/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.6 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf language data_model -i ../../../trunk/examples/svcomp/psyco/psyco_accelerometer_1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-28 17:11:35,364 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-28 17:11:35,366 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-28 17:11:35,417 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-28 17:11:35,418 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-28 17:11:35,424 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-28 17:11:35,426 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-28 17:11:35,430 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-28 17:11:35,434 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-28 17:11:35,441 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-28 17:11:35,443 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-28 17:11:35,444 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-28 17:11:35,445 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-28 17:11:35,448 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-28 17:11:35,450 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-28 17:11:35,453 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-28 17:11:35,454 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-28 17:11:35,457 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-28 17:11:35,471 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-28 17:11:35,473 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-28 17:11:35,475 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-28 17:11:35,476 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-28 17:11:35,477 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-28 17:11:35,478 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-28 17:11:35,481 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-28 17:11:35,481 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-28 17:11:35,481 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-28 17:11:35,482 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-28 17:11:35,483 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-28 17:11:35,484 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-28 17:11:35,484 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-28 17:11:35,485 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-28 17:11:35,486 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-28 17:11:35,486 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-28 17:11:35,488 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-28 17:11:35,488 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-28 17:11:35,489 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-28 17:11:35,489 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-28 17:11:35,489 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-28 17:11:35,490 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-28 17:11:35,491 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-28 17:11:35,492 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-28 17:11:35,517 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-28 17:11:35,517 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-28 17:11:35,519 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-28 17:11:35,519 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-28 17:11:35,519 INFO L138 SettingsManager]: * Use SBE=true [2020-10-28 17:11:35,520 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-28 17:11:35,520 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-28 17:11:35,520 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-28 17:11:35,520 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-28 17:11:35,520 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-28 17:11:35,521 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-28 17:11:35,521 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-28 17:11:35,521 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-28 17:11:35,521 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-28 17:11:35,521 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-28 17:11:35,521 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-28 17:11:35,522 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-28 17:11:35,522 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-28 17:11:35,522 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-28 17:11:35,522 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-28 17:11:35,522 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-28 17:11:35,523 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-28 17:11:35,523 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-28 17:11:35,523 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-28 17:11:35,523 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-28 17:11:35,523 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-28 17:11:35,524 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-28 17:11:35,524 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-28 17:11:35,524 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-28 17:11:35,524 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-2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true;unknown-allowed=true; [2020-10-28 17:11:35,907 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-28 17:11:35,933 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-28 17:11:35,936 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-28 17:11:35,937 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-28 17:11:35,938 INFO L275 PluginConnector]: CDTParser initialized [2020-10-28 17:11:35,939 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/psyco/psyco_accelerometer_1.c [2020-10-28 17:11:36,013 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/19a6ec6d7/9886b9edf16848ed928b86fa5e3f38eb/FLAGe67a04dbb [2020-10-28 17:11:36,943 INFO L306 CDTParser]: Found 1 translation units. [2020-10-28 17:11:36,944 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/psyco/psyco_accelerometer_1.c [2020-10-28 17:11:36,988 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/19a6ec6d7/9886b9edf16848ed928b86fa5e3f38eb/FLAGe67a04dbb [2020-10-28 17:11:37,429 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/19a6ec6d7/9886b9edf16848ed928b86fa5e3f38eb [2020-10-28 17:11:37,432 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-28 17:11:37,439 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-28 17:11:37,440 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-28 17:11:37,441 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-28 17:11:37,449 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-28 17:11:37,450 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 05:11:37" (1/1) ... [2020-10-28 17:11:37,454 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ac1588d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 05:11:37, skipping insertion in model container [2020-10-28 17:11:37,455 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 05:11:37" (1/1) ... [2020-10-28 17:11:37,463 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-28 17:11:37,599 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-28 17:11:38,442 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 17:11:38,456 INFO L203 MainTranslator]: Completed pre-run [2020-10-28 17:11:38,790 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 17:11:38,807 INFO L208 MainTranslator]: Completed translation [2020-10-28 17:11:38,807 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 05:11:38 WrapperNode [2020-10-28 17:11:38,808 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-28 17:11:38,809 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-28 17:11:38,809 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-28 17:11:38,809 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-28 17:11:38,824 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 05:11:38" (1/1) ... [2020-10-28 17:11:38,826 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 05:11:38" (1/1) ... [2020-10-28 17:11:38,887 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 05:11:38" (1/1) ... [2020-10-28 17:11:38,887 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 05:11:38" (1/1) ... [2020-10-28 17:11:38,998 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 05:11:38" (1/1) ... [2020-10-28 17:11:39,024 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 05:11:38" (1/1) ... [2020-10-28 17:11:39,050 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 05:11:38" (1/1) ... [2020-10-28 17:11:39,070 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-28 17:11:39,072 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-28 17:11:39,073 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-28 17:11:39,073 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-28 17:11:39,074 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 05:11:38" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/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 [2020-10-28 17:11:39,147 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-28 17:11:39,147 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-28 17:11:39,147 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-28 17:11:39,148 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-28 17:11:39,148 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-28 17:11:39,148 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-28 17:11:39,148 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-28 17:11:39,148 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-28 17:11:39,149 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-28 17:11:39,149 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-28 17:11:39,149 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-28 17:11:39,149 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-28 17:11:39,149 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-28 17:11:39,150 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-28 17:11:39,150 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-28 17:11:39,150 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-28 17:11:40,979 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-28 17:11:40,979 INFO L298 CfgBuilder]: Removed 21 assume(true) statements. [2020-10-28 17:11:40,981 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 05:11:40 BoogieIcfgContainer [2020-10-28 17:11:40,981 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-28 17:11:40,983 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-28 17:11:40,983 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-28 17:11:40,987 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-28 17:11:40,987 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 05:11:37" (1/3) ... [2020-10-28 17:11:40,988 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f3cccd8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 05:11:40, skipping insertion in model container [2020-10-28 17:11:40,988 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 05:11:38" (2/3) ... [2020-10-28 17:11:40,989 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f3cccd8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 05:11:40, skipping insertion in model container [2020-10-28 17:11:40,989 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 05:11:40" (3/3) ... [2020-10-28 17:11:40,990 INFO L111 eAbstractionObserver]: Analyzing ICFG psyco_accelerometer_1.c [2020-10-28 17:11:41,003 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-28 17:11:41,008 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-28 17:11:41,022 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-28 17:11:41,053 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-28 17:11:41,053 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-28 17:11:41,053 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-28 17:11:41,053 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-28 17:11:41,053 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-28 17:11:41,053 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-28 17:11:41,054 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-28 17:11:41,054 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-28 17:11:41,078 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states. [2020-10-28 17:11:41,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-28 17:11:41,085 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 17:11:41,086 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 17:11:41,086 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 17:11:41,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 17:11:41,093 INFO L82 PathProgramCache]: Analyzing trace with hash 623082268, now seen corresponding path program 1 times [2020-10-28 17:11:41,103 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 17:11:41,103 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1862250063] [2020-10-28 17:11:41,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 17:11:41,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:11:41,356 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:11:41,516 