 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-01-07 05:46:46,497 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-01-07 05:46:46,497 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-01-07 05:46:46,497 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-01-07 05:46:46,497 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-01-07 05:46:46,498 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-01-07 05:46:46,498 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-01-07 05:46:46,498 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-01-07 05:46:46,498 INFO L138 SettingsManager]: * Use constant arrays=true [2021-01-07 05:46:46,498 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-01-07 05:46:46,499 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-01-07 05:46:46,499 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-01-07 05:46:46,499 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-01-07 05:46:46,500 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-01-07 05:46:46,500 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-01-07 05:46:46,500 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-01-07 05:46:46,500 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-01-07 05:46:46,501 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-01-07 05:46:46,501 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-bitabs/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-01-07 05:46:46,934 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-01-07 05:46:46,968 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-01-07 05:46:46,972 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-01-07 05:46:46,973 INFO L271 PluginConnector]: Initializing CDTParser... [2021-01-07 05:46:46,975 INFO L275 PluginConnector]: CDTParser initialized [2021-01-07 05:46:46,976 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/locks/test_locks_6.c [2021-01-07 05:46:47,074 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/4c990a578/ef75f79ee08f4deb957acc1e4519449f/FLAG7b9b0af4c [2021-01-07 05:46:47,758 INFO L306 CDTParser]: Found 1 translation units. [2021-01-07 05:46:47,759 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/locks/test_locks_6.c [2021-01-07 05:46:47,769 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/4c990a578/ef75f79ee08f4deb957acc1e4519449f/FLAG7b9b0af4c [2021-01-07 05:46:48,139 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/4c990a578/ef75f79ee08f4deb957acc1e4519449f [2021-01-07 05:46:48,143 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-01-07 05:46:48,147 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-01-07 05:46:48,149 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-01-07 05:46:48,150 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-01-07 05:46:48,154 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-01-07 05:46:48,156 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.01 05:46:48" (1/1) ... [2021-01-07 05:46:48,158 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@75bfd11f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 05:46:48, skipping insertion in model container [2021-01-07 05:46:48,158 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.01 05:46:48" (1/1) ... [2021-01-07 05:46:48,167 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-01-07 05:46:48,201 INFO L178 MainTranslator]: Built tables and reachable declarations left hand side expression in assignment: lhs: VariableLHS[~cond~0,] left hand side expression in assignment: lhs: VariableLHS[~lk1~0,] left hand side expression in assignment: lhs: VariableLHS[~lk2~0,] left hand side expression in assignment: lhs: VariableLHS[~lk3~0,] left hand side expression in assignment: lhs: VariableLHS[~lk4~0,] left hand side expression in assignment: lhs: VariableLHS[~lk5~0,] left hand side expression in assignment: lhs: VariableLHS[~lk6~0,] left hand side expression in assignment: lhs: VariableLHS[~lk1~0,] left hand side expression in assignment: lhs: VariableLHS[~lk2~0,] left hand side expression in assignment: lhs: VariableLHS[~lk3~0,] left hand side expression in assignment: lhs: VariableLHS[~lk4~0,] left hand side expression in assignment: lhs: VariableLHS[~lk5~0,] left hand side expression in assignment: lhs: VariableLHS[~lk6~0,] left hand side expression in assignment: lhs: VariableLHS[~lk1~0,] left hand side expression in assignment: lhs: VariableLHS[~lk2~0,] left hand side expression in assignment: lhs: VariableLHS[~lk3~0,] left hand side expression in assignment: lhs: VariableLHS[~lk4~0,] left hand side expression in assignment: lhs: VariableLHS[~lk5~0,] left hand side expression in assignment: lhs: VariableLHS[~lk6~0,] [2021-01-07 05:46:48,437 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/locks/test_locks_6.c[2544,2557] [2021-01-07 05:46:48,442 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-07 05:46:48,457 INFO L203 MainTranslator]: Completed pre-run left hand side expression in assignment: lhs: VariableLHS[~cond~0,] left hand side expression in assignment: lhs: VariableLHS[~lk1~0,] left hand side expression in assignment: lhs: VariableLHS[~lk2~0,] left hand side expression in assignment: lhs: VariableLHS[~lk3~0,] left hand side expression in assignment: lhs: VariableLHS[~lk4~0,] left hand side expression in assignment: lhs: VariableLHS[~lk5~0,] left hand side expression in assignment: lhs: VariableLHS[~lk6~0,] left hand side expression in assignment: lhs: VariableLHS[~lk1~0,] left hand side expression in assignment: lhs: VariableLHS[~lk2~0,] left hand side expression in assignment: lhs: VariableLHS[~lk3~0,] left hand side expression in assignment: lhs: VariableLHS[~lk4~0,] left hand side expression in assignment: lhs: VariableLHS[~lk5~0,] left hand side expression in assignment: lhs: VariableLHS[~lk6~0,] left hand side expression in assignment: lhs: VariableLHS[~lk1~0,] left hand side expression in assignment: lhs: VariableLHS[~lk2~0,] left hand side expression in assignment: lhs: VariableLHS[~lk3~0,] left hand side expression in assignment: lhs: VariableLHS[~lk4~0,] left hand side expression in assignment: lhs: VariableLHS[~lk5~0,] left hand side expression in assignment: lhs: VariableLHS[~lk6~0,] [2021-01-07 05:46:48,486 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/locks/test_locks_6.c[2544,2557] [2021-01-07 05:46:48,487 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-07 05:46:48,508 INFO L208 MainTranslator]: Completed translation [2021-01-07 05:46:48,508 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 05:46:48 WrapperNode [2021-01-07 05:46:48,508 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-01-07 05:46:48,510 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-01-07 05:46:48,510 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-01-07 05:46:48,510 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-01-07 05:46:48,521 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 05:46:48" (1/1) ... [2021-01-07 05:46:48,531 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 05:46:48" (1/1) ... [2021-01-07 05:46:48,559 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-01-07 05:46:48,560 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-01-07 05:46:48,561 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-01-07 05:46:48,561 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-01-07 05:46:48,572 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 05:46:48" (1/1) ... [2021-01-07 05:46:48,573 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 05:46:48" (1/1) ... [2021-01-07 05:46:48,575 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 05:46:48" (1/1) ... [2021-01-07 05:46:48,576 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 05:46:48" (1/1) ... [2021-01-07 05:46:48,581 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 05:46:48" (1/1) ... [2021-01-07 05:46:48,587 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 05:46:48" (1/1) ... [2021-01-07 05:46:48,589 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 05:46:48" (1/1) ... [2021-01-07 05:46:48,592 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-01-07 05:46:48,593 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-01-07 05:46:48,594 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-01-07 05:46:48,594 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-01-07 05:46:48,595 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 05:46:48" (1/1) ... No working directory specified, using /storage/repos/ultimate-bitabs/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 [2021-01-07 05:46:48,721 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-01-07 05:46:48,722 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-01-07 05:46:48,723 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-01-07 05:46:48,724 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-01-07 05:46:49,256 