/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=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.3 --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/array-tiling/mbpr5.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-29 04:07:17,490 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-29 04:07:17,493 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-29 04:07:17,547 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-29 04:07:17,548 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-29 04:07:17,555 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-29 04:07:17,557 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-29 04:07:17,562 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-29 04:07:17,565 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-29 04:07:17,574 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-29 04:07:17,576 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-29 04:07:17,577 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-29 04:07:17,577 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-29 04:07:17,581 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-29 04:07:17,582 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-29 04:07:17,583 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-29 04:07:17,584 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-29 04:07:17,585 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-29 04:07:17,587 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-29 04:07:17,590 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-29 04:07:17,592 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-29 04:07:17,594 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-29 04:07:17,596 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-29 04:07:17,597 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-29 04:07:17,600 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-29 04:07:17,601 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-29 04:07:17,601 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-29 04:07:17,602 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-29 04:07:17,603 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-29 04:07:17,604 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-29 04:07:17,605 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-29 04:07:17,606 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-29 04:07:17,607 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-29 04:07:17,608 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-29 04:07:17,609 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-29 04:07:17,609 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-29 04:07:17,610 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-29 04:07:17,610 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-29 04:07:17,611 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-29 04:07:17,622 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-29 04:07:17,623 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-29 04:07:17,627 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 [2020-10-29 04:07:17,661 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-29 04:07:17,662 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-29 04:07:17,663 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-29 04:07:17,664 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-29 04:07:17,664 INFO L138 SettingsManager]: * Use SBE=true [2020-10-29 04:07:17,664 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-29 04:07:17,665 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-29 04:07:17,665 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-29 04:07:17,665 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-29 04:07:17,665 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-29 04:07:17,665 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-29 04:07:17,666 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-29 04:07:17,666 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-29 04:07:17,666 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-29 04:07:17,666 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-29 04:07:17,667 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-29 04:07:17,667 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-29 04:07:17,667 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-29 04:07:17,667 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-29 04:07:17,668 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-29 04:07:17,668 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-29 04:07:17,668 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-29 04:07:17,668 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-29 04:07:17,669 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-29 04:07:17,669 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-29 04:07:17,669 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-29 04:07:17,669 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-29 04:07:17,670 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-29 04:07:17,670 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-29 04:07:17,670 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true;unknown-allowed=true; [2020-10-29 04:07:18,128 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-29 04:07:18,155 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-29 04:07:18,163 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-29 04:07:18,165 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-29 04:07:18,166 INFO L275 PluginConnector]: CDTParser initialized [2020-10-29 04:07:18,167 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-tiling/mbpr5.c [2020-10-29 04:07:18,261 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7db2ec41a/d03b8e77406444268e0d28207386d04a/FLAG677a9a1f9 [2020-10-29 04:07:18,907 INFO L306 CDTParser]: Found 1 translation units. [2020-10-29 04:07:18,908 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/array-tiling/mbpr5.c [2020-10-29 04:07:18,917 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7db2ec41a/d03b8e77406444268e0d28207386d04a/FLAG677a9a1f9 [2020-10-29 04:07:19,254 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7db2ec41a/d03b8e77406444268e0d28207386d04a [2020-10-29 04:07:19,258 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-29 04:07:19,264 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-29 04:07:19,266 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-29 04:07:19,267 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-29 04:07:19,271 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-29 04:07:19,272 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 04:07:19" (1/1) ... [2020-10-29 04:07:19,276 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@308e85ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:07:19, skipping insertion in model container [2020-10-29 04:07:19,276 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 04:07:19" (1/1) ... [2020-10-29 04:07:19,285 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-29 04:07:19,307 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-29 04:07:19,510 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 04:07:19,520 INFO L203 MainTranslator]: Completed pre-run [2020-10-29 04:07:19,569 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 04:07:19,587 INFO L208 MainTranslator]: Completed translation [2020-10-29 04:07:19,588 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:07:19 WrapperNode [2020-10-29 04:07:19,588 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-29 04:07:19,589 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-29 04:07:19,589 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-29 04:07:19,589 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-29 04:07:19,604 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:07:19" (1/1) ... [2020-10-29 04:07:19,604 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:07:19" (1/1) ... [2020-10-29 04:07:19,617 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:07:19" (1/1) ... [2020-10-29 04:07:19,618 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:07:19" (1/1) ... [2020-10-29 04:07:19,637 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:07:19" (1/1) ... [2020-10-29 04:07:19,645 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:07:19" (1/1) ... [2020-10-29 04:07:19,648 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:07:19" (1/1) ... [2020-10-29 04:07:19,653 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-29 04:07:19,654 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-29 04:07:19,654 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-29 04:07:19,654 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-29 04:07:19,655 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:07:19" (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 [2020-10-29 04:07:19,744 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-29 04:07:19,744 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-29 04:07:19,744 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-29 04:07:19,744 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-29 04:07:19,744 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-10-29 04:07:19,745 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-29 04:07:19,745 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-29 04:07:19,745 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-29 04:07:19,745 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-29 04:07:19,745 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-29 04:07:19,745 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-29 04:07:19,746 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-10-29 04:07:19,746 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-29 04:07:19,746 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-29 04:07:19,746 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-29 04:07:19,746 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-29 04:07:19,746 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-29 04:07:19,747 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-29 04:07:19,747 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-29 04:07:19,747 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-29 04:07:20,573 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-29 04:07:20,573 INFO L298 CfgBuilder]: Removed 6 assume(true) statements. [2020-10-29 04:07:20,575 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 04:07:20 BoogieIcfgContainer [2020-10-29 04:07:20,576 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-29 04:07:20,581 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-29 04:07:20,581 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-29 04:07:20,585 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-29 04:07:20,585 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 04:07:19" (1/3) ... [2020-10-29 04:07:20,587 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c4519b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 04:07:20, skipping insertion in model container [2020-10-29 04:07:20,587 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:07:19" (2/3) ... [2020-10-29 04:07:20,587 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c4519b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 04:07:20, skipping insertion in model container [2020-10-29 04:07:20,588 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 04:07:20" (3/3) ... [2020-10-29 04:07:20,590 INFO L111 eAbstractionObserver]: Analyzing ICFG mbpr5.c [2020-10-29 04:07:20,611 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-29 04:07:20,617 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-29 04:07:20,632 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-29 04:07:20,662 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-29 04:07:20,662 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-29 04:07:20,662 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-29 04:07:20,662 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-29 04:07:20,663 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-29 04:07:20,663 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-29 04:07:20,663 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-29 04:07:20,663 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-29 04:07:20,683 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states. [2020-10-29 04:07:20,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-10-29 04:07:20,691 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:07:20,692 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:07:20,693 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:07:20,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:07:20,700 INFO L82 PathProgramCache]: Analyzing trace with hash -1162609913, now seen corresponding path program 1 times [2020-10-29 04:07:20,710 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:07:20,711 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1738136132] [2020-10-29 04:07:20,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:07:20,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:07:21,037 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:21,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:21,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:21,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:21,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:21,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:21,431 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:21,829 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:07:21,830 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-10-29 04:07:21,830 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-29 04:07:21,830 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 877 [2020-10-29 04:07:21,833 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:07:21,834 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:07:21,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 04:07:21,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 33 [2020-10-29 04:07:21,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:07:21,835 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-29 04:07:21,968 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:07:21,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:07:21,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:21,983 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:07:21,983 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:07:21,984 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:07:21,984 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-29 04:07:21,984 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:07:21,985 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:07:21,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:07:21,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:07:21,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:07:21,986 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:07:21,993 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 04:07:21,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:07:21,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:21,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:22,003 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:07:22,004 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:07:22,004 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 04:07:22,004 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 04:07:22,005 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:07:22,005 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:07:22,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:07:22,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:07:22,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:07:22,006 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:07:22,031 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 04:07:22,032 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1738136132] [2020-10-29 04:07:22,034 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 04:07:22,034 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-29 04:07:22,035 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1605813355] [2020-10-29 04:07:22,040 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-29 04:07:22,041 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:07:22,056 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-29 04:07:22,057 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-29 04:07:22,059 INFO L87 Difference]: Start difference. First operand 60 states. Second operand 6 states. [2020-10-29 04:07:22,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:07:22,383 INFO L93 Difference]: Finished difference Result 112 states and 155 transitions. [2020-10-29 04:07:22,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-29 04:07:22,385 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 31 [2020-10-29 04:07:22,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:07:22,394 INFO L225 Difference]: With dead ends: 112 [2020-10-29 04:07:22,394 INFO L226 Difference]: Without dead ends: 57 [2020-10-29 04:07:22,398 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-29 04:07:22,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2020-10-29 04:07:22,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 56. [2020-10-29 04:07:22,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2020-10-29 04:07:22,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 67 transitions. [2020-10-29 04:07:22,449 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 67 transitions. Word has length 31 [2020-10-29 04:07:22,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:07:22,450 INFO L481 AbstractCegarLoop]: Abstraction has 56 states and 67 transitions. [2020-10-29 04:07:22,450 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-29 04:07:22,450 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 67 transitions. [2020-10-29 04:07:22,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-10-29 04:07:22,452 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:07:22,452 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:07:22,453 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-29 04:07:22,453 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:07:22,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:07:22,454 INFO L82 PathProgramCache]: Analyzing trace with hash -87236474, now seen corresponding path program 1 times [2020-10-29 04:07:22,454 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:07:22,455 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1706045701] [2020-10-29 04:07:22,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:07:22,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:07:22,493 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:22,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:22,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:22,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:22,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:22,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:22,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:23,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:23,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:23,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:24,505 