/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc config/AutomizerReach.xml -s config/svcomp-Reach-64bit-Automizer_Default.epf -i ../sv-benchmarks/c/product-lines/elevator_spec3_product22.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-4f750a8 [2020-12-22 06:10:04,266 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-22 06:10:04,269 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-22 06:10:04,318 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-22 06:10:04,318 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-22 06:10:04,320 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-22 06:10:04,322 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-22 06:10:04,325 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-22 06:10:04,338 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-22 06:10:04,341 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-22 06:10:04,343 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-22 06:10:04,346 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-22 06:10:04,346 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-22 06:10:04,351 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-22 06:10:04,354 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-22 06:10:04,356 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-22 06:10:04,359 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-22 06:10:04,361 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-22 06:10:04,368 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-22 06:10:04,373 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-22 06:10:04,379 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-22 06:10:04,380 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-22 06:10:04,382 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-22 06:10:04,385 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-22 06:10:04,390 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-22 06:10:04,391 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-22 06:10:04,393 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-22 06:10:04,398 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-22 06:10:04,398 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-22 06:10:04,404 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-22 06:10:04,404 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-22 06:10:04,405 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-22 06:10:04,407 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-22 06:10:04,409 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-22 06:10:04,410 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-22 06:10:04,410 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-22 06:10:04,411 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-22 06:10:04,411 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-22 06:10:04,411 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-22 06:10:04,412 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-22 06:10:04,413 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-22 06:10:04,414 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-22 06:10:04,473 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-22 06:10:04,474 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-22 06:10:04,477 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-22 06:10:04,478 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-22 06:10:04,478 INFO L138 SettingsManager]: * Use SBE=true [2020-12-22 06:10:04,479 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-22 06:10:04,479 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-22 06:10:04,479 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-22 06:10:04,479 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-22 06:10:04,479 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-22 06:10:04,481 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-22 06:10:04,481 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-22 06:10:04,481 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-22 06:10:04,481 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-22 06:10:04,481 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-22 06:10:04,482 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-22 06:10:04,482 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-22 06:10:04,482 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 06:10:04,482 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-22 06:10:04,482 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-22 06:10:04,483 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-22 06:10:04,483 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-22 06:10:04,483 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-22 06:10:04,483 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-22 06:10:04,483 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-22 06:10:04,483 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-22 06:10:04,915 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-22 06:10:04,950 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-22 06:10:04,953 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-22 06:10:04,955 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-22 06:10:04,956 INFO L275 PluginConnector]: CDTParser initialized [2020-12-22 06:10:04,957 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/elevator_spec3_product22.cil.c [2020-12-22 06:10:05,049 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/50dd1a10e/56ecd8ee041b41a993873e1ca43df843/FLAG3271f1fac [2020-12-22 06:10:05,980 INFO L306 CDTParser]: Found 1 translation units. [2020-12-22 06:10:05,981 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/elevator_spec3_product22.cil.c [2020-12-22 06:10:06,019 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/50dd1a10e/56ecd8ee041b41a993873e1ca43df843/FLAG3271f1fac [2020-12-22 06:10:06,154 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/50dd1a10e/56ecd8ee041b41a993873e1ca43df843 [2020-12-22 06:10:06,159 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-22 06:10:06,162 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-22 06:10:06,166 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-22 06:10:06,166 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-22 06:10:06,170 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-22 06:10:06,172 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 06:10:06" (1/1) ... [2020-12-22 06:10:06,174 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c76af24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:10:06, skipping insertion in model container [2020-12-22 06:10:06,174 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 