/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=DEEPEST --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 [2020-10-27 22:25:32,382 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-27 22:25:32,385 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-27 22:25:32,439 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-27 22:25:32,440 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-27 22:25:32,446 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-27 22:25:32,448 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-27 22:25:32,452 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-27 22:25:32,455 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-27 22:25:32,461 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-27 22:25:32,462 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-27 22:25:32,464 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-27 22:25:32,464 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-27 22:25:32,465 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-27 22:25:32,466 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-27 22:25:32,468 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-27 22:25:32,469 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-27 22:25:32,470 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-27 22:25:32,471 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-27 22:25:32,473 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-27 22:25:32,475 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-27 22:25:32,479 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-27 22:25:32,480 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-27 22:25:32,481 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-27 22:25:32,484 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-27 22:25:32,484 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-27 22:25:32,484 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-27 22:25:32,485 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-27 22:25:32,486 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-27 22:25:32,487 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-27 22:25:32,487 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-27 22:25:32,488 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-27 22:25:32,489 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-27 22:25:32,490 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-27 22:25:32,491 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-27 22:25:32,491 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-27 22:25:32,492 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-27 22:25:32,492 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-27 22:25:32,493 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-27 22:25:32,494 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-27 22:25:32,494 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-27 22:25:32,497 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 [2020-10-27 22:25:32,523 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-27 22:25:32,523 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-27 22:25:32,525 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-27 22:25:32,525 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-27 22:25:32,525 INFO L138 SettingsManager]: * Use SBE=true [2020-10-27 22:25:32,525 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-27 22:25:32,526 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-27 22:25:32,526 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-27 22:25:32,526 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-27 22:25:32,526 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-27 22:25:32,526 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-27 22:25:32,527 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-27 22:25:32,527 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-27 22:25:32,527 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-27 22:25:32,527 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-27 22:25:32,527 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-27 22:25:32,527 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-27 22:25:32,528 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-27 22:25:32,528 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-27 22:25:32,528 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-27 22:25:32,528 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-27 22:25:32,528 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 22:25:32,529 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-27 22:25:32,529 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-27 22:25:32,529 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-27 22:25:32,529 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-27 22:25:32,529 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-27 22:25:32,530 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-27 22:25:32,530 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-27 22:25:32,530 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true;unknown-allowed=true; [2020-10-27 22:25:32,929 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-27 22:25:32,961 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-27 22:25:32,964 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-27 22:25:32,966 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-27 22:25:32,967 INFO L275 PluginConnector]: CDTParser initialized [2020-10-27 22:25:32,968 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/psyco/psyco_accelerometer_1.c [2020-10-27 22:25:33,046 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/63cbb15aa/5818c4cf2e6e4c2dab6889cb5d9ae40a/FLAGa5519dfcb [2020-10-27 22:25:33,965 INFO L306 CDTParser]: Found 1 translation units. [2020-10-27 22:25:33,966 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/psyco/psyco_accelerometer_1.c [2020-10-27 22:25:34,000 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/63cbb15aa/5818c4cf2e6e4c2dab6889cb5d9ae40a/FLAGa5519dfcb [2020-10-27 22:25:34,025 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/63cbb15aa/5818c4cf2e6e4c2dab6889cb5d9ae40a [2020-10-27 22:25:34,028 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-27 22:25:34,035 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-27 22:25:34,037 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-27 22:25:34,037 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-27 22:25:34,044 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-27 22:25:34,045 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 10:25:34" (1/1) ... [2020-10-27 22:25:34,049 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e70f18e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:25:34, skipping insertion in model container [2020-10-27 22:25:34,049 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 10:25:34" (1/1) ... [2020-10-27 22:25:34,057 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-27 22:25:34,159 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-27 22:25:34,921 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 22:25:34,932 INFO L203 MainTranslator]: Completed pre-run [2020-10-27 22:25:35,281 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 22:25:35,298 INFO L208 MainTranslator]: Completed translation [2020-10-27 22:25:35,299 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:25:35 WrapperNode [2020-10-27 22:25:35,299 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-27 22:25:35,301 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-27 22:25:35,301 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-27 22:25:35,302 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-27 22:25:35,317 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:25:35" (1/1) ... [2020-10-27 22:25:35,319 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:25:35" (1/1) ... [2020-10-27 22:25:35,376 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:25:35" (1/1) ... [2020-10-27 22:25:35,376 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:25:35" (1/1) ... [2020-10-27 22:25:35,457 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:25:35" (1/1) ... [2020-10-27 22:25:35,470 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:25:35" (1/1) ... [2020-10-27 22:25:35,507 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:25:35" (1/1) ... [2020-10-27 22:25:35,537 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-27 22:25:35,539 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-27 22:25:35,539 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-27 22:25:35,539 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-27 22:25:35,540 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:25:35" (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 [2020-10-27 22:25:35,670 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-27 22:25:35,670 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-27 22:25:35,670 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-27 22:25:35,671 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-27 22:25:35,671 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-27 22:25:35,672 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-27 22:25:35,672 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-27 22:25:35,672 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-27 22:25:35,672 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-27 22:25:35,672 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-27 22:25:35,673 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-27 22:25:35,673 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-27 22:25:35,674 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-27 22:25:35,674 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-27 22:25:35,674 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-27 22:25:35,675 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-27 22:25:37,485 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-27 22:25:37,486 INFO L298 CfgBuilder]: Removed 21 assume(true) statements. [2020-10-27 22:25:37,488 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 10:25:37 BoogieIcfgContainer [2020-10-27 22:25:37,488 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-27 22:25:37,490 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-27 22:25:37,490 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-27 22:25:37,493 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-27 22:25:37,494 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 10:25:34" (1/3) ... [2020-10-27 22:25:37,495 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@136ad535 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 10:25:37, skipping insertion in model container [2020-10-27 22:25:37,495 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:25:35" (2/3) ... [2020-10-27 22:25:37,495 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@136ad535 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 10:25:37, skipping insertion in model container [2020-10-27 22:25:37,495 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 10:25:37" (3/3) ... [2020-10-27 22:25:37,497 INFO L111 eAbstractionObserver]: Analyzing ICFG psyco_accelerometer_1.c [2020-10-27 22:25:37,508 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-27 22:25:37,514 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-27 22:25:37,527 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-27 22:25:37,555 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-27 22:25:37,556 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-27 22:25:37,556 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-27 22:25:37,556 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-27 22:25:37,556 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-27 22:25:37,556 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-27 22:25:37,557 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-27 22:25:37,557 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-27 22:25:37,600 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states. [2020-10-27 22:25:37,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-27 22:25:37,610 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 22:25:37,610 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 22:25:37,611 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 22:25:37,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 22:25:37,617 INFO L82 PathProgramCache]: Analyzing trace with hash 623082268, now seen corresponding path program 1 times [2020-10-27 22:25:37,626 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 22:25:37,626 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1817795428] [2020-10-27 22:25:37,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 