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:24,525 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:24,568 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:24,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:24,622 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:24,641 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:24,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:27,490 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:07:27,490 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-10-29 04:07:27,491 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 17 [2020-10-29 04:07:27,491 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5008 [2020-10-29 04:07:27,491 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:07:27,491 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:07:27,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 04:07:27,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-29 04:07:27,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-29 04:07:27,497 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-10-29 04:07:27,705 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:07:27,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:07:27,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:27,717 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:07:27,718 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:07:27,718 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:07:27,718 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 04:07:27,718 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:07:27,719 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:07:27,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:07:27,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:07:27,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:07:27,720 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:07:27,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 04:07:27,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:07:27,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:27,734 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:07:27,734 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:07:27,735 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:07:27,735 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 04:07:27,735 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:07:27,735 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:07:27,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:07:27,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:07:27,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:07:27,736 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:07:27,741 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 04:07:27,742 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1706045701] [2020-10-29 04:07:27,742 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 04:07:27,743 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-29 04:07:27,743 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1425019944] [2020-10-29 04:07:27,744 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-29 04:07:27,745 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:07:27,746 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-29 04:07:27,746 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-29 04:07:27,746 INFO L87 Difference]: Start difference. First operand 56 states and 67 transitions. Second operand 6 states. [2020-10-29 04:07:28,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:07:28,071 INFO L93 Difference]: Finished difference Result 105 states and 133 transitions. [2020-10-29 04:07:28,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-29 04:07:28,072 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 31 [2020-10-29 04:07:28,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:07:28,077 INFO L225 Difference]: With dead ends: 105 [2020-10-29 04:07:28,077 INFO L226 Difference]: Without dead ends: 67 [2020-10-29 04:07:28,079 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-10-29 04:07:28,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2020-10-29 04:07:28,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 61. [2020-10-29 04:07:28,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2020-10-29 04:07:28,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 72 transitions. [2020-10-29 04:07:28,099 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 72 transitions. Word has length 31 [2020-10-29 04:07:28,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:07:28,099 INFO L481 AbstractCegarLoop]: Abstraction has 61 states and 72 transitions. [2020-10-29 04:07:28,099 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-29 04:07:28,100 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 72 transitions. [2020-10-29 04:07:28,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-10-29 04:07:28,102 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:07:28,102 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:07:28,102 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-29 04:07:28,102 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:07:28,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:07:28,103 INFO L82 PathProgramCache]: Analyzing trace with hash -944422039, now seen corresponding path program 1 times [2020-10-29 04:07:28,103 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:07:28,104 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [680110746] [2020-10-29 04:07:28,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:07:28,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:07:28,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:28,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:28,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:28,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:28,650 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:29,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:29,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:30,335 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:31,048 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:31,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:31,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:33,132 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:07:33,132 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 63 [2020-10-29 04:07:33,150 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 11 [2020-10-29 04:07:33,151 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-10-29 04:07:33,151 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:07:33,151 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:07:33,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:07:33,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-29 04:07:33,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-10-29 04:07:33,152 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:07:33,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:07:33,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:07:33,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:33,229 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:07:33,229 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:07:33,230 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:07:33,230 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 04:07:33,230 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:07:33,230 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:07:33,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:07:33,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:07:33,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:07:33,236 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-10-29 04:07:33,240 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 04:07:33,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:07:33,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:33,250 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:07:33,250 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:07:33,250 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:07:33,251 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 04:07:33,251 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:07:33,251 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:07:33,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:07:33,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:07:33,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:07:33,258 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 7 [2020-10-29 04:07:33,268 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-29 04:07:33,268 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [680110746] [2020-10-29 04:07:33,269 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 04:07:33,269 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-29 04:07:33,269 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1287176989] [2020-10-29 04:07:33,271 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-29 04:07:33,272 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:07:33,273 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-29 04:07:33,273 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-29 04:07:33,274 INFO L87 Difference]: Start difference. First operand 61 states and 72 transitions. Second operand 4 states. [2020-10-29 04:07:33,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:07:33,472 INFO L93 Difference]: Finished difference Result 89 states and 105 transitions. [2020-10-29 04:07:33,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-29 04:07:33,472 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 51 [2020-10-29 04:07:33,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:07:33,474 INFO L225 Difference]: With dead ends: 89 [2020-10-29 04:07:33,475 INFO L226 Difference]: Without dead ends: 61 [2020-10-29 04:07:33,477 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-29 04:07:33,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2020-10-29 04:07:33,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2020-10-29 04:07:33,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2020-10-29 04:07:33,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 71 transitions. [2020-10-29 04:07:33,500 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 71 transitions. Word has length 51 [2020-10-29 04:07:33,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:07:33,501 INFO L481 AbstractCegarLoop]: Abstraction has 61 states and 71 transitions. [2020-10-29 04:07:33,501 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-29 04:07:33,501 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 71 transitions. [2020-10-29 04:07:33,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-10-29 04:07:33,503 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:07:33,504 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:07:33,504 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-29 04:07:33,504 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:07:33,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:07:33,505 INFO L82 PathProgramCache]: Analyzing trace with hash 1049722667, now seen corresponding path program 1 times [2020-10-29 04:07:33,505 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:07:33,507 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1550209875] [2020-10-29 04:07:33,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:07:33,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:07:33,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:33,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:33,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:33,897 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:34,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:34,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:35,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:35,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:36,336 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:36,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:37,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:38,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:38,546 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:07:38,546 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 63 [2020-10-29 04:07:38,547 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 12 [2020-10-29 04:07:38,547 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-10-29 04:07:38,547 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:07:38,547 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:07:38,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:07:38,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-29 04:07:38,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-29 04:07:38,548 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:07:38,637 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:07:38,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:07:38,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:38,665 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:07:38,666 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:07:38,666 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:07:38,666 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-29 04:07:38,667 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:07:38,667 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:07:38,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:07:38,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:07:38,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:07:38,668 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:07:38,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 04:07:38,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:07:38,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:38,679 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:07:38,680 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:07:38,680 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:07:38,680 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 04:07:38,680 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:07:38,681 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:07:38,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:07:38,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:07:38,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:07:38,681 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:07:38,692 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-29 04:07:38,692 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1550209875] [2020-10-29 04:07:38,693 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 04:07:38,693 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-29 04:07:38,693 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [928902116] [2020-10-29 04:07:38,694 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-29 04:07:38,694 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:07:38,695 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-29 04:07:38,695 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-29 04:07:38,695 INFO L87 Difference]: Start difference. First operand 61 states and 71 transitions. Second operand 4 states. [2020-10-29 04:07:38,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:07:38,882 INFO L93 Difference]: Finished difference Result 83 states and 96 transitions. [2020-10-29 04:07:38,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-29 04:07:38,883 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 51 [2020-10-29 04:07:38,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:07:38,885 INFO L225 Difference]: With dead ends: 83 [2020-10-29 04:07:38,885 INFO L226 Difference]: Without dead ends: 61 [2020-10-29 04:07:38,887 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-29 04:07:38,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2020-10-29 04:07:38,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2020-10-29 04:07:38,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2020-10-29 04:07:38,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 70 transitions. [2020-10-29 04:07:38,911 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 70 transitions. Word has length 51 [2020-10-29 04:07:38,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:07:38,911 INFO L481 AbstractCegarLoop]: Abstraction has 61 states and 70 transitions. [2020-10-29 04:07:38,911 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-29 04:07:38,912 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 70 transitions. [2020-10-29 04:07:38,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-10-29 04:07:38,912 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:07:38,913 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:07:38,916 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-29 04:07:38,917 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:07:38,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:07:38,917 INFO L82 PathProgramCache]: Analyzing trace with hash 1307888105, now seen corresponding path program 1 times [2020-10-29 04:07:38,918 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:07:38,919 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [944728390] [2020-10-29 04:07:38,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:07:38,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:07:38,980 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:39,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:39,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:39,659 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:39,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:40,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:40,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:40,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:41,220 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:41,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:41,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:43,158 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:43,287 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:43,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:44,086 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:07:44,086 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 63 [2020-10-29 04:07:44,086 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 14 [2020-10-29 04:07:44,087 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5123 [2020-10-29 04:07:44,087 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:07:44,087 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:07:44,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-10-29 04:07:44,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-29 04:07:44,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-10-29 04:07:44,089 