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:11:41,516 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-28 17:11:41,516 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:11:41,517 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 228 [2020-10-28 17:11:41,519 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:11:41,519 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:11:41,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:11:41,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-10-28 17:11:41,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:11:41,520 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-28 17:11:41,623 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 17:11:41,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:11:41,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:11:41,644 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:11:41,645 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 17:11:41,645 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:11:41,645 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-28 17:11:41,645 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:11:41,646 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:11:41,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:11:41,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:11:41,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:11:41,647 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:11:41,662 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 17:11:41,663 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1862250063] [2020-10-28 17:11:41,666 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 17:11:41,667 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-28 17:11:41,667 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1379293970] [2020-10-28 17:11:41,672 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-28 17:11:41,673 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 17:11:41,687 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-28 17:11:41,688 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-28 17:11:41,690 INFO L87 Difference]: Start difference. First operand 246 states. Second operand 3 states. [2020-10-28 17:11:41,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 17:11:41,790 INFO L93 Difference]: Finished difference Result 474 states and 922 transitions. [2020-10-28 17:11:41,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-28 17:11:41,796 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 14 [2020-10-28 17:11:41,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 17:11:41,809 INFO L225 Difference]: With dead ends: 474 [2020-10-28 17:11:41,809 INFO L226 Difference]: Without dead ends: 229 [2020-10-28 17:11:41,814 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-28 17:11:41,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 229 states. [2020-10-28 17:11:41,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 229 to 229. [2020-10-28 17:11:41,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 229 states. [2020-10-28 17:11:41,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 398 transitions. [2020-10-28 17:11:41,878 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 398 transitions. Word has length 14 [2020-10-28 17:11:41,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 17:11:41,879 INFO L481 AbstractCegarLoop]: Abstraction has 229 states and 398 transitions. [2020-10-28 17:11:41,879 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-28 17:11:41,879 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 398 transitions. [2020-10-28 17:11:41,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-28 17:11:41,880 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 17:11:41,881 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 17:11:41,881 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-28 17:11:41,881 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 17:11:41,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 17:11:41,882 INFO L82 PathProgramCache]: Analyzing trace with hash 1462267612, now seen corresponding path program 1 times [2020-10-28 17:11:41,882 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 17:11:41,883 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [987763857] [2020-10-28 17:11:41,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 17:11:41,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:11:41,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:11:41,942 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:11:41,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:11:42,258 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:11:42,258 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-28 17:11:42,258 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 17:11:42,259 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 356 [2020-10-28 17:11:42,260 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:11:42,260 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:11:42,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:11:42,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-28 17:11:42,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-28 17:11:42,261 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-28 17:11:42,342 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 17:11:42,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:11:42,349 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:11:42,357 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:11:42,357 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 17:11:42,357 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:11:42,358 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-28 17:11:42,358 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:11:42,358 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:11:42,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:11:42,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:11:42,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:11:42,359 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:11:42,367 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 17:11:42,367 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [987763857] [2020-10-28 17:11:42,368 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 17:11:42,368 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-28 17:11:42,368 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1981999063] [2020-10-28 17:11:42,370 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-28 17:11:42,370 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 17:11:42,371 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-28 17:11:42,371 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-28 17:11:42,371 INFO L87 Difference]: Start difference. First operand 229 states and 398 transitions. Second operand 4 states. [2020-10-28 17:11:43,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 17:11:43,879 INFO L93 Difference]: Finished difference Result 667 states and 1175 transitions. [2020-10-28 17:11:43,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-28 17:11:43,880 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2020-10-28 17:11:43,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 17:11:43,888 INFO L225 Difference]: With dead ends: 667 [2020-10-28 17:11:43,888 INFO L226 Difference]: Without dead ends: 436 [2020-10-28 17:11:43,893 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-28 17:11:43,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 436 states. [2020-10-28 17:11:43,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 436 to 423. [2020-10-28 17:11:43,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 423 states. [2020-10-28 17:11:43,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 423 states to 423 states and 754 transitions. [2020-10-28 17:11:43,931 INFO L78 Accepts]: Start accepts. Automaton has 423 states and 754 transitions. Word has length 15 [2020-10-28 17:11:43,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 17:11:43,931 INFO L481 AbstractCegarLoop]: Abstraction has 423 states and 754 transitions. [2020-10-28 17:11:43,931 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-28 17:11:43,931 INFO L276 IsEmpty]: Start isEmpty. Operand 423 states and 754 transitions. [2020-10-28 17:11:43,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-28 17:11:43,932 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 17:11:43,933 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 17:11:43,933 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-28 17:11:43,933 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 17:11:43,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 17:11:43,934 INFO L82 PathProgramCache]: Analyzing trace with hash -1560435233, now seen corresponding path program 1 times [2020-10-28 17:11:43,934 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 17:11:43,934 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1569620600] [2020-10-28 17:11:43,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 17:11:43,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:11:43,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:11:43,978 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:11:44,038 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:11:44,038 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-10-28 17:11:44,038 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 17:11:44,039 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 89 [2020-10-28 17:11:44,039 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:11:44,039 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:11:44,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:11:44,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-28 17:11:44,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 17:11:44,040 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:11:44,120 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 17:11:44,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:11:44,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:11:44,133 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:11:44,133 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 17:11:44,133 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:11:44,134 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 17:11:44,134 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:11:44,134 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:11:44,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:11:44,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:11:44,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:11:44,135 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:11:44,139 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 17:11:44,140 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1569620600] [2020-10-28 17:11:44,140 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 17:11:44,140 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-28 17:11:44,141 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1452187629] [2020-10-28 17:11:44,141 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-28 17:11:44,141 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 17:11:44,142 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-28 17:11:44,142 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-28 17:11:44,142 INFO L87 Difference]: Start difference. First operand 423 states and 754 transitions. Second operand 4 states. [2020-10-28 17:11:45,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 17:11:45,226 INFO L93 Difference]: Finished difference Result 854 states and 1526 transitions. [2020-10-28 17:11:45,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-28 17:11:45,226 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 16 [2020-10-28 17:11:45,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 17:11:45,229 INFO L225 Difference]: With dead ends: 854 [2020-10-28 17:11:45,230 INFO L226 Difference]: Without dead ends: 437 [2020-10-28 17:11:45,232 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-28 17:11:45,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 437 states. [2020-10-28 17:11:45,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 437 to 429. [2020-10-28 17:11:45,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 429 states. [2020-10-28 17:11:45,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 429 states to 429 states and 760 transitions. [2020-10-28 17:11:45,267 INFO L78 Accepts]: Start accepts. Automaton has 429 states and 760 transitions. Word has length 16 [2020-10-28 17:11:45,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 17:11:45,268 INFO L481 AbstractCegarLoop]: Abstraction has 429 states and 760 transitions. [2020-10-28 17:11:45,268 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-28 17:11:45,268 INFO L276 IsEmpty]: Start isEmpty. Operand 429 states and 760 transitions. [2020-10-28 17:11:45,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-10-28 17:11:45,270 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 17:11:45,270 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 