/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=SHALLOWEST --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/reducercommutativity/max10-1.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-27 04:10:36,472 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-27 04:10:36,475 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-27 04:10:36,528 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-27 04:10:36,529 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-27 04:10:36,535 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-27 04:10:36,538 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-27 04:10:36,542 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-27 04:10:36,546 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-27 04:10:36,554 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-27 04:10:36,556 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-27 04:10:36,557 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-27 04:10:36,558 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-27 04:10:36,561 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-27 04:10:36,565 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-27 04:10:36,568 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-27 04:10:36,569 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-27 04:10:36,574 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-27 04:10:36,582 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-27 04:10:36,590 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-27 04:10:36,595 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-27 04:10:36,596 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-27 04:10:36,598 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-27 04:10:36,601 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-27 04:10:36,620 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-27 04:10:36,620 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-27 04:10:36,621 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-27 04:10:36,622 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-27 04:10:36,625 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-27 04:10:36,627 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-27 04:10:36,627 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-27 04:10:36,628 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-27 04:10:36,629 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-27 04:10:36,630 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-27 04:10:36,631 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-27 04:10:36,631 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-27 04:10:36,632 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-27 04:10:36,632 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-27 04:10:36,633 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-27 04:10:36,634 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-27 04:10:36,635 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-27 04:10:36,636 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 04:10:36,668 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-27 04:10:36,668 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-27 04:10:36,670 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-27 04:10:36,670 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-27 04:10:36,670 INFO L138 SettingsManager]: * Use SBE=true [2020-10-27 04:10:36,671 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-27 04:10:36,671 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-27 04:10:36,671 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-27 04:10:36,671 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-27 04:10:36,672 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-27 04:10:36,672 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-27 04:10:36,672 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-27 04:10:36,672 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-27 04:10:36,672 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-27 04:10:36,673 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-27 04:10:36,673 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-27 04:10:36,673 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-27 04:10:36,673 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-27 04:10:36,674 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-27 04:10:36,674 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-27 04:10:36,674 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-27 04:10:36,674 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 04:10:36,675 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-27 04:10:36,675 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-27 04:10:36,675 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-27 04:10:36,675 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-27 04:10:36,675 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-27 04:10:36,676 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-27 04:10:36,676 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-27 04:10:36,676 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true;unknown-allowed=true; [2020-10-27 04:10:37,044 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-27 04:10:37,086 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-27 04:10:37,090 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-27 04:10:37,091 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-27 04:10:37,092 INFO L275 PluginConnector]: CDTParser initialized [2020-10-27 04:10:37,097 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/reducercommutativity/max10-1.i [2020-10-27 04:10:37,175 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ab5331c4a/a57a731f76a44db4b76fca3dbe94928d/FLAGee20c22f5 [2020-10-27 04:10:37,937 INFO L306 CDTParser]: Found 1 translation units. [2020-10-27 04:10:37,938 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/reducercommutativity/max10-1.i [2020-10-27 04:10:37,953 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ab5331c4a/a57a731f76a44db4b76fca3dbe94928d/FLAGee20c22f5 [2020-10-27 04:10:38,283 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ab5331c4a/a57a731f76a44db4b76fca3dbe94928d [2020-10-27 04:10:38,286 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-27 04:10:38,296 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-27 04:10:38,300 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-27 04:10:38,300 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-27 04:10:38,305 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-27 04:10:38,305 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 04:10:38" (1/1) ... [2020-10-27 04:10:38,310 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d2f7196 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 04:10:38, skipping insertion in model container [2020-10-27 04:10:38,310 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 04:10:38" (1/1) ... [2020-10-27 04:10:38,319 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-27 04:10:38,345 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-27 04:10:38,505 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 04:10:38,514 INFO L203 MainTranslator]: Completed pre-run [2020-10-27 04:10:38,540 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 04:10:38,563 INFO L208 MainTranslator]: Completed translation [2020-10-27 04:10:38,564 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 04:10:38 WrapperNode [2020-10-27 04:10:38,564 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-27 04:10:38,565 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-27 04:10:38,565 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-27 04:10:38,565 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-27 04:10:38,577 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 04:10:38" (1/1) ... [2020-10-27 04:10:38,578 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 04:10:38" (1/1) ... [2020-10-27 04:10:38,586 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 04:10:38" (1/1) ... [2020-10-27 04:10:38,587 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 04:10:38" (1/1) ... [2020-10-27 04:10:38,596 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 04:10:38" (1/1) ... [2020-10-27 04:10:38,602 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 04:10:38" (1/1) ... [2020-10-27 04:10:38,604 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 04:10:38" (1/1) ... [2020-10-27 04:10:38,607 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-27 04:10:38,608 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-27 04:10:38,608 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-27 04:10:38,609 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-27 04:10:38,609 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 04:10:38" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 04:10:38,685 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-27 04:10:38,685 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-27 04:10:38,685 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-27 04:10:38,685 INFO L138 BoogieDeclarations]: Found implementation of procedure max [2020-10-27 04:10:38,686 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-27 04:10:38,686 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-27 04:10:38,686 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-27 04:10:38,686 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2020-10-27 04:10:38,686 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2020-10-27 04:10:38,687 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-27 04:10:38,687 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-27 04:10:38,687 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-27 04:10:38,687 INFO L130 BoogieDeclarations]: Found specification of procedure max [2020-10-27 04:10:38,687 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-27 04:10:38,688 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-27 04:10:38,688 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-27 04:10:38,688 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-27 04:10:38,688 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-27 04:10:38,688 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-27 04:10:38,689 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-27 04:10:39,217 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-27 04:10:39,220 INFO L298 CfgBuilder]: Removed 3 assume(true) statements. [2020-10-27 04:10:39,223 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 04:10:39 BoogieIcfgContainer [2020-10-27 04:10:39,223 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-27 04:10:39,229 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-27 04:10:39,229 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-27 04:10:39,234 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-27 04:10:39,234 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 04:10:38" (1/3) ... [2020-10-27 04:10:39,236 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d8d507f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 04:10:39, skipping insertion in model container [2020-10-27 04:10:39,236 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 04:10:38" (2/3) ... [2020-10-27 04:10:39,237 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d8d507f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 04:10:39, skipping insertion in model container [2020-10-27 04:10:39,237 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 04:10:39" (3/3) ... [2020-10-27 04:10:39,240 INFO L111 eAbstractionObserver]: Analyzing ICFG max10-1.i [2020-10-27 04:10:39,253 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-27 04:10:39,261 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-27 04:10:39,276 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-27 04:10:39,321 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-27 04:10:39,321 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-27 04:10:39,322 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-27 04:10:39,322 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-27 04:10:39,322 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-27 04:10:39,322 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-27 04:10:39,322 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-27 04:10:39,323 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-27 04:10:39,348 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states. [2020-10-27 04:10:39,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-10-27 04:10:39,363 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 04:10:39,364 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 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 04:10:39,364 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 04:10:39,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 04:10:39,374 INFO L82 PathProgramCache]: Analyzing trace with hash -122162658, now seen corresponding path program 1 times [2020-10-27 04:10:39,385 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 04:10:39,387 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [181908997] [2020-10-27 04:10:39,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 04:10:39,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:10:39,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:10:39,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:10:39,799 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:10:39,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:10:40,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:10:40,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:10:41,339 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:10:41,339 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-10-27 04:10:41,339 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-27 04:10:41,340 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1749 [2020-10-27 04:10:41,342 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:10:41,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:10:41,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 04:10:41,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 04:10:41,344 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-27 04:10:41,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 04:10:41,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:10:41,451 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:10:41,457 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:10:41,457 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 04:10:41,457 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:10:41,458 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 04:10:41,458 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:10:41,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:10:41,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:10:41,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:10:41,459 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 04:10:41,469 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-27 04:10:41,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:10:41,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:10:41,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:10:41,486 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:10:41,487 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 04:10:41,487 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 04:10:41,487 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 04:10:41,488 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:10:41,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:10:41,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-27 04:10:41,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:10:41,489 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 04:10:41,491 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-10-27 04:10:41,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:10:41,497 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:10:41,500 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:10:41,507 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:10:41,508 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 04:10:41,508 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 04:10:41,508 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-27 04:10:41,509 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:10:41,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:10:41,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-27 04:10:41,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:10:41,510 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:10:41,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-27 04:10:41,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:10:41,517 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:10:41,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:10:41,524 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:10:41,525 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 04:10:41,525 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 04:10:41,525 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 04:10:41,526 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:10:41,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:10:41,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-27 04:10:41,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:10:41,528 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 04:10:41,539 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-10-27 04:10:41,540 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [181908997] [2020-10-27 04:10:41,542 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 04:10:41,542 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-27 04:10:41,543 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1499558546] [2020-10-27 04:10:41,551 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-27 04:10:41,551 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 04:10:41,577 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-27 04:10:41,578 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-27 04:10:41,582 INFO L87 