22:25:37,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:25:37,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:25:37,967 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:25:37,968 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-27 22:25:37,968 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:25:37,968 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 197 [2020-10-27 22:25:37,970 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:25:37,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:25:37,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-10-27 22:25:37,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:25:37,971 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-27 22:25:38,121 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 22:25:38,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:25:38,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:25:38,142 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:25:38,142 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:25:38,142 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:25:38,143 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-27 22:25:38,143 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:25:38,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:25:38,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:25:38,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:25:38,144 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:25:38,156 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 22:25:38,156 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1817795428] [2020-10-27 22:25:38,161 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 22:25:38,163 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-27 22:25:38,164 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [24714710] [2020-10-27 22:25:38,173 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-27 22:25:38,174 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 22:25:38,192 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-27 22:25:38,193 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-27 22:25:38,195 INFO L87 Difference]: Start difference. First operand 246 states. Second operand 3 states. [2020-10-27 22:25:38,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 22:25:38,308 INFO L93 Difference]: Finished difference Result 474 states and 922 transitions. [2020-10-27 22:25:38,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-27 22:25:38,311 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 14 [2020-10-27 22:25:38,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 22:25:38,324 INFO L225 Difference]: With dead ends: 474 [2020-10-27 22:25:38,324 INFO L226 Difference]: Without dead ends: 229 [2020-10-27 22:25:38,329 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 [2020-10-27 22:25:38,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 229 states. [2020-10-27 22:25:38,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 229 to 229. [2020-10-27 22:25:38,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 229 states. [2020-10-27 22:25:38,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 398 transitions. [2020-10-27 22:25:38,393 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 398 transitions. Word has length 14 [2020-10-27 22:25:38,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 22:25:38,394 INFO L481 AbstractCegarLoop]: Abstraction has 229 states and 398 transitions. [2020-10-27 22:25:38,394 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-27 22:25:38,394 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 398 transitions. [2020-10-27 22:25:38,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-27 22:25:38,395 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 22:25:38,395 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 22:25:38,396 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-27 22:25:38,396 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 22:25:38,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 22:25:38,397 INFO L82 PathProgramCache]: Analyzing trace with hash 1462267612, now seen corresponding path program 1 times [2020-10-27 22:25:38,399 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 22:25:38,399 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1426281679] [2020-10-27 22:25:38,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 22:25:38,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:25:38,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:25:38,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:25:38,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:25:38,759 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:25:38,759 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-27 22:25:38,759 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 22:25:38,760 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 321 [2020-10-27 22:25:38,761 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:25:38,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:25:38,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 22:25:38,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 22:25:38,761 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 22:25:38,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 22:25:38,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:25:38,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:25:38,858 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:25:38,859 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:25:38,859 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:25:38,859 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 22:25:38,859 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:25:38,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:25:38,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:25:38,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:25:38,860 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:25:38,867 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 22:25:38,868 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1426281679] [2020-10-27 22:25:38,868 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 22:25:38,868 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-27 22:25:38,869 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1776568134] [2020-10-27 22:25:38,870 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-27 22:25:38,870 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 22:25:38,871 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-27 22:25:38,871 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-27 22:25:38,872 INFO L87 Difference]: Start difference. First operand 229 states and 398 transitions. Second operand 4 states. [2020-10-27 22:25:40,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 22:25:40,120 INFO L93 Difference]: Finished difference Result 455 states and 794 transitions. [2020-10-27 22:25:40,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-27 22:25:40,121 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2020-10-27 22:25:40,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 22:25:40,124 INFO L225 Difference]: With dead ends: 455 [2020-10-27 22:25:40,124 INFO L226 Difference]: Without dead ends: 232 [2020-10-27 22:25:40,126 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 [2020-10-27 22:25:40,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 232 states. [2020-10-27 22:25:40,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 232 to 232. [2020-10-27 22:25:40,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 232 states. [2020-10-27 22:25:40,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 401 transitions. [2020-10-27 22:25:40,146 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 401 transitions. Word has length 15 [2020-10-27 22:25:40,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 22:25:40,147 INFO L481 AbstractCegarLoop]: Abstraction has 232 states and 401 transitions. [2020-10-27 22:25:40,147 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-27 22:25:40,147 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 401 transitions. [2020-10-27 22:25:40,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-10-27 22:25:40,148 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 22:25:40,148 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 22:25:40,148 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-27 22:25:40,149 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 22:25:40,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 22:25:40,149 INFO L82 PathProgramCache]: Analyzing trace with hash 1671977369, now seen corresponding path program 1 times [2020-10-27 22:25:40,150 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 22:25:40,150 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [650358664] [2020-10-27 22:25:40,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 22:25:40,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:25:40,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:25:40,208 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:25:40,305 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:25:40,305 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-27 22:25:40,305 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 22:25:40,306 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 134 [2020-10-27 22:25:40,306 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:25:40,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:25:40,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-10-27 22:25:40,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 22:25:40,307 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:25:40,379 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 22:25:40,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:25:40,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:25:40,390 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:25:40,390 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:25:40,390 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:25:40,391 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 22:25:40,391 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:25:40,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:25:40,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:25:40,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:25:40,392 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:25:40,397 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 22:25:40,398 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [650358664] [2020-10-27 22:25:40,398 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 22:25:40,398 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-27 22:25:40,398 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [312341034] [2020-10-27 22:25:40,399 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-27 22:25:40,399 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 22:25:40,399 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-27 22:25:40,401 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-27 22:25:40,401 INFO L87 Difference]: Start difference. First operand 232 states and 401 transitions. Second operand 4 states. [2020-10-27 22:25:40,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 22:25:40,668 INFO L93 Difference]: Finished difference Result 442 states and 775 transitions. [2020-10-27 22:25:40,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-27 22:25:40,668 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 20 [2020-10-27 22:25:40,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 22:25:40,670 INFO L225 Difference]: With dead ends: 442 [2020-10-27 22:25:40,671 INFO L226 Difference]: Without dead ends: 217 [2020-10-27 22:25:40,672 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 [2020-10-27 22:25:40,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2020-10-27 22:25:40,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 217. [2020-10-27 22:25:40,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 217 states. [2020-10-27 22:25:40,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 379 transitions. [2020-10-27 22:25:40,687 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 379 transitions. Word has length 20 [2020-10-27 22:25:40,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 22:25:40,688 INFO L481 AbstractCegarLoop]: Abstraction has 217 states and 379 transitions. [2020-10-27 22:25:40,688 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-27 22:25:40,688 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 379 transitions. [2020-10-27 22:25:40,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-10-27 22:25:40,689 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 22:25:40,689 