17:11:45,270 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-28 17:11:45,271 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 17:11:45,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 17:11:45,271 INFO L82 PathProgramCache]: Analyzing trace with hash 645599938, now seen corresponding path program 1 times [2020-10-28 17:11:45,272 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 17:11:45,272 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [325032107] [2020-10-28 17:11:45,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 17:11:45,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:11:45,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:11:45,383 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:11:45,383 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-10-28 17:11:45,384 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:11:45,384 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 83 [2020-10-28 17:11:45,384 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:11:45,385 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:11:45,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:11:45,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-10-28 17:11:45,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 17:11:45,385 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:11:45,454 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 17:11:45,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:11:45,460 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:11:45,469 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:11:45,469 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 17:11:45,469 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:11:45,469 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-28 17:11:45,470 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:11:45,470 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:11:45,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:11:45,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:11:45,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:11:45,474 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-28 17:11:45,483 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 17:11:45,483 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [325032107] [2020-10-28 17:11:45,483 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 17:11:45,483 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-28 17:11:45,484 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1397369176] [2020-10-28 17:11:45,484 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-28 17:11:45,484 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 17:11:45,492 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-28 17:11:45,494 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-28 17:11:45,494 INFO L87 Difference]: Start difference. First operand 429 states and 760 transitions. Second operand 4 states. [2020-10-28 17:11:45,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 17:11:45,851 INFO L93 Difference]: Finished difference Result 832 states and 1486 transitions. [2020-10-28 17:11:45,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-28 17:11:45,852 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 21 [2020-10-28 17:11:45,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 17:11:45,855 INFO L225 Difference]: With dead ends: 832 [2020-10-28 17:11:45,855 INFO L226 Difference]: Without dead ends: 409 [2020-10-28 17:11:45,856 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-28 17:11:45,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 409 states. [2020-10-28 17:11:45,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 409 to 409. [2020-10-28 17:11:45,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 409 states. [2020-10-28 17:11:45,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 409 states to 409 states and 728 transitions. [2020-10-28 17:11:45,872 INFO L78 Accepts]: Start accepts. Automaton has 409 states and 728 transitions. Word has length 21 [2020-10-28 17:11:45,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 17:11:45,872 INFO L481 AbstractCegarLoop]: Abstraction has 409 states and 728 transitions. [2020-10-28 17:11:45,872 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-28 17:11:45,872 INFO L276 IsEmpty]: Start isEmpty. Operand 409 states and 728 transitions. [2020-10-28 17:11:45,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-10-28 17:11:45,874 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 17:11:45,874 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 17:11:45,874 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-28 17:11:45,874 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 17:11:45,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 17:11:45,875 INFO L82 PathProgramCache]: Analyzing trace with hash -967753477, now seen corresponding path program 1 times [2020-10-28 17:11:45,875 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 17:11:45,875 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1692276182] [2020-10-28 17:11:45,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 17:11:45,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:11:45,897 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:11:45,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:11:45,991 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:11:45,991 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-28 17:11:45,991 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 17:11:45,991 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 100 [2020-10-28 17:11:45,991 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:11:45,992 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:11:45,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:11:45,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-10-28 17:11:45,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 17:11:45,992 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:11:46,060 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 17:11:46,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:11:46,065 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:11:46,070 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:11:46,071 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 17:11:46,071 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:11:46,071 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 17:11:46,071 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:11:46,072 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:11:46,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:11:46,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:11:46,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:11:46,072 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:11:46,079 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 17:11:46,079 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1692276182] [2020-10-28 17:11:46,080 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 17:11:46,080 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-28 17:11:46,080 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [857914722] [2020-10-28 17:11:46,080 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-28 17:11:46,081 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 17:11:46,081 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-28 17:11:46,081 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-28 17:11:46,082 INFO L87 Difference]: Start difference. First operand 409 states and 728 transitions. Second operand 4 states. [2020-10-28 17:11:47,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 17:11:47,090 INFO L93 Difference]: Finished difference Result 651 states and 1151 transitions. [2020-10-28 17:11:47,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-28 17:11:47,091 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 24 [2020-10-28 17:11:47,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 17:11:47,094 INFO L225 Difference]: With dead ends: 651 [2020-10-28 17:11:47,094 INFO L226 Difference]: Without dead ends: 258 [2020-10-28 17:11:47,096 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-28 17:11:47,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 258 states. [2020-10-28 17:11:47,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 258 to 257. [2020-10-28 17:11:47,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 257 states. [2020-10-28 17:11:47,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 257 states and 436 transitions. [2020-10-28 17:11:47,109 INFO L78 Accepts]: Start accepts. Automaton has 257 states and 436 transitions. Word has length 24 [2020-10-28 17:11:47,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 17:11:47,110 INFO L481 AbstractCegarLoop]: Abstraction has 257 states and 436 transitions. [2020-10-28 17:11:47,110 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-28 17:11:47,110 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 436 transitions. [2020-10-28 17:11:47,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-10-28 17:11:47,113 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 17:11:47,113 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 17:11:47,113 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-28 17:11:47,114 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 17:11:47,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 17:11:47,114 INFO L82 PathProgramCache]: Analyzing trace with hash 367925836, now seen corresponding path program 1 times [2020-10-28 17:11:47,114 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 17:11:47,115 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [103251819] [2020-10-28 17:11:47,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 17:11:47,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:11:47,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:11:47,239 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:11:47,241 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-28 17:11:47,241 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:11:47,241 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 99 [2020-10-28 17:11:47,242 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:11:47,242 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:11:47,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:11:47,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-10-28 17:11:47,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-28 17:11:47,243 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:11:47,326 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 17:11:47,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:11:47,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:11:47,342 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:11:47,342 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 17:11:47,342 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:11:47,343 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-28 17:11:47,343 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:11:47,343 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:11:47,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:11:47,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:11:47,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:11:47,344 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:11:47,349 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 17:11:47,349 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [103251819] [2020-10-28 17:11:47,349 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 17:11:47,350 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-28 17:11:47,350 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [725752112] [2020-10-28 17:11:47,350 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-28 17:11:47,350 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 17:11:47,351 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-28 17:11:47,351 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-28 17:11:47,351 INFO L87 Difference]: Start difference. First operand 257 states and 436 transitions. Second operand 4 states. [2020-10-28 17:11:47,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 17:11:47,676 INFO L93 Difference]: Finished difference Result 260 states and 438 transitions. [2020-10-28 17:11:47,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-28 17:11:47,677 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 24 [2020-10-28 17:11:47,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 17:11:47,679 INFO L225 Difference]: With dead ends: 260 [2020-10-28 17:11:47,679 INFO L226 Difference]: Without dead ends: 257 [2020-10-28 17:11:47,680 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-28 17:11:47,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 257 states. [2020-10-28 17:11:47,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 257 to 257. [2020-10-28 17:11:47,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 257 states. [2020-10-28 17:11:47,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 257 states and 428 