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:07:44,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:07:44,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:07:44,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:44,422 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:07:44,422 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:07:44,422 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:07:44,423 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 04:07:44,423 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:07:44,423 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:07:44,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:07:44,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:07:44,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:07:44,424 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:07:44,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 04:07:44,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:07:44,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:44,432 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:07:44,433 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:07:44,433 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:07:44,433 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:07:44,433 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:07:44,433 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:07:44,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:07:44,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:07:44,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:07:44,434 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:07:44,445 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-29 04:07:44,446 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [944728390] [2020-10-29 04:07:44,446 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:07:44,447 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-29 04:07:44,447 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [647289413] [2020-10-29 04:07:44,447 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-29 04:07:44,448 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:07:44,448 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-29 04:07:44,448 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-10-29 04:07:44,449 INFO L87 Difference]: Start difference. First operand 61 states and 70 transitions. Second operand 10 states. [2020-10-29 04:07:45,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:07:45,127 INFO L93 Difference]: Finished difference Result 144 states and 171 transitions. [2020-10-29 04:07:45,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-29 04:07:45,128 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 51 [2020-10-29 04:07:45,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:07:45,130 INFO L225 Difference]: With dead ends: 144 [2020-10-29 04:07:45,130 INFO L226 Difference]: Without dead ends: 141 [2020-10-29 04:07:45,131 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 9 SyntacticMatches, 4 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=61, Invalid=245, Unknown=0, NotChecked=0, Total=306 [2020-10-29 04:07:45,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2020-10-29 04:07:45,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 92. [2020-10-29 04:07:45,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 92 states. [2020-10-29 04:07:45,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 110 transitions. [2020-10-29 04:07:45,153 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 110 transitions. Word has length 51 [2020-10-29 04:07:45,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:07:45,153 INFO L481 AbstractCegarLoop]: Abstraction has 92 states and 110 transitions. [2020-10-29 04:07:45,153 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-29 04:07:45,153 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 110 transitions. [2020-10-29 04:07:45,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-10-29 04:07:45,155 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:07:45,156 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:07:45,156 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-29 04:07:45,157 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:07:45,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:07:45,157 INFO L82 PathProgramCache]: Analyzing trace with hash 1702254891, now seen corresponding path program 1 times [2020-10-29 04:07:45,157 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:07:45,158 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [397022048] [2020-10-29 04:07:45,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:07:45,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:07:45,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:45,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:45,831 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:46,065 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:46,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:46,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:48,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:48,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:49,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:50,197 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:07:50,197 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 63 [2020-10-29 04:07:50,198 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-29 04:07:50,198 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-29 04:07:50,198 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:07:50,198 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:07:50,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-29 04:07:50,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-29 04:07:50,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-10-29 04:07:50,199 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:07:50,463 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:07:50,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:07:50,468 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:50,472 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:07:50,472 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:07:50,472 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:07:50,472 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 04:07:50,473 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:07:50,482 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:07:50,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:07:50,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:07:50,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:07:50,485 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 12 [2020-10-29 04:07:50,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 04:07:50,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:07:50,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:50,496 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:07:50,497 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:07:50,498 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:07:50,498 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:07:50,499 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:07:50,499 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:07:50,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:07:50,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:07:50,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:07:50,500 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:07:50,509 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-29 04:07:50,510 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [397022048] [2020-10-29 04:07:50,511 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:07:50,511 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-29 04:07:50,512 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1352824655] [2020-10-29 04:07:50,513 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-29 04:07:50,514 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:07:50,514 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-29 04:07:50,515 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2020-10-29 04:07:50,515 INFO L87 Difference]: Start difference. First operand 92 states and 110 transitions. Second operand 8 states. [2020-10-29 04:07:51,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:07:51,049 INFO L93 Difference]: Finished difference Result 199 states and 239 transitions. [2020-10-29 04:07:51,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-29 04:07:51,051 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 51 [2020-10-29 04:07:51,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:07:51,055 INFO L225 Difference]: With dead ends: 199 [2020-10-29 04:07:51,056 INFO L226 Difference]: Without dead ends: 182 [2020-10-29 04:07:51,057 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 9 SyntacticMatches, 4 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2020-10-29 04:07:51,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2020-10-29 04:07:51,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 124. [2020-10-29 04:07:51,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 124 states. [2020-10-29 04:07:51,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 151 transitions. [2020-10-29 04:07:51,093 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 151 transitions. Word has length 51 [2020-10-29 04:07:51,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:07:51,093 INFO L481 AbstractCegarLoop]: Abstraction has 124 states and 151 transitions. [2020-10-29 04:07:51,094 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-29 04:07:51,094 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 151 transitions. [2020-10-29 04:07:51,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2020-10-29 04:07:51,101 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:07:51,101 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:07:51,101 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-29 04:07:51,102 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:07:51,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:07:51,102 INFO L82 PathProgramCache]: Analyzing trace with hash -898623900, now seen corresponding path program 1 times [2020-10-29 04:07:51,103 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:07:51,103 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1325689348] [2020-10-29 04:07:51,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:07:51,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:07:51,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:51,169 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:51,203 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:51,263 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:51,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:56,146 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:07:56,146 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 67 [2020-10-29 04:07:56,146 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-29 04:07:56,146 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5010 [2020-10-29 04:07:56,147 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:07:56,148 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:07:56,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 04:07:56,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-29 04:07:56,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-29 04:07:56,148 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:07:56,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:07:56,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:07:56,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:56,337 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:07:56,337 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:07:56,337 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:07:56,337 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:07:56,338 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:07:56,338 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:07:56,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:07:56,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:07:56,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:07:56,338 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:07:56,341 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 04:07:56,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:07:56,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:56,344 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:07:56,345 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:07:56,345 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:07:56,345 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:07:56,345 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:07:56,345 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:07:56,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:07:56,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:07:56,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:07:56,346 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:07:56,355 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-29 04:07:56,355 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1325689348] [2020-10-29 04:07:56,356 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:07:56,356 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-29 04:07:56,356 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1294383991] [2020-10-29 04:07:56,357 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-29 04:07:56,357 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:07:56,357 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-29 04:07:56,358 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2020-10-29 04:07:56,358 INFO L87 Difference]: Start difference. First operand 124 states and 151 transitions. Second operand 8 states. [2020-10-29 04:07:57,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:07:57,267 INFO L93 Difference]: Finished difference Result 339 states and 420 transitions. [2020-10-29 04:07:57,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-29 04:07:57,268 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 55 [2020-10-29 04:07:57,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:07:57,271 INFO L225 Difference]: With dead ends: 339 [2020-10-29 04:07:57,271 INFO L226 Difference]: Without dead ends: 261 [2020-10-29 04:07:57,272 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=56, Invalid=154, Unknown=0, NotChecked=0, Total=210 [2020-10-29 04:07:57,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 261 states. [2020-10-29 04:07:57,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 261 to 216. [2020-10-29 04:07:57,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 216 states. [2020-10-29 04:07:57,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 261 transitions. [2020-10-29 04:07:57,298 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 261 transitions. Word has length 55 [2020-10-29 04:07:57,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:07:57,298 INFO L481 AbstractCegarLoop]: Abstraction has 216 states and 261 transitions. [2020-10-29 04:07:57,298 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-29 04:07:57,298 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 261 transitions. [2020-10-29 04:07:57,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2020-10-29 04:07:57,300 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:07:57,300 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:07:57,301 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-29 04:07:57,301 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:07:57,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:07:57,301 INFO L82 PathProgramCache]: Analyzing trace with hash -1635048239, now seen corresponding path program 1 times [2020-10-29 04:07:57,302 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:07:57,302 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [963067441] [2020-10-29 04:07:57,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:07:57,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:07:57,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:57,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:57,548 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:57,752 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:57,957 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:58,109 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:58,319 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:59,270 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:00,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:00,463 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:00,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:00,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:01,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:02,326 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:08:02,326 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-29 04:08:02,326 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 13 [2020-10-29 04:08:02,327 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-29 04:08:02,327 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:08:02,327 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:08:02,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-29 04:08:02,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 27 [2020-10-29 04:08:02,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-10-29 04:08:02,328 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:08:02,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:08:02,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:08:02,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:02,591 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:08:02,592 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:08:02,592 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:08:02,592 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:08:02,592 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:08:02,592 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:08:02,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:08:02,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:08:02,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:08:02,593 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:08:02,596 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 04:08:02,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:08:02,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:02,599 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:08:02,600 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:08:02,600 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:08:02,601 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:08:02,601 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:08:02,601 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:08:02,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:08:02,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:08:02,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:08:02,602 