Difference]: Start difference. First operand 37 states. Second operand 4 states. [2020-10-27 04:10:41,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 04:10:41,741 INFO L93 Difference]: Finished difference Result 66 states and 90 transitions. [2020-10-27 04:10:41,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-27 04:10:41,743 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 34 [2020-10-27 04:10:41,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 04:10:41,752 INFO L225 Difference]: With dead ends: 66 [2020-10-27 04:10:41,752 INFO L226 Difference]: Without dead ends: 32 [2020-10-27 04:10:41,756 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-27 04:10:41,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2020-10-27 04:10:41,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 31. [2020-10-27 04:10:41,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2020-10-27 04:10:41,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 36 transitions. [2020-10-27 04:10:41,802 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 36 transitions. Word has length 34 [2020-10-27 04:10:41,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 04:10:41,802 INFO L481 AbstractCegarLoop]: Abstraction has 31 states and 36 transitions. [2020-10-27 04:10:41,803 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-27 04:10:41,803 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 36 transitions. [2020-10-27 04:10:41,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2020-10-27 04:10:41,805 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 04:10:41,806 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 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 04:10:41,806 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-27 04:10:41,806 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 04:10:41,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 04:10:41,807 INFO L82 PathProgramCache]: Analyzing trace with hash -839912781, now seen corresponding path program 1 times [2020-10-27 04:10:41,807 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 04:10:41,807 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [314888143] [2020-10-27 04:10:41,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 04:10:41,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:10:41,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:10:41,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:10:41,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:10:41,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:10:41,967 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:10:42,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:10:44,040 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:10:44,040 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-27 04:10:44,040 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-27 04:10:44,040 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2217 [2020-10-27 04:10:44,041 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:10:44,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 04:10:44,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 04:10:44,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 04:10:44,041 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:10:44,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 04:10:44,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:10:44,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:10:44,131 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:10:44,131 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 04:10:44,131 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:10:44,131 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 04:10:44,132 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:10:44,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:10:44,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:10:44,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:10:44,133 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:10:44,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-27 04:10:44,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:10:44,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:10:44,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:10:44,148 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:10:44,148 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 04:10:44,148 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 04:10:44,149 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 04:10:44,149 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:10:44,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:10:44,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 04:10:44,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 04:10:44,150 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:10:44,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-27 04:10:44,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:10:44,165 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:10:44,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:10:44,173 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:10:44,173 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 04:10:44,173 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 04:10:44,174 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 04:10:44,174 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:10:44,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:10:44,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 04:10:44,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 04:10:44,175 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:10:44,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-10-27 04:10:44,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:10:44,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:10:44,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:10:44,192 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:10:44,193 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 04:10:44,193 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 04:10:44,193 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-27 04:10:44,211 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:10:44,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:10:44,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 04:10:44,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 04:10:44,211 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:10:44,217 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-10-27 04:10:44,218 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [314888143] [2020-10-27 04:10:44,218 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 04:10:44,218 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-27 04:10:44,218 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [3204493] [2020-10-27 04:10:44,221 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-27 04:10:44,222 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 04:10:44,222 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-27 04:10:44,224 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-27 04:10:44,224 INFO L87 Difference]: Start difference. First operand 31 states and 36 transitions. Second operand 6 states. [2020-10-27 04:10:44,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 04:10:44,375 INFO L93 Difference]: Finished difference Result 60 states and 75 transitions. [2020-10-27 04:10:44,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-27 04:10:44,376 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 36 [2020-10-27 04:10:44,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 04:10:44,377 INFO L225 Difference]: With dead ends: 60 [2020-10-27 04:10:44,377 INFO L226 Difference]: Without dead ends: 38 [2020-10-27 04:10:44,379 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-27 04:10:44,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2020-10-27 04:10:44,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 34. [2020-10-27 04:10:44,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2020-10-27 04:10:44,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 39 transitions. [2020-10-27 04:10:44,388 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 39 transitions. Word has length 36 [2020-10-27 04:10:44,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 04:10:44,389 INFO L481 AbstractCegarLoop]: Abstraction has 34 states and 39 transitions. [2020-10-27 04:10:44,389 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-27 04:10:44,389 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 39 transitions. [2020-10-27 04:10:44,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2020-10-27 04:10:44,390 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 04:10:44,391 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 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] [2020-10-27 04:10:44,391 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-27 04:10:44,391 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 04:10:44,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 04:10:44,392 INFO L82 PathProgramCache]: Analyzing trace with hash -467101424, now seen corresponding path program 1 times [2020-10-27 04:10:44,392 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 04:10:44,392 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1198995401] [2020-10-27 04:10:44,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 04:10:44,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:10:44,413 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:10:44,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:10:44,449 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:10:44,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:10:45,091 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:10:49,415 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:10:49,415 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-27 04:10:49,416 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-27 04:10:49,416 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-10-27 04:10:49,416 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:10:49,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 04:10:49,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 04:10:49,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 04:10:49,417 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:10:49,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 04:10:49,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:10:49,469 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:10:49,472 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:10:49,472 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 04:10:49,472 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:10:49,472 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 04:10:49,472 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:10:49,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:10:49,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:10:49,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:10:49,473 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:10:49,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-10-27 04:10:49,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:10:49,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:10:49,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:10:49,503 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:10:49,504 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-27 04:10:49,504 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 04:10:49,504 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-27 04:10:49,504 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:10:49,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 04:10:49,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 04:10:49,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 04:10:49,505 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:10:49,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-27 04:10:49,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:10:49,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:10:49,535 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:10:49,549 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:10:49,550 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-27 04:10:49,550 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 04:10:49,550 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-27 04:10:49,550 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:10:49,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 04:10:49,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 04:10:49,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 04:10:49,551 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:10:49,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-27 04:10:49,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:10:49,559 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:10:49,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:10:49,595 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:10:49,595 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-27 04:10:49,595 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 04:10:49,596 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-27 04:10:49,596 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:10:49,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 04:10:49,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 04:10:49,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 04:10:49,597 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:10:49,606 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 3 proven. 10 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2020-10-27 04:10:49,607 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1198995401] [2020-10-27 04:10:49,608 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 04:10:49,608 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-27 04:10:49,608 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [439244547] [2020-10-27 04:10:49,610 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-27 04:10:49,610 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 04:10:49,611 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-27 04:10:49,613 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-27 04:10:49,613 INFO L87 Difference]: Start difference. First operand 34 states and 39 transitions. Second operand 8 states. [2020-10-27 04:10:49,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 04:10:49,858 INFO L93 Difference]: Finished difference Result 67 states and 83 transitions. [2020-10-27 04:10:49,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-27 04:10:49,859 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 50 [2020-10-27 04:10:49,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 04:10:49,860 INFO L225 Difference]: With dead ends: 67 [2020-10-27 04:10:49,861 INFO L226 Difference]: Without dead ends: 44 [2020-10-27 04:10:49,864 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2020-10-27 04:10:49,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2020-10-27 04:10:49,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 40. [2020-10-27 04:10:49,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2020-10-27 04:10:49,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 46 transitions. [2020-10-27 04:10:49,873 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 46 transitions. Word has length 50 [2020-10-27 04:10:49,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 04:10:49,874 INFO L481 AbstractCegarLoop]: Abstraction has 40 states and 46 transitions. [2020-10-27 04:10:49,874 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-27 04:10:49,874 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 46 transitions. [2020-10-27 04:10:49,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-10-27 04:10:49,876 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 04:10:49,876 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 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 04:10:49,877 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-27 04:10:49,877 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 04:10:49,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 04:10:49,877 INFO L82 PathProgramCache]: Analyzing trace with hash -240181139, now seen corresponding path program 2 times [2020-10-27 04:10:49,878 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 04:10:49,878 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1575544188] [2020-10-27 04:10:49,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 04:10:49,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:10:49,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:10:49,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:10:49,950 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:10:49,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:10:50,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:10:54,909 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:10:54,909 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-10-27 04:10:54,909 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-27 04:10:54,910 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5012 [2020-10-27 04:10:54,910 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:10:54,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 04:10:54,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 04:10:54,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 04:10:54,910 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:10:54,972 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 04:10:54,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:10:54,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:10:54,980 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:10:54,980 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 04:10:54,980 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:10:54,980 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 04:10:54,981 