transitions. [2020-10-28 17:11:47,693 INFO L78 Accepts]: Start accepts. Automaton has 257 states and 428 transitions. Word has length 24 [2020-10-28 17:11:47,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 17:11:47,694 INFO L481 AbstractCegarLoop]: Abstraction has 257 states and 428 transitions. [2020-10-28 17:11:47,694 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-28 17:11:47,694 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 428 transitions. [2020-10-28 17:11:47,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-10-28 17:11:47,695 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 17:11:47,695 INFO L422 BasicCegarLoop]: trace histogram [2, 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] [2020-10-28 17:11:47,696 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-28 17:11:47,696 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 17:11:47,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 17:11:47,696 INFO L82 PathProgramCache]: Analyzing trace with hash -1229904130, now seen corresponding path program 1 times [2020-10-28 17:11:47,697 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 17:11:47,697 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [567388977] [2020-10-28 17:11:47,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 17:11:47,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:11:47,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:11:47,856 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:11:47,857 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-10-28 17:11:47,857 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:11:47,857 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 135 [2020-10-28 17:11:47,857 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:11:47,857 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:11:47,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:11:47,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-10-28 17:11:47,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-28 17:11:47,858 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:11:47,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 17:11:47,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:11:47,967 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:11:47,972 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:11:47,972 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 17:11:47,972 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:11:47,972 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 17:11:47,972 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:11:47,973 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:11:47,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:11:47,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:11:47,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:11:47,974 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:11:47,979 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 17:11:47,980 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [567388977] [2020-10-28 17:11:47,980 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 17:11:47,980 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-28 17:11:47,981 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [246456796] [2020-10-28 17:11:47,981 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-28 17:11:47,981 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 17:11:47,982 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-28 17:11:47,983 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-28 17:11:47,983 INFO L87 Difference]: Start difference. First operand 257 states and 428 transitions. Second operand 4 states. [2020-10-28 17:11:49,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 17:11:49,374 INFO L93 Difference]: Finished difference Result 673 states and 1135 transitions. [2020-10-28 17:11:49,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-28 17:11:49,375 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 27 [2020-10-28 17:11:49,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 17:11:49,380 INFO L225 Difference]: With dead ends: 673 [2020-10-28 17:11:49,380 INFO L226 Difference]: Without dead ends: 428 [2020-10-28 17:11:49,381 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-28 17:11:49,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 428 states. [2020-10-28 17:11:49,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 428 to 416. [2020-10-28 17:11:49,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 416 states. [2020-10-28 17:11:49,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 416 states to 416 states and 632 transitions. [2020-10-28 17:11:49,399 INFO L78 Accepts]: Start accepts. Automaton has 416 states and 632 transitions. Word has length 27 [2020-10-28 17:11:49,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 17:11:49,401 INFO L481 AbstractCegarLoop]: Abstraction has 416 states and 632 transitions. [2020-10-28 17:11:49,401 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-28 17:11:49,401 INFO L276 IsEmpty]: Start isEmpty. Operand 416 states and 632 transitions. [2020-10-28 17:11:49,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-10-28 17:11:49,407 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 17:11:49,407 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 17:11:49,407 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-28 17:11:49,407 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 17:11:49,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 17:11:49,408 INFO L82 PathProgramCache]: Analyzing trace with hash -1202173936, now seen corresponding path program 1 times [2020-10-28 17:11:49,408 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 17:11:49,408 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [951693246] [2020-10-28 17:11:49,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 17:11:49,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:11:49,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:11:49,547 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:11:49,548 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-10-28 17:11:49,548 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:11:49,548 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 105 [2020-10-28 17:11:49,548 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:11:49,548 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:11:49,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:11:49,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 31 [2020-10-28 17:11:49,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 17:11:49,549 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:11:49,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 17:11:49,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:11:49,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:11:49,646 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:11:49,647 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 17:11:49,648 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:11:49,648 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 17:11:49,648 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:11:49,648 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:11:49,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:11:49,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:11:49,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:11:49,649 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:11:49,655 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-28 17:11:49,655 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [951693246] [2020-10-28 17:11:49,655 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 17:11:49,656 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-28 17:11:49,656 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [290735832] [2020-10-28 17:11:49,656 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-28 17:11:49,656 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 17:11:49,663 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-28 17:11:49,663 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-28 17:11:49,663 INFO L87 Difference]: Start difference. First operand 416 states and 632 transitions. Second operand 4 states. [2020-10-28 17:11:49,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 17:11:49,932 INFO L93 Difference]: Finished difference Result 751 states and 1152 transitions. [2020-10-28 17:11:49,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-28 17:11:49,932 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 37 [2020-10-28 17:11:49,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 17:11:49,937 INFO L225 Difference]: With dead ends: 751 [2020-10-28 17:11:49,937 INFO L226 Difference]: Without dead ends: 351 [2020-10-28 17:11:49,938 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-28 17:11:49,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 351 states. [2020-10-28 17:11:49,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 351 to 351. [2020-10-28 17:11:49,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 351 states. [2020-10-28 17:11:49,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 351 states to 351 states and 536 transitions. [2020-10-28 17:11:49,966 INFO L78 Accepts]: Start accepts. Automaton has 351 states and 536 transitions. Word has length 37 [2020-10-28 17:11:49,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 17:11:49,967 INFO L481 AbstractCegarLoop]: Abstraction has 351 states and 536 transitions. [2020-10-28 17:11:49,967 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-28 17:11:49,967 INFO L276 IsEmpty]: Start isEmpty. Operand 351 states and 536 transitions. [2020-10-28 17:11:49,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-10-28 17:11:49,968 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 17:11:49,968 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 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] [2020-10-28 17:11:49,968 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-28 17:11:49,969 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 17:11:49,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 17:11:49,973 INFO L82 PathProgramCache]: Analyzing trace with hash 405651018, now seen corresponding path program 1 times [2020-10-28 17:11:49,973 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 17:11:49,973 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1979328024] [2020-10-28 17:11:49,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 17:11:49,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:11:50,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:11:50,074 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:11:50,075 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-28 17:11:50,075 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:11:50,075 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 80 [2020-10-28 17:11:50,075 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:11:50,075 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:11:50,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:11:50,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 31 [2020-10-28 17:11:50,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-28 17:11:50,076 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:11:50,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 17:11:50,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:11:50,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:11:50,163 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:11:50,163 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 17:11:50,163 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:11:50,164 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-28 17:11:50,164 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:11:50,165 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:11:50,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:11:50,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:11:50,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:11:50,165 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:11:50,181 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-28 17:11:50,181 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1979328024] [2020-10-28 17:11:50,181 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 17:11:50,181 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-28 17:11:50,181 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1066151346] [2020-10-28 17:11:50,182 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-28 17:11:50,182 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 17:11:50,182 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-28 17:11:50,183 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-28 17:11:50,183 INFO L87 Difference]: Start difference. First operand 351 states and 536 transitions. Second operand 4 states. [2020-10-28 17:11:50,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 17:11:50,467 INFO L93 Difference]: Finished difference Result 680 states and 1048 transitions. [2020-10-28 