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:08:02,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-29 04:08:02,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:08:02,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:02,611 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:08:02,611 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:08:02,611 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:08:02,611 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:08:02,612 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:08:02,612 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:08:02,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:08:02,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:08:02,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:08:02,612 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:08:02,627 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-29 04:08:02,627 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [963067441] [2020-10-29 04:08:02,628 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:08:02,628 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-29 04:08:02,628 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1150585014] [2020-10-29 04:08:02,629 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-29 04:08:02,629 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:08:02,630 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-29 04:08:02,630 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-10-29 04:08:02,630 INFO L87 Difference]: Start difference. First operand 216 states and 261 transitions. Second operand 9 states. [2020-10-29 04:08:03,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:08:03,426 INFO L93 Difference]: Finished difference Result 473 states and 569 transitions. [2020-10-29 04:08:03,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-29 04:08:03,444 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 60 [2020-10-29 04:08:03,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:08:03,447 INFO L225 Difference]: With dead ends: 473 [2020-10-29 04:08:03,447 INFO L226 Difference]: Without dead ends: 456 [2020-10-29 04:08:03,448 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 10 SyntacticMatches, 3 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=59, Invalid=181, Unknown=0, NotChecked=0, Total=240 [2020-10-29 04:08:03,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 456 states. [2020-10-29 04:08:03,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 456 to 372. [2020-10-29 04:08:03,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 372 states. [2020-10-29 04:08:03,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 372 states to 372 states and 450 transitions. [2020-10-29 04:08:03,496 INFO L78 Accepts]: Start accepts. Automaton has 372 states and 450 transitions. Word has length 60 [2020-10-29 04:08:03,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:08:03,496 INFO L481 AbstractCegarLoop]: Abstraction has 372 states and 450 transitions. [2020-10-29 04:08:03,496 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-29 04:08:03,497 INFO L276 IsEmpty]: Start isEmpty. Operand 372 states and 450 transitions. [2020-10-29 04:08:03,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2020-10-29 04:08:03,502 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:08:03,502 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:08:03,502 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-29 04:08:03,502 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:08:03,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:08:03,503 INFO L82 PathProgramCache]: Analyzing trace with hash 814551891, now seen corresponding path program 1 times [2020-10-29 04:08:03,503 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:08:03,504 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [570819813] [2020-10-29 04:08:03,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:08:03,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:08:03,521 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:03,534 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:03,624 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:03,831 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:04,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:04,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:04,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:04,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:04,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:05,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:05,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:06,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:07,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:07,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:07,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:08,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:08,524 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:08:08,524 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-29 04:08:08,524 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 16 [2020-10-29 04:08:08,525 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5008 [2020-10-29 04:08:08,525 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:08:08,525 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:08:08,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-29 04:08:08,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-29 04:08:08,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-29 04:08:08,526 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:08:08,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:08:08,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:08:08,910 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:08,918 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:08:08,918 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:08:08,918 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:08:08,918 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-29 04:08:08,918 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:08:08,919 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:08:08,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:08:08,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:08:08,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:08:08,919 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:08:08,926 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 04:08:08,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:08:08,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:08,932 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:08:08,932 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:08:08,932 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:08:08,933 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:08:08,933 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:08:08,933 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:08:08,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:08:08,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:08:08,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:08:08,934 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:08:08,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-29 04:08:08,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:08:08,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:08,942 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:08:08,942 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:08:08,942 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:08:08,942 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 04:08:08,943 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:08:08,943 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:08:08,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:08:08,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:08:08,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:08:08,943 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:08:08,961 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-29 04:08:08,962 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [570819813] [2020-10-29 04:08:08,962 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:08:08,962 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-29 04:08:08,963 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [852593038] [2020-10-29 04:08:08,964 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-29 04:08:08,968 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:08:08,969 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-29 04:08:08,970 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2020-10-29 04:08:08,970 INFO L87 Difference]: Start difference. First operand 372 states and 450 transitions. Second operand 13 states. [2020-10-29 04:08:10,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:08:10,279 INFO L93 Difference]: Finished difference Result 481 states and 581 transitions. [2020-10-29 04:08:10,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-29 04:08:10,279 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 60 [2020-10-29 04:08:10,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:08:10,283 INFO L225 Difference]: With dead ends: 481 [2020-10-29 04:08:10,284 INFO L226 Difference]: Without dead ends: 464 [2020-10-29 04:08:10,288 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 10 SyntacticMatches, 4 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 108 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=113, Invalid=393, Unknown=0, NotChecked=0, Total=506 [2020-10-29 04:08:10,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 464 states. [2020-10-29 04:08:10,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 464 to 409. [2020-10-29 04:08:10,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 409 states. [2020-10-29 04:08:10,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 409 states to 409 states and 495 transitions. [2020-10-29 04:08:10,334 INFO L78 Accepts]: Start accepts. Automaton has 409 states and 495 transitions. Word has length 60 [2020-10-29 04:08:10,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:08:10,335 INFO L481 AbstractCegarLoop]: Abstraction has 409 states and 495 transitions. [2020-10-29 04:08:10,336 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-29 04:08:10,336 INFO L276 IsEmpty]: Start isEmpty. Operand 409 states and 495 transitions. [2020-10-29 04:08:10,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2020-10-29 04:08:10,338 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:08:10,338 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:08:10,339 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-29 04:08:10,339 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:08:10,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:08:10,340 INFO L82 PathProgramCache]: Analyzing trace with hash -465311787, now seen corresponding path program 1 times [2020-10-29 04:08:10,340 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:08:10,341 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1388010954] [2020-10-29 04:08:10,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:08:10,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:08:10,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:10,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:10,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:10,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:10,920 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:11,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:11,326 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:11,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:11,826 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:12,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:13,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:13,158 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:15,356 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:08:15,356 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-29 04:08:15,356 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 12 [2020-10-29 04:08:15,356 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-29 04:08:15,356 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:08:15,356 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:08:15,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-29 04:08:15,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 27 [2020-10-29 04:08:15,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-10-29 04:08:15,357 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:08:15,576 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:08:15,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:08:15,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:15,582 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:08:15,582 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:08:15,582 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:08:15,582 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:08:15,582 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:08:15,582 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:08:15,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:08:15,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:08:15,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:08:15,583 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:08:15,584 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 04:08:15,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:08:15,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:15,587 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:08:15,587 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:08:15,587 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:08:15,588 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:08:15,588 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:08:15,588 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:08:15,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:08:15,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:08:15,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:08:15,588 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:08:15,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-29 04:08:15,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:08:15,592 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:15,593 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:08:15,594 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:08:15,594 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:08:15,594 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:08:15,594 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:08:15,594 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:08:15,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:08:15,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:08:15,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:08:15,595 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:08:15,607 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-29 04:08:15,608 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1388010954] [2020-10-29 04:08:15,608 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:08:15,608 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-10-29 04:08:15,608 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [162018306] [2020-10-29 04:08:15,609 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-29 04:08:15,609 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:08:15,610 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-29 04:08:15,610 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-10-29 04:08:15,610 INFO L87 Difference]: Start difference. First operand 409 states and 495 transitions. Second operand 11 states. [2020-10-29 04:08:16,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:08:16,682 INFO L93 Difference]: Finished difference Result 608 states and 732 transitions. [2020-10-29 04:08:16,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-29 04:08:16,683 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 60 [2020-10-29 04:08:16,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:08:16,688 INFO L225 Difference]: With dead ends: 608 [2020-10-29 04:08:16,688 INFO L226 Difference]: Without dead ends: 605 [2020-10-29 04:08:16,689 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 12 SyntacticMatches, 2 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=78, Invalid=342, Unknown=0, NotChecked=0, Total=420 [2020-10-29 04:08:16,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 605 states. [2020-10-29 04:08:16,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 605 to 494. [2020-10-29 04:08:16,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 494 states. [2020-10-29 04:08:16,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 494 states to 494 states and 598 transitions. [2020-10-29 04:08:16,731 INFO L78 Accepts]: Start accepts. Automaton has 494 states and 598 transitions. Word has length 60 [2020-10-29 04:08:16,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:08:16,732 INFO L481 AbstractCegarLoop]: Abstraction has 494 states and 598 transitions. [2020-10-29 04:08:16,732 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-29 04:08:16,732 INFO L276 IsEmpty]: Start isEmpty. Operand 494 states and 598 transitions. [2020-10-29 04:08:16,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-10-29 04:08:16,734 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:08:16,734 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:08:16,735 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-29 04:08:16,735 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:08:16,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:08:16,735 INFO L82 PathProgramCache]: Analyzing trace with hash -888631575, now seen corresponding path program 2 times [2020-10-29 04:08:16,736 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:08:16,736 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [278097632] [2020-10-29 04:08:16,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:08:16,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:08:16,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:16,778 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:16,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:17,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:17,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:17,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:17,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:17,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:17,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:17,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:17,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:18,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:18,101 