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:10:54,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:10:54,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:10:54,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:10:54,981 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:10:54,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-27 04:10:54,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:10:54,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:10:54,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:10:55,032 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:10:55,032 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-27 04:10:55,032 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 04:10:55,034 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-27 04:10:55,035 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:10:55,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 04:10:55,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 04:10:55,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-27 04:10:55,036 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:10:55,072 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-27 04:10:55,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:10:55,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:10:55,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:10:55,113 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:10:55,114 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-27 04:10:55,114 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 04:10:55,114 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-27 04:10:55,114 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:10:55,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 04:10:55,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 04:10:55,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-27 04:10:55,115 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:10:55,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-27 04:10:55,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:10:55,132 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:10:55,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:10:55,168 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:10:55,168 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-27 04:10:55,168 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 04:10:55,169 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-27 04:10:55,169 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:10:55,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 04:10:55,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 04:10:55,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-27 04:10:55,169 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:10:55,182 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 18 proven. 45 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2020-10-27 04:10:55,183 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1575544188] [2020-10-27 04:10:55,183 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 04:10:55,183 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-27 04:10:55,184 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1114143699] [2020-10-27 04:10:55,184 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-27 04:10:55,184 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 04:10:55,185 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-27 04:10:55,186 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2020-10-27 04:10:55,186 INFO L87 Difference]: Start difference. First operand 40 states and 46 transitions. Second operand 10 states. [2020-10-27 04:10:55,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 04:10:55,495 INFO L93 Difference]: Finished difference Result 77 states and 95 transitions. [2020-10-27 04:10:55,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-27 04:10:55,496 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 64 [2020-10-27 04:10:55,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 04:10:55,497 INFO L225 Difference]: With dead ends: 77 [2020-10-27 04:10:55,497 INFO L226 Difference]: Without dead ends: 50 [2020-10-27 04:10:55,500 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2020-10-27 04:10:55,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2020-10-27 04:10:55,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 46. [2020-10-27 04:10:55,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2020-10-27 04:10:55,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 53 transitions. [2020-10-27 04:10:55,520 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 53 transitions. Word has length 64 [2020-10-27 04:10:55,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 04:10:55,520 INFO L481 AbstractCegarLoop]: Abstraction has 46 states and 53 transitions. [2020-10-27 04:10:55,520 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-27 04:10:55,520 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 53 transitions. [2020-10-27 04:10:55,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2020-10-27 04:10:55,526 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 04:10:55,526 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 4, 4, 3, 3, 3, 3, 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 04:10:55,526 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-27 04:10:55,526 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 04:10:55,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 04:10:55,529 INFO L82 PathProgramCache]: Analyzing trace with hash 476260554, now seen corresponding path program 3 times [2020-10-27 04:10:55,530 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 04:10:55,530 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1080115978] [2020-10-27 04:10:55,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 04:10:55,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:10:55,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:10:55,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:10:55,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:10:55,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:10:55,744 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:10:58,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:11:00,574 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:11:00,575 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-10-27 04:11:00,575 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-27 04:11:00,575 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5019 [2020-10-27 04:11:00,575 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:11:00,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-27 04:11:00,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 04:11:00,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-27 04:11:00,576 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:11:00,642 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 04:11:00,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:11:00,646 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:11:00,651 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:11:00,651 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 04:11:00,651 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:11:00,651 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 04:11:00,651 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:11:00,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:11:00,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:11:00,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:11:00,652 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:11:00,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-27 04:11:00,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:11:00,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:11:00,666 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:11:00,712 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:11:00,712 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-27 04:11:00,712 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 04:11:00,712 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-10-27 04:11:00,713 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:11:00,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 04:11:00,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 04:11:00,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-27 04:11:00,713 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:11:00,762 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-27 04:11:00,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:11:00,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:11:00,773 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:11:00,816 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:11:00,817 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-27 04:11:00,817 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 04:11:00,817 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-10-27 04:11:00,818 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:11:00,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 04:11:00,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 04:11:00,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-27 04:11:00,818 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:11:00,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-27 04:11:00,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:11:00,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:11:00,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:11:00,891 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:11:00,891 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-27 04:11:00,892 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 04:11:00,892 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-10-27 04:11:00,892 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:11:00,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 04:11:00,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 04:11:00,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-27 04:11:00,893 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:11:00,911 INFO L134 CoverageAnalysis]: Checked inductivity of 202 backedges. 45 proven. 106 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2020-10-27 04:11:00,911 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1080115978] [2020-10-27 04:11:00,911 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 04:11:00,912 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-27 04:11:00,912 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1899860197] [2020-10-27 04:11:00,914 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-27 04:11:00,915 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 04:11:00,915 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-27 04:11:00,915 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2020-10-27 04:11:00,916 INFO L87 Difference]: Start difference. First operand 46 states and 53 transitions. Second operand 12 states. [2020-10-27 04:11:01,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 04:11:01,243 INFO L93 Difference]: Finished difference Result 87 states and 107 transitions. [2020-10-27 04:11:01,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-27 04:11:01,243 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 78 [2020-10-27 04:11:01,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 04:11:01,245 INFO L225 Difference]: With dead ends: 87 [2020-10-27 04:11:01,245 INFO L226 Difference]: Without dead ends: 56 [2020-10-27 04:11:01,246 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2020-10-27 04:11:01,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2020-10-27 04:11:01,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 52. [2020-10-27 04:11:01,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2020-10-27 04:11:01,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 60 transitions. [2020-10-27 04:11:01,255 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 60 transitions. Word has length 78 [2020-10-27 04:11:01,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 04:11:01,255 INFO L481 AbstractCegarLoop]: Abstraction has 52 states and 60 transitions. [2020-10-27 04:11:01,255 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-27 04:11:01,255 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 60 transitions. [2020-10-27 04:11:01,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2020-10-27 04:11:01,257 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 04:11:01,257 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 5, 5, 3, 3, 3, 3, 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 04:11:01,257 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-27 04:11:01,258 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 04:11:01,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 04:11:01,258 INFO L82 PathProgramCache]: Analyzing trace with hash -671329753, now seen corresponding path program 4 times [2020-10-27 04:11:01,258 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 04:11:01,259 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1907704027] [2020-10-27 04:11:01,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 04:11:01,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:11:01,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:11:01,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:11:01,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:11:01,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:11:01,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:11:06,301 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:11:06,301 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 106 [2020-10-27 04:11:06,301 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-27 04:11:06,301 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5018 [2020-10-27 04:11:06,302 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:11:06,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 04:11:06,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 04:11:06,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-27 04:11:06,302 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:11:06,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 04:11:06,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:11:06,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:11:06,400 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:11:06,400 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 04:11:06,400 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:11:06,401 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 04:11:06,401 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:11:06,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:11:06,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:11:06,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:11:06,401 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:11:06,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-10-27 04:11:06,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:11:06,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:11:06,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:11:06,490 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:11:06,490 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-27 04:11:06,490 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 04:11:06,490 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 80 [2020-10-27 04:11:06,490 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:11:06,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-27 04:11:06,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 04:11:06,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-27 04:11:06,492 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 04:11:06,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-10-27 04:11:06,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:11:06,578 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:11:06,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:11:06,639 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:11:06,639 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-27 04:11:06,639 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 04:11:06,640 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-10-27 04:11:06,640 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:11:06,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-27 04:11:06,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 04:11:06,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-27 04:11:06,640 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:11:06,648 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-27 04:11:06,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:11:06,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:11:06,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:11:06,739 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:11:06,740 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-27 04:11:06,740 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 04:11:06,740 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 84 [2020-10-27 04:11:06,740 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:11:06,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-27 04:11:06,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 04:11:06,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-27 04:11:06,741 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:11:06,767 INFO L134 CoverageAnalysis]: Checked inductivity of 340 backedges. 84 proven. 