17:11:50,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-28 17:11:50,468 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 38 [2020-10-28 17:11:50,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 17:11:50,470 INFO L225 Difference]: With dead ends: 680 [2020-10-28 17:11:50,470 INFO L226 Difference]: Without dead ends: 345 [2020-10-28 17:11:50,472 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-28 17:11:50,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 345 states. [2020-10-28 17:11:50,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 345 to 345. [2020-10-28 17:11:50,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 345 states. [2020-10-28 17:11:50,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 345 states to 345 states and 516 transitions. [2020-10-28 17:11:50,488 INFO L78 Accepts]: Start accepts. Automaton has 345 states and 516 transitions. Word has length 38 [2020-10-28 17:11:50,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 17:11:50,488 INFO L481 AbstractCegarLoop]: Abstraction has 345 states and 516 transitions. [2020-10-28 17:11:50,488 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-28 17:11:50,489 INFO L276 IsEmpty]: Start isEmpty. Operand 345 states and 516 transitions. [2020-10-28 17:11:50,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-10-28 17:11:50,496 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 17:11:50,497 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 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] [2020-10-28 17:11:50,497 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-28 17:11:50,497 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 17:11:50,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 17:11:50,498 INFO L82 PathProgramCache]: Analyzing trace with hash 1578655914, now seen corresponding path program 1 times [2020-10-28 17:11:50,498 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 17:11:50,498 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [43006540] [2020-10-28 17:11:50,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 17:11:50,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:11:50,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:11:50,662 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:11:50,662 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-28 17:11:50,662 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:11:50,663 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 135 [2020-10-28 17:11:50,663 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:11:50,663 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:11:50,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:11:50,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 31 [2020-10-28 17:11:50,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-28 17:11:50,664 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:11:50,746 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 17:11:50,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:11:50,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:11:50,764 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:11:50,764 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 17:11:50,765 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:11:50,765 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-28 17:11:50,765 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:11:50,765 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:11:50,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:11:50,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:11:50,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:11:50,766 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:11:50,773 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-28 17:11:50,773 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [43006540] [2020-10-28 17:11:50,774 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 17:11:50,774 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-28 17:11:50,774 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [38305693] [2020-10-28 17:11:50,776 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-28 17:11:50,776 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 17:11:50,776 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-28 17:11:50,777 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-28 17:11:50,777 INFO L87 Difference]: Start difference. First operand 345 states and 516 transitions. Second operand 4 states. [2020-10-28 17:11:51,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 17:11:51,782 INFO L93 Difference]: Finished difference Result 388 states and 558 transitions. [2020-10-28 17:11:51,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-28 17:11:51,782 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 42 [2020-10-28 17:11:51,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 17:11:51,786 INFO L225 Difference]: With dead ends: 388 [2020-10-28 17:11:51,786 INFO L226 Difference]: Without dead ends: 350 [2020-10-28 17:11:51,787 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-28 17:11:51,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 350 states. [2020-10-28 17:11:51,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 350 to 345. [2020-10-28 17:11:51,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 345 states. [2020-10-28 17:11:51,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 345 states to 345 states and 480 transitions. [2020-10-28 17:11:51,800 INFO L78 Accepts]: Start accepts. Automaton has 345 states and 480 transitions. Word has length 42 [2020-10-28 17:11:51,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 17:11:51,801 INFO L481 AbstractCegarLoop]: Abstraction has 345 states and 480 transitions. [2020-10-28 17:11:51,801 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-28 17:11:51,801 INFO L276 IsEmpty]: Start isEmpty. Operand 345 states and 480 transitions. [2020-10-28 17:11:51,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-10-28 17:11:51,802 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 17:11:51,802 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 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] [2020-10-28 17:11:51,802 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-28 17:11:51,802 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 17:11:51,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 17:11:51,803 INFO L82 PathProgramCache]: Analyzing trace with hash 1077982197, now seen corresponding path program 1 times [2020-10-28 17:11:51,803 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 17:11:51,803 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1970129279] [2020-10-28 17:11:51,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 17:11:51,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:11:51,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:11:51,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:11:51,992 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:11:51,992 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-28 17:11:51,992 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 17:11:51,992 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 168 [2020-10-28 17:11:51,993 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:11:51,993 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:11:51,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:11:51,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 31 [2020-10-28 17:11:51,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-28 17:11:51,993 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:11:52,067 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 17:11:52,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:11:52,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:11:52,074 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:11:52,075 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 17:11:52,075 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:11:52,075 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 17:11:52,075 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:11:52,075 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:11:52,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:11:52,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:11:52,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:11:52,076 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:11:52,082 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-28 17:11:52,082 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1970129279] [2020-10-28 17:11:52,083 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 17:11:52,083 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-28 17:11:52,083 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [959483958] [2020-10-28 17:11:52,083 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-28 17:11:52,084 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 17:11:52,084 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-28 17:11:52,084 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-28 17:11:52,084 INFO L87 Difference]: Start difference. First operand 345 states and 480 transitions. Second operand 4 states. [2020-10-28 17:11:52,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 17:11:52,330 INFO L93 Difference]: Finished difference Result 655 states and 913 transitions. [2020-10-28 17:11:52,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-28 17:11:52,330 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 43 [2020-10-28 17:11:52,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 17:11:52,334 INFO L225 Difference]: With dead ends: 655 [2020-10-28 17:11:52,334 INFO L226 Difference]: Without dead ends: 326 [2020-10-28 17:11:52,336 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-28 17:11:52,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 326 states. [2020-10-28 17:11:52,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 326 to 326. [2020-10-28 17:11:52,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 326 states. [2020-10-28 17:11:52,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 326 states to 326 states and 449 transitions. [2020-10-28 17:11:52,350 INFO L78 Accepts]: Start accepts. Automaton has 326 states and 449 transitions. Word has length 43 [2020-10-28 17:11:52,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 17:11:52,351 INFO L481 AbstractCegarLoop]: Abstraction has 326 states and 449 transitions. [2020-10-28 17:11:52,351 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-28 17:11:52,351 INFO L276 IsEmpty]: Start isEmpty. Operand 326 states and 449 transitions. [2020-10-28 17:11:52,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-10-28 17:11:52,352 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 17:11:52,352 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 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] [2020-10-28 17:11:52,352 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-28 17:11:52,352 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 17:11:52,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 17:11:52,355 INFO L82 PathProgramCache]: Analyzing trace with hash -441806598, now seen corresponding path program 1 times [2020-10-28 17:11:52,355 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 17:11:52,356 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1569340011] [2020-10-28 17:11:52,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 17:11:52,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:11:52,398 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:11:52,540 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:11:52,540 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-28 17:11:52,541 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:11:52,541 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 154 [2020-10-28 17:11:52,541 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:11:52,541 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:11:52,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:11:52,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 33 [2020-10-28 17:11:52,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 17:11:52,543 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-28 17:11:52,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 17:11:52,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:11:52,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:11:52,658 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:11:52,659 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 17:11:52,659 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:11:52,659 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 17:11:52,659 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:11:52,660 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:11:52,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:11:52,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:11:52,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:11:52,661 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:11:52,670 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-28 17:11:52,671 