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:18,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:18,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:18,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:19,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:19,154 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:19,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:20,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:21,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:21,753 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:08:21,753 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-10-29 04:08:21,753 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 21 [2020-10-29 04:08:21,753 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-10-29 04:08:21,754 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:08:21,754 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:08:21,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-29 04:08:21,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-29 04:08:21,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-29 04:08:21,754 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:08:22,170 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 43 [2020-10-29 04:08:22,387 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:08:22,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:08:22,394 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:22,396 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:08:22,397 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:08:22,397 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:08:22,397 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 04:08:22,397 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:08:22,398 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:08:22,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:08:22,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:08:22,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:08:22,398 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:08:22,401 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 04:08:22,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:08:22,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:22,405 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:08:22,405 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:08:22,406 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:08:22,406 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:08:22,406 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:08:22,406 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:08:22,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:08:22,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:08:22,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:08:22,407 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:08:22,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-29 04:08:22,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:08:22,413 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:22,416 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:08:22,416 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:08:22,416 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:08:22,417 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:08:22,417 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:08:22,417 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:08:22,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:08:22,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:08:22,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:08:22,418 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:08:22,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-29 04:08:22,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:08:22,426 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:22,429 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:08:22,429 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:08:22,429 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:08:22,429 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:08:22,429 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:08:22,430 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:08:22,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:08:22,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:08:22,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:08:22,430 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:08:22,457 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 6 proven. 11 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-10-29 04:08:22,457 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [278097632] [2020-10-29 04:08:22,457 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:08:22,457 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-10-29 04:08:22,458 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [823827660] [2020-10-29 04:08:22,458 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-29 04:08:22,458 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:08:22,459 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-29 04:08:22,459 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2020-10-29 04:08:22,459 INFO L87 Difference]: Start difference. First operand 494 states and 598 transitions. Second operand 14 states. [2020-10-29 04:08:26,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:08:26,770 INFO L93 Difference]: Finished difference Result 1865 states and 2213 transitions. [2020-10-29 04:08:26,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2020-10-29 04:08:26,771 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 69 [2020-10-29 04:08:26,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:08:26,790 INFO L225 Difference]: With dead ends: 1865 [2020-10-29 04:08:26,790 INFO L226 Difference]: Without dead ends: 1848 [2020-10-29 04:08:26,794 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 13 SyntacticMatches, 3 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1515 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=717, Invalid=3975, Unknown=0, NotChecked=0, Total=4692 [2020-10-29 04:08:26,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1848 states. [2020-10-29 04:08:26,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1848 to 1263. [2020-10-29 04:08:26,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1263 states. [2020-10-29 04:08:26,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1263 states to 1263 states and 1509 transitions. [2020-10-29 04:08:26,933 INFO L78 Accepts]: Start accepts. Automaton has 1263 states and 1509 transitions. Word has length 69 [2020-10-29 04:08:26,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:08:26,933 INFO L481 AbstractCegarLoop]: Abstraction has 1263 states and 1509 transitions. [2020-10-29 04:08:26,933 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-29 04:08:26,933 INFO L276 IsEmpty]: Start isEmpty. Operand 1263 states and 1509 transitions. [2020-10-29 04:08:26,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-10-29 04:08:26,943 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:08:26,943 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:08:26,944 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-29 04:08:26,944 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:08:26,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:08:26,944 INFO L82 PathProgramCache]: Analyzing trace with hash -640485081, now seen corresponding path program 1 times [2020-10-29 04:08:26,945 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:08:26,945 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1194054770] [2020-10-29 04:08:26,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:08:26,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:08:26,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:26,974 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:27,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:27,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:27,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:27,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:27,894 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:27,953 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:28,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:28,507 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:28,715 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:29,535 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:29,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:30,044 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:30,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:30,629 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:31,221 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:31,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:31,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:31,968 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:08:31,969 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-10-29 04:08:31,969 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 19 [2020-10-29 04:08:31,969 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-10-29 04:08:31,969 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:08:31,969 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:08:31,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-29 04:08:31,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-29 04:08:31,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-29 04:08:31,970 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:08:32,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:08:32,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:08:32,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:32,332 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:08:32,333 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:08:32,333 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:08:32,333 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:08:32,333 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:08:32,333 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:08:32,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:08:32,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:08:32,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:08:32,334 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:08:32,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 04:08:32,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:08:32,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:32,340 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:08:32,340 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:08:32,340 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:08:32,341 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:08:32,341 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:08:32,341 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:08:32,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:08:32,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:08:32,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:08:32,342 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:08:32,343 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-29 04:08:32,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:08:32,345 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:32,347 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:08:32,347 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:08:32,347 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:08:32,347 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:08:32,348 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:08:32,348 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:08:32,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:08:32,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:08:32,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:08:32,348 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:08:32,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-29 04:08:32,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:08:32,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:32,359 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:08:32,359 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:08:32,359 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:08:32,359 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:08:32,359 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:08:32,360 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:08:32,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:08:32,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:08:32,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:08:32,360 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:08:32,384 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 6 proven. 11 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-10-29 04:08:32,385 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1194054770] [2020-10-29 04:08:32,385 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:08:32,385 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-10-29 04:08:32,385 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1733466744] [2020-10-29 04:08:32,386 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-29 04:08:32,387 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:08:32,387 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-29 04:08:32,388 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2020-10-29 04:08:32,388 INFO L87 Difference]: Start difference. First operand 1263 states and 1509 transitions. Second operand 14 states. [2020-10-29 04:08:33,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:08:33,754 INFO L93 Difference]: Finished difference Result 1760 states and 2127 transitions. [2020-10-29 04:08:33,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-29 04:08:33,755 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 69 [2020-10-29 04:08:33,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:08:33,765 INFO L225 Difference]: With dead ends: 1760 [2020-10-29 04:08:33,765 INFO L226 Difference]: Without dead ends: 1729 [2020-10-29 04:08:33,767 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 12 SyntacticMatches, 4 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 123 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=120, Invalid=480, Unknown=0, NotChecked=0, Total=600 [2020-10-29 04:08:33,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1729 states. [2020-10-29 04:08:33,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1729 to 1446. [2020-10-29 04:08:33,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1446 states. [2020-10-29 04:08:33,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1446 states to 1446 states and 1725 transitions. [2020-10-29 04:08:33,889 INFO L78 Accepts]: Start accepts. Automaton has 1446 states and 1725 transitions. Word has length 69 [2020-10-29 04:08:33,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:08:33,890 INFO L481 AbstractCegarLoop]: Abstraction has 1446 states and 1725 transitions. [2020-10-29 04:08:33,890 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-29 04:08:33,890 INFO L276 IsEmpty]: Start isEmpty. Operand 1446 states and 1725 transitions. [2020-10-29 04:08:33,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-10-29 04:08:33,894 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:08:33,894 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:08:33,894 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-29 04:08:33,894 INFO L429 AbstractCegarLoop]: === Iteration 13 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:08:33,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:08:33,895 INFO L82 PathProgramCache]: Analyzing trace with hash -774498587, now seen corresponding path program 2 times [2020-10-29 04:08:33,895 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:08:33,895 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [985432180] [2020-10-29 04:08:33,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:08:33,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:08:33,910 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:33,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:33,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:34,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:34,133 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:34,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:34,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:34,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:34,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:34,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:34,897 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:35,017 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:35,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:35,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:35,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:35,614 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:36,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:38,908 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:08:38,908 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-10-29 04:08:38,908 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 17 [2020-10-29 04:08:38,908 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-29 04:08:38,908 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:08:38,908 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:08:38,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-29 04:08:38,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 33 [2020-10-29 04:08:38,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-10-29 04:08:38,909 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:08:39,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:08:39,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:08:39,117 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:39,120 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:08:39,120 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:08:39,120 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:08:39,120 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:08:39,121 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:08:39,121 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:08:39,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:08:39,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:08:39,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:08:39,121 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:08:39,123 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 04:08:39,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:08:39,124 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:39,125 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:08:39,125 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:08:39,126 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:08:39,126 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:08:39,126 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:08:39,126 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:08:39,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:08:39,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:08:39,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:08:39,126 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:08:39,127 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-29 04:08:39,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:08:39,129 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:39,130 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:08:39,130 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:08:39,130 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:08:39,131 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:08:39,131 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:08:39,131 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:08:39,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:08:39,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:08:39,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:08:39,131 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:08:39,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-29 04:08:39,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:08:39,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:39,135 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:08:39,135 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:08:39,135 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:08:39,136 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:08:39,136 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:08:39,136 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:08:39,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:08:39,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:08:39,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:08:39,137 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:08:39,149 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 4 proven. 