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] [2020-10-27 22:25:40,689 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-27 22:25:40,690 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 22:25:40,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 22:25:40,690 INFO L82 PathProgramCache]: Analyzing trace with hash 693185343, now seen corresponding path program 1 times [2020-10-27 22:25:40,690 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 22:25:40,691 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1658341300] [2020-10-27 22:25:40,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 22:25:40,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:25:40,713 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:25:40,763 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:25:40,764 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-10-27 22:25:40,764 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:25:40,764 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-10-27 22:25:40,764 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:25:40,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:25:40,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-10-27 22:25:40,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-27 22:25:40,765 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:25:40,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 22:25:40,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:25:40,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:25:40,881 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:25:40,882 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:25:40,882 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:25:40,882 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 22:25:40,882 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:25:40,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:25:40,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:25:40,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:25:40,883 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:25:40,889 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 22:25:40,890 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1658341300] [2020-10-27 22:25:40,890 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 22:25:40,890 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-27 22:25:40,891 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1418910703] [2020-10-27 22:25:40,891 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-27 22:25:40,891 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 22:25:40,892 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-27 22:25:40,892 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-27 22:25:40,892 INFO L87 Difference]: Start difference. First operand 217 states and 379 transitions. Second operand 4 states. [2020-10-27 22:25:42,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 22:25:42,324 INFO L93 Difference]: Finished difference Result 619 states and 1104 transitions. [2020-10-27 22:25:42,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-27 22:25:42,324 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 23 [2020-10-27 22:25:42,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 22:25:42,328 INFO L225 Difference]: With dead ends: 619 [2020-10-27 22:25:42,329 INFO L226 Difference]: Without dead ends: 410 [2020-10-27 22:25:42,330 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 [2020-10-27 22:25:42,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 410 states. [2020-10-27 22:25:42,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 410 to 405. [2020-10-27 22:25:42,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 405 states. [2020-10-27 22:25:42,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 405 states to 405 states and 723 transitions. [2020-10-27 22:25:42,349 INFO L78 Accepts]: Start accepts. Automaton has 405 states and 723 transitions. Word has length 23 [2020-10-27 22:25:42,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 22:25:42,350 INFO L481 AbstractCegarLoop]: Abstraction has 405 states and 723 transitions. [2020-10-27 22:25:42,350 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-27 22:25:42,350 INFO L276 IsEmpty]: Start isEmpty. Operand 405 states and 723 transitions. [2020-10-27 22:25:42,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-10-27 22:25:42,351 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 22:25:42,351 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] [2020-10-27 22:25:42,351 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-27 22:25:42,351 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 22:25:42,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 22:25:42,352 INFO L82 PathProgramCache]: Analyzing trace with hash -967753477, now seen corresponding path program 1 times [2020-10-27 22:25:42,352 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 22:25:42,352 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [716629243] [2020-10-27 22:25:42,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 22:25:42,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:25:42,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:25:42,399 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:25:42,465 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:25:42,465 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-27 22:25:42,465 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 22:25:42,465 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 97 [2020-10-27 22:25:42,466 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:25:42,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:25:42,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-10-27 22:25:42,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 22:25:42,466 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:25:42,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 22:25:42,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:25:42,541 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:25:42,546 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:25:42,546 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:25:42,546 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:25:42,547 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 22:25:42,547 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:25:42,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:25:42,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:25:42,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:25:42,547 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:25:42,554 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 22:25:42,555 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [716629243] [2020-10-27 22:25:42,555 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 22:25:42,555 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-27 22:25:42,555 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1998074851] [2020-10-27 22:25:42,555 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-27 22:25:42,556 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 22:25:42,556 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-27 22:25:42,556 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-27 22:25:42,557 INFO L87 Difference]: Start difference. First operand 405 states and 723 transitions. Second operand 4 states. [2020-10-27 22:25:43,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 22:25:43,675 INFO L93 Difference]: Finished difference Result 647 states and 1146 transitions. [2020-10-27 22:25:43,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-27 22:25:43,676 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 24 [2020-10-27 22:25:43,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 22:25:43,678 INFO L225 Difference]: With dead ends: 647 [2020-10-27 22:25:43,678 INFO L226 Difference]: Without dead ends: 254 [2020-10-27 22:25:43,681 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 [2020-10-27 22:25:43,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2020-10-27 22:25:43,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 253. [2020-10-27 22:25:43,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 253 states. [2020-10-27 22:25:43,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 253 states and 431 transitions. [2020-10-27 22:25:43,695 INFO L78 Accepts]: Start accepts. Automaton has 253 states and 431 transitions. Word has length 24 [2020-10-27 22:25:43,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 22:25:43,695 INFO L481 AbstractCegarLoop]: Abstraction has 253 states and 431 transitions. [2020-10-27 22:25:43,695 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-27 22:25:43,696 INFO L276 IsEmpty]: Start isEmpty. Operand 253 states and 431 transitions. [2020-10-27 22:25:43,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-10-27 22:25:43,696 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 22:25:43,696 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] [2020-10-27 22:25:43,697 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-27 22:25:43,697 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 22:25:43,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 22:25:43,697 INFO L82 PathProgramCache]: Analyzing trace with hash 367925836, now seen corresponding path program 1 times [2020-10-27 22:25:43,698 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 22:25:43,698 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1727725662] [2020-10-27 22:25:43,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 22:25:43,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:25:43,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:25:43,765 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:25:43,765 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-27 22:25:43,766 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:25:43,766 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-10-27 22:25:43,766 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:25:43,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:25:43,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-10-27 22:25:43,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 22:25:43,766 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:25:43,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 22:25:43,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:25:43,840 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:25:43,846 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:25:43,846 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:25:43,846 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:25:43,846 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 22:25:43,846 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:25:43,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:25:43,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:25:43,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:25:43,847 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:25:43,852 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 22:25:43,852 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1727725662] [2020-10-27 22:25:43,852 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 22:25:43,852 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-27 22:25:43,853 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1202137742] [2020-10-27 22:25:43,853 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-27 22:25:43,853 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 22:25:43,854 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-27 22:25:43,854 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-27 22:25:43,854 INFO L87 Difference]: Start difference. First operand 253 states and 431 transitions. Second operand 4 states. [2020-10-27 22:25:44,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 22:25:44,182 INFO L93 Difference]: Finished difference Result 256 states and 433 transitions. [2020-10-27 22:25:44,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-27 22:25:44,183 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 24 [2020-10-27 22:25:44,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 22:25:44,185 INFO L225 Difference]: With dead ends: 256 [2020-10-27 22:25:44,185 INFO L226 Difference]: Without dead ends: 253 [2020-10-27 22:25:44,186 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 [2020-10-27 22:25:44,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 253 states. [2020-10-27 22:25:44,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 253 to 253. [2020-10-27 22:25:44,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 253 states. [2020-10-27 22:25:44,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 253 