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1569340011] [2020-10-28 17:11:52,671 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 17:11:52,671 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-28 17:11:52,672 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [876751361] [2020-10-28 17:11:52,672 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-28 17:11:52,672 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 17:11:52,673 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-28 17:11:52,673 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-28 17:11:52,673 INFO L87 Difference]: Start difference. First operand 326 states and 449 transitions. Second operand 4 states. [2020-10-28 17:11:53,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 17:11:53,268 INFO L93 Difference]: Finished difference Result 495 states and 692 transitions. [2020-10-28 17:11:53,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-28 17:11:53,268 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 44 [2020-10-28 17:11:53,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 17:11:53,269 INFO L225 Difference]: With dead ends: 495 [2020-10-28 17:11:53,269 INFO L226 Difference]: Without dead ends: 0 [2020-10-28 17:11:53,270 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-28 17:11:53,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-28 17:11:53,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-28 17:11:53,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-28 17:11:53,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-28 17:11:53,271 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 44 [2020-10-28 17:11:53,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 17:11:53,271 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-28 17:11:53,271 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-28 17:11:53,271 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-28 17:11:53,272 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-28 17:11:53,272 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-28 17:11:53,274 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-28 17:11:53,401 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 83 [2020-10-28 17:11:53,714 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 25 [2020-10-28 17:11:54,052 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 25 [2020-10-28 17:11:54,057 INFO L274 CegarLoopResult]: For program point reach_errorEXIT(line 4) no Hoare annotation was computed. [2020-10-28 17:11:54,057 INFO L277 CegarLoopResult]: At program point reach_errorENTRY(line 4) the Hoare annotation is: true [2020-10-28 17:11:54,057 INFO L274 CegarLoopResult]: For program point reach_errorFINAL(line 4) no Hoare annotation was computed. [2020-10-28 17:11:54,058 INFO L274 CegarLoopResult]: For program point reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-10-28 17:11:54,058 INFO L274 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-28 17:11:54,058 INFO L270 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#t~string5.offset| |old(#t~string5.offset)|) (= ~m_update~0 |old(~m_update~0)|) (= ~m_connect_1~0 |old(~m_connect_1~0)|) (= |old(#length)| |#length|) (= |#t~string6.base| |old(#t~string6.base)|) (= ~m_dataReceived~0 |old(~m_dataReceived~0)|) (= |#t~string6.offset| |old(#t~string6.offset)|) (= ~m_init~0 |old(~m_init~0)|) (= ~m_Accelerometer~0 |old(~m_Accelerometer~0)|) (= |#t~string4.offset| |old(#t~string4.offset)|) (= |old(#valid)| |#valid|) (= ~m_connect_2~0 |old(~m_connect_2~0)|) (= |#t~string5.base| |old(#t~string5.base)|) (= ~m_getValueX~0 |old(~m_getValueX~0)|) (= |#t~string4.base| |old(#t~string4.base)|) (= ~m_getValueY~0 |old(~m_getValueY~0)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|) (= ~m_disconnect~0 |old(~m_disconnect~0)|)) [2020-10-28 17:11:54,058 INFO L274 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-28 17:11:54,058 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-28 17:11:54,058 INFO L277 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-10-28 17:11:54,058 INFO L277 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-28 17:11:54,059 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-28 17:11:54,060 INFO L274 CegarLoopResult]: For program point mainEXIT(lines 18 1257) no Hoare annotation was computed. [2020-10-28 17:11:54,060 INFO L274 CegarLoopResult]: For program point L1093(lines 1093 1095) no Hoare annotation was computed. [2020-10-28 17:11:54,060 INFO L274 CegarLoopResult]: For program point L961(lines 961 963) no Hoare annotation was computed. [2020-10-28 17:11:54,060 INFO L274 CegarLoopResult]: For program point L829(lines 829 840) no Hoare annotation was computed. [2020-10-28 17:11:54,060 INFO L274 CegarLoopResult]: For program point L763(lines 763 778) no Hoare annotation was computed. [2020-10-28 17:11:54,060 INFO L274 CegarLoopResult]: For program point L433(lines 433 435) no Hoare annotation was computed. [2020-10-28 17:11:54,060 INFO L274 CegarLoopResult]: For program point L301(lines 301 303) no Hoare annotation was computed. [2020-10-28 17:11:54,060 INFO L274 CegarLoopResult]: For program point L169(lines 169 180) no Hoare annotation was computed. [2020-10-28 17:11:54,061 INFO L274 CegarLoopResult]: For program point L897(lines 897 899) no Hoare annotation was computed. [2020-10-28 17:11:54,061 INFO L274 CegarLoopResult]: For program point L765(lines 765 776) no Hoare annotation was computed. [2020-10-28 17:11:54,061 INFO L274 CegarLoopResult]: For program point L699(lines 699 714) no Hoare annotation was computed. [2020-10-28 17:11:54,061 INFO L274 CegarLoopResult]: For program point L369(lines 369 371) no Hoare annotation was computed. [2020-10-28 17:11:54,061 INFO L274 CegarLoopResult]: For program point L237(lines 237 239) no Hoare annotation was computed. [2020-10-28 17:11:54,061 INFO L274 CegarLoopResult]: For program point L105(lines 105 107) no Hoare annotation was computed. [2020-10-28 17:11:54,061 INFO L274 CegarLoopResult]: For program point L833(lines 833 835) no Hoare annotation was computed. [2020-10-28 17:11:54,061 INFO L274 CegarLoopResult]: For program point L701(lines 701 712) no Hoare annotation was computed. [2020-10-28 17:11:54,061 INFO L274 CegarLoopResult]: For program point L635(lines 635 650) no Hoare annotation was computed. [2020-10-28 17:11:54,061 INFO L274 CegarLoopResult]: For program point L173(lines 173 175) no Hoare annotation was computed. [2020-10-28 17:11:54,062 INFO L274 CegarLoopResult]: For program point L1231(lines 1231 1246) no Hoare annotation was computed. [2020-10-28 17:11:54,062 INFO L274 CegarLoopResult]: For program point L769(lines 769 771) no Hoare annotation was computed. [2020-10-28 17:11:54,062 INFO L274 CegarLoopResult]: For program point L637(lines 637 648) no Hoare annotation was computed. [2020-10-28 17:11:54,062 INFO L274 CegarLoopResult]: For program point L571(lines 571 586) no Hoare annotation was computed. [2020-10-28 17:11:54,062 INFO L274 CegarLoopResult]: For program point L1233(lines 1233 1244) no Hoare annotation was computed. [2020-10-28 17:11:54,062 INFO L274 CegarLoopResult]: For program point L1167(lines 1167 1182) no Hoare annotation was computed. [2020-10-28 17:11:54,062 INFO L274 CegarLoopResult]: For program point L1035(lines 1035 1050) no Hoare annotation was computed. [2020-10-28 17:11:54,062 INFO L274 CegarLoopResult]: For program point L705(lines 705 707) no Hoare annotation was computed. [2020-10-28 17:11:54,062 INFO L274 CegarLoopResult]: For program point L573(lines 573 584) no Hoare annotation was computed. [2020-10-28 17:11:54,063 INFO L274 CegarLoopResult]: For program point L507(lines 507 522) no Hoare annotation was computed. [2020-10-28 17:11:54,063 INFO L274 CegarLoopResult]: For program point L1169(lines 1169 1180) no Hoare annotation was computed. [2020-10-28 17:11:54,063 INFO L274 CegarLoopResult]: For program point L1103(lines 1103 1118) no Hoare annotation was computed. [2020-10-28 17:11:54,063 INFO L274 CegarLoopResult]: For program point L46(lines 46 65) no Hoare annotation was computed. [2020-10-28 17:11:54,063 INFO L274 CegarLoopResult]: For program point L1037(lines 1037 1048) no Hoare annotation was computed. [2020-10-28 17:11:54,063 INFO L274 CegarLoopResult]: For program point L971(lines 971 986) no Hoare annotation was computed. [2020-10-28 17:11:54,063 INFO L274 CegarLoopResult]: For program point L641(lines 641 643) no Hoare annotation was computed. [2020-10-28 17:11:54,063 INFO L274 CegarLoopResult]: For program point L509(lines 509 520) no Hoare annotation was computed. [2020-10-28 17:11:54,063 INFO L274 CegarLoopResult]: For program point L443(lines 443 458) no Hoare annotation was computed. [2020-10-28 17:11:54,063 INFO L274 CegarLoopResult]: For program point L311(lines 311 326) no Hoare annotation was computed. [2020-10-28 17:11:54,064 INFO L274 CegarLoopResult]: For program point L47(lines 47 62) no Hoare annotation was computed. [2020-10-28 17:11:54,064 INFO L274 CegarLoopResult]: For program point L1237(lines 1237 1239) no Hoare annotation was computed. [2020-10-28 17:11:54,064 INFO L274 CegarLoopResult]: For program point L1105(lines 1105 1116) no Hoare annotation was computed. [2020-10-28 17:11:54,064 INFO L274 CegarLoopResult]: For program point L973(lines 973 984) no Hoare annotation was computed. [2020-10-28 17:11:54,064 INFO L274 CegarLoopResult]: For program point L907(lines 907 922) no Hoare annotation was computed. [2020-10-28 17:11:54,064 INFO L274 CegarLoopResult]: For program point L577(lines 577 579) no Hoare annotation was computed. [2020-10-28 17:11:54,064 INFO L274 CegarLoopResult]: For program point L445(lines 445 456) no Hoare annotation was computed. [2020-10-28 17:11:54,064 INFO L274 CegarLoopResult]: For program point L379(lines 379 394) no Hoare annotation was computed. [2020-10-28 17:11:54,064 INFO L274 CegarLoopResult]: For program point L313(lines 313 324) no Hoare annotation was computed. [2020-10-28 17:11:54,065 INFO L274 CegarLoopResult]: For program point L247(lines 247 262) no Hoare annotation was computed. [2020-10-28 17:11:54,065 INFO L270 CegarLoopResult]: At program point L1238(lines 18 1257) the Hoare annotation is: false [2020-10-28 17:11:54,065 INFO L274 CegarLoopResult]: For program point L115(lines 115 130) no Hoare annotation was computed. [2020-10-28 17:11:54,065 INFO L274 CegarLoopResult]: For program point L49(lines 49 60) no Hoare annotation was computed. [2020-10-28 17:11:54,065 INFO L274 CegarLoopResult]: For program point L1173(lines 1173 1175) no Hoare annotation was computed. [2020-10-28 17:11:54,065 INFO L274 CegarLoopResult]: For program point L1041(lines 1041 1043) no Hoare annotation was computed. [2020-10-28 17:11:54,065 INFO L274 CegarLoopResult]: For program point L909(lines 909 920) no Hoare annotation was computed. [2020-10-28 17:11:54,065 INFO L274 CegarLoopResult]: For program point L843(lines 843 858) no Hoare annotation was computed. [2020-10-28 17:11:54,065 INFO L274 CegarLoopResult]: For program point L513(lines 513 515) no Hoare annotation was computed. [2020-10-28 17:11:54,065 INFO L274 CegarLoopResult]: For program point L381(lines 381 392) no Hoare annotation was computed. [2020-10-28 17:11:54,066 INFO L274 CegarLoopResult]: For program point L249(lines 249 260) no Hoare annotation was computed. [2020-10-28 17:11:54,066 INFO L274 CegarLoopResult]: For program point L183(lines 183 198) no Hoare annotation was computed. [2020-10-28 17:11:54,066 INFO L274 CegarLoopResult]: For program point L117(lines 117 128) no Hoare annotation was computed. [2020-10-28 17:11:54,066 INFO L274 CegarLoopResult]: For program point L1109(lines 1109 1111) no Hoare annotation was computed. [2020-10-28 17:11:54,066 INFO L274 CegarLoopResult]: For program point L977(lines 977 979) no Hoare annotation was computed. [2020-10-28 17:11:54,066 INFO L274 CegarLoopResult]: For program point L845(lines 845 856) no Hoare annotation was computed. [2020-10-28 17:11:54,066 INFO L274 CegarLoopResult]: For program point L779(lines 779 794) no Hoare annotation was computed. [2020-10-28 17:11:54,066 INFO L274 CegarLoopResult]: For program point L449(lines 449 451) no Hoare annotation was computed. [2020-10-28 17:11:54,066 INFO L274 CegarLoopResult]: For program point L317(lines 317 319) no Hoare annotation was computed. [2020-10-28 17:11:54,066 INFO L274 CegarLoopResult]: For program point L185(lines 185 196) no Hoare annotation was computed. [2020-10-28 17:11:54,067 INFO L274 CegarLoopResult]: For program point L53(lines 53 55) no Hoare annotation was computed. [2020-10-28 17:11:54,067 INFO L274 CegarLoopResult]: For program point L913(lines 913 915) no Hoare annotation was computed. [2020-10-28 17:11:54,067 INFO L274 CegarLoopResult]: For program point L781(lines 781 792) no Hoare annotation was computed. [2020-10-28 17:11:54,067 INFO L274 CegarLoopResult]: For program point L715(lines 715 730) no Hoare annotation was computed. [2020-10-28 17:11:54,067 INFO L274 CegarLoopResult]: For program point L385(lines 385 387) no Hoare annotation was computed. [2020-10-28 17:11:54,067 INFO L274 CegarLoopResult]: For program point L253(lines 253 255) no Hoare annotation