12 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-29 04:08:39,149 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [985432180] [2020-10-29 04:08:39,149 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:08:39,149 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-29 04:08:39,150 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [691552602] [2020-10-29 04:08:39,150 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-29 04:08:39,150 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:08:39,151 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-29 04:08:39,151 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2020-10-29 04:08:39,151 INFO L87 Difference]: Start difference. First operand 1446 states and 1725 transitions. Second operand 12 states. [2020-10-29 04:08:40,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:08:40,496 INFO L93 Difference]: Finished difference Result 2165 states and 2576 transitions. [2020-10-29 04:08:40,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-29 04:08:40,497 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 69 [2020-10-29 04:08:40,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:08:40,511 INFO L225 Difference]: With dead ends: 2165 [2020-10-29 04:08:40,511 INFO L226 Difference]: Without dead ends: 2162 [2020-10-29 04:08:40,513 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 13 SyntacticMatches, 2 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=81, Invalid=425, Unknown=0, NotChecked=0, Total=506 [2020-10-29 04:08:40,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2162 states. [2020-10-29 04:08:40,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2162 to 1793. [2020-10-29 04:08:40,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1793 states. [2020-10-29 04:08:40,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1793 states to 1793 states and 2151 transitions. [2020-10-29 04:08:40,678 INFO L78 Accepts]: Start accepts. Automaton has 1793 states and 2151 transitions. Word has length 69 [2020-10-29 04:08:40,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:08:40,678 INFO L481 AbstractCegarLoop]: Abstraction has 1793 states and 2151 transitions. [2020-10-29 04:08:40,678 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-29 04:08:40,678 INFO L276 IsEmpty]: Start isEmpty. Operand 1793 states and 2151 transitions. [2020-10-29 04:08:40,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2020-10-29 04:08:40,683 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:08:40,684 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:08:40,684 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-29 04:08:40,684 INFO L429 AbstractCegarLoop]: === Iteration 14 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:08:40,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:08:40,684 INFO L82 PathProgramCache]: Analyzing trace with hash -1495535858, now seen corresponding path program 2 times [2020-10-29 04:08:40,685 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:08:40,685 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [208220254] [2020-10-29 04:08:40,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:08:40,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:08:40,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:40,715 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:40,925 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:08:40,925 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-10-29 04:08:40,925 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 04:08:40,925 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 223 [2020-10-29 04:08:40,926 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:08:40,926 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:08:40,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:08:40,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-29 04:08:40,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-29 04:08:40,926 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:08:40,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:08:40,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:08:40,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:40,973 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:08:40,973 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:08:40,973 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:08:40,973 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:08:40,973 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:08:40,973 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:08:40,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:08:40,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:08:40,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:08:40,974 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:08:40,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 04:08:40,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:08:40,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:40,980 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:08:40,980 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:08:40,980 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:08:40,980 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:08:40,980 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:08:40,980 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:08:40,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:08:40,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:08:40,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:08:40,981 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:08:40,985 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2020-10-29 04:08:40,985 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [208220254] [2020-10-29 04:08:40,985 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 04:08:40,985 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-29 04:08:40,985 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1585244629] [2020-10-29 04:08:40,986 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-29 04:08:40,986 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:08:40,986 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-29 04:08:40,986 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-29 04:08:40,987 INFO L87 Difference]: Start difference. First operand 1793 states and 2151 transitions. Second operand 4 states. [2020-10-29 04:08:41,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:08:41,227 INFO L93 Difference]: Finished difference Result 1937 states and 2331 transitions. [2020-10-29 04:08:41,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-29 04:08:41,228 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 71 [2020-10-29 04:08:41,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:08:41,232 INFO L225 Difference]: With dead ends: 1937 [2020-10-29 04:08:41,233 INFO L226 Difference]: Without dead ends: 813 [2020-10-29 04:08:41,237 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-29 04:08:41,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 813 states. [2020-10-29 04:08:41,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 813 to 573. [2020-10-29 04:08:41,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 573 states. [2020-10-29 04:08:41,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 573 states to 573 states and 684 transitions. [2020-10-29 04:08:41,292 INFO L78 Accepts]: Start accepts. Automaton has 573 states and 684 transitions. Word has length 71 [2020-10-29 04:08:41,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:08:41,292 INFO L481 AbstractCegarLoop]: Abstraction has 573 states and 684 transitions. [2020-10-29 04:08:41,293 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-29 04:08:41,293 INFO L276 IsEmpty]: Start isEmpty. Operand 573 states and 684 transitions. [2020-10-29 04:08:41,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2020-10-29 04:08:41,295 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:08:41,296 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:08:41,296 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-29 04:08:41,296 INFO L429 AbstractCegarLoop]: === Iteration 15 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:08:41,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:08:41,296 INFO L82 PathProgramCache]: Analyzing trace with hash -72822809, now seen corresponding path program 1 times [2020-10-29 04:08:41,297 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:08:41,297 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [244351677] [2020-10-29 04:08:41,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:08:41,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:08:41,320 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:41,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:41,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:41,408 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:41,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:46,323 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:08:46,323 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 90 [2020-10-29 04:08:46,323 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-29 04:08:46,323 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5011 [2020-10-29 04:08:46,323 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:08:46,324 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:08:46,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 04:08:46,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-29 04:08:46,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-10-29 04:08:46,324 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:08:46,420 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:08:46,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:08:46,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:46,426 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:08:46,426 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:08:46,426 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:08:46,426 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:08:46,426 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:08:46,426 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:08:46,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:08:46,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:08:46,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:08:46,427 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:08:46,428 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 04:08:46,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:08:46,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:46,431 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:08:46,431 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:08:46,431 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:08:46,431 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:08:46,432 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:08:46,432 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:08:46,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:08:46,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:08:46,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:08:46,432 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:08:46,433 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-29 04:08:46,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:08:46,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:46,436 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:08:46,436 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:08:46,436 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:08:46,436 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:08:46,436 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:08:46,436 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:08:46,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:08:46,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 04:08:46,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:08:46,437 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:08:46,446 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2020-10-29 04:08:46,446 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [244351677] [2020-10-29 04:08:46,447 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:08:46,447 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-29 04:08:46,447 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [967949721] [2020-10-29 04:08:46,447 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-29 04:08:46,448 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:08:46,448 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-29 04:08:46,448 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2020-10-29 04:08:46,448 INFO L87 Difference]: Start difference. First operand 573 states and 684 transitions. Second operand 8 states. [2020-10-29 04:08:47,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:08:47,110 INFO L93 Difference]: Finished difference Result 1013 states and 1190 transitions. [2020-10-29 04:08:47,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-29 04:08:47,111 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 76 [2020-10-29 04:08:47,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:08:47,116 INFO L225 Difference]: With dead ends: 1013 [2020-10-29 04:08:47,116 INFO L226 Difference]: Without dead ends: 638 [2020-10-29 04:08:47,117 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2020-10-29 04:08:47,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 638 states. [2020-10-29 04:08:47,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 638 to 528. [2020-10-29 04:08:47,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 528 states. [2020-10-29 04:08:47,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 528 states to 528 states and 611 transitions. [2020-10-29 04:08:47,175 INFO L78 Accepts]: Start accepts. Automaton has 528 states and 611 transitions. Word has length 76 [2020-10-29 04:08:47,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:08:47,176 INFO L481 AbstractCegarLoop]: Abstraction has 528 states and 611 transitions. [2020-10-29 04:08:47,176 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-29 04:08:47,176 INFO L276 IsEmpty]: Start isEmpty. Operand 528 states and 611 transitions. [2020-10-29 04:08:47,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2020-10-29 04:08:47,178 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:08:47,178 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:08:47,178 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-29 04:08:47,178 INFO L429 AbstractCegarLoop]: === Iteration 16 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:08:47,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:08:47,179 INFO L82 PathProgramCache]: Analyzing trace with hash -1010436273, now seen corresponding path program 1 times [2020-10-29 04:08:47,179 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:08:47,179 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [921783308] [2020-10-29 04:08:47,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:08:47,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:08:47,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:47,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:47,358 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:47,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:47,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:47,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:47,568 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:47,614 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:47,880 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:48,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:52,202 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:08:52,203 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-10-29 04:08:52,203 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-10-29 04:08:52,203 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-29 04:08:52,203 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:08:52,203 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:08:52,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-29 04:08:52,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-29 04:08:52,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-29 04:08:52,204 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:08:52,712 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 25 [2020-10-29 04:08:52,839 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 19 [2020-10-29 04:08:53,017 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 28 [2020-10-29 04:08:53,171 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 30 [2020-10-29 04:08:53,327 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 29 [2020-10-29 04:08:53,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:08:53,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:08:53,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:53,506 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:08:53,506 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:08:53,506 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:08:53,506 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:08:53,506 