states and 423 transitions. [2020-10-27 22:25:44,211 INFO L78 Accepts]: Start accepts. Automaton has 253 states and 423 transitions. Word has length 24 [2020-10-27 22:25:44,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 22:25:44,212 INFO L481 AbstractCegarLoop]: Abstraction has 253 states and 423 transitions. [2020-10-27 22:25:44,212 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-27 22:25:44,212 INFO L276 IsEmpty]: Start isEmpty. Operand 253 states and 423 transitions. [2020-10-27 22:25:44,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-10-27 22:25:44,215 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 22:25:44,215 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] [2020-10-27 22:25:44,215 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-27 22:25:44,216 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 22:25:44,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 22:25:44,216 INFO L82 PathProgramCache]: Analyzing trace with hash -1229904130, now seen corresponding path program 1 times [2020-10-27 22:25:44,216 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 22:25:44,217 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [427687361] [2020-10-27 22:25:44,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 22:25:44,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:25:44,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:25:44,388 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:25:44,389 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-10-27 22:25:44,389 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:25:44,389 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 146 [2020-10-27 22:25:44,389 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:25:44,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:25:44,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-10-27 22:25:44,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-27 22:25:44,390 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:25:44,493 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 22:25:44,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:25:44,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:25:44,516 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:25:44,516 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:25:44,516 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:25:44,516 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-27 22:25:44,517 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:25:44,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:25:44,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:25:44,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:25:44,517 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:25:44,522 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 22:25:44,523 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [427687361] [2020-10-27 22:25:44,523 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 22:25:44,523 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-27 22:25:44,524 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1246265195] [2020-10-27 22:25:44,524 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-27 22:25:44,524 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 22:25:44,525 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-27 22:25:44,525 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-27 22:25:44,526 INFO L87 Difference]: Start difference. First operand 253 states and 423 transitions. Second operand 4 states. [2020-10-27 22:25:45,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 22:25:45,880 INFO L93 Difference]: Finished difference Result 669 states and 1130 transitions. [2020-10-27 22:25:45,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-27 22:25:45,882 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 27 [2020-10-27 22:25:45,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 22:25:45,884 INFO L225 Difference]: With dead ends: 669 [2020-10-27 22:25:45,884 INFO L226 Difference]: Without dead ends: 424 [2020-10-27 22:25:45,886 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 [2020-10-27 22:25:45,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 424 states. [2020-10-27 22:25:45,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 424 to 412. [2020-10-27 22:25:45,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 412 states. [2020-10-27 22:25:45,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 412 states to 412 states and 627 transitions. [2020-10-27 22:25:45,905 INFO L78 Accepts]: Start accepts. Automaton has 412 states and 627 transitions. Word has length 27 [2020-10-27 22:25:45,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 22:25:45,907 INFO L481 AbstractCegarLoop]: Abstraction has 412 states and 627 transitions. [2020-10-27 22:25:45,907 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-27 22:25:45,908 INFO L276 IsEmpty]: Start isEmpty. Operand 412 states and 627 transitions. [2020-10-27 22:25:45,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-10-27 22:25:45,918 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 22:25:45,919 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] [2020-10-27 22:25:45,919 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-27 22:25:45,919 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 22:25:45,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 22:25:45,920 INFO L82 PathProgramCache]: Analyzing trace with hash -1202173936, now seen corresponding path program 1 times [2020-10-27 22:25:45,920 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 22:25:45,920 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [489003090] [2020-10-27 22:25:45,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 22:25:45,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:25:45,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:25:46,074 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:25:46,074 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-10-27 22:25:46,074 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:25:46,074 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 118 [2020-10-27 22:25:46,074 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:25:46,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:25:46,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 31 [2020-10-27 22:25:46,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 22:25:46,075 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:25:46,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 22:25:46,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:25:46,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:25:46,169 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:25:46,169 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:25:46,169 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:25:46,170 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 22:25:46,170 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:25:46,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:25:46,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:25:46,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:25:46,170 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:25:46,176 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-27 22:25:46,177 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [489003090] [2020-10-27 22:25:46,177 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 22:25:46,177 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-27 22:25:46,177 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [564043726] [2020-10-27 22:25:46,178 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-27 22:25:46,178 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 22:25:46,179 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-27 22:25:46,179 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-27 22:25:46,180 INFO L87 Difference]: Start difference. First operand 412 states and 627 transitions. Second operand 4 states. [2020-10-27 22:25:46,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 22:25:46,434 INFO L93 Difference]: Finished difference Result 747 states and 1147 transitions. [2020-10-27 22:25:46,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-27 22:25:46,435 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 37 [2020-10-27 22:25:46,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 22:25:46,438 INFO L225 Difference]: With dead ends: 747 [2020-10-27 22:25:46,438 INFO L226 Difference]: Without dead ends: 347 [2020-10-27 22:25:46,439 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 [2020-10-27 22:25:46,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 347 states. [2020-10-27 22:25:46,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 347 to 347. [2020-10-27 22:25:46,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 347 states. [2020-10-27 22:25:46,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 347 states to 347 states and 531 transitions. [2020-10-27 22:25:46,455 INFO L78 Accepts]: Start accepts. Automaton has 347 states and 531 transitions. Word has length 37 [2020-10-27 22:25:46,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 22:25:46,457 INFO L481 AbstractCegarLoop]: Abstraction has 347 states and 531 transitions. [2020-10-27 22:25:46,457 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-27 22:25:46,457 INFO L276 IsEmpty]: Start isEmpty. Operand 347 states and 531 transitions. [2020-10-27 22:25:46,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-10-27 22:25:46,460 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 22:25:46,460 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] [2020-10-27 22:25:46,460 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-27 22:25:46,460 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 22:25:46,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 22:25:46,461 INFO L82 PathProgramCache]: Analyzing trace with hash 405651018, now seen corresponding path program 1 times [2020-10-27 22:25:46,461 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 22:25:46,461 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1925159848] [2020-10-27 22:25:46,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 22:25:46,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:25:46,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:25:46,596 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:25:46,597 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-27 22:25:46,597 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:25:46,597 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 112 [2020-10-27 22:25:46,597 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:25:46,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:25:46,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 31 [2020-10-27 22:25:46,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 22:25:46,598 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:25:46,687 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 22:25:46,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:25:46,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:25:46,697 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:25:46,697 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:25:46,698 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:25:46,698 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 22:25:46,698 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:25:46,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:25:46,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:25:46,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:25:46,698 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:25:46,705 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-27 22:25:46,706 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1925159848] [2020-10-27 22:25:46,706 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 22:25:46,706 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-27 22:25:46,707 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [215503114] [2020-10-27 22:25:46,707 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-27 22:25:46,711 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 22:25:46,711 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-27 22:25:46,712 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-27 22:25:46,712 INFO L87 Difference]: Start difference. First operand 347 states and 531 transitions. Second operand 4 states. [2020-10-27 22:25:46,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 22:25:46,994 INFO L93 Difference]: Finished difference Result 676 states and 1043 transitions. [2020-10-27 22:25:46,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-27 22:25:46,994 