was computed. [2020-10-28 17:11:54,067 INFO L274 CegarLoopResult]: For program point L121(lines 121 123) no Hoare annotation was computed. [2020-10-28 17:11:54,067 INFO L274 CegarLoopResult]: For program point L849(lines 849 851) no Hoare annotation was computed. [2020-10-28 17:11:54,067 INFO L274 CegarLoopResult]: For program point L717(lines 717 728) no Hoare annotation was computed. [2020-10-28 17:11:54,068 INFO L274 CegarLoopResult]: For program point L651(lines 651 666) no Hoare annotation was computed. [2020-10-28 17:11:54,068 INFO L274 CegarLoopResult]: For program point L189(lines 189 191) no Hoare annotation was computed. [2020-10-28 17:11:54,068 INFO L274 CegarLoopResult]: For program point L785(lines 785 787) no Hoare annotation was computed. [2020-10-28 17:11:54,068 INFO L274 CegarLoopResult]: For program point L653(lines 653 664) no Hoare annotation was computed. [2020-10-28 17:11:54,068 INFO L274 CegarLoopResult]: For program point L587(lines 587 602) no Hoare annotation was computed. [2020-10-28 17:11:54,068 INFO L270 CegarLoopResult]: At program point L1248(lines 34 1252) the Hoare annotation is: (let ((.cse0 (<= 1 main_~this_m_delta~0)) (.cse2 (<= 1 main_~this_m_conn~0)) (.cse1 (= main_~this_m_conn_data_listener~0 0))) (or (and (<= main_~q~0 0) .cse0 .cse1) (and (<= 2 main_~q~0) (= main_~this_m_conn~0 0) .cse0 .cse1 (<= main_~q~0 2)) (and (<= 1 main_~this_m_conn_data_listener~0) (<= 3 main_~q~0) .cse0 .cse2 (<= main_~q~0 3)) (and (<= 4 main_~q~0) .cse0 .cse2 .cse1))) [2020-10-28 17:11:54,068 INFO L274 CegarLoopResult]: For program point L1183(lines 1183 1198) no Hoare annotation was computed. [2020-10-28 17:11:54,069 INFO L274 CegarLoopResult]: For program point L1051(lines 1051 1066) no Hoare annotation was computed. [2020-10-28 17:11:54,069 INFO L274 CegarLoopResult]: For program point L721(lines 721 723) no Hoare annotation was computed. [2020-10-28 17:11:54,069 INFO L274 CegarLoopResult]: For program point L589(lines 589 600) no Hoare annotation was computed. [2020-10-28 17:11:54,069 INFO L274 CegarLoopResult]: For program point L523(lines 523 538) no Hoare annotation was computed. [2020-10-28 17:11:54,069 INFO L274 CegarLoopResult]: For program point L1185(lines 1185 1196) no Hoare annotation was computed. [2020-10-28 17:11:54,069 INFO L274 CegarLoopResult]: For program point L1119(lines 1119 1134) no Hoare annotation was computed. [2020-10-28 17:11:54,069 INFO L274 CegarLoopResult]: For program point L1053(lines 1053 1064) no Hoare annotation was computed. [2020-10-28 17:11:54,069 INFO L274 CegarLoopResult]: For program point L987(lines 987 1002) no Hoare annotation was computed. [2020-10-28 17:11:54,069 INFO L274 CegarLoopResult]: For program point L657(lines 657 659) no Hoare annotation was computed. [2020-10-28 17:11:54,070 INFO L274 CegarLoopResult]: For program point L525(lines 525 536) no Hoare annotation was computed. [2020-10-28 17:11:54,070 INFO L274 CegarLoopResult]: For program point L459(lines 459 474) no Hoare annotation was computed. [2020-10-28 17:11:54,070 INFO L274 CegarLoopResult]: For program point L1121(lines 1121 1132) no Hoare annotation was computed. [2020-10-28 17:11:54,070 INFO L274 CegarLoopResult]: For program point L989(lines 989 1000) no Hoare annotation was computed. [2020-10-28 17:11:54,070 INFO L274 CegarLoopResult]: For program point L923(lines 923 938) no Hoare annotation was computed. [2020-10-28 17:11:54,070 INFO L274 CegarLoopResult]: For program point L593(lines 593 595) no Hoare annotation was computed. [2020-10-28 17:11:54,070 INFO L274 CegarLoopResult]: For program point L461(lines 461 472) no Hoare annotation was computed. [2020-10-28 17:11:54,070 INFO L274 CegarLoopResult]: For program point L395(lines 395 410) no Hoare annotation was computed. [2020-10-28 17:11:54,070 INFO L274 CegarLoopResult]: For program point L263(lines 263 278) no Hoare annotation was computed. [2020-10-28 17:11:54,070 INFO L274 CegarLoopResult]: For program point L131(lines 131 146) no Hoare annotation was computed. [2020-10-28 17:11:54,070 INFO L274 CegarLoopResult]: For program point L330(lines 330 1069) no Hoare annotation was computed. [2020-10-28 17:11:54,071 INFO L274 CegarLoopResult]: For program point L1189(lines 1189 1191) no Hoare annotation was computed. [2020-10-28 17:11:54,071 INFO L274 CegarLoopResult]: For program point L66(lines 66 149) no Hoare annotation was computed. [2020-10-28 17:11:54,073 INFO L274 CegarLoopResult]: For program point L1057(lines 1057 1059) no Hoare annotation was computed. [2020-10-28 17:11:54,073 INFO L274 CegarLoopResult]: For program point L925(lines 925 936) no Hoare annotation was computed. [2020-10-28 17:11:54,073 INFO L274 CegarLoopResult]: For program point L859(lines 859 874) no Hoare annotation was computed. [2020-10-28 17:11:54,073 INFO L274 CegarLoopResult]: For program point L529(lines 529 531) no Hoare annotation was computed. [2020-10-28 17:11:54,073 INFO L274 CegarLoopResult]: For program point L397(lines 397 408) no Hoare annotation was computed. [2020-10-28 17:11:54,073 INFO L274 CegarLoopResult]: For program point L331(lines 331 346) no Hoare annotation was computed. [2020-10-28 17:11:54,073 INFO L274 CegarLoopResult]: For program point L265(lines 265 276) no Hoare annotation was computed. [2020-10-28 17:11:54,073 INFO L274 CegarLoopResult]: For program point L1256(line 1256) no Hoare annotation was computed. [2020-10-28 17:11:54,073 INFO L274 CegarLoopResult]: For program point L199(lines 199 214) no Hoare annotation was computed. [2020-10-28 17:11:54,074 INFO L274 CegarLoopResult]: For program point L133(lines 133 144) no Hoare annotation was computed. [2020-10-28 17:11:54,074 INFO L274 CegarLoopResult]: For program point L67(lines 67 82) no Hoare annotation was computed. [2020-10-28 17:11:54,074 INFO L274 CegarLoopResult]: For program point L1125(lines 1125 1127) no Hoare annotation was computed. [2020-10-28 17:11:54,074 INFO L274 CegarLoopResult]: For program point L993(lines 993 995) no Hoare annotation was computed. [2020-10-28 17:11:54,074 INFO L274 CegarLoopResult]: For program point L861(lines 861 872) no Hoare annotation was computed. [2020-10-28 17:11:54,074 INFO L274 CegarLoopResult]: For program point L795(lines 795 810) no Hoare annotation was computed. [2020-10-28 17:11:54,074 INFO L274 CegarLoopResult]: For program point L465(lines 465 467) no Hoare annotation was computed. [2020-10-28 17:11:54,074 INFO L274 CegarLoopResult]: For program point L333(lines 333 344) no Hoare annotation was computed. [2020-10-28 17:11:54,074 INFO L274 CegarLoopResult]: For program point L201(lines 201 212) no Hoare annotation was computed. [2020-10-28 17:11:54,074 INFO L274 CegarLoopResult]: For program point L69(lines 69 80) no Hoare annotation was computed. [2020-10-28 17:11:54,075 INFO L274 CegarLoopResult]: For program point L929(lines 929 931) no Hoare annotation was computed. [2020-10-28 17:11:54,075 INFO L274 CegarLoopResult]: For program point L797(lines 797 808) no Hoare annotation was computed. [2020-10-28 17:11:54,075 INFO L274 CegarLoopResult]: For program point L731(lines 731 746) no Hoare annotation was computed. [2020-10-28 17:11:54,075 INFO L274 CegarLoopResult]: For program point L401(lines 401 403) no Hoare annotation was computed. [2020-10-28 17:11:54,075 INFO L274 CegarLoopResult]: For program point L269(lines 269 271) no Hoare annotation was computed. [2020-10-28 17:11:54,075 INFO L274 CegarLoopResult]: For program point mainFINAL(lines 18 1257) no Hoare annotation was computed. [2020-10-28 17:11:54,075 INFO L274 CegarLoopResult]: For program point L137(lines 137 139) no Hoare annotation was computed. [2020-10-28 17:11:54,075 INFO L274 CegarLoopResult]: For program point L865(lines 865 867) no Hoare annotation was computed. [2020-10-28 17:11:54,075 INFO L274 CegarLoopResult]: For program point L733(lines 733 744) no Hoare annotation was computed. [2020-10-28 17:11:54,075 INFO L274 CegarLoopResult]: For program point L667(lines 667 682) no Hoare annotation was computed. [2020-10-28 17:11:54,075 INFO L274 CegarLoopResult]: For program point L337(lines 337 339) no Hoare annotation was computed. [2020-10-28 17:11:54,075 INFO L274 CegarLoopResult]: For program point L205(lines 205 207) no Hoare annotation was computed. [2020-10-28 17:11:54,075 INFO L274 CegarLoopResult]: For program point L73(lines 73 75) no Hoare annotation was computed. [2020-10-28 17:11:54,075 INFO L274 CegarLoopResult]: For program point L801(lines 801 803) no Hoare annotation was computed. [2020-10-28 17:11:54,076 INFO L274 CegarLoopResult]: For program point L669(lines 669 680) no Hoare annotation was computed. [2020-10-28 17:11:54,076 INFO L274 CegarLoopResult]: For program point L603(lines 603 618) no Hoare annotation was computed. [2020-10-28 17:11:54,076 INFO L274 CegarLoopResult]: For program point L1199(lines 1199 1214) no Hoare annotation was computed. [2020-10-28 17:11:54,076 INFO L274 CegarLoopResult]: For program point L737(lines 737 739) no Hoare annotation was computed. [2020-10-28 17:11:54,076 INFO L274 CegarLoopResult]: For program point L605(lines 605 616) no Hoare annotation was computed. [2020-10-28 17:11:54,076 INFO L274 CegarLoopResult]: For program point L539(lines 539 554) no Hoare annotation was computed. [2020-10-28 17:11:54,076 INFO L274 CegarLoopResult]: For program point L1201(lines 1201 1212) no Hoare annotation was computed. [2020-10-28 17:11:54,076 INFO L274 CegarLoopResult]: For program point L1135(lines 1135 1150) no Hoare annotation was computed. [2020-10-28 17:11:54,076 INFO L274 CegarLoopResult]: For program point L1003(lines 1003 1018) no Hoare annotation was computed. [2020-10-28 17:11:54,076 INFO L274 CegarLoopResult]: For program point L673(lines 673 675) no Hoare annotation was computed. [2020-10-28 17:11:54,076 INFO L274 CegarLoopResult]: For program point L541(lines 541 552) no Hoare annotation was computed. [2020-10-28 17:11:54,076 INFO L274 CegarLoopResult]: For program point L475(lines 475 490) no Hoare annotation was computed. [2020-10-28 17:11:54,076 INFO L274 CegarLoopResult]: For program point L1070(lines 1070 1249) no Hoare annotation was computed. [2020-10-28 17:11:54,077 INFO L274 CegarLoopResult]: For program point L1137(lines 1137 1148) no Hoare annotation was computed. [2020-10-28 17:11:54,077 INFO L274 CegarLoopResult]: For program point L1071(lines 1071 1086) no Hoare annotation was computed. [2020-10-28 17:11:54,077 INFO L274 CegarLoopResult]: For program point L1005(lines 1005 1016) no Hoare annotation was computed. [2020-10-28 17:11:54,077 INFO L274 CegarLoopResult]: For program point L939(lines 939 954) no Hoare annotation was computed. [2020-10-28 17:11:54,077 INFO L274 CegarLoopResult]: For program point L609(lines 609 611) no Hoare annotation was computed. [2020-10-28 17:11:54,077 INFO L274 CegarLoopResult]: For program point L477(lines 477 488) no Hoare annotation was computed. [2020-10-28 17:11:54,077 INFO L274 CegarLoopResult]: For program point L411(lines 411 426) no Hoare annotation was computed. [2020-10-28 17:11:54,077 INFO L274 CegarLoopResult]: For program point L279(lines 279 294) no Hoare annotation was computed. [2020-10-28 17:11:54,077 INFO L274 CegarLoopResult]: For program point L1205(lines 1205 1207) no Hoare annotation was computed. [2020-10-28 17:11:54,078 INFO L274 CegarLoopResult]: For program point L1073(lines 1073 1084) no Hoare annotation was computed. [2020-10-28 17:11:54,078 INFO L274 CegarLoopResult]: For program point L941(lines 941 952) no Hoare annotation was computed. [2020-10-28 17:11:54,078 INFO L274 CegarLoopResult]: For program point L875(lines 875 890) no Hoare annotation was computed. [2020-10-28 17:11:54,078 INFO L274 CegarLoopResult]: For program point L545(lines 545 547) no Hoare annotation was computed. [2020-10-28 17:11:54,078 INFO L274 CegarLoopResult]: For program point L413(lines 413 424) no Hoare annotation was computed. [2020-10-28 17:11:54,078 INFO L274 CegarLoopResult]: For program point L347(lines 347 362) no Hoare annotation was computed. [2020-10-28 17:11:54,078 INFO L274 CegarLoopResult]: For program point L281(lines 281 292) no Hoare annotation was computed. [2020-10-28 17:11:54,078 INFO L274 CegarLoopResult]: For program point L215(lines 215 230) no Hoare annotation was computed. [2020-10-28 17:11:54,078 INFO L274 CegarLoopResult]: For program point L83(lines 83 98) no Hoare annotation was computed. [2020-10-28 17:11:54,078 INFO L274 CegarLoopResult]: For program point L150(lines 150 329) no Hoare annotation was computed. [2020-10-28 17:11:54,078 INFO L274 CegarLoopResult]: For program point L1141(lines 1141 1143) no Hoare annotation was computed. [2020-10-28 17:11:54,079 INFO L274 CegarLoopResult]: For program point L1009(lines 1009 1011) no Hoare annotation was computed. [2020-10-28 17:11:54,079 INFO L274 CegarLoopResult]: For program point L877(lines 877 888) no Hoare annotation was computed. [2020-10-28 17:11:54,079 INFO L274 CegarLoopResult]: For program point L811(lines 811 826) no Hoare annotation was computed. [2020-10-28 17:11:54,079 INFO L274 CegarLoopResult]: For program point L481(lines 481 483) no Hoare annotation was