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:08:53,506 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:08:53,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:08:53,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:08:53,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:08:53,507 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:08:53,508 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 04:08:53,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:08:53,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:53,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:53,516 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:08:53,516 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:08:53,516 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 04:08:53,516 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 04:08:53,516 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:08:53,516 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:08:53,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:08:53,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:08:53,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:08:53,517 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:08:53,519 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-29 04:08:53,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:08:53,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:53,524 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:08:53,524 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:08:53,524 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:08:53,525 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:08:53,525 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:08:53,525 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:08:53,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:08:53,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:08:53,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:08:53,525 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:08:53,527 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-29 04:08:53,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:08:53,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:53,533 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:08:53,533 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:08:53,533 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:08:53,533 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 04:08:53,533 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:08:53,533 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:08:53,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:08:53,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:08:53,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:08:53,534 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:08:53,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-29 04:08:53,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:08:53,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:53,542 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:08:53,542 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:08:53,542 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:08:53,542 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 04:08:53,542 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:08:53,542 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:08:53,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:08:53,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:08:53,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:08:53,543 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:08:53,568 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 9 proven. 23 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-10-29 04:08:53,568 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [921783308] [2020-10-29 04:08:53,568 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:08:53,568 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-10-29 04:08:53,568 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [533485345] [2020-10-29 04:08:53,569 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-29 04:08:53,569 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:08:53,569 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-29 04:08:53,570 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=164, Unknown=0, NotChecked=0, Total=210 [2020-10-29 04:08:53,570 INFO L87 Difference]: Start difference. First operand 528 states and 611 transitions. Second operand 15 states. [2020-10-29 04:08:56,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:08:56,167 INFO L93 Difference]: Finished difference Result 671 states and 770 transitions. [2020-10-29 04:08:56,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2020-10-29 04:08:56,168 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 78 [2020-10-29 04:08:56,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:08:56,172 INFO L225 Difference]: With dead ends: 671 [2020-10-29 04:08:56,172 INFO L226 Difference]: Without dead ends: 654 [2020-10-29 04:08:56,173 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 14 SyntacticMatches, 3 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 316 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=271, Invalid=1135, Unknown=0, NotChecked=0, Total=1406 [2020-10-29 04:08:56,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 654 states. [2020-10-29 04:08:56,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 654 to 533. [2020-10-29 04:08:56,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 533 states. [2020-10-29 04:08:56,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 533 states to 533 states and 617 transitions. [2020-10-29 04:08:56,254 INFO L78 Accepts]: Start accepts. Automaton has 533 states and 617 transitions. Word has length 78 [2020-10-29 04:08:56,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:08:56,255 INFO L481 AbstractCegarLoop]: Abstraction has 533 states and 617 transitions. [2020-10-29 04:08:56,255 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-29 04:08:56,255 INFO L276 IsEmpty]: Start isEmpty. Operand 533 states and 617 transitions. [2020-10-29 04:08:56,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2020-10-29 04:08:56,257 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:08:56,258 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:08:56,258 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-29 04:08:56,259 INFO L429 AbstractCegarLoop]: === Iteration 17 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:08:56,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:08:56,259 INFO L82 PathProgramCache]: Analyzing trace with hash 823280844, now seen corresponding path program 2 times [2020-10-29 04:08:56,259 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:08:56,260 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1647225618] [2020-10-29 04:08:56,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:08:56,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:08:56,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:56,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:56,490 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:08:56,490 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 94 [2020-10-29 04:08:56,490 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 04:08:56,490 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 211 [2020-10-29 04:08:56,491 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:08:56,491 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:08:56,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:08:56,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-29 04:08:56,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-29 04:08:56,491 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:08:56,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:08:56,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:08:56,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:56,542 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:08:56,542 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:08:56,542 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:08:56,542 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:08:56,543 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:08:56,543 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:08:56,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:08:56,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:08:56,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:08:56,543 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:08:56,545 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 04:08:56,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:08:56,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:56,552 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:08:56,553 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:08:56,553 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:08:56,553 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:08:56,553 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:08:56,553 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:08:56,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:08:56,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:08:56,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:08:56,554 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:08:56,563 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-29 04:08:56,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:08:56,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:56,567 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:08:56,567 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:08:56,567 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:08:56,567 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:08:56,567 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:08:56,567 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:08:56,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:08:56,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 04:08:56,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:08:56,568 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:08:56,601 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2020-10-29 04:08:56,602 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1647225618] [2020-10-29 04:08:56,602 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 04:08:56,602 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-29 04:08:56,602 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [490128553] [2020-10-29 04:08:56,603 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-29 04:08:56,603 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:08:56,603 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-29 04:08:56,603 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-29 04:08:56,604 INFO L87 Difference]: Start difference. First operand 533 states and 617 transitions. Second operand 4 states. [2020-10-29 04:08:56,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:08:56,766 INFO L93 Difference]: Finished difference Result 599 states and 693 transitions. [2020-10-29 04:08:56,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-29 04:08:56,766 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 80 [2020-10-29 04:08:56,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:08:56,768 INFO L225 Difference]: With dead ends: 599 [2020-10-29 04:08:56,768 INFO L226 Difference]: Without dead ends: 252 [2020-10-29 04:08:56,770 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-29 04:08:56,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 252 states. [2020-10-29 04:08:56,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 252 to 252. [2020-10-29 04:08:56,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 252 states. [2020-10-29 04:08:56,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252 states to 252 states and 283 transitions. [2020-10-29 04:08:56,802 INFO L78 Accepts]: Start accepts. Automaton has 252 states and 283 transitions. Word has length 80 [2020-10-29 04:08:56,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:08:56,803 INFO L481 AbstractCegarLoop]: Abstraction has 252 states and 283 transitions. [2020-10-29 04:08:56,803 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-29 04:08:56,803 INFO L276 IsEmpty]: Start isEmpty. Operand 252 states and 283 transitions. [2020-10-29 04:08:56,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2020-10-29 04:08:56,804 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:08:56,804 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:08:56,805 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-29 04:08:56,805 INFO L429 AbstractCegarLoop]: === Iteration 18 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:08:56,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:08:56,805 INFO L82 PathProgramCache]: Analyzing trace with hash 1644145195, now seen corresponding path program 2 times [2020-10-29 04:08:56,805 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:08:56,806 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1424033640] [2020-10-29 04:08:56,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:08:56,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:08:56,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:56,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:57,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:57,081 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:57,112 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:57,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:57,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:57,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:57,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:58,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:58,206 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:58,320 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:58,358 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:58,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:58,592 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:58,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:58,993 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:01,839 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:09:01,840 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 107 [2020-10-29 04:09:01,840 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 17 [2020-10-29 04:09:01,840 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5011 [2020-10-29 04:09:01,840 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:09:01,840 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:09:01,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-29 04:09:01,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-29 04:09:01,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 82 [2020-10-29 04:09:01,841 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:09:02,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:09:02,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:09:02,411 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:02,413 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:09:02,414 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:09:02,414 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:09:02,414 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:09:02,414 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:09:02,414 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:09:02,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:09:02,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:09:02,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:09:02,414 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:09:02,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 04:09:02,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:09:02,417 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:02,418 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:09:02,419 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:09:02,419 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:09:02,419 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:09:02,419 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:09:02,419 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:09:02,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:09:02,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:09:02,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:09:02,420 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:09:02,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-29 04:09:02,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:09:02,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:02,425 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:09:02,425 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:09:02,425 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:09:02,425 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:09:02,426 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:09:02,426 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:09:02,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:09:02,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:09:02,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:09:02,426 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:09:02,428 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-29 04:09:02,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:09:02,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:02,431 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:09:02,432 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:09:02,432 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:09:02,432 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:09:02,432 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:09:02,432 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:09:02,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:09:02,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:09:02,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:09:02,433 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:09:02,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-29 04:09:02,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:09:02,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:02,438 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:09:02,438 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:09:02,438 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:09:02,438 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:09:02,438 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:09:02,438 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:09:02,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:09:02,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:09:02,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:09:02,439 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:09:02,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-29 04:09:02,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:09:02,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:02,461 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:09:02,461 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:09:02,461 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:09:02,461 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-29 04:09:02,462 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:09:02,462 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:09:02,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:09:02,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:09:02,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:09:02,462 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:09:02,483 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 8 proven. 