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 38 [2020-10-27 22:25:46,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 22:25:46,997 INFO L225 Difference]: With dead ends: 676 [2020-10-27 22:25:46,997 INFO L226 Difference]: Without dead ends: 341 [2020-10-27 22:25:46,999 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 [2020-10-27 22:25:47,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 341 states. [2020-10-27 22:25:47,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 341 to 341. [2020-10-27 22:25:47,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 341 states. [2020-10-27 22:25:47,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 341 states to 341 states and 511 transitions. [2020-10-27 22:25:47,019 INFO L78 Accepts]: Start accepts. Automaton has 341 states and 511 transitions. Word has length 38 [2020-10-27 22:25:47,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 22:25:47,021 INFO L481 AbstractCegarLoop]: Abstraction has 341 states and 511 transitions. [2020-10-27 22:25:47,021 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-27 22:25:47,021 INFO L276 IsEmpty]: Start isEmpty. Operand 341 states and 511 transitions. [2020-10-27 22:25:47,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-10-27 22:25:47,022 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 22:25:47,023 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] [2020-10-27 22:25:47,023 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-27 22:25:47,023 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 22:25:47,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 22:25:47,023 INFO L82 PathProgramCache]: Analyzing trace with hash 1578655914, now seen corresponding path program 1 times [2020-10-27 22:25:47,023 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 22:25:47,024 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [499269785] [2020-10-27 22:25:47,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 22:25:47,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:25:47,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:25:47,188 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:25:47,188 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-27 22:25:47,189 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:25:47,189 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 142 [2020-10-27 22:25:47,189 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:25:47,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:25:47,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 31 [2020-10-27 22:25:47,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-27 22:25:47,189 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:25:47,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 22:25:47,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:25:47,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:25:47,281 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:25:47,281 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:25:47,282 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:25:47,282 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 22:25:47,282 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:25:47,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:25:47,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:25:47,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:25:47,282 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:25:47,290 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-27 22:25:47,290 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [499269785] [2020-10-27 22:25:47,291 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 22:25:47,291 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-27 22:25:47,291 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1150455591] [2020-10-27 22:25:47,292 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-27 22:25:47,292 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 22:25:47,293 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-27 22:25:47,293 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-27 22:25:47,293 INFO L87 Difference]: Start difference. First operand 341 states and 511 transitions. Second operand 4 states. [2020-10-27 22:25:48,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 22:25:48,360 INFO L93 Difference]: Finished difference Result 384 states and 553 transitions. [2020-10-27 22:25:48,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-27 22:25:48,360 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 42 [2020-10-27 22:25:48,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 22:25:48,364 INFO L225 Difference]: With dead ends: 384 [2020-10-27 22:25:48,364 INFO L226 Difference]: Without dead ends: 346 [2020-10-27 22:25:48,365 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 [2020-10-27 22:25:48,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 346 states. [2020-10-27 22:25:48,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 346 to 341. [2020-10-27 22:25:48,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 341 states. [2020-10-27 22:25:48,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 341 states to 341 states and 475 transitions. [2020-10-27 22:25:48,377 INFO L78 Accepts]: Start accepts. Automaton has 341 states and 475 transitions. Word has length 42 [2020-10-27 22:25:48,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 22:25:48,377 INFO L481 AbstractCegarLoop]: Abstraction has 341 states and 475 transitions. [2020-10-27 22:25:48,377 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-27 22:25:48,377 INFO L276 IsEmpty]: Start isEmpty. Operand 341 states and 475 transitions. [2020-10-27 22:25:48,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-10-27 22:25:48,379 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 22:25:48,379 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] [2020-10-27 22:25:48,379 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-27 22:25:48,379 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 22:25:48,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 22:25:48,380 INFO L82 PathProgramCache]: Analyzing trace with hash 1077982197, now seen corresponding path program 1 times [2020-10-27 22:25:48,380 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 22:25:48,380 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1628841760] [2020-10-27 22:25:48,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 22:25:48,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:25:48,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:25:48,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:25:48,654 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:25:48,654 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-27 22:25:48,655 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 22:25:48,655 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 243 [2020-10-27 22:25:48,655 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:25:48,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:25:48,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 31 [2020-10-27 22:25:48,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 22:25:48,655 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:25:48,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 22:25:48,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:25:48,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:25:48,764 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:25:48,764 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:25:48,765 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:25:48,765 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-27 22:25:48,765 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:25:48,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:25:48,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:25:48,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:25:48,765 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:25:48,772 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-27 22:25:48,772 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1628841760] [2020-10-27 22:25:48,773 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 22:25:48,773 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-27 22:25:48,773 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [995101692] [2020-10-27 22:25:48,773 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-27 22:25:48,773 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 22:25:48,776 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-27 22:25:48,776 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-27 22:25:48,776 INFO L87 Difference]: Start difference. First operand 341 states and 475 transitions. Second operand 4 states. [2020-10-27 22:25:49,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 22:25:49,001 INFO L93 Difference]: Finished difference Result 651 states and 908 transitions. [2020-10-27 22:25:49,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-27 22:25:49,001 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 43 [2020-10-27 22:25:49,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 22:25:49,004 INFO L225 Difference]: With dead ends: 651 [2020-10-27 22:25:49,004 INFO L226 Difference]: Without dead ends: 322 [2020-10-27 22:25:49,005 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 [2020-10-27 22:25:49,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 322 states. [2020-10-27 22:25:49,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 322 to 322. [2020-10-27 22:25:49,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 322 states. [2020-10-27 22:25:49,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 322 states to 322 states and 444 transitions. [2020-10-27 22:25:49,017 INFO L78 Accepts]: Start accepts. Automaton has 322 states and 444 transitions. Word has length 43 [2020-10-27 22:25:49,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 22:25:49,017 INFO L481 AbstractCegarLoop]: Abstraction has 322 states and 444 transitions. [2020-10-27 22:25:49,017 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-27 22:25:49,017 INFO L276 IsEmpty]: Start isEmpty. Operand 322 states and 444 transitions. [2020-10-27 22:25:49,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-10-27 22:25:49,018 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 22:25:49,018 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] [2020-10-27 22:25:49,018 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-27 22:25:49,019 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 22:25:49,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 22:25:49,019 INFO L82 PathProgramCache]: Analyzing trace with hash -441806598, now seen corresponding path program 1 times [2020-10-27 22:25:49,019 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 22:25:49,020 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1725454719] [2020-10-27 22:25:49,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 22:25:49,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:25:49,048 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:25:49,117 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:25:49,117 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-27 22:25:49,117 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:25:49,117 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 80 [2020-10-27 22:25:49,117 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:25:49,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:25:49,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 33 [2020-10-27 22:25:49,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 22:25:49,118 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:25:49,184 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 22:25:49,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:25:49,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:25:49,192 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:25:49,192 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:25:49,193 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:25:49,193 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 22:25:49,193 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:25:49,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:25:49,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:25:49,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:25:49,193 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:25:49,199 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-27 22:25:49,199 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1725454719] [2020-10-27 22:25:49,199 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 22:25:49,199 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-27 