06:10:06" (1/1) ... [2020-12-22 06:10:06,184 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-22 06:10:06,285 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-22 06:10:06,557 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/elevator_spec3_product22.cil.c[2881,2894] [2020-12-22 06:10:06,988 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 06:10:07,008 INFO L203 MainTranslator]: Completed pre-run [2020-12-22 06:10:07,051 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/elevator_spec3_product22.cil.c[2881,2894] [2020-12-22 06:10:07,292 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 06:10:07,367 INFO L208 MainTranslator]: Completed translation [2020-12-22 06:10:07,367 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:10:07 WrapperNode [2020-12-22 06:10:07,367 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-22 06:10:07,369 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-22 06:10:07,369 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-22 06:10:07,369 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-22 06:10:07,379 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:10:07" (1/1) ... [2020-12-22 06:10:07,428 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:10:07" (1/1) ... [2020-12-22 06:10:08,595 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-22 06:10:08,599 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-22 06:10:08,599 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-22 06:10:08,599 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-22 06:10:08,612 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:10:07" (1/1) ... [2020-12-22 06:10:08,613 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:10:07" (1/1) ... [2020-12-22 06:10:08,809 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:10:07" (1/1) ... [2020-12-22 06:10:08,810 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:10:07" (1/1) ... [2020-12-22 06:10:09,313 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:10:07" (1/1) ... [2020-12-22 06:10:09,821 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:10:07" (1/1) ... [2020-12-22 06:10:09,926 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:10:07" (1/1) ... [2020-12-22 06:10:10,116 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-22 06:10:10,119 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-22 06:10:10,119 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-22 06:10:10,119 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-22 06:10:10,121 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:10:07" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 06:10:10,255 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-22 06:10:10,255 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-22 06:10:10,255 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-22 06:10:10,255 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-22 06:11:01,218 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-22 06:11:01,218 INFO L299 CfgBuilder]: Removed 3577 assume(true) statements. [2020-12-22 06:11:01,237 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 06:11:01 BoogieIcfgContainer [2020-12-22 06:11:01,237 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-22 06:11:01,239 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-22 06:11:01,239 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-22 06:11:01,243 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-22 06:11:01,243 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 06:10:06" (1/3) ... [2020-12-22 06:11:01,244 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b205ab8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 06:11:01, skipping insertion in model container [2020-12-22 06:11:01,244 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:10:07" (2/3) ... [2020-12-22 06:11:01,245 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b205ab8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 06:11:01, skipping insertion in model container [2020-12-22 06:11:01,245 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 06:11:01" (3/3) ... [2020-12-22 06:11:01,246 INFO L111 eAbstractionObserver]: Analyzing ICFG elevator_spec3_product22.cil.c [2020-12-22 06:11:01,253 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-22 06:11:01,274 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 10 error locations. [2020-12-22 06:11:01,300 INFO L253 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2020-12-22 06:11:01,399 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-22 06:11:01,400 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-22 06:11:01,400 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-22 06:11:01,400 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-22 06:11:01,404 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-22 06:11:01,405 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-22 06:11:01,405 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-22 06:11:01,405 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-22 06:11:01,635 INFO L276 IsEmpty]: Start isEmpty. Operand 16793 states. [2020-12-22 06:11:01,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-12-22 06:11:01,659 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:11:01,660 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 06:11:01,661 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:11:01,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:11:01,668 INFO L82 PathProgramCache]: Analyzing trace with hash 1617621870, now seen corresponding path program 1 times [2020-12-22 06:11:01,677 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:11:01,678 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [60665166] [2020-12-22 06:11:01,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:11:02,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:11:02,173 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 06:11:02,174 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [60665166] [2020-12-22 06:11:02,174 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:11:02,175 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 06:11:02,175 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [681117685] [2020-12-22 06:11:02,181 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 06:11:02,181 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:11:02,195 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 06:11:02,196 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 06:11:02,198 INFO L87 Difference]: Start difference. First operand 16793 states. Second operand 4 states. [2020-12-22 06:11:04,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:11:04,853 INFO