193 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2020-10-27 04:11:06,768 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1907704027] [2020-10-27 04:11:06,769 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 04:11:06,769 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-10-27 04:11:06,769 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1208875163] [2020-10-27 04:11:06,771 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-27 04:11:06,771 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 04:11:06,772 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-27 04:11:06,772 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2020-10-27 04:11:06,772 INFO L87 Difference]: Start difference. First operand 52 states and 60 transitions. Second operand 14 states. [2020-10-27 04:11:07,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 04:11:07,185 INFO L93 Difference]: Finished difference Result 97 states and 119 transitions. [2020-10-27 04:11:07,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-27 04:11:07,185 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 92 [2020-10-27 04:11:07,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 04:11:07,186 INFO L225 Difference]: With dead ends: 97 [2020-10-27 04:11:07,187 INFO L226 Difference]: Without dead ends: 62 [2020-10-27 04:11:07,188 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=90, Invalid=252, Unknown=0, NotChecked=0, Total=342 [2020-10-27 04:11:07,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2020-10-27 04:11:07,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 58. [2020-10-27 04:11:07,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2020-10-27 04:11:07,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 67 transitions. [2020-10-27 04:11:07,196 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 67 transitions. Word has length 92 [2020-10-27 04:11:07,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 04:11:07,196 INFO L481 AbstractCegarLoop]: Abstraction has 58 states and 67 transitions. [2020-10-27 04:11:07,196 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-27 04:11:07,197 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 67 transitions. [2020-10-27 04:11:07,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2020-10-27 04:11:07,198 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 04:11:07,198 INFO L422 BasicCegarLoop]: trace histogram [15, 15, 15, 15, 6, 6, 3, 3, 3, 3, 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 04:11:07,198 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-27 04:11:07,199 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 04:11:07,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 04:11:07,199 INFO L82 PathProgramCache]: Analyzing trace with hash 604650628, now seen corresponding path program 5 times [2020-10-27 04:11:07,199 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 04:11:07,200 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1317762758] [2020-10-27 04:11:07,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 04:11:07,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:11:07,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:11:07,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:11:07,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:11:07,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:11:07,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:11:12,248 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:11:12,249 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-10-27 04:11:12,249 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-27 04:11:12,249 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5023 [2020-10-27 04:11:12,249 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:11:12,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-27 04:11:12,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 04:11:12,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-27 04:11:12,250 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:11:12,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 04:11:12,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:11:12,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:11:12,385 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:11:12,385 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 04:11:12,385 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:11:12,385 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 04:11:12,386 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:11:12,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:11:12,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:11:12,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:11:12,386 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:11:12,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-27 04:11:12,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:11:12,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:11:12,400 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:11:12,486 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:11:12,486 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-27 04:11:12,486 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 04:11:12,486 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 93 [2020-10-27 04:11:12,486 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:11:12,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 04:11:12,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 04:11:12,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-27 04:11:12,487 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:11:12,570 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-27 04:11:12,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:11:12,578 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:11:12,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:11:12,645 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:11:12,645 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-27 04:11:12,645 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 04:11:12,645 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 69 [2020-10-27 04:11:12,645 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:11:12,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 04:11:12,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 04:11:12,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-27 04:11:12,646 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:11:12,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-27 04:11:12,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:11:12,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:11:12,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:11:12,736 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:11:12,737 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-27 04:11:12,737 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 04:11:12,737 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 77 [2020-10-27 04:11:12,737 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:11:12,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 04:11:12,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 04:11:12,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-27 04:11:12,738 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:11:12,763 INFO L134 CoverageAnalysis]: Checked inductivity of 516 backedges. 135 proven. 306 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2020-10-27 04:11:12,763 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1317762758] [2020-10-27 04:11:12,764 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 04:11:12,764 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-10-27 04:11:12,764 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1880863316] [2020-10-27 04:11:12,765 INFO L461 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-27 04:11:12,765 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 04:11:12,765 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-27 04:11:12,766 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2020-10-27 04:11:12,766 INFO L87 Difference]: Start difference. First operand 58 states and 67 transitions. Second operand 16 states. [2020-10-27 04:11:13,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 04:11:13,241 INFO L93 Difference]: Finished difference Result 107 states and 131 transitions. [2020-10-27 04:11:13,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-27 04:11:13,242 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 106 [2020-10-27 04:11:13,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 04:11:13,243 INFO L225 Difference]: With dead ends: 107 [2020-10-27 04:11:13,243 INFO L226 Difference]: Without dead ends: 68 [2020-10-27 04:11:13,245 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=119, Invalid=343, Unknown=0, NotChecked=0, Total=462 [2020-10-27 04:11:13,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2020-10-27 04:11:13,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 64. [2020-10-27 04:11:13,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2020-10-27 04:11:13,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 74 transitions. [2020-10-27 04:11:13,254 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 74 transitions. Word has length 106 [2020-10-27 04:11:13,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 04:11:13,255 INFO L481 AbstractCegarLoop]: Abstraction has 64 states and 74 transitions. [2020-10-27 04:11:13,255 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-27 04:11:13,255 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 74 transitions. [2020-10-27 04:11:13,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2020-10-27 04:11:13,258 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 04:11:13,258 INFO L422 BasicCegarLoop]: trace histogram [18, 18, 18, 18, 7, 7, 3, 3, 3, 3, 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 04:11:13,258 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-27 04:11:13,259 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 04:11:13,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 04:11:13,259 INFO L82 PathProgramCache]: Analyzing trace with hash 1240762337, now seen corresponding path program 6 times [2020-10-27 04:11:13,259 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 04:11:13,260 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [996239296] [2020-10-27 04:11:13,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 04:11:13,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:11:13,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:11:13,333 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:11:13,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:11:13,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:11:13,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:11:18,287 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:11:18,287 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 134 [2020-10-27 04:11:18,288 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-27 04:11:18,288 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-27 04:11:18,288 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:11:18,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-27 04:11:18,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 04:11:18,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-27 04:11:18,288 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:11:18,387 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 04:11:18,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:11:18,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:11:18,392 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:11:18,392 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 04:11:18,392 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:11:18,393 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 04:11:18,393 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:11:18,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:11:18,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:11:18,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:11:18,393 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:11:18,395 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-27 04:11:18,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:11:18,402 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:11:18,408 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:11:18,495 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:11:18,495 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-27 04:11:18,495 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 04:11:18,496 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 95 [2020-10-27 04:11:18,496 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:11:18,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-27 04:11:18,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 04:11:18,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-27 04:11:18,496 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:11:18,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-27 04:11:18,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:11:18,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:11:18,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:11:18,707 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:11:18,708 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-27 04:11:18,708 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 04:11:18,708 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 99 [2020-10-27 04:11:18,708 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:11:18,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-27 04:11:18,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 04:11:18,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-27 04:11:18,709 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:11:18,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-10-27 04:11:18,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:11:18,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:11:18,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:11:18,790 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:11:18,790 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-27 04:11:18,790 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 04:11:18,790 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 64 [2020-10-27 04:11:18,790 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:11:18,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-27 04:11:18,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 04:11:18,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-27 04:11:18,791 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:11:18,810 INFO L134 CoverageAnalysis]: Checked inductivity of 730 backedges. 198 proven. 445 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2020-10-27 04:11:18,810 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [996239296] [2020-10-27 04:11:18,810 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 04:11:18,811 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2020-10-27 04:11:18,811 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [24250291] [2020-10-27 04:11:18,811 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-10-27 04:11:18,812 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 04:11:18,812 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-10-27 04:11:18,812 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=224, Unknown=0, NotChecked=0, Total=306 [2020-10-27 04:11:18,822 INFO L87 Difference]: Start difference. First operand 64 states and 74 transitions. Second operand 18 states. [2020-10-27 04:11:19,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 04:11:19,398 INFO L93 Difference]: Finished difference Result 117 states and 143 transitions. [2020-10-27 04:11:19,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-27 04:11:19,399 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 120 [2020-10-27 04:11:19,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 04:11:19,400 INFO L225 Difference]: With dead ends: 117 [2020-10-27 04:11:19,401 INFO L226 Difference]: Without dead ends: 74 [2020-10-27 04:11:19,402 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=152, Invalid=448, Unknown=0, NotChecked=0, Total=600 [2020-10-27 04:11:19,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2020-10-27 04:11:19,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 70. [2020-10-27 04:11:19,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70 states. [2020-10-27 04:11:19,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 81 transitions. [2020-10-27 04:11:19,427 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 81 transitions. Word has length 120 [2020-10-27 04:11:19,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 04:11:19,427 INFO L481 AbstractCegarLoop]: Abstraction has 70 states and 81 transitions. [2020-10-27 04:11:19,427 INFO L482 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-10-27 04:11:19,427 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 81 transitions. [2020-10-27 04:11:19,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2020-10-27 04:11:19,429 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 04:11:19,429 INFO L422 BasicCegarLoop]: trace histogram [21, 21, 21, 21, 8, 8, 3, 3, 3, 3, 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 04:11:19,430 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-27 04:11:19,430 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 04:11:19,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 04:11:19,430 INFO L82 PathProgramCache]: Analyzing trace with hash 452645950, now seen corresponding path program 7 times [2020-10-27 04:11:19,431 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 04:11:19,431 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1943180899] [2020-10-27 04:11:19,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 04:11:19,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:11:19,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:11:19,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:11:19,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:11:19,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:11:20,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:11:24,472 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:11:24,473 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 148 [2020-10-27 04:11:24,473 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-27 04:11:24,473 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-10-27 04:11:24,473 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:11:24,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-27 