22:25:49,200 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [34822967] [2020-10-27 22:25:49,200 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-27 22:25:49,200 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 22:25:49,200 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-27 22:25:49,201 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-27 22:25:49,201 INFO L87 Difference]: Start difference. First operand 322 states and 444 transitions. Second operand 4 states. [2020-10-27 22:25:49,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 22:25:49,796 INFO L93 Difference]: Finished difference Result 491 states and 687 transitions. [2020-10-27 22:25:49,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-27 22:25:49,797 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 44 [2020-10-27 22:25:49,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 22:25:49,797 INFO L225 Difference]: With dead ends: 491 [2020-10-27 22:25:49,797 INFO L226 Difference]: Without dead ends: 0 [2020-10-27 22:25:49,799 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 [2020-10-27 22:25:49,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-27 22:25:49,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-27 22:25:49,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-27 22:25:49,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-27 22:25:49,799 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 44 [2020-10-27 22:25:49,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 22:25:49,799 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-27 22:25:49,800 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-27 22:25:49,800 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-27 22:25:49,800 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-27 22:25:49,800 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-27 22:25:49,802 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-27 22:25:50,204 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 25 [2020-10-27 22:25:50,564 WARN L193 SmtUtils]: Spent 302.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 25 [2020-10-27 22:25:50,569 INFO L274 CegarLoopResult]: For program point reach_errorEXIT(line 4) no Hoare annotation was computed. [2020-10-27 22:25:50,569 INFO L277 CegarLoopResult]: At program point reach_errorENTRY(line 4) the Hoare annotation is: true [2020-10-27 22:25:50,569 INFO L274 CegarLoopResult]: For program point reach_errorFINAL(line 4) no Hoare annotation was computed. [2020-10-27 22:25:50,569 INFO L274 CegarLoopResult]: For program point reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-10-27 22:25:50,569 INFO L274 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-27 22:25:50,569 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)|)) [2020-10-27 22:25:50,570 INFO L274 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-27 22:25:50,570 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-27 22:25:50,570 INFO L277 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-10-27 22:25:50,570 INFO L277 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-27 22:25:50,570 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-27 22:25:50,570 INFO L274 CegarLoopResult]: For program point mainEXIT(lines 18 1257) no Hoare annotation was computed. [2020-10-27 22:25:50,570 INFO L274 CegarLoopResult]: For program point L1093(lines 1093 1095) no Hoare annotation was computed. [2020-10-27 22:25:50,570 INFO L274 CegarLoopResult]: For program point L961(lines 961 963) no Hoare annotation was computed. [2020-10-27 22:25:50,570 INFO L274 CegarLoopResult]: For program point L829(lines 829 840) no Hoare annotation was computed. [2020-10-27 22:25:50,570 INFO L274 CegarLoopResult]: For program point L763(lines 763 778) no Hoare annotation was computed. [2020-10-27 22:25:50,571 INFO L274 CegarLoopResult]: For program point L433(lines 433 435) no Hoare annotation was computed. [2020-10-27 22:25:50,571 INFO L274 CegarLoopResult]: For program point L301(lines 301 303) no Hoare annotation was computed. [2020-10-27 22:25:50,571 INFO L274 CegarLoopResult]: For program point L169(lines 169 180) no Hoare annotation was computed. [2020-10-27 22:25:50,571 INFO L274 CegarLoopResult]: For program point L897(lines 897 899) no Hoare annotation was computed. [2020-10-27 22:25:50,571 INFO L274 CegarLoopResult]: For program point L765(lines 765 776) no Hoare annotation was computed. [2020-10-27 22:25:50,571 INFO L274 CegarLoopResult]: For program point L699(lines 699 714) no Hoare annotation was computed. [2020-10-27 22:25:50,571 INFO L274 CegarLoopResult]: For program point L369(lines 369 371) no Hoare annotation was computed. [2020-10-27 22:25:50,572 INFO L274 CegarLoopResult]: For program point L237(lines 237 239) no Hoare annotation was computed. [2020-10-27 22:25:50,572 INFO L274 CegarLoopResult]: For program point L105(lines 105 107) no Hoare annotation was computed. [2020-10-27 22:25:50,572 INFO L274 CegarLoopResult]: For program point L833(lines 833 835) no Hoare annotation was computed. [2020-10-27 22:25:50,572 INFO L274 CegarLoopResult]: For program point L701(lines 701 712) no Hoare annotation was computed. [2020-10-27 22:25:50,572 INFO L274 CegarLoopResult]: For program point L635(lines 635 650) no Hoare annotation was computed. [2020-10-27 22:25:50,572 INFO L274 CegarLoopResult]: For program point L173(lines 173 175) no Hoare annotation was computed. [2020-10-27 22:25:50,572 INFO L274 CegarLoopResult]: For program point L1231(lines 1231 1246) no Hoare annotation was computed. [2020-10-27 22:25:50,572 INFO L274 CegarLoopResult]: For program point L769(lines 769 771) no Hoare annotation was computed. [2020-10-27 22:25:50,573 INFO L274 CegarLoopResult]: For program point L637(lines 637 648) no Hoare annotation was computed. [2020-10-27 22:25:50,573 INFO L274 CegarLoopResult]: For program point L571(lines 571 586) no Hoare annotation was computed. [2020-10-27 22:25:50,573 INFO L274 CegarLoopResult]: For program point L1233(lines 1233 1244) no Hoare annotation was computed. [2020-10-27 22:25:50,573 INFO L274 CegarLoopResult]: For program point L1167(lines 1167 1182) no Hoare annotation was computed. [2020-10-27 22:25:50,573 INFO L274 CegarLoopResult]: For program point L1035(lines 1035 1050) no Hoare annotation was computed. [2020-10-27 22:25:50,573 INFO L274 CegarLoopResult]: For program point L705(lines 705 707) no Hoare annotation was computed. [2020-10-27 22:25:50,573 INFO L274 CegarLoopResult]: For program point L573(lines 573 584) no Hoare annotation was computed. [2020-10-27 22:25:50,573 INFO L274 CegarLoopResult]: For program point L507(lines 507 522) no Hoare annotation was computed. [2020-10-27 22:25:50,574 INFO L274 CegarLoopResult]: For program point L1169(lines 1169 1180) no Hoare annotation was computed. [2020-10-27 22:25:50,574 INFO L274 CegarLoopResult]: For program point L1103(lines 1103 1118) no Hoare annotation was computed. [2020-10-27 22:25:50,574 INFO L274 CegarLoopResult]: For program point L46(lines 46 65) no Hoare annotation was computed. [2020-10-27 22:25:50,574 INFO L274 CegarLoopResult]: For program point L1037(lines 1037 1048) no Hoare annotation was computed. [2020-10-27 22:25:50,574 INFO L274 CegarLoopResult]: For program point L971(lines 971 986) no Hoare annotation was computed. [2020-10-27 22:25:50,574 INFO L274 CegarLoopResult]: For program point L641(lines 641 643) no Hoare annotation was computed. [2020-10-27 22:25:50,574 INFO L274 CegarLoopResult]: For program point L509(lines 509 520) no Hoare annotation was computed. [2020-10-27 22:25:50,574 INFO L274 CegarLoopResult]: For program point L443(lines 443 458) no Hoare annotation was computed. [2020-10-27 22:25:50,574 INFO L274 CegarLoopResult]: For program point L311(lines 311 326) no Hoare annotation was computed. [2020-10-27 22:25:50,575 INFO L274 CegarLoopResult]: For program point L47(lines 47 62) no Hoare annotation was computed. [2020-10-27 22:25:50,575 INFO L274 CegarLoopResult]: For program point L1237(lines 1237 1239) no Hoare annotation was computed. [2020-10-27 22:25:50,575 INFO L274 CegarLoopResult]: For program point L1105(lines 1105 1116) no Hoare annotation was computed. [2020-10-27 22:25:50,575 INFO L274 CegarLoopResult]: For program point L973(lines 973 984) no Hoare annotation was computed. [2020-10-27 22:25:50,575 INFO L274 CegarLoopResult]: For program point L907(lines 907 922) no Hoare annotation was computed. [2020-10-27 22:25:50,575 INFO L274 CegarLoopResult]: For program point L577(lines 577 579) no Hoare annotation was computed. [2020-10-27 22:25:50,575 INFO L274 CegarLoopResult]: For program point L445(lines 445 456) no Hoare annotation was computed. [2020-10-27 22:25:50,575 INFO L274 CegarLoopResult]: For program point L379(lines 379 394) no Hoare annotation was computed. [2020-10-27 22:25:50,576 INFO L274 CegarLoopResult]: For program point L313(lines 313 324) no Hoare annotation was computed. [2020-10-27 22:25:50,576 INFO L274 CegarLoopResult]: For program point L247(lines 247 262) no Hoare annotation was computed. [2020-10-27 22:25:50,576 INFO L270 CegarLoopResult]: At program point L1238(lines 18 1257) the Hoare annotation is: false [2020-10-27 22:25:50,576 INFO L274 CegarLoopResult]: For program point L115(lines 115 130) no Hoare annotation was computed. [2020-10-27 22:25:50,576 INFO L274 CegarLoopResult]: For program point L49(lines 49 60) no Hoare annotation was computed. [2020-10-27 22:25:50,576 INFO L274 CegarLoopResult]: For program point L1173(lines 1173 1175) no Hoare annotation was computed. [2020-10-27 22:25:50,576 INFO L274 CegarLoopResult]: For program point L1041(lines 1041 1043) no Hoare annotation was computed. [2020-10-27 22:25:50,576 INFO L274 CegarLoopResult]: For program point L909(lines 909 920) no Hoare annotation was computed. [2020-10-27 22:25:50,577 INFO L274 CegarLoopResult]: For program point L843(lines 843 858) no Hoare annotation was computed. [2020-10-27 22:25:50,577 INFO L274 CegarLoopResult]: For program point L513(lines 513 515) no Hoare annotation was computed. [2020-10-27 22:25:50,577 INFO L274 CegarLoopResult]: For program point L381(lines 381 392) no Hoare annotation was computed. [2020-10-27 22:25:50,577 INFO L274 CegarLoopResult]: For program point L249(lines 249 260) no Hoare annotation was computed. [2020-10-27 22:25:50,577 INFO L274 CegarLoopResult]: For program point L183(lines 183 198) no Hoare annotation was computed. [2020-10-27 22:25:50,577 INFO L274 CegarLoopResult]: For program point L117(lines 117 128) no Hoare annotation was computed. [2020-10-27 22:25:50,577 INFO L274 CegarLoopResult]: For program point L1109(lines 1109 1111) no Hoare annotation was computed. [2020-10-27 22:25:50,577 INFO L274 CegarLoopResult]: For program point L977(lines 977 979) no Hoare annotation was computed. [2020-10-27 22:25:50,577 INFO L274 CegarLoopResult]: For program point L845(lines 845 856) no Hoare annotation was computed. [2020-10-27 22:25:50,578 INFO L274 CegarLoopResult]: For program point L779(lines 779 794) no Hoare annotation was computed. [2020-10-27 22:25:50,578 INFO L274 CegarLoopResult]: For program point L449(lines 449 451) no Hoare annotation was computed. [2020-10-27 22:25:50,578 INFO L274 CegarLoopResult]: For program point L317(lines 317 319) no Hoare annotation was computed. [2020-10-27 22:25:50,578 INFO L274 CegarLoopResult]: For program point L185(lines 185 196) no Hoare annotation was computed. [2020-10-27 22:25:50,578 INFO L274 CegarLoopResult]: For program point L53(lines 53 55) no Hoare annotation was computed. [2020-10-27 22:25:50,578 INFO L274 CegarLoopResult]: For program point L913(lines 913 915) no Hoare annotation was computed. [2020-10-27 22:25:50,578 INFO L274 CegarLoopResult]: For program point L781(lines 781 792) no Hoare annotation was computed. [2020-10-27 22:25:50,578 INFO L274 CegarLoopResult]: For program point L715(lines 715 730) no Hoare annotation was computed. [2020-10-27 22:25:50,578 INFO L274 CegarLoopResult]: For program point L385(lines 385 387) no Hoare annotation was computed. [2020-10-27 22:25:50,579 INFO L274 CegarLoopResult]: For program point L253(lines 253 255) no Hoare annotation was computed. [2020-10-27 22:25:50,579 INFO L274 CegarLoopResult]: For program point L121(lines 121 123) no Hoare annotation was computed. [2020-10-27 22:25:50,579 INFO L274 CegarLoopResult]: For program point L849(lines 849 851) no Hoare annotation was computed. [2020-10-27 22:25:50,579 INFO L274 CegarLoopResult]: For program point L717(lines 717 728) no Hoare annotation was computed. [2020-10-27 22:25:50,579 INFO L274 CegarLoopResult]: For program point L651(lines 651 666) no Hoare annotation was computed. [2020-10-27 22:25:50,579 INFO L274 CegarLoopResult]: For program point L189(lines 189 191) no Hoare annotation