L93 Difference]: Finished difference Result 66997 states and 126989 transitions. [2020-12-22 06:11:04,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 06:11:04,856 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 30 [2020-12-22 06:11:04,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:11:05,163 INFO L225 Difference]: With dead ends: 66997 [2020-12-22 06:11:05,163 INFO L226 Difference]: Without dead ends: 50217 [2020-12-22 06:11:05,220 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-22 06:11:05,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50217 states. [2020-12-22 06:11:06,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50217 to 16801. [2020-12-22 06:11:06,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16801 states. [2020-12-22 06:11:06,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16801 states to 16801 states and 31823 transitions. [2020-12-22 06:11:06,607 INFO L78 Accepts]: Start accepts. Automaton has 16801 states and 31823 transitions. Word has length 30 [2020-12-22 06:11:06,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:11:06,609 INFO L481 AbstractCegarLoop]: Abstraction has 16801 states and 31823 transitions. [2020-12-22 06:11:06,609 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 06:11:06,609 INFO L276 IsEmpty]: Start isEmpty. Operand 16801 states and 31823 transitions. [2020-12-22 06:11:06,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-12-22 06:11:06,619 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:11:06,619 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 06:11:06,620 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-22 06:11:06,621 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:11:06,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:11:06,624 INFO L82 PathProgramCache]: Analyzing trace with hash -841742673, now seen corresponding path program 1 times [2020-12-22 06:11:06,624 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:11:06,624 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1128890440] [2020-12-22 06:11:06,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:11:06,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:11:06,760 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 06:11:06,760 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1128890440] [2020-12-22 06:11:06,761 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:11:06,761 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 06:11:06,761 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1276163583] [2020-12-22 06:11:06,763 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 06:11:06,763 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:11:06,764 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 06:11:06,764 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 06:11:06,764 INFO L87 Difference]: Start difference. First operand 16801 states and 31823 transitions. Second operand 3 states. [2020-12-22 06:11:07,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:11:07,533 INFO L93 Difference]: Finished difference Result 33518 states and 63493 transitions. [2020-12-22 06:11:07,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 06:11:07,534 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 31 [2020-12-22 06:11:07,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:11:07,597 INFO L225 Difference]: With dead ends: 33518 [2020-12-22 06:11:07,597 INFO L226 Difference]: Without dead ends: 16731 [2020-12-22 06:11:07,629 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 06:11:07,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16731 states. [2020-12-22 06:11:08,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16731 to 16731. [2020-12-22 06:11:08,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16731 states. [2020-12-22 06:11:08,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16731 states to 16731 states and 31683 transitions. [2020-12-22 06:11:08,312 INFO L78 Accepts]: Start accepts. Automaton has 16731 states and 31683 transitions. Word has length 31 [2020-12-22 06:11:08,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:11:08,312 INFO L481 AbstractCegarLoop]: Abstraction has 16731 states and 31683 transitions. [2020-12-22 06:11:08,313 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 06:11:08,313 INFO L276 IsEmpty]: Start isEmpty. Operand 16731 states and 31683 transitions. [2020-12-22 06:11:08,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-12-22 06:11:08,314 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:11:08,315 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 06:11:08,315 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-22 06:11:08,315 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:11:08,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:11:08,318 INFO L82 PathProgramCache]: Analyzing trace with hash 2065945574, now seen corresponding path program 1 times [2020-12-22 06:11:08,319 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:11:08,319 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1935064120] [2020-12-22 06:11:08,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:11:08,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:11:08,468 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 06:11:08,468 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1935064120] [2020-12-22 06:11:08,469 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:11:08,469 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 06:11:08,469 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1566005166] [2020-12-22 06:11:08,470 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 06:11:08,470 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:11:08,471 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 06:11:08,471 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 06:11:08,471 INFO L87 Difference]: Start difference. First operand 16731 states and 31683 transitions. Second operand 4 states. [2020-12-22 06:11:09,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:11:09,416 INFO L93 Difference]: Finished difference Result 33436 states and 63329 transitions. [2020-12-22 06:11:09,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 06:11:09,417 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 34 [2020-12-22 06:11:09,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:11:09,483 INFO L225 Difference]: With dead ends: 33436 [2020-12-22 06:11:09,483 INFO L226 Difference]: Without dead ends: 16731 [2020-12-22 06:11:09,516 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-22 06:11:09,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16731 states. [2020-12-22 