04:11:24,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 04:11:24,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-27 04:11:24,473 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:11:24,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 04:11:24,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:11:24,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:11:24,593 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:11:24,593 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 04:11:24,593 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:11:24,594 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 04:11:24,594 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:11:24,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:11:24,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:11:24,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:11:24,594 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:11:24,596 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-27 04:11:24,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:11:24,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:11:24,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:11:24,789 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:11:24,789 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-10-27 04:11:24,789 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 04:11:24,789 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 179 [2020-10-27 04:11:24,790 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:11:24,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-27 04:11:24,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 04:11:24,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-10-27 04:11:24,790 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:11:24,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-10-27 04:11:24,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:11:25,005 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:11:25,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:11:25,161 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:11:25,161 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-10-27 04:11:25,162 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 04:11:25,162 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 160 [2020-10-27 04:11:25,162 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:11:25,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-27 04:11:25,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 04:11:25,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-10-27 04:11:25,163 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:11:25,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-27 04:11:25,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:11:25,206 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:11:25,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:11:25,332 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:11:25,332 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-10-27 04:11:25,332 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 04:11:25,332 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 129 [2020-10-27 04:11:25,333 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:11:25,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-27 04:11:25,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 04:11:25,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-10-27 04:11:25,333 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:11:25,367 INFO L134 CoverageAnalysis]: Checked inductivity of 982 backedges. 273 proven. 610 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2020-10-27 04:11:25,367 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1943180899] [2020-10-27 04:11:25,367 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 04:11:25,368 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2020-10-27 04:11:25,369 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [106058439] [2020-10-27 04:11:25,369 INFO L461 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-10-27 04:11:25,374 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 04:11:25,375 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-10-27 04:11:25,377 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=101, Invalid=279, Unknown=0, NotChecked=0, Total=380 [2020-10-27 04:11:25,377 INFO L87 Difference]: Start difference. First operand 70 states and 81 transitions. Second operand 20 states. [2020-10-27 04:11:25,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 04:11:25,977 INFO L93 Difference]: Finished difference Result 127 states and 155 transitions. [2020-10-27 04:11:25,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-27 04:11:25,978 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 134 [2020-10-27 04:11:25,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 04:11:25,979 INFO L225 Difference]: With dead ends: 127 [2020-10-27 04:11:25,980 INFO L226 Difference]: Without dead ends: 80 [2020-10-27 04:11:25,981 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=189, Invalid=567, Unknown=0, NotChecked=0, Total=756 [2020-10-27 04:11:25,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2020-10-27 04:11:25,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 76. [2020-10-27 04:11:25,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2020-10-27 04:11:25,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 88 transitions. [2020-10-27 04:11:25,989 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 88 transitions. Word has length 134 [2020-10-27 04:11:25,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 04:11:25,989 INFO L481 AbstractCegarLoop]: Abstraction has 76 states and 88 transitions. [2020-10-27 04:11:25,989 INFO L482 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-10-27 04:11:25,990 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 88 transitions. [2020-10-27 04:11:25,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-10-27 04:11:25,999 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 04:11:26,000 INFO L422 BasicCegarLoop]: trace histogram [24, 24, 24, 24, 9, 9, 3, 3, 3, 3, 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 04:11:26,000 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-27 04:11:26,001 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 04:11:26,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 04:11:26,002 INFO L82 PathProgramCache]: Analyzing trace with hash -1372274277, now seen corresponding path program 8 times [2020-10-27 04:11:26,002 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 04:11:26,002 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1853940117] [2020-10-27 04:11:26,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 04:11:26,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:11:26,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:11:26,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:11:26,117 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:11:26,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:11:26,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:11:31,048 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:11:31,048 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 162 [2020-10-27 04:11:31,048 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-27 04:11:31,048 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5016 [2020-10-27 04:11:31,048 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:11:31,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-27 04:11:31,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 04:11:31,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-27 04:11:31,049 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:11:31,180 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 04:11:31,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:11:31,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:11:31,185 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:11:31,186 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 04:11:31,186 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:11:31,186 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 04:11:31,186 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:11:31,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:11:31,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:11:31,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:11:31,187 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:11:31,188 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-10-27 04:11:31,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:11:31,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:11:31,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:11:31,367 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:11:31,367 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-27 04:11:31,367 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 04:11:31,367 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 170 [2020-10-27 04:11:31,367 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:11:31,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-27 04:11:31,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 04:11:31,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-27 04:11:31,368 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:11:31,521 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-27 04:11:31,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:11:31,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:11:31,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:11:31,696 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:11:31,696 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-27 04:11:31,696 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 04:11:31,696 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 167 [2020-10-27 04:11:31,697 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:11:31,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-27 04:11:31,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 04:11:31,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-27 04:11:31,697 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:11:31,710 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-27 04:11:31,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:11:31,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:11:31,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:11:31,877 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:11:31,877 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-27 04:11:31,877 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 04:11:31,877 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 159 [2020-10-27 04:11:31,878 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:11:31,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-27 04:11:31,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 04:11:31,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-27 04:11:31,878 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:11:31,934 INFO L134 CoverageAnalysis]: Checked inductivity of 1272 backedges. 360 proven. 801 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2020-10-27 04:11:31,935 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1853940117] [2020-10-27 04:11:31,935 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 04:11:31,935 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22] total 22 [2020-10-27 04:11:31,936 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1084896968] [2020-10-27 04:11:31,936 INFO L461 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-10-27 04:11:31,936 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 04:11:31,937 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-10-27 04:11:31,937 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=122, Invalid=340, Unknown=0, NotChecked=0, Total=462 [2020-10-27 04:11:31,938 INFO L87 Difference]: Start difference. First operand 76 states and 88 transitions. Second operand 22 states. [2020-10-27 04:11:32,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 04:11:32,613 INFO L93 Difference]: Finished difference Result 136 states and 166 transitions. [2020-10-27 04:11:32,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-27 04:11:32,614 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 148 [2020-10-27 04:11:32,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 04:11:32,615 INFO L225 Difference]: With dead ends: 136 [2020-10-27 04:11:32,615 INFO L226 Difference]: Without dead ends: 85 [2020-10-27 04:11:32,620 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 126 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=230, Invalid=700, Unknown=0, NotChecked=0, Total=930 [2020-10-27 04:11:32,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2020-10-27 04:11:32,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 82. [2020-10-27 04:11:32,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82 states. [2020-10-27 04:11:32,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 95 transitions. [2020-10-27 04:11:32,640 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 95 transitions. Word has length 148 [2020-10-27 04:11:32,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 04:11:32,641 INFO L481 AbstractCegarLoop]: Abstraction has 82 states and 95 transitions. [2020-10-27 04:11:32,641 INFO L482 AbstractCegarLoop]: Interpolant automaton has 22 states. [2020-10-27 04:11:32,641 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 95 transitions. [2020-10-27 04:11:32,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2020-10-27 04:11:32,646 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 04:11:32,646 INFO L422 BasicCegarLoop]: trace histogram [27, 27, 27, 27, 10, 10, 3, 3, 3, 3, 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 04:11:32,646 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-27 04:11:32,647 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 04:11:32,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 04:11:32,649 INFO L82 PathProgramCache]: Analyzing trace with hash -1634603016, now seen corresponding path program 9 times [2020-10-27 04:11:32,649 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 04:11:32,649 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [66349902] [2020-10-27 04:11:32,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 04:11:32,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:11:32,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:11:32,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:11:32,774 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:11:33,165 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:11:35,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:11:37,701 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:11:37,702 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 176 [2020-10-27 04:11:37,702 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-27 04:11:37,702 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5023 [2020-10-27 04:11:37,702 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:11:37,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-10-27 04:11:37,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-10-27 04:11:37,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 101 [2020-10-27 04:11:37,702 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:11:37,829 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 04:11:37,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:11:37,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:11:37,835 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:11:37,835 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 04:11:37,835 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:11:37,836 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 04:11:37,836 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:11:37,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:11:37,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:11:37,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:11:37,836 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:11:37,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-27 04:11:37,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:11:37,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:11:37,949 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:11:38,289 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:11:38,289 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-27 04:11:38,289 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 04:11:38,289 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 439 [2020-10-27 04:11:38,290 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:11:38,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-27 04:11:38,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:11:38,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-27 04:11:38,290 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:11:38,505 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-27 04:11:38,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:11:38,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:11:38,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:11:38,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:11:39,295 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:11:39,296 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-27 04:11:39,296 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 04:11:39,296 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 780 [2020-10-27 04:11:39,296 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:11:39,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:11:39,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:11:39,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-10-27 04:11:39,297 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:11:39,305 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-27 04:11:39,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:11:39,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:11:39,399 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:11:39,754 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:11:39,754 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-27 04:11:39,754 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 04:11:39,754 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 437 [2020-10-27 04:11:39,754 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:11:39,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-27 04:11:39,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 04:11:39,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-10-27 04:11:39,755 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:11:40,009 INFO L134 CoverageAnalysis]: Checked inductivity of 1600 backedges. 