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-01-07 05:46:49,257 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-01-07 05:46:49,259 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.01 05:46:49 BoogieIcfgContainer [2021-01-07 05:46:49,260 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-01-07 05:46:49,262 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-01-07 05:46:49,263 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-01-07 05:46:49,268 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-01-07 05:46:49,268 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.01 05:46:48" (1/3) ... [2021-01-07 05:46:49,270 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41323873 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.01 05:46:49, skipping insertion in model container [2021-01-07 05:46:49,270 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 05:46:48" (2/3) ... [2021-01-07 05:46:49,271 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41323873 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.01 05:46:49, skipping insertion in model container [2021-01-07 05:46:49,271 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.01 05:46:49" (3/3) ... [2021-01-07 05:46:49,273 INFO L111 eAbstractionObserver]: Analyzing ICFG test_locks_6.c [2021-01-07 05:46:49,283 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-01-07 05:46:49,291 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2021-01-07 05:46:49,334 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-01-07 05:46:49,370 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-01-07 05:46:49,371 INFO L378 AbstractCegarLoop]: Hoare is false [2021-01-07 05:46:49,371 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-01-07 05:46:49,371 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-01-07 05:46:49,371 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-01-07 05:46:49,371 INFO L382 AbstractCegarLoop]: Difference is false [2021-01-07 05:46:49,372 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-01-07 05:46:49,372 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-01-07 05:46:49,394 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states. [2021-01-07 05:46:49,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-01-07 05:46:49,406 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 05:46:49,407 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-01-07 05:46:49,408 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK]=== [2021-01-07 05:46:49,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 05:46:49,419 INFO L82 PathProgramCache]: Analyzing trace with hash 28807962, now seen corresponding path program 1 times [2021-01-07 05:46:49,438 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 05:46:49,438 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1271292876] [2021-01-07 05:46:49,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 05:46:49,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 05:46:49,655 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-07 05:46:49,657 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1271292876] [2021-01-07 05:46:49,658 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-07 05:46:49,658 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-01-07 05:46:49,659 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1446030945] [2021-01-07 05:46:49,667 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-01-07 05:46:49,667 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 05:46:49,689 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-01-07 05:46:49,690 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-01-07 05:46:49,694 INFO L87 Difference]: Start difference. First operand 29 states. Second operand 2 states. [2021-01-07 05:46:49,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 05:46:49,715 INFO L93 Difference]: Finished difference Result 29 states and 46 transitions. [2021-01-07 05:46:49,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-01-07 05:46:49,718 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 5 [2021-01-07 05:46:49,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 05:46:49,732 INFO L225 Difference]: With dead ends: 29 [2021-01-07 05:46:49,732 INFO L226 Difference]: Without dead ends: 27 [2021-01-07 05:46:49,734 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 [2021-01-07 05:46:49,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2021-01-07 05:46:49,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2021-01-07 05:46:49,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2021-01-07 05:46:49,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 44 transitions. [2021-01-07 05:46:49,782 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 44 transitions. Word has length 5 [2021-01-07 05:46:49,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 05:46:49,782 INFO L481 AbstractCegarLoop]: Abstraction has 27 states and 44 transitions. [2021-01-07 05:46:49,782 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2021-01-07 05:46:49,783 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 44 transitions. [2021-01-07 05:46:49,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-01-07 05:46:49,783 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 05:46:49,783 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-01-07 05:46:49,784 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-01-07 05:46:49,784 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK]=== [2021-01-07 05:46:49,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 05:46:49,786 INFO L82 PathProgramCache]: Analyzing trace with hash 889695787, now seen corresponding path program 1 times [2021-01-07 05:46:49,786 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 05:46:49,786 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1129375433] [2021-01-07 05:46:49,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 05:46:49,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 05:46:49,922 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-07 05:46:49,923 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1129375433] [2021-01-07 05:46:49,925 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-07 05:46:49,925 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-01-07 05:46:49,926 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [844423984] [2021-01-07 05:46:49,930 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-07 05:46:49,931 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 05:46:49,934 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-07 05:46:49,934 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-07 05:46:49,935 INFO L87 Difference]: Start difference. First operand 27 states and 44 transitions. Second operand 3 states. [2021-01-07 05:46:49,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 05:46:49,964 INFO L93 Difference]: Finished difference Result 26 states and 43 transitions. [2021-01-07 05:46:49,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-07 05:46:49,967 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2021-01-07 05:46:49,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 05:46:49,968 INFO L225 Difference]: With dead ends: 26 [2021-01-07 05:46:49,968 INFO L226 Difference]: Without dead ends: 24 [2021-01-07 05:46:49,970 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 [2021-01-07 05:46:49,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2021-01-07 05:46:49,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2021-01-07 05:46:49,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2021-01-07 05:46:49,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 41 transitions. [2021-01-07 05:46:49,976 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 41 transitions. Word has length 6 [2021-01-07 05:46:49,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 05:46:49,976 INFO L481 AbstractCegarLoop]: Abstraction has 24 states and 41 transitions. [2021-01-07 05:46:49,976 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-07 05:46:49,977 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 41 transitions. [2021-01-07 05:46:49,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-01-07 05:46:49,977 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 05:46:49,978 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-07 05:46:49,978 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-01-07 05:46:49,978 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK]=== [2021-01-07 05:46:49,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 05:46:49,979 INFO L82 PathProgramCache]: Analyzing trace with hash -721193823, now seen corresponding path program 1 times [2021-01-07 05:46:49,980 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 05:46:49,980 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [313764866] [2021-01-07 