06:11:10,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16731 to 16731. [2020-12-22 06:11:10,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16731 states. [2020-12-22 06:11:10,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16731 states to 16731 states and 31681 transitions. [2020-12-22 06:11:10,143 INFO L78 Accepts]: Start accepts. Automaton has 16731 states and 31681 transitions. Word has length 34 [2020-12-22 06:11:10,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:11:10,144 INFO L481 AbstractCegarLoop]: Abstraction has 16731 states and 31681 transitions. [2020-12-22 06:11:10,144 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 06:11:10,144 INFO L276 IsEmpty]: Start isEmpty. Operand 16731 states and 31681 transitions. [2020-12-22 06:11:10,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-12-22 06:11:10,145 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:11:10,145 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 06:11:10,146 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-22 06:11:10,146 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:11:10,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:11:10,147 INFO L82 PathProgramCache]: Analyzing trace with hash -626574687, now seen corresponding path program 1 times [2020-12-22 06:11:10,147 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:11:10,147 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [261225119] [2020-12-22 06:11:10,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:11:10,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:11:10,224 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 06:11:10,224 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [261225119] [2020-12-22 06:11:10,225 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:11:10,225 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 06:11:10,225 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1705977872] [2020-12-22 06:11:10,226 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 06:11:10,226 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:11:10,226 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 06:11:10,227 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 06:11:10,227 INFO L87 Difference]: Start difference. First operand 16731 states and 31681 transitions. Second operand 4 states. [2020-12-22 06:11:11,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:11:11,302 INFO L93 Difference]: Finished difference Result 33436 states and 63326 transitions. [2020-12-22 06:11:11,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 06:11:11,304 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 35 [2020-12-22 06:11:11,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:11:11,375 INFO L225 Difference]: With dead ends: 33436 [2020-12-22 06:11:11,375 INFO L226 Difference]: Without dead ends: 16731 [2020-12-22 06:11:11,401 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-22 06:11:11,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16731 states. [2020-12-22 06:11:12,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16731 to 16731. [2020-12-22 06:11:12,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16731 states. [2020-12-22 06:11:12,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16731 states to 16731 states and 31679 transitions. [2020-12-22 06:11:12,140 INFO L78 Accepts]: Start accepts. Automaton has 16731 states and 31679 transitions. Word has length 35 [2020-12-22 06:11:12,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:11:12,140 INFO L481 AbstractCegarLoop]: Abstraction has 16731 states and 31679 transitions. [2020-12-22 06:11:12,140 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 06:11:12,140 INFO L276 IsEmpty]: Start isEmpty. Operand 16731 states and 31679 transitions. [2020-12-22 06:11:12,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2020-12-22 06:11:12,141 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:11:12,141 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 06:11:12,142 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-22 06:11:12,142 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:11:12,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:11:12,142 INFO L82 PathProgramCache]: Analyzing trace with hash 1114248673, now seen corresponding path program 1 times [2020-12-22 06:11:12,143 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:11:12,143 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [121719709] [2020-12-22 06:11:12,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:11:12,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:11:12,211 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 06:11:12,211 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [121719709] [2020-12-22 06:11:12,212 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:11:12,212 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 06:11:12,212 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1787547506] [2020-12-22 06:11:12,213 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 06:11:12,213 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:11:12,213 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 06:11:12,214 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 06:11:12,214 INFO L87 Difference]: Start difference. First operand 16731 states and 31679 transitions. Second operand 4 states. [2020-12-22 06:11:13,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:11:13,340 INFO L93 Difference]: Finished difference Result 33436 states and 63323 transitions. [2020-12-22 06:11:13,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 06:11:13,341 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 36 [2020-12-22 06:11:13,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:11:13,389 INFO L225 Difference]: With dead ends: 33436 [2020-12-22 06:11:13,390 INFO L226 Difference]: Without dead ends: 16731 [2020-12-22 06:11:13,406 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-22 06:11:13,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16731 states. [2020-12-22 06:11:13,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16731 to 16731. [2020-12-22 06:11:13,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16731 states. [2020-12-22 06:11:14,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16731 states to 16731 states and 31677 transitions. [2020-12-22 06:11:14,004 INFO L78 Accepts]: Start accepts. Automaton has 16731 states and 31677 transitions. Word has length 36 [2020-12-22 06:11:14,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:11:14,004 INFO L481 AbstractCegarLoop]: Abstraction has 16731 states and 31677 transitions. [2020-12-22 06:11:14,005 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 