349 proven. 890 refuted. 0 times theorem prover too weak. 361 trivial. 0 not checked. [2020-10-27 04:11:40,010 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [66349902] [2020-10-27 04:11:40,010 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 04:11:40,010 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21] total 21 [2020-10-27 04:11:40,010 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1689504826] [2020-10-27 04:11:40,011 INFO L461 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-10-27 04:11:40,011 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 04:11:40,011 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-10-27 04:11:40,012 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=125, Invalid=295, Unknown=0, NotChecked=0, Total=420 [2020-10-27 04:11:40,012 INFO L87 Difference]: Start difference. First operand 82 states and 95 transitions. Second operand 21 states. [2020-10-27 04:11:42,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 04:11:42,174 INFO L93 Difference]: Finished difference Result 211 states and 266 transitions. [2020-10-27 04:11:42,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2020-10-27 04:11:42,174 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 162 [2020-10-27 04:11:42,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 04:11:42,178 INFO L225 Difference]: With dead ends: 211 [2020-10-27 04:11:42,178 INFO L226 Difference]: Without dead ends: 157 [2020-10-27 04:11:42,180 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 522 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=709, Invalid=1741, Unknown=0, NotChecked=0, Total=2450 [2020-10-27 04:11:42,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2020-10-27 04:11:42,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 149. [2020-10-27 04:11:42,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 149 states. [2020-10-27 04:11:42,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 182 transitions. [2020-10-27 04:11:42,200 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 182 transitions. Word has length 162 [2020-10-27 04:11:42,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 04:11:42,201 INFO L481 AbstractCegarLoop]: Abstraction has 149 states and 182 transitions. [2020-10-27 04:11:42,201 INFO L482 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-10-27 04:11:42,201 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 182 transitions. [2020-10-27 04:11:42,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2020-10-27 04:11:42,204 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 04:11:42,204 INFO L422 BasicCegarLoop]: trace histogram [30, 30, 30, 28, 10, 10, 3, 3, 3, 3, 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 04:11:42,204 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-27 04:11:42,205 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 04:11:42,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 04:11:42,205 INFO L82 PathProgramCache]: Analyzing trace with hash -1282017837, now seen corresponding path program 1 times [2020-10-27 04:11:42,205 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 04:11:42,206 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1345338398] [2020-10-27 04:11:42,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 04:11:42,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:11:42,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:11:42,536 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:11:42,818 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:11:43,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:11:45,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:11:47,258 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:11:47,258 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 188 [2020-10-27 04:11:47,258 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-27 04:11:47,258 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5020 [2020-10-27 04:11:47,258 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:11:47,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 50 [2020-10-27 04:11:47,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-10-27 04:11:47,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 141 [2020-10-27 04:11:47,258 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:11:47,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 04:11:47,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:11:47,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:11:47,367 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:11:47,367 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 04:11:47,367 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:11:47,367 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 04:11:47,367 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:11:47,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:11:47,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:11:47,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:11:47,368 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:11:47,369 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-27 04:11:47,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:11:47,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:11:47,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:11:47,816 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:11:49,235 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:11:49,235 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-27 04:11:49,235 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 04:11:49,235 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1856 [2020-10-27 04:11:49,235 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:11:49,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 30 [2020-10-27 04:11:49,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:11:49,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-10-27 04:11:49,236 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:11:50,508 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-27 04:11:50,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:11:50,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:11:50,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:11:50,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:11:51,592 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:11:51,593 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-27 04:11:51,593 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 04:11:51,593 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1075 [2020-10-27 04:11:51,593 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:11:51,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:11:51,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:11:51,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-27 04:11:51,593 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:11:51,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-10-27 04:11:51,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:11:51,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:11:51,700 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:11:51,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:11:52,090 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:11:52,090 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-27 04:11:52,090 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 04:11:52,090 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 479 [2020-10-27 04:11:52,090 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:11:52,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-27 04:11:52,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 04:11:52,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-27 04:11:52,091 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:11:53,245 INFO L134 CoverageAnalysis]: Checked inductivity of 1945 backedges. 513 proven. 1133 refuted. 0 times theorem prover too weak. 299 trivial. 0 not checked. [2020-10-27 04:11:53,245 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1345338398] [2020-10-27 04:11:53,245 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 04:11:53,246 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [48] total 48 [2020-10-27 04:11:53,246 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1145697095] [2020-10-27 04:11:53,246 INFO L461 AbstractCegarLoop]: Interpolant automaton has 48 states [2020-10-27 04:11:53,246 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 04:11:53,247 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2020-10-27 04:11:53,248 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=200, Invalid=2056, Unknown=0, NotChecked=0, Total=2256 [2020-10-27 04:11:53,248 INFO L87 Difference]: Start difference. First operand 149 states and 182 transitions. Second operand 48 states. [2020-10-27 04:11:57,333 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2020-10-27 04:11:57,505 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2020-10-27 04:11:57,653 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2020-10-27 04:11:57,808 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2020-10-27 04:11:58,135 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 53 [2020-10-27 04:12:00,336 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2020-10-27 04:12:02,973 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 56 [2020-10-27 04:12:03,446 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2020-10-27 04:12:03,618 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2020-10-27 04:12:06,711 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 54 [2020-10-27 04:12:07,201 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2020-10-27 04:12:07,685 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2020-10-27 04:12:08,022 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 53 [2020-10-27 04:12:09,472 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 54 [2020-10-27 04:12:10,039 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 53 [2020-10-27 04:12:10,532 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 62 [2020-10-27 04:12:10,711 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 56 [2020-10-27 04:12:10,881 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 59 [2020-10-27 04:12:11,209 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 58 [2020-10-27 04:12:11,373 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 54 [2020-10-27 04:12:11,550 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 58 [2020-10-27 04:12:11,732 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2020-10-27 04:12:11,908 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 59 [2020-10-27 04:12:12,073 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2020-10-27 04:12:12,262 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 59 [2020-10-27 04:12:12,442 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2020-10-27 04:12:12,624 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2020-10-27 04:12:13,055 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 54 [2020-10-27 04:12:14,268 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 56 [2020-10-27 04:12:14,564 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2020-10-27 04:12:14,862 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2020-10-27 04:12:15,166 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 65 [2020-10-27 04:12:15,492 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2020-10-27 04:12:15,825 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2020-10-27 04:12:16,183 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 65 [2020-10-27 04:12:16,823 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 60 [2020-10-27 04:12:17,016 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 67 [2020-10-27 04:12:17,169 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 55 [2020-10-27 04:12:17,966 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 54 [2020-10-27 04:12:18,577 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 54 [2020-10-27 04:12:19,119 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 71 [2020-10-27 04:12:19,352 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 61 [2020-10-27 04:12:19,565 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 70 [2020-10-27 04:12:19,769 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 69 [2020-10-27 04:12:19,992 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 68 [2020-10-27 04:12:20,163 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 57 [2020-10-27 04:12:20,617 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 67 [2020-10-27 04:12:20,787 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 56 [2020-10-27 04:12:21,288 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 66 [2020-10-27 04:12:21,460 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 55 [2020-10-27 04:12:22,042 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 66 [2020-10-27 04:12:22,208 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 56 [2020-10-27 04:12:22,800 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 67 [2020-10-27 04:12:22,971 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 56 [2020-10-27 04:12:23,631 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 66 [2020-10-27 04:12:23,803 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 56 [2020-10-27 04:12:24,252 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 57 [2020-10-27 04:12:24,409 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 54 [2020-10-27 04:12:24,622 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2020-10-27 04:12:25,910 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 63 [2020-10-27 04:12:26,085 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 51 [2020-10-27 04:12:28,703 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 62 [2020-10-27 04:12:28,890 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 64 [2020-10-27 04:12:29,080 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 56 [2020-10-27 04:12:29,282 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 58 [2020-10-27 04:12:30,524 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 65 [2020-10-27 04:12:30,735 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 64 [2020-10-27 04:12:31,003 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 67 [2020-10-27 04:12:31,235 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 58 [2020-10-27 04:12:31,459 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 61 [2020-10-27 04:12:31,654 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 60 [2020-10-27 04:12:31,921 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 61 [2020-10-27 04:12:32,290 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2020-10-27 04:12:32,456 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 51 [2020-10-27 04:12:33,032 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2020-10-27 04:12:33,718 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 58 [2020-10-27 04:12:33,969 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 61 [2020-10-27 04:12:34,165 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 60 [2020-10-27 04:12:34,363 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 57 [2020-10-27 04:12:35,754 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2020-10-27 04:12:36,057 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 60 [2020-10-27 04:12:36,277 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 64 [2020-10-27 04:12:36,482 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2020-10-27 04:12:36,680 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2020-10-27 04:12:36,896 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2020-10-27 04:12:37,071 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2020-10-27 04:12:37,354 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2020-10-27 04:12:37,545 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 60 [2020-10-27 04:12:37,756 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2020-10-27 04:12:37,988 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 64 [2020-10-27 04:12:38,191 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 64 [2020-10-27 04:12:38,390 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2020-10-27 04:12:38,575 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2020-10-27 04:12:38,818 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2020-10-27 04:12:38,981 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2020-10-27 04:12:39,154 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2020-10-27 04:12:39,446 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2020-10-27 04:12:39,616 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2020-10-27 04:12:39,805 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 60 [2020-10-27 04:12:40,016 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2020-10-27 04:12:40,232 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 64 [2020-10-27 04:12:40,419 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2020-10-27 04:12:40,615 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 64 [2020-10-27 04:12:40,834 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 64 [2020-10-27 04:12:41,062 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2020-10-27 04:12:41,248 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2020-10-27 04:12:41,498 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2020-10-27 04:12:41,660 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2020-10-27 04:12:41,822 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2020-10-27 