05:46:49,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 05:46:50,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 05:46:50,039 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-07 05:46:50,040 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [313764866] [2021-01-07 05:46:50,040 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-07 05:46:50,040 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-07 05:46:50,041 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1624084833] [2021-01-07 05:46:50,041 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-07 05:46:50,042 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 05:46:50,043 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-07 05:46:50,044 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-07 05:46:50,044 INFO L87 Difference]: Start difference. First operand 24 states and 41 transitions. Second operand 3 states. [2021-01-07 05:46:50,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 05:46:50,090 INFO L93 Difference]: Finished difference Result 45 states and 77 transitions. [2021-01-07 05:46:50,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-07 05:46:50,092 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2021-01-07 05:46:50,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 05:46:50,095 INFO L225 Difference]: With dead ends: 45 [2021-01-07 05:46:50,096 INFO L226 Difference]: Without dead ends: 45 [2021-01-07 05:46:50,097 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 [2021-01-07 05:46:50,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2021-01-07 05:46:50,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 31. [2021-01-07 05:46:50,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2021-01-07 05:46:50,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 54 transitions. [2021-01-07 05:46:50,116 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 54 transitions. Word has length 13 [2021-01-07 05:46:50,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 05:46:50,117 INFO L481 AbstractCegarLoop]: Abstraction has 31 states and 54 transitions. [2021-01-07 05:46:50,117 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-07 05:46:50,117 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 54 transitions. [2021-01-07 05:46:50,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-01-07 05:46:50,120 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 05:46:50,120 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-07 05:46:50,120 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-01-07 05:46:50,121 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK]=== [2021-01-07 05:46:50,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 05:46:50,125 INFO L82 PathProgramCache]: Analyzing trace with hash -41135453, now seen corresponding path program 1 times [2021-01-07 05:46:50,126 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 05:46:50,126 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1287736895] [2021-01-07 05:46:50,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 05:46:50,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 05:46:50,203 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-07 05:46:50,203 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1287736895] [2021-01-07 05:46:50,203 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-07 05:46:50,204 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-07 05:46:50,204 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2031636087] [2021-01-07 05:46:50,204 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-07 05:46:50,205 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 05:46:50,206 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-07 05:46:50,206 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-07 05:46:50,206 INFO L87 Difference]: Start difference. First operand 31 states and 54 transitions. Second operand 3 states. [2021-01-07 05:46:50,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 05:46:50,230 INFO L93 Difference]: Finished difference Result 45 states and 75 transitions. [2021-01-07 05:46:50,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-07 05:46:50,231 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2021-01-07 05:46:50,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 05:46:50,233 INFO L225 Difference]: With dead ends: 45 [2021-01-07 05:46:50,233 INFO L226 Difference]: Without dead ends: 45 [2021-01-07 05:46:50,233 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 [2021-01-07 05:46:50,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2021-01-07 05:46:50,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 43. [2021-01-07 05:46:50,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2021-01-07 05:46:50,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 74 transitions. [2021-01-07 05:46:50,241 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 74 transitions. Word has length 13 [2021-01-07 05:46:50,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 05:46:50,241 INFO L481 AbstractCegarLoop]: Abstraction has 43 states and 74 transitions. [2021-01-07 05:46:50,242 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-07 05:46:50,242 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 74 transitions. [2021-01-07 05:46:50,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-01-07 05:46:50,243 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 05:46:50,243 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-07 05:46:50,243 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-01-07 05:46:50,243 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK]=== [2021-01-07 05:46:50,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 05:46:50,244 INFO L82 PathProgramCache]: Analyzing trace with hash -881957389, now seen corresponding path program 1 times [2021-01-07 05:46:50,244 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 05:46:50,245 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2050075269] [2021-01-07 05:46:50,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 05:46:50,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 05:46:50,328 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-07 05:46:50,329 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2050075269] [2021-01-07 05:46:50,329 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-07 05:46:50,329 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-07 05:46:50,330 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1986481683] [2021-01-07 05:46:50,330 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-07 05:46:50,330 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 05:46:50,333 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-07 05:46:50,334 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-07 05:46:50,334 INFO L87 Difference]: Start difference. First operand 43 states and 74 transitions. Second operand 3 states. [2021-01-07 05:46:50,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 05:46:50,374 INFO L93 Difference]: Finished difference Result 48 states and 77 transitions. [2021-01-07 05:46:50,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-07 05:46:50,377 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 14 [2021-01-07 05:46:50,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 05:46:50,381 INFO L225 Difference]: With dead ends: 48 [2021-01-07 05:46:50,381 INFO L226 Difference]: Without dead ends: 48 [2021-01-07 05:46:50,382 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 [2021-01-07 05:46:50,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2021-01-07 05:46:50,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 46. [2021-01-07 05:46:50,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2021-01-07 05:46:50,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 76 transitions. [2021-01-07 05:46:50,399 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 76 transitions. Word has length 14 [2021-01-07 05:46:50,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 05:46:50,400 INFO L481 AbstractCegarLoop]: Abstraction has 46 states and 76 transitions. [2021-01-07 05:46:50,400 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-07 05:46:50,401 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 76 transitions. [2021-01-07 05:46:50,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-01-07 05:46:50,402 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 05:46:50,402 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-07 05:46:50,402 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-01-07 05:46:50,402 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK]=== [2021-01-07 05:46:50,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 05:46:50,403 INFO L82 PathProgramCache]: Analyzing trace with hash -1274984399, now seen corresponding path program 1 times [2021-01-07 05:46:50,404 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 