was computed. [2020-10-27 22:25:50,579 INFO L274 CegarLoopResult]: For program point L785(lines 785 787) no Hoare annotation was computed. [2020-10-27 22:25:50,579 INFO L274 CegarLoopResult]: For program point L653(lines 653 664) no Hoare annotation was computed. [2020-10-27 22:25:50,579 INFO L274 CegarLoopResult]: For program point L587(lines 587 602) no Hoare annotation was computed. [2020-10-27 22:25:50,580 INFO L270 CegarLoopResult]: At program point L1248(lines 34 1252) the Hoare annotation is: (let ((.cse0 (= main_~this_m_conn~0 0)) (.cse2 (= main_~this_m_conn_data_listener~0 0)) (.cse1 (<= 1 main_~this_m_delta~0)) (.cse3 (<= 1 main_~this_m_conn~0))) (or (and (<= 2 main_~q~0) .cse0 .cse1 .cse2 (<= main_~q~0 2)) (and (= main_~q~0 0) .cse0 .cse1 .cse2) (and (<= 4 main_~q~0) .cse1 .cse3 .cse2) (and (<= 1 main_~this_m_conn_data_listener~0) (<= 3 main_~q~0) .cse1 .cse3 (<= main_~q~0 3)))) [2020-10-27 22:25:50,580 INFO L274 CegarLoopResult]: For program point L1183(lines 1183 1198) no Hoare annotation was computed. [2020-10-27 22:25:50,580 INFO L274 CegarLoopResult]: For program point L1051(lines 1051 1066) no Hoare annotation was computed. [2020-10-27 22:25:50,580 INFO L274 CegarLoopResult]: For program point L721(lines 721 723) no Hoare annotation was computed. [2020-10-27 22:25:50,580 INFO L274 CegarLoopResult]: For program point L589(lines 589 600) no Hoare annotation was computed. [2020-10-27 22:25:50,580 INFO L274 CegarLoopResult]: For program point L523(lines 523 538) no Hoare annotation was computed. [2020-10-27 22:25:50,580 INFO L274 CegarLoopResult]: For program point L1185(lines 1185 1196) no Hoare annotation was computed. [2020-10-27 22:25:50,580 INFO L274 CegarLoopResult]: For program point L1119(lines 1119 1134) no Hoare annotation was computed. [2020-10-27 22:25:50,581 INFO L274 CegarLoopResult]: For program point L1053(lines 1053 1064) no Hoare annotation was computed. [2020-10-27 22:25:50,581 INFO L274 CegarLoopResult]: For program point L987(lines 987 1002) no Hoare annotation was computed. [2020-10-27 22:25:50,581 INFO L274 CegarLoopResult]: For program point L657(lines 657 659) no Hoare annotation was computed. [2020-10-27 22:25:50,581 INFO L274 CegarLoopResult]: For program point L525(lines 525 536) no Hoare annotation was computed. [2020-10-27 22:25:50,581 INFO L274 CegarLoopResult]: For program point L459(lines 459 474) no Hoare annotation was computed. [2020-10-27 22:25:50,581 INFO L274 CegarLoopResult]: For program point L1121(lines 1121 1132) no Hoare annotation was computed. [2020-10-27 22:25:50,581 INFO L274 CegarLoopResult]: For program point L989(lines 989 1000) no Hoare annotation was computed. [2020-10-27 22:25:50,581 INFO L274 CegarLoopResult]: For program point L923(lines 923 938) no Hoare annotation was computed. [2020-10-27 22:25:50,581 INFO L274 CegarLoopResult]: For program point L593(lines 593 595) no Hoare annotation was computed. [2020-10-27 22:25:50,582 INFO L274 CegarLoopResult]: For program point L461(lines 461 472) no Hoare annotation was computed. [2020-10-27 22:25:50,582 INFO L274 CegarLoopResult]: For program point L395(lines 395 410) no Hoare annotation was computed. [2020-10-27 22:25:50,582 INFO L274 CegarLoopResult]: For program point L263(lines 263 278) no Hoare annotation was computed. [2020-10-27 22:25:50,582 INFO L274 CegarLoopResult]: For program point L131(lines 131 146) no Hoare annotation was computed. [2020-10-27 22:25:50,582 INFO L274 CegarLoopResult]: For program point L330(lines 330 1069) no Hoare annotation was computed. [2020-10-27 22:25:50,582 INFO L274 CegarLoopResult]: For program point L1189(lines 1189 1191) no Hoare annotation was computed. [2020-10-27 22:25:50,582 INFO L274 CegarLoopResult]: For program point L66(lines 66 149) no Hoare annotation was computed. [2020-10-27 22:25:50,582 INFO L274 CegarLoopResult]: For program point L1057(lines 1057 1059) no Hoare annotation was computed. [2020-10-27 22:25:50,582 INFO L274 CegarLoopResult]: For program point L925(lines 925 936) no Hoare annotation was computed. [2020-10-27 22:25:50,582 INFO L274 CegarLoopResult]: For program point L859(lines 859 874) no Hoare annotation was computed. [2020-10-27 22:25:50,583 INFO L274 CegarLoopResult]: For program point L529(lines 529 531) no Hoare annotation was computed. [2020-10-27 22:25:50,583 INFO L274 CegarLoopResult]: For program point L397(lines 397 408) no Hoare annotation was computed. [2020-10-27 22:25:50,583 INFO L274 CegarLoopResult]: For program point L331(lines 331 346) no Hoare annotation was computed. [2020-10-27 22:25:50,583 INFO L274 CegarLoopResult]: For program point L265(lines 265 276) no Hoare annotation was computed. [2020-10-27 22:25:50,583 INFO L274 CegarLoopResult]: For program point L1256(line 1256) no Hoare annotation was computed. [2020-10-27 22:25:50,583 INFO L274 CegarLoopResult]: For program point L199(lines 199 214) no Hoare annotation was computed. [2020-10-27 22:25:50,583 INFO L274 CegarLoopResult]: For program point L133(lines 133 144) no Hoare annotation was computed. [2020-10-27 22:25:50,583 INFO L274 CegarLoopResult]: For program point L67(lines 67 82) no Hoare annotation was computed. [2020-10-27 22:25:50,583 INFO L274 CegarLoopResult]: For program point L1125(lines 1125 1127) no Hoare annotation was computed. [2020-10-27 22:25:50,583 INFO L274 CegarLoopResult]: For program point L993(lines 993 995) no Hoare annotation was computed. [2020-10-27 22:25:50,584 INFO L274 CegarLoopResult]: For program point L861(lines 861 872) no Hoare annotation was computed. [2020-10-27 22:25:50,584 INFO L274 CegarLoopResult]: For program point L795(lines 795 810) no Hoare annotation was computed. [2020-10-27 22:25:50,584 INFO L274 CegarLoopResult]: For program point L465(lines 465 467) no Hoare annotation was computed. [2020-10-27 22:25:50,584 INFO L274 CegarLoopResult]: For program point L333(lines 333 344) no Hoare annotation was computed. [2020-10-27 22:25:50,584 INFO L274 CegarLoopResult]: For program point L201(lines 201 212) no Hoare annotation was computed. [2020-10-27 22:25:50,584 INFO L274 CegarLoopResult]: For program point L69(lines 69 80) no Hoare annotation was computed. [2020-10-27 22:25:50,584 INFO L274 CegarLoopResult]: For program point L929(lines 929 931) no Hoare annotation was computed. [2020-10-27 22:25:50,584 INFO L274 CegarLoopResult]: For program point L797(lines 797 808) no Hoare annotation was computed. [2020-10-27 22:25:50,584 INFO L274 CegarLoopResult]: For program point L731(lines 731 746) no Hoare annotation was computed. [2020-10-27 22:25:50,584 INFO L274 CegarLoopResult]: For program point L401(lines 401 403) no Hoare annotation was computed. [2020-10-27 22:25:50,585 INFO L274 CegarLoopResult]: For program point L269(lines 269 271) no Hoare annotation was computed. [2020-10-27 22:25:50,585 INFO L274 CegarLoopResult]: For program point mainFINAL(lines 18 1257) no Hoare annotation was computed. [2020-10-27 22:25:50,585 INFO L274 CegarLoopResult]: For program point L137(lines 137 139) no Hoare annotation was computed. [2020-10-27 22:25:50,585 INFO L274 CegarLoopResult]: For program point L865(lines 865 867) no Hoare annotation was computed. [2020-10-27 22:25:50,585 INFO L274 CegarLoopResult]: For program point L733(lines 733 744) no Hoare annotation was computed. [2020-10-27 22:25:50,585 INFO L274 CegarLoopResult]: For program point L667(lines 667 682) no Hoare annotation was computed. [2020-10-27 22:25:50,585 INFO L274 CegarLoopResult]: For program point L337(lines 337 339) no Hoare annotation was computed. [2020-10-27 22:25:50,586 INFO L274 CegarLoopResult]: For program point L205(lines 205 207) no Hoare annotation was computed. [2020-10-27 22:25:50,586 INFO L274 CegarLoopResult]: For program point L73(lines 73 75) no Hoare annotation was computed. [2020-10-27 22:25:50,586 INFO L274 CegarLoopResult]: For program point L801(lines 801 803) no Hoare annotation was computed. [2020-10-27 22:25:50,586 INFO L274 CegarLoopResult]: For program point L669(lines 669 680) no Hoare annotation was computed. [2020-10-27 22:25:50,586 INFO L274 CegarLoopResult]: For program point L603(lines 603 618) no Hoare annotation was computed. [2020-10-27 22:25:50,586 INFO L274 CegarLoopResult]: For program point L1199(lines 1199 1214) no Hoare annotation was computed. [2020-10-27 22:25:50,586 INFO L274 CegarLoopResult]: For program point L737(lines 737 739) no Hoare annotation was computed. [2020-10-27 22:25:50,586 INFO L274 CegarLoopResult]: For program point L605(lines 605 616) no Hoare annotation was computed. [2020-10-27 22:25:50,586 INFO L274 CegarLoopResult]: For program point L539(lines 539 554) no Hoare annotation was computed. [2020-10-27 22:25:50,587 INFO L274 CegarLoopResult]: For program point L1201(lines 1201 1212) no Hoare annotation was computed. [2020-10-27 22:25:50,587 INFO L274 CegarLoopResult]: For program point L1135(lines 1135 1150) no Hoare annotation was computed. [2020-10-27 22:25:50,587 INFO L274 CegarLoopResult]: For program point L1003(lines 1003 1018) no Hoare annotation was computed. [2020-10-27 22:25:50,587 INFO L274 CegarLoopResult]: For program point L673(lines 673 675) no Hoare annotation was computed. [2020-10-27 22:25:50,587 INFO L274 CegarLoopResult]: For program point L541(lines 541 552) no Hoare annotation was computed. [2020-10-27 22:25:50,587 INFO L274 CegarLoopResult]: For program point L475(lines 475 490) no Hoare annotation was computed. [2020-10-27 22:25:50,587 INFO L274 CegarLoopResult]: For program point L1070(lines 1070 1249) no Hoare annotation was computed. [2020-10-27 22:25:50,587 INFO L274 CegarLoopResult]: For program point L1137(lines 1137 1148) no Hoare annotation was computed. [2020-10-27 22:25:50,587 INFO L274 CegarLoopResult]: For program point L1071(lines 1071 1086) no Hoare annotation was computed. [2020-10-27 22:25:50,587 INFO L274 CegarLoopResult]: For program point L1005(lines 1005 1016) no Hoare annotation was computed. [2020-10-27 22:25:50,588 INFO L274 CegarLoopResult]: For program point L939(lines 939 954) no Hoare annotation was computed. [2020-10-27 22:25:50,588 INFO L274 CegarLoopResult]: For program point L609(lines 609 611) no Hoare annotation was computed. [2020-10-27 22:25:50,588 INFO L274 CegarLoopResult]: For program point L477(lines 477 488) no Hoare annotation was computed. [2020-10-27 22:25:50,588 INFO L274 CegarLoopResult]: For program point L411(lines 411 426) no Hoare annotation was computed. [2020-10-27 22:25:50,588 INFO L274 CegarLoopResult]: For program point L279(lines 279 294) no Hoare annotation was computed. [2020-10-27 22:25:50,588 INFO L274 CegarLoopResult]: For program point L1205(lines 1205 1207) no Hoare annotation was computed. [2020-10-27 22:25:50,588 INFO L274 CegarLoopResult]: For program point L1073(lines 1073 1084) no Hoare annotation was computed. [2020-10-27 22:25:50,588 INFO L274 CegarLoopResult]: For program point L941(lines 941 952) no Hoare annotation was computed. [2020-10-27 22:25:50,589 INFO L274 CegarLoopResult]: For program point L875(lines 875 890) no Hoare annotation was computed. [2020-10-27 22:25:50,589 INFO L274 CegarLoopResult]: For program point L545(lines 545 547) no Hoare annotation was computed. [2020-10-27 22:25:50,589 INFO L274 CegarLoopResult]: For program point L413(lines 413 424) no Hoare annotation was computed. [2020-10-27 22:25:50,589 INFO L274 CegarLoopResult]: For program point L347(lines 347 362) no Hoare annotation was computed. [2020-10-27 22:25:50,589 INFO L274 CegarLoopResult]: For program point L281(lines 281 292) no Hoare annotation was computed. [2020-10-27 22:25:50,589 INFO L274 CegarLoopResult]: For program point L215(lines 215 230) no Hoare annotation was computed. [2020-10-27 22:25:50,589 INFO L274 CegarLoopResult]: For program point L83(lines 83 98) no Hoare annotation was computed. [2020-10-27 22:25:50,589 INFO L274 CegarLoopResult]: For program point L150(lines 150 329) no Hoare annotation was computed. [2020-10-27 22:25:50,589 INFO L274 CegarLoopResult]: For program point L1141(lines 1141 1143) no Hoare annotation was computed. [2020-10-27 22:25:50,590 INFO L274 CegarLoopResult]: For program point L1009(lines 1009 1011) no Hoare annotation was computed. [2020-10-27 22:25:50,590 INFO L274 CegarLoopResult]: For program point L877(lines 877 888) no Hoare annotation was computed. [2020-10-27 22:25:50,590 INFO L274 CegarLoopResult]: For program point L811(lines 811 826) no Hoare annotation was computed. [2020-10-27 22:25:50,590 INFO L274 CegarLoopResult]: For program point L481(lines 481 483) no Hoare annotation was computed. [2020-10-27 22:25:50,590 INFO L274 CegarLoopResult]: For program point L349(lines 349 360) no Hoare annotation was computed. [2020-10-27 22:25:50,590 INFO L274 CegarLoopResult]: For program point L217(lines 217 