04:12:42,000 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2020-10-27 04:12:42,293 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2020-10-27 04:12:42,472 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2020-10-27 04:12:42,643 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2020-10-27 04:12:42,825 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 60 [2020-10-27 04:12:43,031 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 65 [2020-10-27 04:12:43,239 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 64 [2020-10-27 04:12:43,421 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2020-10-27 04:12:43,619 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 64 [2020-10-27 04:12:43,818 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2020-10-27 04:12:44,014 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 64 [2020-10-27 04:12:44,224 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 64 [2020-10-27 04:12:44,415 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2020-10-27 04:12:44,856 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 56 [2020-10-27 04:12:45,015 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2020-10-27 04:12:45,179 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2020-10-27 04:12:45,344 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2020-10-27 04:12:45,526 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2020-10-27 04:12:45,857 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2020-10-27 04:12:46,031 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2020-10-27 04:12:46,216 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2020-10-27 04:12:46,392 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2020-10-27 04:12:46,581 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 60 [2020-10-27 04:12:46,799 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 65 [2020-10-27 04:12:47,017 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 63 [2020-10-27 04:12:47,210 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 65 [2020-10-27 04:12:47,407 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 64 [2020-10-27 04:12:47,601 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2020-10-27 04:12:47,809 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 64 [2020-10-27 04:12:48,020 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2020-10-27 04:12:48,225 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 64 [2020-10-27 04:12:48,444 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 64 [2020-10-27 04:12:48,645 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2020-10-27 04:12:48,836 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2020-10-27 04:12:49,109 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2020-10-27 04:12:49,266 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 56 [2020-10-27 04:12:49,419 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2020-10-27 04:12:49,584 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2020-10-27 04:12:49,738 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2020-10-27 04:12:49,907 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2020-10-27 04:12:50,200 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2020-10-27 04:12:50,377 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2020-10-27 04:12:50,583 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2020-10-27 04:12:50,762 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2020-10-27 04:12:50,947 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2020-10-27 04:12:51,140 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 60 [2020-10-27 04:12:51,350 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2020-10-27 04:12:51,562 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 64 [2020-10-27 04:12:51,752 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 65 [2020-10-27 04:12:51,957 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 63 [2020-10-27 04:12:52,155 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 65 [2020-10-27 04:12:52,354 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 64 [2020-10-27 04:12:52,561 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2020-10-27 04:12:52,767 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 64 [2020-10-27 04:12:52,977 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2020-10-27 04:12:53,191 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 64 [2020-10-27 04:12:53,394 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 64 [2020-10-27 04:12:53,602 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2020-10-27 04:12:53,798 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2020-10-27 04:12:54,104 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 57 [2020-10-27 04:12:54,288 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 57 [2020-10-27 04:12:54,457 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 56 [2020-10-27 04:12:54,629 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 57 [2020-10-27 04:12:54,805 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 57 [2020-10-27 04:12:54,990 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 57 [2020-10-27 04:12:55,170 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 55 [2020-10-27 04:12:55,360 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2020-10-27 04:12:55,574 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 59 [2020-10-27 04:12:55,750 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 61 [2020-10-27 04:12:55,944 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 60 [2020-10-27 04:12:56,145 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 61 [2020-10-27 04:12:56,333 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 61 [2020-10-27 04:12:56,523 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 61 [2020-10-27 04:12:56,717 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 59 [2020-10-27 04:12:56,969 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 61 [2020-10-27 04:12:57,169 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 64 [2020-10-27 04:12:57,389 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 63 [2020-10-27 04:12:57,609 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 64 [2020-10-27 04:12:57,839 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 64 [2020-10-27 04:12:58,080 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 64 [2020-10-27 04:12:58,326 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 62 [2020-10-27 04:12:58,519 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 54 [2020-10-27 04:13:00,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 04:13:00,282 INFO L93 Difference]: Finished difference Result 1336 states and 2010 transitions. [2020-10-27 04:13:00,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 401 states. [2020-10-27 04:13:00,285 INFO L78 Accepts]: Start accepts. Automaton has 48 states. Word has length 174 [2020-10-27 04:13:00,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 04:13:00,308 INFO L225 Difference]: With dead ends: 1336 [2020-10-27 04:13:00,308 INFO L226 Difference]: Without dead ends: 1310 [2020-10-27 04:13:00,339 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 452 GetRequests, 8 SyntacticMatches, 2 SemanticMatches, 442 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85041 ImplicationChecksByTransitivity, 60.9s TimeCoverageRelationStatistics Valid=14337, Invalid=182355, Unknown=0, NotChecked=0, Total=196692 [2020-10-27 04:13:00,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1310 states. [2020-10-27 04:13:00,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1310 to 931. [2020-10-27 04:13:00,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 931 states. [2020-10-27 04:13:00,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 931 states to 931 states and 1222 transitions. [2020-10-27 04:13:00,542 INFO L78 Accepts]: Start accepts. Automaton has 931 states and 1222 transitions. Word has length 174 [2020-10-27 04:13:00,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 04:13:00,544 INFO L481 AbstractCegarLoop]: Abstraction has 931 states and 1222 transitions. [2020-10-27 04:13:00,544 INFO L482 AbstractCegarLoop]: Interpolant automaton has 48 states. [2020-10-27 04:13:00,544 INFO L276 IsEmpty]: Start isEmpty. Operand 931 states and 1222 transitions. [2020-10-27 04:13:00,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2020-10-27 04:13:00,560 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 04:13:00,561 INFO L422 BasicCegarLoop]: trace histogram [30, 30, 30, 27, 10, 10, 3, 3, 3, 3, 3, 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 04:13:00,561 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-27 04:13:00,561 INFO L429 AbstractCegarLoop]: === Iteration 13 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 04:13:00,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 04:13:00,563 INFO L82 PathProgramCache]: Analyzing trace with hash -1023852399, now seen corresponding path program 2 times [2020-10-27 04:13:00,563 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 04:13:00,563 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [606661235] [2020-10-27 04:13:00,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 04:13:00,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:13:00,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:13:00,948 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:13:00,948 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 188 [2020-10-27 04:13:00,948 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:13:00,948 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 352 [2020-10-27 04:13:00,949 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:13:00,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:13:00,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 130 [2020-10-27 04:13:00,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 04:13:00,949 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:13:00,995 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 04:13:00,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:13:00,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:13:01,000 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:13:01,000 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 04:13:01,000 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:13:01,001 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 04:13:01,001 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:13:01,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:13:01,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:13:01,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:13:01,001 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:13:01,002 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-27 04:13:01,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:13:01,005 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:13:01,019 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:13:01,019 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-27 04:13:01,019 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:13:01,019 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-27 04:13:01,019 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:13:01,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:13:01,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:13:01,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:13:01,020 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:13:01,026 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-27 04:13:01,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:13:01,028 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:13:01,038 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:13:01,038 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-27 04:13:01,038 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:13:01,039 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-27 04:13:01,039 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:13:01,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:13:01,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:13:01,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:13:01,039 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:13:01,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-10-27 04:13:01,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:13:01,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:13:01,067 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:13:01,067 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-27 04:13:01,067 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:13:01,067 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-27 04:13:01,068 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:13:01,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:13:01,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 47 [2020-10-27 04:13:01,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:13:01,068 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:13:01,088 INFO L134 CoverageAnalysis]: Checked inductivity of 1945 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1945 trivial. 0 not checked. [2020-10-27 04:13:01,089 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [606661235] [2020-10-27 04:13:01,089 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 04:13:01,089 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-27 04:13:01,089 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1991047096] [2020-10-27 04:13:01,089 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-27 04:13:01,090 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 04:13:01,090 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-27 04:13:01,090 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-27 04:13:01,090 INFO L87 Difference]: Start difference. First operand 931 states and 1222 transitions. Second operand 4 states. [2020-10-27 04:13:01,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 04:13:01,257 INFO L93 Difference]: Finished difference Result 1511 states and 1955 transitions. [2020-10-27 04:13:01,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-27 04:13:01,258 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 174 [2020-10-27 04:13:01,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 04:13:01,264 INFO L225 Difference]: With dead ends: 1511 [2020-10-27 04:13:01,264 INFO L226 Difference]: Without dead ends: 641 [2020-10-27 04:13:01,272 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-27 04:13:01,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 641 states. [2020-10-27 04:13:01,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 641 to 131. [2020-10-27 04:13:01,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 131 states. [2020-10-27 04:13:01,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 158 transitions. [2020-10-27 04:13:01,304 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 158 transitions. Word has length 174 [2020-10-27 04:13:01,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 04:13:01,305 INFO L481 AbstractCegarLoop]: Abstraction has 131 states and 158 transitions. [2020-10-27 04:13:01,305 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-27 04:13:01,305 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 158 transitions. [2020-10-27 04:13:01,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2020-10-27 04:13:01,307 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 04:13:01,307 INFO L422 BasicCegarLoop]: trace histogram [30, 30, 30, 29, 10, 10, 3, 3, 3, 3, 1, 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 04:13:01,308 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-27 04:13:01,308 INFO L429 AbstractCegarLoop]: === Iteration 14 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 04:13:01,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 04:13:01,308 INFO L82 PathProgramCache]: Analyzing trace with hash -1298662413, now seen corresponding path program 1 times [2020-10-27 04:13:01,309 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 04:13:01,309 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1395335593] [2020-10-27 04:13:01,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 04:13:01,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:13:01,361 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:13:01,431 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:13:01,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:13:01,707 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:13:02,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:13:03,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:13:05,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:13:06,395 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:13:06,395 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 190 [2020-10-27 04:13:06,395 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-27 04:13:06,395 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5054 [2020-10-27 04:13:06,395 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:13:06,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 65 [2020-10-27 04:13:06,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-10-27 04:13:06,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-27 04:13:06,396 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:13:07,064 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 04:13:07,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:13:07,067 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:13:07,078 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:13:07,078 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 04:13:07,078 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:13:07,078 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-27 04:13:07,079 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:13:07,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:13:07,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:13:07,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:13:07,079 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:13:07,081 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-27 