05:46:50,404 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [303210715] [2021-01-07 05:46:50,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 05:46:50,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 05:46:50,492 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-07 05:46:50,492 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [303210715] [2021-01-07 05:46:50,493 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-07 05:46:50,493 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-07 05:46:50,495 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1204571447] [2021-01-07 05:46:50,496 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-07 05:46:50,496 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 05:46:50,497 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-07 05:46:50,497 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-07 05:46:50,497 INFO L87 Difference]: Start difference. First operand 46 states and 76 transitions. Second operand 3 states. [2021-01-07 05:46:50,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 05:46:50,532 INFO L93 Difference]: Finished difference Result 83 states and 138 transitions. [2021-01-07 05:46:50,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-07 05:46:50,533 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 14 [2021-01-07 05:46:50,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 05:46:50,535 INFO L225 Difference]: With dead ends: 83 [2021-01-07 05:46:50,537 INFO L226 Difference]: Without dead ends: 83 [2021-01-07 05:46:50,537 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 [2021-01-07 05:46:50,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2021-01-07 05:46:50,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 61. [2021-01-07 05:46:50,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2021-01-07 05:46:50,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 101 transitions. [2021-01-07 05:46:50,555 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 101 transitions. Word has length 14 [2021-01-07 05:46:50,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 05:46:50,555 INFO L481 AbstractCegarLoop]: Abstraction has 61 states and 101 transitions. [2021-01-07 05:46:50,555 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-07 05:46:50,556 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 101 transitions. [2021-01-07 05:46:50,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-01-07 05:46:50,559 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 05:46:50,560 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-07 05:46:50,560 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-01-07 05:46:50,560 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK]=== [2021-01-07 05:46:50,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 05:46:50,563 INFO L82 PathProgramCache]: Analyzing trace with hash -594926029, now seen corresponding path program 1 times [2021-01-07 05:46:50,565 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 05:46:50,567 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1031118687] [2021-01-07 05:46:50,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 05:46:50,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 05:46:50,612 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-07 05:46:50,612 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1031118687] [2021-01-07 05:46:50,612 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-07 05:46:50,613 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-07 05:46:50,617 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [505591070] [2021-01-07 05:46:50,618 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-07 05:46:50,618 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 05:46:50,619 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-07 05:46:50,621 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-07 05:46:50,621 INFO L87 Difference]: Start difference. First operand 61 states and 101 transitions. Second operand 3 states. [2021-01-07 05:46:50,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 05:46:50,648 INFO L93 Difference]: Finished difference Result 85 states and 136 transitions. [2021-01-07 05:46:50,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-07 05:46:50,648 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 14 [2021-01-07 05:46:50,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 05:46:50,651 INFO L225 Difference]: With dead ends: 85 [2021-01-07 05:46:50,651 INFO L226 Difference]: Without dead ends: 85 [2021-01-07 05:46:50,653 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 [2021-01-07 05:46:50,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2021-01-07 05:46:50,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 83. [2021-01-07 05:46:50,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 83 states. [2021-01-07 05:46:50,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 135 transitions. [2021-01-07 05:46:50,671 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 135 transitions. Word has length 14 [2021-01-07 05:46:50,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 05:46:50,671 INFO L481 AbstractCegarLoop]: Abstraction has 83 states and 135 transitions. [2021-01-07 05:46:50,671 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-07 05:46:50,672 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 135 transitions. [2021-01-07 05:46:50,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-01-07 05:46:50,676 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 05:46:50,676 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-07 05:46:50,677 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-01-07 05:46:50,677 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK]=== [2021-01-07 05:46:50,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 05:46:50,678 INFO L82 PathProgramCache]: Analyzing trace with hash -869595720, now seen corresponding path program 1 times [2021-01-07 05:46:50,679 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 05:46:50,679 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [409890802] [2021-01-07 05:46:50,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 05:46:50,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 05:46:50,727 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-07 05:46:50,728 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [409890802] [2021-01-07 05:46:50,728 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-07 05:46:50,728 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-07 05:46:50,728 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1935281236] [2021-01-07 05:46:50,729 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-07 05:46:50,729 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 05:46:50,730 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-07 05:46:50,730 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-07 05:46:50,730 INFO L87 Difference]: Start difference. First operand 83 states and 135 transitions. Second operand 3 states. [2021-01-07 05:46:50,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 05:46:50,743 INFO L93 Difference]: Finished difference Result 87 states and 136 transitions. [2021-01-07 05:46:50,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-07 05:46:50,744 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 15 [2021-01-07 05:46:50,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 05:46:50,745 INFO L225 Difference]: With dead ends: 87 [2021-01-07 05:46:50,745 INFO L226 Difference]: Without dead ends: 87 [2021-01-07 05:46:50,746 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 [2021-01-07 05:46:50,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2021-01-07 05:46:50,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 85. [2021-01-07 05:46:50,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2021-01-07 05:46:50,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 135 transitions. [2021-01-07 05:46:50,752 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 135 transitions. Word has length 15 [2021-01-07 05:46:50,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 05:46:50,752 INFO L481 AbstractCegarLoop]: Abstraction has 85 states and 135 transitions. [2021-01-07 05:46:50,753 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-07 05:46:50,753 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 135 transitions. [2021-01-07 05:46:50,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-01-07 05:46:50,754 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 05:46:50,754 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-07 05:46:50,754 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-01-07 05:46:50,755 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK]=== [2021-01-07 05:46:50,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 05:46:50,755 INFO L82 