06:11:14,005 INFO L276 IsEmpty]: Start isEmpty. Operand 16731 states and 31677 transitions. [2020-12-22 06:11:14,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-12-22 06:11:14,006 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:11:14,006 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 06:11:14,006 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-22 06:11:14,006 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:11:14,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:11:14,007 INFO L82 PathProgramCache]: Analyzing trace with hash -1445196484, now seen corresponding path program 1 times [2020-12-22 06:11:14,007 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:11:14,007 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1942977971] [2020-12-22 06:11:14,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:11:14,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:11:14,082 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 06:11:14,083 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1942977971] [2020-12-22 06:11:14,083 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:11:14,083 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 06:11:14,083 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1971432816] [2020-12-22 06:11:14,084 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 06:11:14,084 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:11:14,084 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 06:11:14,085 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 06:11:14,085 INFO L87 Difference]: Start difference. First operand 16731 states and 31677 transitions. Second operand 4 states. [2020-12-22 06:11:15,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:11:15,160 INFO L93 Difference]: Finished difference Result 33436 states and 63320 transitions. [2020-12-22 06:11:15,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 06:11:15,161 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 37 [2020-12-22 06:11:15,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:11:15,209 INFO L225 Difference]: With dead ends: 33436 [2020-12-22 06:11:15,209 INFO L226 Difference]: Without dead ends: 16731 [2020-12-22 06:11:15,230 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-22 06:11:15,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16731 states. [2020-12-22 06:11:15,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16731 to 16731. [2020-12-22 06:11:15,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16731 states. [2020-12-22 06:11:15,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16731 states to 16731 states and 31675 transitions. [2020-12-22 06:11:15,950 INFO L78 Accepts]: Start accepts. Automaton has 16731 states and 31675 transitions. Word has length 37 [2020-12-22 06:11:15,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:11:15,950 INFO L481 AbstractCegarLoop]: Abstraction has 16731 states and 31675 transitions. [2020-12-22 06:11:15,950 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 06:11:15,951 INFO L276 IsEmpty]: Start isEmpty. Operand 16731 states and 31675 transitions. [2020-12-22 06:11:15,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-12-22 06:11:15,951 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:11:15,952 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 06:11:15,952 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-22 06:11:15,952 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:11:15,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:11:15,953 INFO L82 PathProgramCache]: Analyzing trace with hash 125987804, now seen corresponding path program 1 times [2020-12-22 06:11:15,953 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:11:15,953 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1025705568] [2020-12-22 06:11:15,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:11:15,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:11:16,041 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 06:11:16,041 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1025705568] [2020-12-22 06:11:16,042 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:11:16,042 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 06:11:16,042 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [789370963] [2020-12-22 06:11:16,042 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 06:11:16,043 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:11:16,043 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 06:11:16,043 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 06:11:16,044 INFO L87 Difference]: Start difference. First operand 16731 states and 31675 transitions. Second operand 5 states. [2020-12-22 06:11:19,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:11:19,272 INFO L93 Difference]: Finished difference Result 46992 states and 88849 transitions. [2020-12-22 06:11:19,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-12-22 06:11:19,273 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 38 [2020-12-22 06:11:19,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:11:19,382 INFO L225 Difference]: With dead ends: 46992 [2020-12-22 06:11:19,382 INFO L226 Difference]: Without dead ends: 30331 [2020-12-22 06:11:19,414 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-12-22 06:11:19,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30331 states. [2020-12-22 06:11:20,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30331 to 29818. [2020-12-22 06:11:20,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29818 states. [2020-12-22 06:11:20,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29818 states to 29818 states and 56456 transitions. [2020-12-22 06:11:20,790 INFO L78 Accepts]: Start accepts. Automaton has 29818 states and 56456 transitions. Word has length 38 [2020-12-22 06:11:20,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:11:20,790 INFO L481 AbstractCegarLoop]: Abstraction has 29818 states and 56456 transitions. [2020-12-22 06:11:20,790 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 06:11:20,790 INFO L276 IsEmpty]: Start isEmpty. Operand 29818 states and 56456 transitions. [2020-12-22 06:11:20,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-12-22 06:11:20,793 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:11:20,793 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 06:11:20,793 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-12-22 06:11:20,794 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:11:20,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:11:20,794 INFO L82 PathProgramCache]: Analyzing trace with hash -566726153, now seen corresponding