04:13:07,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:13:07,112 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:13:07,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:13:07,974 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:13:08,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:13:09,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:13:09,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:13:10,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:13:10,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:13:11,346 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:13:11,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:13:12,101 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:13:12,102 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-27 04:13:12,102 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-10-27 04:13:12,102 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-27 04:13:12,102 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:13:12,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 38 [2020-10-27 04:13:12,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:13:12,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-10-27 04:13:12,102 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:13:15,642 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 65 [2020-10-27 04:13:15,931 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 61 [2020-10-27 04:13:16,244 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 63 [2020-10-27 04:13:16,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-27 04:13:16,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:13:16,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:13:16,459 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:13:16,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:13:16,969 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:13:16,969 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-27 04:13:16,970 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 04:13:16,970 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 550 [2020-10-27 04:13:16,970 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:13:16,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-27 04:13:16,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:13:16,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-10-27 04:13:16,970 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:13:17,539 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-10-27 04:13:17,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:13:17,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:13:17,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:13:17,775 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:13:17,776 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-27 04:13:17,776 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 04:13:17,776 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 225 [2020-10-27 04:13:17,776 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:13:17,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-27 04:13:17,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 04:13:17,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-27 04:13:17,776 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:13:18,504 INFO L134 CoverageAnalysis]: Checked inductivity of 1946 backedges. 58 proven. 1510 refuted. 0 times theorem prover too weak. 378 trivial. 0 not checked. [2020-10-27 04:13:18,504 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1395335593] [2020-10-27 04:13:18,504 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 04:13:18,505 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [54] total 54 [2020-10-27 04:13:18,505 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1792292906] [2020-10-27 04:13:18,505 INFO L461 AbstractCegarLoop]: Interpolant automaton has 54 states [2020-10-27 04:13:18,506 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 04:13:18,506 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 54 interpolants. [2020-10-27 04:13:18,506 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=215, Invalid=2647, Unknown=0, NotChecked=0, Total=2862 [2020-10-27 04:13:18,507 INFO L87 Difference]: Start difference. First operand 131 states and 158 transitions. Second operand 54 states. [2020-10-27 04:13:19,431 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 53 [2020-10-27 04:13:19,589 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 48 [2020-10-27 04:13:20,279 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 49 [2020-10-27 04:13:20,620 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 93 [2020-10-27 04:13:20,831 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 43 [2020-10-27 04:13:21,150 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 91 [2020-10-27 04:13:21,398 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 54 [2020-10-27 04:13:21,786 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 48 [2020-10-27 04:13:22,232 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 58 [2020-10-27 04:13:22,474 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 56 [2020-10-27 04:13:22,753 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 53 [2020-10-27 04:13:22,967 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 50 [2020-10-27 04:13:23,357 WARN L193 SmtUtils]: Spent 318.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 107 [2020-10-27 04:13:23,758 WARN L193 SmtUtils]: Spent 302.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 104 [2020-10-27 04:13:23,970 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2020-10-27 04:13:24,141 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2020-10-27 04:13:24,460 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2020-10-27 04:13:24,626 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2020-10-27 04:13:24,994 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2020-10-27 04:13:25,165 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-10-27 04:13:25,340 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2020-10-27 04:13:25,509 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2020-10-27 04:13:25,925 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 112 [2020-10-27 04:13:26,176 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2020-10-27 04:13:26,358 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2020-10-27 04:13:26,691 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 109 [2020-10-27 04:13:26,870 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2020-10-27 04:13:27,037 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2020-10-27 04:13:27,271 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2020-10-27 04:13:27,623 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-10-27 04:13:27,829 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2020-10-27 04:13:28,012 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2020-10-27 04:13:29,056 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-10-27 04:13:29,267 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2020-10-27 04:13:29,714 WARN L193 SmtUtils]: Spent 314.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 117 [2020-10-27 04:13:30,135 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 114 [2020-10-27 04:13:30,368 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-10-27 04:13:30,572 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2020-10-27 04:13:31,070 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 04:13:31,292 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-27 04:13:31,792 WARN L193 SmtUtils]: Spent 371.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 122 [2020-10-27 04:13:32,263 WARN L193 SmtUtils]: Spent 348.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 119 [2020-10-27 04:13:32,657 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 118 [2020-10-27 04:13:33,015 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 115 [2020-10-27 04:13:33,272 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 69 [2020-10-27 04:13:33,484 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 64 [2020-10-27 04:13:33,946 WARN L193 SmtUtils]: Spent 317.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 123 [2020-10-27 04:13:34,349 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 120 [2020-10-27 04:13:34,876 WARN L193 SmtUtils]: Spent 380.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 127 [2020-10-27 04:13:35,385 WARN L193 SmtUtils]: Spent 360.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 124 [2020-10-27 04:13:35,812 WARN L193 SmtUtils]: Spent 302.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 123 [2020-10-27 04:13:36,224 WARN L193 SmtUtils]: Spent 312.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 120 [2020-10-27 04:13:36,516 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 75 [2020-10-27 04:13:36,753 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 70 [2020-10-27 04:13:37,225 WARN L193 SmtUtils]: Spent 339.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 128 [2020-10-27 04:13:37,649 WARN L193 SmtUtils]: Spent 319.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 125 [2020-10-27 04:13:38,238 WARN L193 SmtUtils]: Spent 408.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 132 [2020-10-27 04:13:38,794 WARN L193 SmtUtils]: Spent 387.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 129 [2020-10-27 04:13:39,101 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 128 [2020-10-27 04:13:39,362 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-27 04:13:40,010 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2020-10-27 04:13:40,277 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-10-27 04:13:40,911 WARN L193 SmtUtils]: Spent 463.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 137 [2020-10-27 04:13:41,515 WARN L193 SmtUtils]: Spent 419.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 134 [2020-10-27 04:13:42,034 WARN L193 SmtUtils]: Spent 367.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 133 [2020-10-27 04:13:42,530 WARN L193 SmtUtils]: Spent 369.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 130 [2020-10-27 04:13:42,872 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 87 [2020-10-27 04:13:43,155 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 82 [2020-10-27 04:13:43,577 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 94 [2020-10-27 04:13:43,959 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 89 [2020-10-27 04:13:44,778 WARN L193 SmtUtils]: Spent 557.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 104 [2020-10-27 04:13:45,425 WARN L193 SmtUtils]: Spent 437.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 101 [2020-10-27 04:13:46,047 WARN L193 SmtUtils]: Spent 394.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 100 [2020-10-27 04:13:46,584 WARN L193 SmtUtils]: Spent 393.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 97 [2020-10-27 04:13:47,232 WARN L193 SmtUtils]: Spent 453.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 134 [2020-10-27 04:13:47,787 WARN L193 SmtUtils]: Spent 426.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 131 [2020-10-27 04:13:48,441 WARN L193 SmtUtils]: Spent 449.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 130 [2020-10-27 04:13:49,113 WARN L193 SmtUtils]: Spent 453.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 127 [2020-10-27 04:13:51,069 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-27 04:13:51,376 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 91 [2020-10-27 04:13:51,714 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 97 [2020-10-27 04:13:52,002 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 93 [2020-10-27 04:13:52,167 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2020-10-27 04:13:52,361 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2020-10-27 04:13:52,573 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-10-27 04:13:53,110 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 93 [2020-10-27 04:13:53,481 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 90 [2020-10-27 04:13:53,828 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 90 [2020-10-27 04:13:54,188 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 88 [2020-10-27 04:13:54,584 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 98 [2020-10-27 04:13:54,901 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 83 [2020-10-27 04:13:55,260 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 95 [2020-10-27 04:13:55,547 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 81 [2020-10-27 04:13:56,012 WARN L193 SmtUtils]: Spent 340.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 102 [2020-10-27 04:13:56,426 WARN L193 SmtUtils]: Spent 321.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 100 [2020-10-27 04:13:56,895 WARN L193 SmtUtils]: Spent 324.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 99 [2020-10-27 04:13:57,266 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 97 [2020-10-27 04:13:57,755 WARN L193 SmtUtils]: Spent 394.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 104 [2020-10-27 04:13:58,239 WARN L193 SmtUtils]: Spent 377.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 101 [2020-10-27 04:13:58,655 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 100 [2020-10-27 04:13:59,007 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 93 [2020-10-27 04:13:59,303 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 84 [2020-10-27 04:13:59,684 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 97 [2020-10-27 04:14:00,037 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 90 [2020-10-27 04:14:00,354 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 82 [2020-10-27 04:14:00,824 WARN L193 SmtUtils]: Spent 333.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 103 [2020-10-27 04:14:01,219 WARN L193 SmtUtils]: Spent 308.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 98 [2020-10-27 04:14:01,618 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 100 [2020-10-27 04:14:01,963 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 95 [2020-10-27 04:14:02,509 WARN L193 SmtUtils]: Spent 378.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 107 [2020-10-27 04:14:03,023 WARN L193 SmtUtils]: Spent 369.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 106 [2020-10-27 04:14:03,494 WARN L193 SmtUtils]: Spent 352.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 102 [2020-10-27 04:14:03,965 WARN L193 SmtUtils]: Spent 355.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 104 [2020-10-27 04:14:04,440 WARN L193 SmtUtils]: Spent 380.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 103 [2020-10-27 04:14:04,839 WARN L193 SmtUtils]: Spent 302.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 99 [2020-10-27 04:14:05,326 WARN L193 SmtUtils]: Spent 342.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 103 [2020-10-27 04:14:05,665 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 84 [2020-10-27 04:14:06,063 WARN L193 SmtUtils]: Spent 301.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 98 [2020-10-27 04:14:06,475 WARN L193 SmtUtils]: Spent 313.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 100 [2020-10-27 04:14:06,854 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 95 [2020-10-27 04:14:07,330 WARN L193 SmtUtils]: Spent 343.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 105 [2020-10-27 04:14:07,642 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 85 [2020-10-27 04:14:08,054 WARN L193 SmtUtils]: Spent 309.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 102 [2020-10-27 04:14:08,555 WARN L193 SmtUtils]: Spent 353.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 108 [2020-10-27 04:14:09,022 WARN L193 SmtUtils]: Spent 358.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 105 [2020-10-27 04:14:09,618 WARN L193 SmtUtils]: Spent 405.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 112 [2020-10-27 04:14:10,235 WARN L193 SmtUtils]: Spent 424.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 109 [2020-10-27 04:14:10,863 WARN L193 SmtUtils]: Spent 456.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 108 [2020-10-27 04:14:11,382 WARN L193 SmtUtils]: Spent 398.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 105 [2020-10-27 04:14:11,874 WARN L193 SmtUtils]: Spent 351.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 110 [2020-10-27 04:14:12,343 WARN L193 SmtUtils]: Spent 352.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 107 [2020-10-27 04:14:12,849 WARN L193 SmtUtils]: Spent 356.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 113 [2020-10-27 04:14:13,356 WARN L193 SmtUtils]: Spent 383.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 110 [2020-10-27 04:14:14,124 WARN L193 SmtUtils]: Spent 525.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 117 [2020-10-27 04:14:14,796 WARN L193 SmtUtils]: Spent 461.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 114 [2020-10-27 04:14:15,444 WARN L193 SmtUtils]: Spent 476.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 113 [2020-10-27 04:14:16,023 WARN L193 SmtUtils]: Spent 453.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 110 [2020-10-27 04:14:16,600 WARN L193 SmtUtils]: Spent 417.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 115 [2020-10-27 04:14:17,118 WARN L193 SmtUtils]: Spent 395.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 112 [2020-10-27 04:14:17,767 WARN L193 SmtUtils]: Spent 460.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 118 [2020-10-27 04:14:18,358 WARN L193 SmtUtils]: Spent 437.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 115 [2020-10-27 04:14:19,150 WARN L193 SmtUtils]: Spent 541.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 122 [2020-10-27 04:14:19,890 WARN L193 SmtUtils]: Spent 479.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 119 [2020-10-27 04:14:20,572 WARN L193 SmtUtils]: Spent 502.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 118 [2020-10-27 04:14:21,185 WARN L193 SmtUtils]: Spent 470.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 115 [2020-10-27 04:14:21,770 WARN L193 SmtUtils]: Spent 413.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 120