PathProgramCache]: Analyzing trace with hash -1262622730, now seen corresponding path program 1 times [2021-01-07 05:46:50,756 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 05:46:50,756 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1881991089] [2021-01-07 05:46:50,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 05:46:50,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 05:46:50,781 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-07 05:46:50,781 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1881991089] [2021-01-07 05:46:50,782 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-07 05:46:50,782 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-07 05:46:50,782 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1817570888] [2021-01-07 05:46:50,783 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-07 05:46:50,783 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 05:46:50,783 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-07 05:46:50,784 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-07 05:46:50,784 INFO L87 Difference]: Start difference. First operand 85 states and 135 transitions. Second operand 3 states. [2021-01-07 05:46:50,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 05:46:50,802 INFO L93 Difference]: Finished difference Result 159 states and 244 transitions. [2021-01-07 05:46:50,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-07 05:46:50,803 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 15 [2021-01-07 05:46:50,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 05:46:50,805 INFO L225 Difference]: With dead ends: 159 [2021-01-07 05:46:50,805 INFO L226 Difference]: Without dead ends: 159 [2021-01-07 05:46:50,806 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 [2021-01-07 05:46:50,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2021-01-07 05:46:50,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 157. [2021-01-07 05:46:50,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 157 states. [2021-01-07 05:46:50,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 243 transitions. [2021-01-07 05:46:50,824 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 243 transitions. Word has length 15 [2021-01-07 05:46:50,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 05:46:50,824 INFO L481 AbstractCegarLoop]: Abstraction has 157 states and 243 transitions. [2021-01-07 05:46:50,824 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-07 05:46:50,825 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 243 transitions. [2021-01-07 05:46:50,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-01-07 05:46:50,826 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 05:46:50,829 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-07 05:46:50,829 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-01-07 05:46:50,830 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK]=== [2021-01-07 05:46:50,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 05:46:50,830 INFO L82 PathProgramCache]: Analyzing trace with hash -1942681100, now seen corresponding path program 1 times [2021-01-07 05:46:50,831 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 05:46:50,831 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [649115202] [2021-01-07 05:46:50,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 05:46:50,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 05:46:50,883 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-07 05:46:50,884 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [649115202] [2021-01-07 05:46:50,885 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-07 05:46:50,885 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-07 05:46:50,885 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [589769632] [2021-01-07 05:46:50,886 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-07 05:46:50,886 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 05:46:50,886 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-07 05:46:50,887 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-07 05:46:50,887 INFO L87 Difference]: Start difference. First operand 157 states and 243 transitions. Second operand 3 states. [2021-01-07 05:46:50,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 05:46:50,906 INFO L93 Difference]: Finished difference Result 191 states and 296 transitions. [2021-01-07 05:46:50,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-07 05:46:50,906 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 15 [2021-01-07 05:46:50,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 05:46:50,910 INFO L225 Difference]: With dead ends: 191 [2021-01-07 05:46:50,910 INFO L226 Difference]: Without dead ends: 191 [2021-01-07 05:46:50,911 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 [2021-01-07 05:46:50,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191 states. [2021-01-07 05:46:50,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191 to 157. [2021-01-07 05:46:50,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 157 states. [2021-01-07 05:46:50,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 239 transitions. [2021-01-07 05:46:50,927 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 239 transitions. Word has length 15 [2021-01-07 05:46:50,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 05:46:50,927 INFO L481 AbstractCegarLoop]: Abstraction has 157 states and 239 transitions. [2021-01-07 05:46:50,927 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-07 05:46:50,927 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 239 transitions. [2021-01-07 05:46:50,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-01-07 05:46:50,934 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 05:46:50,934 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-07 05:46:50,934 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-01-07 05:46:50,935 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK]=== [2021-01-07 05:46:50,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 05:46:50,935 INFO L82 PathProgramCache]: Analyzing trace with hash -486383640, now seen corresponding path program 1 times [2021-01-07 05:46:50,936 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 05:46:50,936 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [683575930] [2021-01-07 05:46:50,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 05:46:50,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 05:46:50,989 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-07 05:46:50,990 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [683575930] [2021-01-07 05:46:50,990 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-07 05:46:50,990 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-07 05:46:50,991 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1313601631] [2021-01-07 05:46:50,991 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-07 05:46:50,992 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 05:46:50,992 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-07 05:46:50,993 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-07 05:46:50,993 INFO L87 Difference]: Start difference. First operand 157 states and 239 transitions. Second operand 3 states. [2021-01-07 05:46:51,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 05:46:51,015 INFO L93 Difference]: Finished difference Result 275 states and 416 transitions. [2021-01-07 05:46:51,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-07 05:46:51,016 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 16 [2021-01-07 05:46:51,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 05:46:51,018 INFO L225 Difference]: With dead ends: 275 [2021-01-07 05:46:51,019 INFO L226 Difference]: Without dead ends: 275 [2021-01-07 05:46:51,019 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 [2021-01-07 05:46:51,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 275 states. [2021-01-07 05:46:51,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 275 to 225. [2021-01-07 05:46:51,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 225 states. [2021-01-07 05:46:51,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 225 states to 225 states and 335 transitions. [2021-01-07 05:46:51,026 INFO L78 Accepts]: Start accepts. Automaton has 225 states and 335 transitions. Word has length 16 [2021-01-07 05:46:51,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 05:46:51,027 INFO L481 AbstractCegarLoop]: Abstraction has 225 states and 335 transitions. [2021-01-07 05:46:51,027 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-07 05:46:51,027 INFO L276 IsEmpty]: Start isEmpty. Operand 225 states and 335 transitions. [2021-01-07 05:46:51,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-01-07 05:46:51,028 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 05:46:51,029 