path program 1 times [2020-12-22 06:11:20,795 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:11:20,795 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [54318877] [2020-12-22 06:11:20,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:11:20,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:11:20,909 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 06:11:20,909 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [54318877] [2020-12-22 06:11:20,909 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:11:20,909 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 06:11:20,910 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1651638007] [2020-12-22 06:11:20,910 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 06:11:20,910 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:11:20,911 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 06:11:20,911 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 06:11:20,911 INFO L87 Difference]: Start difference. First operand 29818 states and 56456 transitions. Second operand 5 states. [2020-12-22 06:11:34,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:11:34,327 INFO L93 Difference]: Finished difference Result 247707 states and 469093 transitions. [2020-12-22 06:11:34,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-22 06:11:34,328 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 38 [2020-12-22 06:11:34,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:11:35,292 INFO L225 Difference]: With dead ends: 247707 [2020-12-22 06:11:35,292 INFO L226 Difference]: Without dead ends: 217959 [2020-12-22 06:11:35,679 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-12-22 06:11:36,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217959 states. [2020-12-22 06:11:39,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217959 to 55135. [2020-12-22 06:11:39,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55135 states. [2020-12-22 06:11:39,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55135 states to 55135 states and 104160 transitions. [2020-12-22 06:11:39,134 INFO L78 Accepts]: Start accepts. Automaton has 55135 states and 104160 transitions. Word has length 38 [2020-12-22 06:11:39,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:11:39,134 INFO L481 AbstractCegarLoop]: Abstraction has 55135 states and 104160 transitions. [2020-12-22 06:11:39,135 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 06:11:39,135 INFO L276 IsEmpty]: Start isEmpty. Operand 55135 states and 104160 transitions. [2020-12-22 06:11:39,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2020-12-22 06:11:39,135 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:11:39,136 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 06:11:39,136 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-12-22 06:11:39,136 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:11:39,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:11:39,137 INFO L82 PathProgramCache]: Analyzing trace with hash 109675891, now seen corresponding path program 1 times [2020-12-22 06:11:39,137 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:11:39,137 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [972865844] [2020-12-22 06:11:39,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:11:39,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:11:39,191 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 06:11:39,192 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [972865844] [2020-12-22 06:11:39,192 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:11:39,192 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 06:11:39,192 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1499411728] [2020-12-22 06:11:39,193 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 06:11:39,193 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:11:39,193 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 06:11:39,194 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 06:11:39,194 INFO L87 Difference]: Start difference. First operand 55135 states and 104160 transitions. Second operand 3 states. [2020-12-22 06:11:43,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:11:43,727 INFO L93 Difference]: Finished difference Result 164245 states and 310284 transitions. [2020-12-22 06:11:43,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 06:11:43,728 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 39 [2020-12-22 06:11:43,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:11:44,081 INFO L225 Difference]: With dead ends: 164245 [2020-12-22 06:11:44,081 INFO L226 Difference]: Without dead ends: 109142 [2020-12-22 06:11:44,208 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 06:11:44,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109142 states. [2020-12-22 06:11:46,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109142 to 55011. [2020-12-22 06:11:46,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55011 states. [2020-12-22 06:11:46,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55011 states to 55011 states and 103912 transitions. [2020-12-22 06:11:46,498 INFO L78 Accepts]: Start accepts. Automaton has 55011 states and 103912 transitions. Word has length 39 [2020-12-22 06:11:46,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:11:46,498 INFO L481 AbstractCegarLoop]: Abstraction has 55011 states and 103912 transitions. [2020-12-22 06:11:46,498 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 06:11:46,498 INFO L276 IsEmpty]: Start isEmpty. Operand 55011 states and 103912 transitions. [2020-12-22 06:11:46,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2020-12-22 06:11:46,499 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:11:46,499 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 06:11:46,499 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-12-22 06:11:46,500 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:11:46,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:11:46,500 INFO L82 PathProgramCache]: Analyzing trace with hash -2132647664, now seen corresponding path program 1 times [2020-12-22 06:11:46,500 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:11:46,501 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2138819910] [2020-12-22 06:11:46,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:11:46,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:11:46,592 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 06:11:46,593 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2138819910] [2020-12-22 06:11:46,593 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:11:46,593 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 