228) no Hoare annotation was computed. [2020-10-27 22:25:50,590 INFO L274 CegarLoopResult]: For program point L151(lines 151 166) no Hoare annotation was computed. [2020-10-27 22:25:50,590 INFO L274 CegarLoopResult]: For program point L85(lines 85 96) no Hoare annotation was computed. [2020-10-27 22:25:50,590 INFO L274 CegarLoopResult]: For program point L1077(lines 1077 1079) no Hoare annotation was computed. [2020-10-27 22:25:50,590 INFO L274 CegarLoopResult]: For program point L945(lines 945 947) no Hoare annotation was computed. [2020-10-27 22:25:50,591 INFO L274 CegarLoopResult]: For program point L813(lines 813 824) no Hoare annotation was computed. [2020-10-27 22:25:50,591 INFO L274 CegarLoopResult]: For program point L747(lines 747 762) no Hoare annotation was computed. [2020-10-27 22:25:50,591 INFO L274 CegarLoopResult]: For program point L417(lines 417 419) no Hoare annotation was computed. [2020-10-27 22:25:50,591 INFO L274 CegarLoopResult]: For program point L285(lines 285 287) no Hoare annotation was computed. [2020-10-27 22:25:50,591 INFO L274 CegarLoopResult]: For program point L153(lines 153 164) no Hoare annotation was computed. [2020-10-27 22:25:50,591 INFO L274 CegarLoopResult]: For program point L881(lines 881 883) no Hoare annotation was computed. [2020-10-27 22:25:50,591 INFO L274 CegarLoopResult]: For program point L749(lines 749 760) no Hoare annotation was computed. [2020-10-27 22:25:50,591 INFO L274 CegarLoopResult]: For program point L683(lines 683 698) no Hoare annotation was computed. [2020-10-27 22:25:50,591 INFO L274 CegarLoopResult]: For program point L353(lines 353 355) no Hoare annotation was computed. [2020-10-27 22:25:50,592 INFO L274 CegarLoopResult]: For program point L221(lines 221 223) no Hoare annotation was computed. [2020-10-27 22:25:50,592 INFO L274 CegarLoopResult]: For program point L89(lines 89 91) no Hoare annotation was computed. [2020-10-27 22:25:50,592 INFO L274 CegarLoopResult]: For program point L817(lines 817 819) no Hoare annotation was computed. [2020-10-27 22:25:50,592 INFO L274 CegarLoopResult]: For program point L685(lines 685 696) no Hoare annotation was computed. [2020-10-27 22:25:50,592 INFO L274 CegarLoopResult]: For program point L619(lines 619 634) no Hoare annotation was computed. [2020-10-27 22:25:50,592 INFO L274 CegarLoopResult]: For program point L157(lines 157 159) no Hoare annotation was computed. [2020-10-27 22:25:50,592 INFO L274 CegarLoopResult]: For program point L1215(lines 1215 1230) no Hoare annotation was computed. [2020-10-27 22:25:50,592 INFO L274 CegarLoopResult]: For program point L753(lines 753 755) no Hoare annotation was computed. [2020-10-27 22:25:50,592 INFO L274 CegarLoopResult]: For program point L621(lines 621 632) no Hoare annotation was computed. [2020-10-27 22:25:50,592 INFO L274 CegarLoopResult]: For program point L555(lines 555 570) no Hoare annotation was computed. [2020-10-27 22:25:50,592 INFO L274 CegarLoopResult]: For program point L1217(lines 1217 1228) no Hoare annotation was computed. [2020-10-27 22:25:50,593 INFO L274 CegarLoopResult]: For program point L1151(lines 1151 1166) no Hoare annotation was computed. [2020-10-27 22:25:50,593 INFO L274 CegarLoopResult]: For program point L1019(lines 1019 1034) no Hoare annotation was computed. [2020-10-27 22:25:50,593 INFO L274 CegarLoopResult]: For program point L689(lines 689 691) no Hoare annotation was computed. [2020-10-27 22:25:50,593 INFO L274 CegarLoopResult]: For program point L557(lines 557 568) no Hoare annotation was computed. [2020-10-27 22:25:50,593 INFO L274 CegarLoopResult]: For program point L491(lines 491 506) no Hoare annotation was computed. [2020-10-27 22:25:50,593 INFO L274 CegarLoopResult]: For program point L1153(lines 1153 1164) no Hoare annotation was computed. [2020-10-27 22:25:50,593 INFO L274 CegarLoopResult]: For program point L1087(lines 1087 1102) no Hoare annotation was computed. [2020-10-27 22:25:50,593 INFO L277 CegarLoopResult]: At program point mainENTRY(lines 18 1257) the Hoare annotation is: true [2020-10-27 22:25:50,593 INFO L274 CegarLoopResult]: For program point L1021(lines 1021 1032) no Hoare annotation was computed. [2020-10-27 22:25:50,594 INFO L274 CegarLoopResult]: For program point L955(lines 955 970) no Hoare annotation was computed. [2020-10-27 22:25:50,594 INFO L274 CegarLoopResult]: For program point L625(lines 625 627) no Hoare annotation was computed. [2020-10-27 22:25:50,594 INFO L274 CegarLoopResult]: For program point L493(lines 493 504) no Hoare annotation was computed. [2020-10-27 22:25:50,594 INFO L274 CegarLoopResult]: For program point L427(lines 427 442) no Hoare annotation was computed. [2020-10-27 22:25:50,594 INFO L274 CegarLoopResult]: For program point L295(lines 295 310) no Hoare annotation was computed. [2020-10-27 22:25:50,594 INFO L274 CegarLoopResult]: For program point L1221(lines 1221 1223) no Hoare annotation was computed. [2020-10-27 22:25:50,594 INFO L274 CegarLoopResult]: For program point L1089(lines 1089 1100) no Hoare annotation was computed. [2020-10-27 22:25:50,594 INFO L274 CegarLoopResult]: For program point L957(lines 957 968) no Hoare annotation was computed. [2020-10-27 22:25:50,594 INFO L274 CegarLoopResult]: For program point L891(lines 891 906) no Hoare annotation was computed. [2020-10-27 22:25:50,594 INFO L274 CegarLoopResult]: For program point L561(lines 561 563) no Hoare annotation was computed. [2020-10-27 22:25:50,594 INFO L274 CegarLoopResult]: For program point L429(lines 429 440) no Hoare annotation was computed. [2020-10-27 22:25:50,595 INFO L274 CegarLoopResult]: For program point L363(lines 363 378) no Hoare annotation was computed. [2020-10-27 22:25:50,595 INFO L274 CegarLoopResult]: For program point L297(lines 297 308) no Hoare annotation was computed. [2020-10-27 22:25:50,595 INFO L274 CegarLoopResult]: For program point L231(lines 231 246) no Hoare annotation was computed. [2020-10-27 22:25:50,595 INFO L274 CegarLoopResult]: For program point L99(lines 99 114) no Hoare annotation was computed. [2020-10-27 22:25:50,595 INFO L274 CegarLoopResult]: For program point L1157(lines 1157 1159) no Hoare annotation was computed. [2020-10-27 22:25:50,595 INFO L274 CegarLoopResult]: For program point L1025(lines 1025 1027) no Hoare annotation was computed. [2020-10-27 22:25:50,595 INFO L270 CegarLoopResult]: At program point L34-2(lines 34 1252) the Hoare annotation is: (let ((.cse0 (= main_~this_m_conn~0 0)) (.cse2 (= main_~this_m_conn_data_listener~0 0)) (.cse1 (<= 1 main_~this_m_delta~0)) (.cse3 (<= 1 main_~this_m_conn~0))) (or (and (<= 2 main_~q~0) .cse0 .cse1 .cse2 (<= main_~q~0 2)) (and (= main_~q~0 0) .cse0 .cse1 .cse2) (and (<= 4 main_~q~0) .cse1 .cse3 .cse2) (and (<= 1 main_~this_m_conn_data_listener~0) (<= 3 main_~q~0) .cse1 .cse3 (<= main_~q~0 3)))) [2020-10-27 22:25:50,595 INFO L274 CegarLoopResult]: For program point L34-3(lines 34 1252) no Hoare annotation was computed. [2020-10-27 22:25:50,596 INFO L274 CegarLoopResult]: For program point L893(lines 893 904) no Hoare annotation was computed. [2020-10-27 22:25:50,596 INFO L274 CegarLoopResult]: For program point L827(lines 827 842) no Hoare annotation was computed. [2020-10-27 22:25:50,596 INFO L274 CegarLoopResult]: For program point L497(lines 497 499) no Hoare annotation was computed. [2020-10-27 22:25:50,596 INFO L274 CegarLoopResult]: For program point L365(lines 365 376) no Hoare annotation was computed. [2020-10-27 22:25:50,596 INFO L274 CegarLoopResult]: For program point L233(lines 233 244) no Hoare annotation was computed. [2020-10-27 22:25:50,596 INFO L274 CegarLoopResult]: For program point L167(lines 167 182) no Hoare annotation was computed. [2020-10-27 22:25:50,596 INFO L274 CegarLoopResult]: For program point L101(lines 101 112) no Hoare annotation was computed. [2020-10-27 22:25:50,618 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.10 10:25:50 BoogieIcfgContainer [2020-10-27 22:25:50,618 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-27 22:25:50,620 INFO L168 Benchmark]: Toolchain (without parser) took 16589.17 ms. Allocated memory was 125.8 MB in the beginning and 383.8 MB in the end (delta: 257.9 MB). Free memory was 91.4 MB in the beginning and 328.7 MB in the end (delta: -237.3 MB). Peak memory consumption was 194.6 MB. Max. memory is 8.0 GB. [2020-10-27 22:25:50,620 INFO L168 Benchmark]: CDTParser took 0.53 ms. Allocated memory is still 125.8 MB. Free memory is still 87.7 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-27 22:25:50,625 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1263.01 ms. Allocated memory was 125.8 MB in the beginning and 157.3 MB in the end (delta: 31.5 MB). Free memory was 90.8 MB in the beginning and 92.5 MB in the end (delta: -1.7 MB). Peak memory consumption was 40.8 MB. Max. memory is 8.0 GB. [2020-10-27 22:25:50,626 INFO L168 Benchmark]: Boogie Preprocessor took 236.91 ms. Allocated memory is still 157.3 MB. Free memory was 92.0 MB in the beginning and 78.3 MB in the end (delta: 13.6 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. [2020-10-27 22:25:50,627 INFO L168 Benchmark]: RCFGBuilder took 1949.14 ms. Allocated memory was 157.3 MB in the beginning and 221.2 MB in the end (delta: 64.0 MB). Free memory was 78.3 MB in the beginning and 100.7 MB in the end (delta: -22.4 MB). Peak memory consumption was 47.4 MB. Max. memory is 8.0 GB. [2020-10-27 22:25:50,628 INFO L168 Benchmark]: TraceAbstraction took 13127.91 ms. Allocated memory was 221.2 MB in the beginning and 383.8 MB in the end (delta: 162.5 MB). Free memory was 100.2 MB in the beginning and 328.7 MB in the end (delta: -228.5 MB). Peak memory consumption was 107.5 MB. Max. memory is 8.0 GB. [2020-10-27 22:25:50,631 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.53 ms. Allocated memory is still 125.8 MB. Free memory is still 87.7 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 1263.01 ms. Allocated memory was 125.8 MB in the beginning and 157.3 MB in the end (delta: 31.5 MB). Free memory was 90.8 MB in the beginning and 92.5 MB in the end (delta: -1.7 MB). Peak memory consumption was 40.8 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 236.91 ms. Allocated memory is still 157.3 MB. Free memory was 92.0 MB in the beginning and 78.3 MB in the end (delta: 13.6 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1949.14 ms. Allocated memory was 157.3 MB in the beginning and 221.2 MB in the end (delta: 64.0 MB). Free memory was 78.3 MB in the beginning and 100.7 MB in the end (delta: -22.4 MB). Peak memory consumption was 47.4 MB. Max. memory is 8.0 GB. * TraceAbstraction took 13127.91 ms. Allocated memory was 221.2 MB in the beginning and 383.8 MB in the end (delta: 162.5 MB). Free memory was 100.2 MB in the beginning and 328.7 MB in the end (delta: -228.5 MB). Peak memory consumption was 107.5 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: ((((((2 <= q && this_m_conn == 0) && 1 <= this_m_delta) && this_m_conn_data_listener == 0) && q <= 2) || (((q == 0 && this_m_conn == 0) && 1 <= this_m_delta) && this_m_conn_data_listener == 0)) || (((4 <= q && 1 <= this_m_delta) && 1 <= this_m_conn) && this_m_conn_data_listener == 0)) || ((((1 <= this_m_conn_data_listener && 3 <= q) && 1 <= this_m_delta) && 1 <= this_m_conn) && q <= 3) - InvariantResult [Line: 18]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 34]: Loop Invariant Derived loop invariant: ((((((2 <= q && this_m_conn == 0) && 1 <= this_m_delta) && this_m_conn_data_listener == 0) && q <= 2) || (((q == 0 && this_m_conn == 0) && 1 <= this_m_delta) && this_m_conn_data_listener == 0)) || (((4 <= q && 1 <= this_m_delta) && 1 <= this_m_conn) && this_m_conn_data_listener == 0)) || ((((1 <= this_m_conn_data_listener && 3 <= q) && 1 <= this_m_delta) && 1 <= this_m_conn) && q <= 3) - 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: 4077 SDtfs, 6666 SDslu, 80 SDs, 0 SdLazy, 2267 SolverSat, 557 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 80 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=412occurred in iteration=7, 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, 23 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 8 LocationsWithAnnotation, 19 PreInvPairs, 27 NumberOfFragments, 181 HoareAnnotationTreeSize, 19 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 8 FomulaSimplificationsInter, 549 FormulaSimplificationTreeSizeReductionInter, 0.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 3.0s InterpolantComputationTime, 351 NumberOfCodeBlocks, 351 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 339 ConstructedInterpolants, 0 QuantifiedInterpolants, 35296 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 PerfectInterpolantSequences, 53/53 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...