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-07 05:46:51,029 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-01-07 05:46:51,029 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK]=== [2021-01-07 05:46:51,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 05:46:51,030 INFO L82 PathProgramCache]: Analyzing trace with hash 193674730, now seen corresponding path program 1 times [2021-01-07 05:46:51,030 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 05:46:51,030 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1432885853] [2021-01-07 05:46:51,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 05:46:51,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 05:46:51,094 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-07 05:46:51,094 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1432885853] [2021-01-07 05:46:51,095 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-07 05:46:51,095 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-07 05:46:51,095 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1181628182] [2021-01-07 05:46:51,096 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-07 05:46:51,096 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 05:46:51,096 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-07 05:46:51,097 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-07 05:46:51,097 INFO L87 Difference]: Start difference. First operand 225 states and 335 transitions. Second operand 3 states. [2021-01-07 05:46:51,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 05:46:51,110 INFO L93 Difference]: Finished difference Result 299 states and 428 transitions. [2021-01-07 05:46:51,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-07 05:46:51,111 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 16 [2021-01-07 05:46:51,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 05:46:51,113 INFO L225 Difference]: With dead ends: 299 [2021-01-07 05:46:51,113 INFO L226 Difference]: Without dead ends: 299 [2021-01-07 05:46:51,114 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 [2021-01-07 05:46:51,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 299 states. [2021-01-07 05:46:51,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 299 to 297. [2021-01-07 05:46:51,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 297 states. [2021-01-07 05:46:51,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 297 states to 297 states and 427 transitions. [2021-01-07 05:46:51,121 INFO L78 Accepts]: Start accepts. Automaton has 297 states and 427 transitions. Word has length 16 [2021-01-07 05:46:51,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 05:46:51,122 INFO L481 AbstractCegarLoop]: Abstraction has 297 states and 427 transitions. [2021-01-07 05:46:51,122 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-07 05:46:51,122 INFO L276 IsEmpty]: Start isEmpty. Operand 297 states and 427 transitions. [2021-01-07 05:46:51,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-01-07 05:46:51,123 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 05:46:51,123 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-07 05:46:51,123 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-01-07 05:46:51,123 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK]=== [2021-01-07 05:46:51,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 05:46:51,124 INFO L82 PathProgramCache]: Analyzing trace with hash 2102192011, now seen corresponding path program 1 times [2021-01-07 05:46:51,124 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 05:46:51,125 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2081839908] [2021-01-07 05:46:51,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 05:46:51,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 05:46:51,148 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-07 05:46:51,148 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2081839908] [2021-01-07 05:46:51,149 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-07 05:46:51,149 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-07 05:46:51,149 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [571096727] [2021-01-07 05:46:51,149 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-07 05:46:51,150 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 05:46:51,150 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-07 05:46:51,151 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-07 05:46:51,151 INFO L87 Difference]: Start difference. First operand 297 states and 427 transitions. Second operand 3 states. [2021-01-07 05:46:51,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 05:46:51,170 INFO L93 Difference]: Finished difference Result 311 states and 436 transitions. [2021-01-07 05:46:51,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-07 05:46:51,171 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2021-01-07 05:46:51,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 05:46:51,172 INFO L225 Difference]: With dead ends: 311 [2021-01-07 05:46:51,173 INFO L226 Difference]: Without dead ends: 311 [2021-01-07 05:46:51,173 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 [2021-01-07 05:46:51,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 311 states. [2021-01-07 05:46:51,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 311 to 309. [2021-01-07 05:46:51,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 309 states. [2021-01-07 05:46:51,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 309 states to 309 states and 435 transitions. [2021-01-07 05:46:51,181 INFO L78 Accepts]: Start accepts. Automaton has 309 states and 435 transitions. Word has length 17 [2021-01-07 05:46:51,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 05:46:51,182 INFO L481 AbstractCegarLoop]: Abstraction has 309 states and 435 transitions. [2021-01-07 05:46:51,182 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-07 05:46:51,182 INFO L276 IsEmpty]: Start isEmpty. Operand 309 states and 435 transitions. [2021-01-07 05:46:51,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-01-07 05:46:51,183 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 05:46:51,183 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-07 05:46:51,183 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-01-07 05:46:51,184 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK]=== [2021-01-07 05:46:51,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 05:46:51,184 INFO L82 PathProgramCache]: Analyzing trace with hash 1709165001, now seen corresponding path program 1 times [2021-01-07 05:46:51,185 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 05:46:51,185 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1591642207] [2021-01-07 05:46:51,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 05:46:51,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 05:46:51,204 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-07 05:46:51,204 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1591642207] [2021-01-07 05:46:51,205 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-07 05:46:51,205 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-07 05:46:51,205 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [779340735] [2021-01-07 05:46:51,206 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-07 05:46:51,206 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 05:46:51,206 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-07 05:46:51,207 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-07 05:46:51,207 INFO L87 Difference]: Start difference. First operand 309 states and 435 transitions. Second operand 3 states. [2021-01-07 05:46:51,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 05:46:51,219 INFO L93 Difference]: Finished difference Result 519 states and 716 transitions. [2021-01-07 05:46:51,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-07 05:46:51,219 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2021-01-07 05:46:51,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 05:46:51,223 INFO L225 Difference]: With dead ends: 519 [2021-01-07 05:46:51,223 INFO L226 Difference]: Without dead ends: 519 [2021-01-07 05:46:51,223 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 [2021-01-07 05:46:51,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 519 states. [2021-01-07 05:46:51,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 519 to 453. [2021-01-07 05:46:51,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 453 states. [2021-01-07 05:46:51,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 453 states to 453 states and 619 transitions. [2021-01-07 05:46:51,235 INFO L78 Accepts]: Start accepts. Automaton has 453 states and 619 transitions. Word has length 17 [2021-01-07 05:46:51,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 05:46:51,235 INFO L481 AbstractCegarLoop]: Abstraction has 453 states and 619 transitions. [2021-01-07 05:46:51,236 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-07 05:46:51,236 INFO L276 IsEmpty]: Start isEmpty. Operand 453 states and 619 transitions. [2021-01-07 05:46:51,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-01-07 05:46:51,237 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 05:46:51,237 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-07 05:46:51,238 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-01-07 05:46:51,238 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK]=== [2021-01-07 05:46:51,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 05:46:51,238 INFO L82 PathProgramCache]: Analyzing trace with hash -1905743925, now seen corresponding path program 1 times [2021-01-07 05:46:51,239 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 05:46:51,239 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1694970973] [2021-01-07 05:46:51,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 05:46:51,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 05:46:51,257 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-07 05:46:51,258 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1694970973] [2021-01-07 05:46:51,258 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-07 05:46:51,258 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-07 05:46:51,259 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [944800275] [2021-01-07 05:46:51,259 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-07 05:46:51,259 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 05:46:51,260 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-07 05:46:51,260 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-07 05:46:51,260 INFO L87 Difference]: Start difference. First operand 453 states and 619 transitions. Second operand 3 states. [2021-01-07 05:46:51,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 05:46:51,273 INFO L93 Difference]: Finished difference Result 583 states and 756 transitions. [2021-01-07 05:46:51,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-07 05:46:51,274 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2021-01-07 05:46:51,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 05:46:51,277 INFO L225 Difference]: With dead ends: 583 [2021-01-07 05:46:51,278 INFO L226 Difference]: Without dead ends: 583 [2021-01-07 05:46:51,278 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 [2021-01-07 05:46:51,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 583 states. [2021-01-07 05:46:51,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 583 to 581. [2021-01-07 05:46:51,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 581 states. [2021-01-07 05:46:51,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 581 states to 581 states and 755 transitions. [2021-01-07 05:46:51,292 INFO L78 Accepts]: Start accepts. Automaton has 581 states and 755 transitions. Word has length 17 [2021-01-07 05:46:51,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 05:46:51,292 INFO L481 AbstractCegarLoop]: Abstraction has 581 states and 755 transitions. [2021-01-07 05:46:51,292 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-07 05:46:51,292 INFO L276 IsEmpty]: Start isEmpty. Operand 581 states and 755 transitions. [2021-01-07 05:46:51,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-01-07 05:46:51,294 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 05:46:51,294 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-07 05:46:51,294 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-01-07 05:46:51,294 INFO L429 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK]=== [2021-01-07 05:46:51,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 05:46:51,295 INFO L82 PathProgramCache]: Analyzing trace with hash 1444723487, now seen corresponding path program 1 times [2021-01-07 05:46:51,295 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 05:46:51,295 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [583874278] [2021-01-07 05:46:51,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 05:46:51,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 05:46:51,314 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-07 05:46:51,314 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [583874278] [2021-01-07 05:46:51,315 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-07 05:46:51,315 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-07 05:46:51,315 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1363923570] [2021-01-07 05:46:51,315 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-07 05:46:51,316 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 05:46:51,316 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-07 05:46:51,316 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-07 05:46:51,317 INFO L87 Difference]: Start difference. First operand 581 states and 755 transitions. Second operand 3 states. [2021-01-07 05:46:51,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 05:46:51,329 INFO L93 Difference]: Finished difference Result 599 states and 756 transitions. [2021-01-07 05:46:51,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-07 05:46:51,330 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 18 [2021-01-07 05:46:51,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 05:46:51,334 INFO L225 Difference]: With dead ends: 599 [2021-01-07 05:46:51,334 INFO L226 Difference]: Without dead ends: 599 [2021-01-07 05:46:51,334 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 [2021-01-07 05:46:51,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 599 states. [2021-01-07 05:46:51,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 599 to 597. [2021-01-07 05:46:51,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 597 states. [2021-01-07 05:46:51,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 597 states to 597 states and 755 transitions. [2021-01-07 05:46:51,349 INFO L78 Accepts]: Start accepts. Automaton has 597 states and 755 transitions. Word has length 18 [2021-01-07 05:46:51,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 05:46:51,350 INFO L481 AbstractCegarLoop]: Abstraction has 597 states and 755 transitions. [2021-01-07 05:46:51,350 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-07 05:46:51,350 INFO L276 IsEmpty]: Start isEmpty. Operand 597 states and 755 transitions. [2021-01-07 05:46:51,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-01-07 05:46:51,351 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 05:46:51,351 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-07 05:46:51,352 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-01-07 05:46:51,352 INFO L429 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK]=== [2021-01-07 05:46:51,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 05:46:51,353 INFO L82 PathProgramCache]: Analyzing trace with hash 1051696477, now seen corresponding path program 1 times [2021-01-07 05:46:51,353 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 05:46:51,353 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [756698553] [2021-01-07 05:46:51,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 05:46:51,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 05:46:51,371 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-07 05:46:51,372 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [756698553] [2021-01-07 05:46:51,373 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-07 05:46:51,373 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-07 05:46:51,373 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1604578849] [2021-01-07 05:46:51,374 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-07 05:46:51,374 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 05:46:51,374 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-07 05:46:51,375 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-07 05:46:51,375 INFO L87 Difference]: Start difference. First operand 597 states and 755 transitions. Second operand 3 states. [2021-01-07 05:46:51,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 05:46:51,388 INFO L93 Difference]: Finished difference Result 965 states and 1171 transitions. [2021-01-07 05:46:51,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-07 05:46:51,389 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 18 [2021-01-07 05:46:51,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 05:46:51,394 INFO L225 Difference]: With dead ends: 965 [2021-01-07 05:46:51,395 INFO L226 Difference]: Without dead ends: 965 [2021-01-07 05:46:51,395 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 [2021-01-07 05:46:51,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 965 states. [2021-01-07 05:46:51,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 965 to 901. [2021-01-07 