06:11:46,593 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1490168974] [2020-12-22 06:11:46,594 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 06:11:46,594 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:11:46,595 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 06:11:46,595 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 06:11:46,595 INFO L87 Difference]: Start difference. First operand 55011 states and 103912 transitions. Second operand 5 states. [2020-12-22 06:12:02,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:12:02,823 INFO L93 Difference]: Finished difference Result 127932 states and 241477 transitions. [2020-12-22 06:12:02,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-22 06:12:02,825 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 39 [2020-12-22 06:12:02,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:12:02,964 INFO L225 Difference]: With dead ends: 127932 [2020-12-22 06:12:02,965 INFO L226 Difference]: Without dead ends: 72955 [2020-12-22 06:12:03,035 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-12-22 06:12:03,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72955 states. [2020-12-22 06:12:05,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72955 to 72495. [2020-12-22 06:12:05,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72495 states. [2020-12-22 06:12:05,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72495 states to 72495 states and 134596 transitions. [2020-12-22 06:12:05,795 INFO L78 Accepts]: Start accepts. Automaton has 72495 states and 134596 transitions. Word has length 39 [2020-12-22 06:12:05,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:12:05,795 INFO L481 AbstractCegarLoop]: Abstraction has 72495 states and 134596 transitions. [2020-12-22 06:12:05,795 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 06:12:05,795 INFO L276 IsEmpty]: Start isEmpty. Operand 72495 states and 134596 transitions. [2020-12-22 06:12:05,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-12-22 06:12:05,796 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:12:05,796 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 06:12:05,796 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-12-22 06:12:05,797 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:12:05,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:12:05,797 INFO L82 PathProgramCache]: Analyzing trace with hash -2120990321, now seen corresponding path program 1 times [2020-12-22 06:12:05,797 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:12:05,798 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [439561715] [2020-12-22 06:12:05,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:12:05,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:12:05,887 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 06:12:05,888 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [439561715] [2020-12-22 06:12:05,888 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:12:05,888 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 06:12:05,888 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1833647209] [2020-12-22 06:12:05,888 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 06:12:05,889 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:12:05,889 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 06:12:05,889 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 06:12:05,890 INFO L87 Difference]: Start difference. First operand 72495 states and 134596 transitions. Second operand 5 states. [2020-12-22 06:12:12,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:12:12,253 INFO L93 Difference]: Finished difference Result 215941 states and 401002 transitions. [2020-12-22 06:12:12,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 06:12:12,254 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 42 [2020-12-22 06:12:12,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:12:12,680 INFO L225 Difference]: With dead ends: 215941 [2020-12-22 06:12:12,680 INFO L226 Difference]: Without dead ends: 143486 [2020-12-22 06:12:12,767 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-12-22 06:12:12,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143486 states. [2020-12-22 06:12:15,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143486 to 72495. [2020-12-22 06:12:15,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72495 states. [2020-12-22 06:12:15,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72495 states to 72495 states and 134485 transitions. [2020-12-22 06:12:15,949 INFO L78 Accepts]: Start accepts. Automaton has 72495 states and 134485 transitions. Word has length 42 [2020-12-22 06:12:15,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:12:15,950 INFO L481 AbstractCegarLoop]: Abstraction has 72495 states and 134485 transitions. [2020-12-22 06:12:15,950 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 06:12:15,950 INFO L276 IsEmpty]: Start isEmpty. Operand 72495 states and 134485 transitions. [2020-12-22 06:12:15,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-12-22 06:12:15,950 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:12:15,951 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 06:12:15,951 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-12-22 06:12:15,951 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:12:15,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:12:15,951 INFO L82 PathProgramCache]: Analyzing trace with hash 98034836, now seen corresponding path program 1 times [2020-12-22 06:12:15,952 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:12:15,952 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [322070863] [2020-12-22 06:12:15,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:12:16,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:12:16,073 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 06:12:16,074 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [322070863] [2020-12-22 06:12:16,074 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:12:16,074 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 06:12:16,074 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1762409142] [2020-12-22 06:12:16,075 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 06:12:16,075 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:12:16,076 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 06:12:16,076 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 06:12:16,076 INFO L87 Difference]: Start difference. First operand 72495 states and 134485 transitions. Second operand 5 states. [2020-12-22 06:12:40,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:12:40,560 INFO L93 Difference]: Finished difference Result 619543 states and 1150693 transitions. [2020-12-22 06:12:40,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-22 06:12:40,561 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 43 [2020-12-22 06:12:40,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:12:42,204 INFO L225 Difference]: With dead ends: 619543 [2020-12-22 06:12:42,205 INFO L226 Difference]: Without dead ends: 547107 [2020-12-22 06:12:42,416 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-12-22 06:12:43,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 547107 states. [2020-12-22 06:12:53,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 547107 to 138491. [2020-12-22 06:12:53,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 138491 states. [2020-12-22 06:12:53,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138491 states to 138491 states and 256498 transitions. [2020-12-22 06:12:53,907 INFO L78 Accepts]: Start accepts. Automaton has 138491 states and 256498 transitions. Word has length 43 [2020-12-22 06:12:53,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:12:53,908 INFO L481 AbstractCegarLoop]: Abstraction has 138491 states and 256498 transitions. [2020-12-22 06:12:53,908 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 06:12:53,908 INFO L276 IsEmpty]: Start isEmpty. Operand 138491 states and 256498 transitions. [2020-12-22 06:12:53,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-12-22 06:12:53,909 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:12:53,909 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 06:12:53,910 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-12-22 06:12:53,910 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:12:53,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:12:53,910 INFO L82 PathProgramCache]: Analyzing trace with hash 813751562, now seen corresponding path program 1 times [2020-12-22 06:12:53,911 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:12:53,911 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [632375883] [2020-12-22 06:12:53,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:12:53,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:12:54,011 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 06:12:54,011 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [632375883] [2020-12-22 06:12:54,012 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:12:54,012 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 06:12:54,012 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1433203592] [2020-12-22 06:12:54,012 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 06:12:54,013 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:12:54,014 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 06:12:54,015 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 06:12:54,015 INFO L87 Difference]: Start difference. First operand 138491 states and 256498 transitions. Second operand 3 states. [2020-12-22 06:13:06,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:13:06,273 INFO L93 Difference]: Finished difference Result 412856 states and 764894 transitions. [2020-12-22 06:13:06,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 06:13:06,274 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 44 [2020-12-22 06:13:06,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:13:07,038 INFO L225 Difference]: With dead ends: 412856 [2020-12-22 06:13:07,038 INFO L226 Difference]: Without dead ends: 274402 [2020-12-22 06:13:07,195 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 06:13:07,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 274402 states. [2020-12-22 06:13:13,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 274402 to 138237. [2020-12-22 06:13:13,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 138237 states. [2020-12-22 06:13:14,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138237 states to 138237 states and 255997 transitions. [2020-12-22 06:13:14,067 INFO L78 Accepts]: Start accepts. Automaton has 138237 states and 255997 transitions. Word has length 44 [2020-12-22 06:13:14,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:13:14,067 INFO L481 AbstractCegarLoop]: Abstraction has 138237 states and 255997 transitions. [2020-12-22 06:13:14,068 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 06:13:14,068 INFO L276 IsEmpty]: Start isEmpty. Operand 138237 states and 255997 transitions. [2020-12-22 06:13:14,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-12-22 06:13:14,071 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:13:14,071 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 06:13:14,071 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-12-22 06:13:14,071 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:13:14,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:13:14,078 INFO L82 PathProgramCache]: Analyzing trace with hash 785377680, now seen corresponding path program 1 times [2020-12-22 06:13:14,080 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:13:14,080 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [265091997] [2020-12-22 06:13:14,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:13:14,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:13:14,138 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 06:13:14,139 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [265091997] [2020-12-22 06:13:14,139 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:13:14,139 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 06:13:14,139 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1219699635] [2020-12-22 06:13:14,140 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 06:13:14,140 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:13:14,140 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 06:13:14,140 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 06:13:14,141 INFO L87 Difference]: Start difference. First operand 138237 states and 255997 transitions. Second operand 3 states. [2020-12-22 06:13:25,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:13:25,277 INFO L93 Difference]: Finished difference Result 412355 states and 763921 transitions. [2020-12-22 06:13:25,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 06:13:25,278 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 48 [2020-12-22 06:13:25,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:13:25,895 INFO L225 Difference]: With dead ends: 412355 [2020-12-22 06:13:25,895 INFO L226 Difference]: Without dead ends: 274161 [2020-12-22 06:13:26,061 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 06:13:26,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 274161 states.