computed. [2020-10-28 17:11:54,079 INFO L274 CegarLoopResult]: For program point L349(lines 349 360) no Hoare annotation was computed. [2020-10-28 17:11:54,079 INFO L274 CegarLoopResult]: For program point L217(lines 217 228) no Hoare annotation was computed. [2020-10-28 17:11:54,079 INFO L274 CegarLoopResult]: For program point L151(lines 151 166) no Hoare annotation was computed. [2020-10-28 17:11:54,079 INFO L274 CegarLoopResult]: For program point L85(lines 85 96) no Hoare annotation was computed. [2020-10-28 17:11:54,079 INFO L274 CegarLoopResult]: For program point L1077(lines 1077 1079) no Hoare annotation was computed. [2020-10-28 17:11:54,079 INFO L274 CegarLoopResult]: For program point L945(lines 945 947) no Hoare annotation was computed. [2020-10-28 17:11:54,079 INFO L274 CegarLoopResult]: For program point L813(lines 813 824) no Hoare annotation was computed. [2020-10-28 17:11:54,080 INFO L274 CegarLoopResult]: For program point L747(lines 747 762) no Hoare annotation was computed. [2020-10-28 17:11:54,080 INFO L274 CegarLoopResult]: For program point L417(lines 417 419) no Hoare annotation was computed. [2020-10-28 17:11:54,080 INFO L274 CegarLoopResult]: For program point L285(lines 285 287) no Hoare annotation was computed. [2020-10-28 17:11:54,080 INFO L274 CegarLoopResult]: For program point L153(lines 153 164) no Hoare annotation was computed. [2020-10-28 17:11:54,080 INFO L274 CegarLoopResult]: For program point L881(lines 881 883) no Hoare annotation was computed. [2020-10-28 17:11:54,080 INFO L274 CegarLoopResult]: For program point L749(lines 749 760) no Hoare annotation was computed. [2020-10-28 17:11:54,080 INFO L274 CegarLoopResult]: For program point L683(lines 683 698) no Hoare annotation was computed. [2020-10-28 17:11:54,080 INFO L274 CegarLoopResult]: For program point L353(lines 353 355) no Hoare annotation was computed. [2020-10-28 17:11:54,080 INFO L274 CegarLoopResult]: For program point L221(lines 221 223) no Hoare annotation was computed. [2020-10-28 17:11:54,080 INFO L274 CegarLoopResult]: For program point L89(lines 89 91) no Hoare annotation was computed. [2020-10-28 17:11:54,080 INFO L274 CegarLoopResult]: For program point L817(lines 817 819) no Hoare annotation was computed. [2020-10-28 17:11:54,081 INFO L274 CegarLoopResult]: For program point L685(lines 685 696) no Hoare annotation was computed. [2020-10-28 17:11:54,081 INFO L274 CegarLoopResult]: For program point L619(lines 619 634) no Hoare annotation was computed. [2020-10-28 17:11:54,081 INFO L274 CegarLoopResult]: For program point L157(lines 157 159) no Hoare annotation was computed. [2020-10-28 17:11:54,081 INFO L274 CegarLoopResult]: For program point L1215(lines 1215 1230) no Hoare annotation was computed. [2020-10-28 17:11:54,081 INFO L274 CegarLoopResult]: For program point L753(lines 753 755) no Hoare annotation was computed. [2020-10-28 17:11:54,081 INFO L274 CegarLoopResult]: For program point L621(lines 621 632) no Hoare annotation was computed. [2020-10-28 17:11:54,081 INFO L274 CegarLoopResult]: For program point L555(lines 555 570) no Hoare annotation was computed. [2020-10-28 17:11:54,081 INFO L274 CegarLoopResult]: For program point L1217(lines 1217 1228) no Hoare annotation was computed. [2020-10-28 17:11:54,081 INFO L274 CegarLoopResult]: For program point L1151(lines 1151 1166) no Hoare annotation was computed. [2020-10-28 17:11:54,081 INFO L274 CegarLoopResult]: For program point L1019(lines 1019 1034) no Hoare annotation was computed. [2020-10-28 17:11:54,081 INFO L274 CegarLoopResult]: For program point L689(lines 689 691) no Hoare annotation was computed. [2020-10-28 17:11:54,081 INFO L274 CegarLoopResult]: For program point L557(lines 557 568) no Hoare annotation was computed. [2020-10-28 17:11:54,082 INFO L274 CegarLoopResult]: For program point L491(lines 491 506) no Hoare annotation was computed. [2020-10-28 17:11:54,082 INFO L274 CegarLoopResult]: For program point L1153(lines 1153 1164) no Hoare annotation was computed. [2020-10-28 17:11:54,082 INFO L274 CegarLoopResult]: For program point L1087(lines 1087 1102) no Hoare annotation was computed. [2020-10-28 17:11:54,082 INFO L277 CegarLoopResult]: At program point mainENTRY(lines 18 1257) the Hoare annotation is: true [2020-10-28 17:11:54,082 INFO L274 CegarLoopResult]: For program point L1021(lines 1021 1032) no Hoare annotation was computed. [2020-10-28 17:11:54,082 INFO L274 CegarLoopResult]: For program point L955(lines 955 970) no Hoare annotation was computed. [2020-10-28 17:11:54,082 INFO L274 CegarLoopResult]: For program point L625(lines 625 627) no Hoare annotation was computed. [2020-10-28 17:11:54,082 INFO L274 CegarLoopResult]: For program point L493(lines 493 504) no Hoare annotation was computed. [2020-10-28 17:11:54,082 INFO L274 CegarLoopResult]: For program point L427(lines 427 442) no Hoare annotation was computed. [2020-10-28 17:11:54,082 INFO L274 CegarLoopResult]: For program point L295(lines 295 310) no Hoare annotation was computed. [2020-10-28 17:11:54,097 INFO L274 CegarLoopResult]: For program point L1221(lines 1221 1223) no Hoare annotation was computed. [2020-10-28 17:11:54,097 INFO L274 CegarLoopResult]: For program point L1089(lines 1089 1100) no Hoare annotation was computed. [2020-10-28 17:11:54,097 INFO L274 CegarLoopResult]: For program point L957(lines 957 968) no Hoare annotation was computed. [2020-10-28 17:11:54,097 INFO L274 CegarLoopResult]: For program point L891(lines 891 906) no Hoare annotation was computed. [2020-10-28 17:11:54,097 INFO L274 CegarLoopResult]: For program point L561(lines 561 563) no Hoare annotation was computed. [2020-10-28 17:11:54,097 INFO L274 CegarLoopResult]: For program point L429(lines 429 440) no Hoare annotation was computed. [2020-10-28 17:11:54,097 INFO L274 CegarLoopResult]: For program point L363(lines 363 378) no Hoare annotation was computed. [2020-10-28 17:11:54,097 INFO L274 CegarLoopResult]: For program point L297(lines 297 308) no Hoare annotation was computed. [2020-10-28 17:11:54,098 INFO L274 CegarLoopResult]: For program point L231(lines 231 246) no Hoare annotation was computed. [2020-10-28 17:11:54,098 INFO L274 CegarLoopResult]: For program point L99(lines 99 114) no Hoare annotation was computed. [2020-10-28 17:11:54,098 INFO L274 CegarLoopResult]: For program point L1157(lines 1157 1159) no Hoare annotation was computed. [2020-10-28 17:11:54,098 INFO L274 CegarLoopResult]: For program point L1025(lines 1025 1027) no Hoare annotation was computed. [2020-10-28 17:11:54,098 INFO L270 CegarLoopResult]: At program point L34-2(lines 34 1252) the Hoare annotation is: (let ((.cse0 (<= 1 main_~this_m_delta~0)) (.cse2 (<= 1 main_~this_m_conn~0)) (.cse1 (= main_~this_m_conn_data_listener~0 0))) (or (and (<= main_~q~0 0) .cse0 .cse1) (and (<= 2 main_~q~0) (= main_~this_m_conn~0 0) .cse0 .cse1 (<= main_~q~0 2)) (and (<= 1 main_~this_m_conn_data_listener~0) (<= 3 main_~q~0) .cse0 .cse2 (<= main_~q~0 3)) (and (<= 4 main_~q~0) .cse0 .cse2 .cse1))) [2020-10-28 17:11:54,098 INFO L274 CegarLoopResult]: For program point L34-3(lines 34 1252) no Hoare annotation was computed. [2020-10-28 17:11:54,099 INFO L274 CegarLoopResult]: For program point L893(lines 893 904) no Hoare annotation was computed. [2020-10-28 17:11:54,099 INFO L274 CegarLoopResult]: For program point L827(lines 827 842) no Hoare annotation was computed. [2020-10-28 17:11:54,099 INFO L274 CegarLoopResult]: For program point L497(lines 497 499) no Hoare annotation was computed. [2020-10-28 17:11:54,099 INFO L274 CegarLoopResult]: For program point L365(lines 365 376) no Hoare annotation was computed. [2020-10-28 17:11:54,099 INFO L274 CegarLoopResult]: For program point L233(lines 233 244) no Hoare annotation was computed. [2020-10-28 17:11:54,099 INFO L274 CegarLoopResult]: For program point L167(lines 167 182) no Hoare annotation was computed. [2020-10-28 17:11:54,099 INFO L274 CegarLoopResult]: For program point L101(lines 101 112) no Hoare annotation was computed. [2020-10-28 17:11:54,122 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 05:11:54 BoogieIcfgContainer [2020-10-28 17:11:54,122 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-28 17:11:54,124 INFO L168 Benchmark]: Toolchain (without parser) took 16690.14 ms. Allocated memory was 169.9 MB in the beginning and 411.0 MB in the end (delta: 241.2 MB). Free memory was 134.2 MB in the beginning and 368.6 MB in the end (delta: -234.4 MB). Peak memory consumption was 248.3 MB. Max. memory is 8.0 GB. [2020-10-28 17:11:54,125 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 169.9 MB. Free memory is still 141.8 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-28 17:11:54,126 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1367.56 ms. Allocated memory is still 169.9 MB. Free memory was 133.6 MB in the beginning and 62.0 MB in the end (delta: 71.6 MB). Peak memory consumption was 72.0 MB. Max. memory is 8.0 GB. [2020-10-28 17:11:54,127 INFO L168 Benchmark]: Boogie Preprocessor took 261.86 ms. Allocated memory was 169.9 MB in the beginning and 204.5 MB in the end (delta: 34.6 MB). Free memory was 62.0 MB in the beginning and 168.5 MB in the end (delta: -106.5 MB). Peak memory consumption was 17.2 MB. Max. memory is 8.0 GB. [2020-10-28 17:11:54,127 INFO L168 Benchmark]: RCFGBuilder took 1909.20 ms. Allocated memory is still 204.5 MB. Free memory was 168.5 MB in the beginning and 150.9 MB in the end (delta: 17.6 MB). Peak memory consumption was 99.3 MB. Max. memory is 8.0 GB. [2020-10-28 17:11:54,128 INFO L168 Benchmark]: TraceAbstraction took 13139.25 ms. Allocated memory was 204.5 MB in the beginning and 411.0 MB in the end (delta: 206.6 MB). Free memory was 150.4 MB in the beginning and 368.6 MB in the end (delta: -218.2 MB). Peak memory consumption was 229.1 MB. Max. memory is 8.0 GB. [2020-10-28 17:11:54,132 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 169.9 MB. Free memory is still 141.8 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 1367.56 ms. Allocated memory is still 169.9 MB. Free memory was 133.6 MB in the beginning and 62.0 MB in the end (delta: 71.6 MB). Peak memory consumption was 72.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 261.86 ms. Allocated memory was 169.9 MB in the beginning and 204.5 MB in the end (delta: 34.6 MB). Free memory was 62.0 MB in the beginning and 168.5 MB in the end (delta: -106.5 MB). Peak memory consumption was 17.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1909.20 ms. Allocated memory is still 204.5 MB. Free memory was 168.5 MB in the beginning and 150.9 MB in the end (delta: 17.6 MB). Peak memory consumption was 99.3 MB. Max. memory is 8.0 GB. * TraceAbstraction took 13139.25 ms. Allocated memory was 204.5 MB in the beginning and 411.0 MB in the end (delta: 206.6 MB). Free memory was 150.4 MB in the beginning and 368.6 MB in the end (delta: -218.2 MB). Peak memory consumption was 229.1 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 34]: Loop Invariant Derived loop invariant: ((((q <= 0 && 1 <= this_m_delta) && this_m_conn_data_listener == 0) || ((((2 <= q && this_m_conn == 0) && 1 <= this_m_delta) && this_m_conn_data_listener == 0) && q <= 2)) || ((((1 <= this_m_conn_data_listener && 3 <= q) && 1 <= this_m_delta) && 1 <= this_m_conn) && q <= 3)) || (((4 <= q && 1 <= this_m_delta) && 1 <= this_m_conn) && this_m_conn_data_listener == 0) - InvariantResult [Line: 18]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 34]: Loop Invariant Derived loop invariant: ((((q <= 0 && 1 <= this_m_delta) && this_m_conn_data_listener == 0) || ((((2 <= q && this_m_conn == 0) && 1 <= this_m_delta) && this_m_conn_data_listener == 0) && q <= 2)) || ((((1 <= this_m_conn_data_listener && 3 <= q) && 1 <= this_m_delta) && 1 <= this_m_conn) && q <= 3)) || (((4 <= q && 1 <= this_m_delta) && 1 <= this_m_conn) && this_m_conn_data_listener == 0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 246 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 12.2s, OverallIterations: 12, TraceHistogramMax: 3, AutomataDifference: 8.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.7s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 4098 SDtfs, 6741 SDslu, 80 SDs, 0 SdLazy, 2302 SolverSat, 563 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 79 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=429occurred in iteration=3, 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, 12 MinimizatonAttempts, 39 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 8 LocationsWithAnnotation, 19 PreInvPairs, 27 NumberOfFragments, 175 HoareAnnotationTreeSize, 19 FomulaSimplifications, 246 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 8 FomulaSimplificationsInter, 549 FormulaSimplificationTreeSizeReductionInter, 0.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 3.0s InterpolantComputationTime, 345 NumberOfCodeBlocks, 345 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 333 ConstructedInterpolants, 0 QuantifiedInterpolants, 34576 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 PerfectInterpolantSequences, 51/51 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...