05:46:51,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 901 states. [2021-01-07 05:46:51,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 901 states to 901 states and 1107 transitions. [2021-01-07 05:46:51,418 INFO L78 Accepts]: Start accepts. Automaton has 901 states and 1107 transitions. Word has length 18 [2021-01-07 05:46:51,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 05:46:51,419 INFO L481 AbstractCegarLoop]: Abstraction has 901 states and 1107 transitions. [2021-01-07 05:46:51,419 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-07 05:46:51,419 INFO L276 IsEmpty]: Start isEmpty. Operand 901 states and 1107 transitions. [2021-01-07 05:46:51,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-01-07 05:46:51,421 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 05:46:51,421 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-07 05:46:51,421 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-01-07 05:46:51,422 INFO L429 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK]=== [2021-01-07 05:46:51,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 05:46:51,422 INFO L82 PathProgramCache]: Analyzing trace with hash 1731754847, now seen corresponding path program 1 times [2021-01-07 05:46:51,423 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 05:46:51,423 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [595600950] [2021-01-07 05:46:51,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 05:46:51,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 05:46:51,441 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-07 05:46:51,441 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [595600950] [2021-01-07 05:46:51,442 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-07 05:46:51,442 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-07 05:46:51,442 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1076788126] [2021-01-07 05:46:51,442 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-07 05:46:51,443 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 05:46:51,443 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-07 05:46:51,443 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-07 05:46:51,443 INFO L87 Difference]: Start difference. First operand 901 states and 1107 transitions. Second operand 3 states. [2021-01-07 05:46:51,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 05:46:51,460 INFO L93 Difference]: Finished difference Result 1123 states and 1282 transitions. [2021-01-07 05:46:51,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-07 05:46:51,460 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 18 [2021-01-07 05:46:51,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 05:46:51,461 INFO L225 Difference]: With dead ends: 1123 [2021-01-07 05:46:51,461 INFO L226 Difference]: Without dead ends: 0 [2021-01-07 05:46:51,462 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 [2021-01-07 05:46:51,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-01-07 05:46:51,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-01-07 05:46:51,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2021-01-07 05:46:51,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-01-07 05:46:51,463 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2021-01-07 05:46:51,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 05:46:51,463 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-01-07 05:46:51,463 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-07 05:46:51,463 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-01-07 05:46:51,463 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-01-07 05:46:51,463 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-01-07 05:46:51,470 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.01 05:46:51 BoogieIcfgContainer [2021-01-07 05:46:51,471 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-01-07 05:46:51,471 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-01-07 05:46:51,472 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-01-07 05:46:51,472 INFO L275 PluginConnector]: Witness Printer initialized [2021-01-07 05:46:51,473 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.01 05:46:49" (3/4) ... [2021-01-07 05:46:51,477 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-01-07 05:46:51,493 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2021-01-07 05:46:51,494 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-01-07 05:46:51,494 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2021-01-07 05:46:51,494 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-01-07 05:46:51,563 INFO L141 WitnessManager]: Wrote witness to /storage/repos/svcomp/c/locks/test_locks_6.c-witness.graphml [2021-01-07 05:46:51,563 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-01-07 05:46:51,570 INFO L168 Benchmark]: Toolchain (without parser) took 3418.74 ms. Allocated memory is still 151.0 MB. Free memory was 126.8 MB in the beginning and 59.4 MB in the end (delta: 67.5 MB). Peak memory consumption was 68.5 MB. Max. memory is 8.0 GB. [2021-01-07 05:46:51,571 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 151.0 MB. Free memory was 122.7 MB in the beginning and 122.2 MB in the end (delta: 436.7 kB). There was no memory consumed. Max. memory is 8.0 GB. [2021-01-07 05:46:51,571 INFO L168 Benchmark]: CACSL2BoogieTranslator took 359.67 ms. Allocated memory is still 151.0 MB. Free memory was 126.7 MB in the beginning and 116.7 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. [2021-01-07 05:46:51,572 INFO L168 Benchmark]: Boogie Procedure Inliner took 49.65 ms. Allocated memory is still 151.0 MB. Free memory was 116.7 MB in the beginning and 115.2 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-01-07 05:46:51,575 INFO L168 Benchmark]: Boogie Preprocessor took 32.04 ms. Allocated memory is still 151.0 MB. Free memory was 115.2 MB in the beginning and 114.1 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-01-07 05:46:51,576 INFO L168 Benchmark]: RCFGBuilder took 666.38 ms. Allocated memory is still 151.0 MB. Free memory was 113.9 MB in the beginning and 131.1 MB in the end (delta: -17.2 MB). Peak memory consumption was 16.7 MB. Max. memory is 8.0 GB. [2021-01-07 05:46:51,576 INFO L168 Benchmark]: TraceAbstraction took 2208.57 ms. Allocated memory is still 151.0 MB. Free memory was 130.6 MB in the beginning and 62.5 MB in the end (delta: 68.0 MB). Peak memory consumption was 69.6 MB. Max. memory is 8.0 GB. [2021-01-07 05:46:51,577 INFO L168 Benchmark]: Witness Printer took 91.82 ms. Allocated memory is still 151.0 MB. Free memory was 62.5 MB in the beginning and 59.4 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2021-01-07 05:46:51,578 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 151.0 MB. Free memory was 122.7 MB in the beginning and 122.2 MB in the end (delta: 436.7 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 359.67 ms. Allocated memory is still 151.0 MB. Free memory was 126.7 MB in the beginning and 116.7 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 49.65 ms. Allocated memory is still 151.0 MB. Free memory was 116.7 MB in the beginning and 115.2 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 32.04 ms. Allocated memory is still 151.0 MB. Free memory was 115.2 MB in the beginning and 114.1 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 666.38 ms. Allocated memory is still 151.0 MB. Free memory was 113.9 MB in the beginning and 131.1 MB in the end (delta: -17.2 MB). Peak memory consumption was 16.7 MB. Max. memory is 8.0 GB. * TraceAbstraction took 2208.57 ms. Allocated memory is still 151.0 MB. Free memory was 130.6 MB in the beginning and 62.5 MB in the end (delta: 68.0 MB). Peak memory consumption was 69.6 MB. Max. memory is 8.0 GB. * Witness Printer took 91.82 ms. Allocated memory is still 151.0 MB. Free memory was 62.5 MB in the beginning and 59.4 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: 107]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 6]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 29 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.0s, OverallIterations: 18, TraceHistogramMax: 1, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 909 SDtfs, 425 SDslu, 523 SDs, 0 SdLazy, 86 SolverSat, 16 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 52 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=901occurred in iteration=17, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 18 MinimizatonAttempts, 268 StatesRemovedByMinimization, 15 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 261 NumberOfCodeBlocks, 261 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 243 ConstructedInterpolants, 0 QuantifiedInterpolants, 6891 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 18 InterpolantComputations, 18 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...