44 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2020-10-29 04:09:02,484 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1424033640] [2020-10-29 04:09:02,484 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:09:02,484 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2020-10-29 04:09:02,485 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [130579642] [2020-10-29 04:09:02,485 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-10-29 04:09:02,485 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:09:02,486 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-10-29 04:09:02,486 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2020-10-29 04:09:02,486 INFO L87 Difference]: Start difference. First operand 252 states and 283 transitions. Second operand 18 states. [2020-10-29 04:09:05,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:09:05,989 INFO L93 Difference]: Finished difference Result 372 states and 424 transitions. [2020-10-29 04:09:05,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2020-10-29 04:09:05,989 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 87 [2020-10-29 04:09:05,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:09:05,992 INFO L225 Difference]: With dead ends: 372 [2020-10-29 04:09:05,992 INFO L226 Difference]: Without dead ends: 369 [2020-10-29 04:09:05,994 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 16 SyntacticMatches, 2 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 941 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=384, Invalid=3276, Unknown=0, NotChecked=0, Total=3660 [2020-10-29 04:09:05,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 369 states. [2020-10-29 04:09:06,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 369 to 291. [2020-10-29 04:09:06,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 291 states. [2020-10-29 04:09:06,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 291 states to 291 states and 333 transitions. [2020-10-29 04:09:06,027 INFO L78 Accepts]: Start accepts. Automaton has 291 states and 333 transitions. Word has length 87 [2020-10-29 04:09:06,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:09:06,028 INFO L481 AbstractCegarLoop]: Abstraction has 291 states and 333 transitions. [2020-10-29 04:09:06,028 INFO L482 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-10-29 04:09:06,028 INFO L276 IsEmpty]: Start isEmpty. Operand 291 states and 333 transitions. [2020-10-29 04:09:06,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2020-10-29 04:09:06,029 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:09:06,030 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:09:06,030 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-29 04:09:06,030 INFO L429 AbstractCegarLoop]: === Iteration 19 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:09:06,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:09:06,030 INFO L82 PathProgramCache]: Analyzing trace with hash 1617030862, now seen corresponding path program 1 times [2020-10-29 04:09:06,030 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:09:06,031 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [691770818] [2020-10-29 04:09:06,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:09:06,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:09:06,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:06,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:06,248 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:09:06,248 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-29 04:09:06,249 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 04:09:06,249 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 202 [2020-10-29 04:09:06,249 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:09:06,249 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:09:06,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:09:06,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-29 04:09:06,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-29 04:09:06,249 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:09:06,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:09:06,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:09:06,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:06,313 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:09:06,313 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:09:06,313 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:09:06,313 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:09:06,313 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:09:06,313 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:09:06,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:09:06,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:09:06,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:09:06,314 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:09:06,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 04:09:06,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:09:06,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:06,319 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:09:06,319 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:09:06,319 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:09:06,320 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:09:06,320 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:09:06,320 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:09:06,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:09:06,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:09:06,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:09:06,320 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:09:06,321 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-29 04:09:06,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:09:06,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:06,323 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:09:06,323 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:09:06,323 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:09:06,323 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 04:09:06,323 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:09:06,323 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:09:06,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:09:06,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 04:09:06,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:09:06,323 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:09:06,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-29 04:09:06,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:09:06,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:06,325 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:09:06,326 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:09:06,326 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:09:06,326 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 04:09:06,326 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:09:06,326 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:09:06,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:09:06,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 04:09:06,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:09:06,326 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:09:06,334 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2020-10-29 04:09:06,334 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [691770818] [2020-10-29 04:09:06,334 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 04:09:06,335 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-29 04:09:06,335 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1712436768] [2020-10-29 04:09:06,335 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-29 04:09:06,335 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:09:06,336 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-29 04:09:06,336 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-29 04:09:06,336 INFO L87 Difference]: Start difference. First operand 291 states and 333 transitions. Second operand 4 states. [2020-10-29 04:09:06,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:09:06,504 INFO L93 Difference]: Finished difference Result 353 states and 406 transitions. [2020-10-29 04:09:06,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-29 04:09:06,504 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 89 [2020-10-29 04:09:06,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:09:06,505 INFO L225 Difference]: With dead ends: 353 [2020-10-29 04:09:06,506 INFO L226 Difference]: Without dead ends: 175 [2020-10-29 04:09:06,506 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 [2020-10-29 04:09:06,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2020-10-29 04:09:06,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 175. [2020-10-29 04:09:06,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 175 states. [2020-10-29 04:09:06,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 196 transitions. [2020-10-29 04:09:06,534 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 196 transitions. Word has length 89 [2020-10-29 04:09:06,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:09:06,534 INFO L481 AbstractCegarLoop]: Abstraction has 175 states and 196 transitions. [2020-10-29 04:09:06,535 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-29 04:09:06,535 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 196 transitions. [2020-10-29 04:09:06,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2020-10-29 04:09:06,536 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:09:06,536 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:09:06,536 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-29 04:09:06,537 INFO L429 AbstractCegarLoop]: === Iteration 20 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:09:06,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:09:06,537 INFO L82 PathProgramCache]: Analyzing trace with hash -1280610609, now seen corresponding path program 3 times [2020-10-29 04:09:06,537 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:09:06,537 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1307668497] [2020-10-29 04:09:06,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:09:06,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:09:06,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:06,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:06,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:06,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:06,943 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:07,037 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:11,562 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:09:11,563 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-29 04:09:11,563 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-29 04:09:11,563 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-29 04:09:11,563 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:09:11,563 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:09:11,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-29 04:09:11,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-29 04:09:11,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-29 04:09:11,563 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:09:11,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:09:11,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:09:11,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:11,773 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:09:11,773 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:09:11,773 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:09:11,773 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:09:11,773 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:09:11,774 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:09:11,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:09:11,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:09:11,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:09:11,774 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:09:11,776 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 04:09:11,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:09:11,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:11,793 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:09:11,793 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:09:11,793 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:09:11,793 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-29 04:09:11,793 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:09:11,794 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:09:11,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:09:11,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:09:11,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:09:11,794 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:09:11,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-29 04:09:11,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:09:11,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:11,800 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:09:11,800 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:09:11,800 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:09:11,800 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:09:11,800 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:09:11,801 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:09:11,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:09:11,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:09:11,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:09:11,801 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:09:11,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-29 04:09:11,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:09:11,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:11,806 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:09:11,806 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:09:11,807 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:09:11,807 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:09:11,807 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:09:11,807 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:09:11,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:09:11,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:09:11,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:09:11,808 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:09:11,809 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-29 04:09:11,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:09:11,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:11,813 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:09:11,813 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:09:11,813 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:09:11,813 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:09:11,814 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:09:11,814 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:09:11,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:09:11,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:09:11,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:09:11,814 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:09:11,816 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-29 04:09:11,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:09:11,818 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:11,820 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:09:11,820 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:09:11,820 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:09:11,820 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:09:11,821 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:09:11,821 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:09:11,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:09:11,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:09:11,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:09:11,821 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:09:11,823 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-29 04:09:11,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:09:11,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:11,825 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:09:11,825 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:09:11,825 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:09:11,825 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:09:11,825 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:09:11,825 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:09:11,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:09:11,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 04:09:11,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:09:11,826 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:09:11,848 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 36 proven. 39 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2020-10-29 04:09:11,849 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1307668497] [2020-10-29 04:09:11,849 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:09:11,849 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-29 04:09:11,849 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [827263301] [2020-10-29 04:09:11,850 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-29 04:09:11,850 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:09:11,851 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-29 04:09:11,851 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2020-10-29 04:09:11,851 INFO L87 Difference]: Start difference. First operand 175 states and 196 transitions. Second operand 13 states. [2020-10-29 04:09:12,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:09:12,695 INFO L93 Difference]: Finished difference Result 223 states and 249 transitions. [2020-10-29 04:09:12,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-29 04:09:12,696 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 96 [2020-10-29 04:09:12,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:09:12,698 INFO L225 Difference]: With dead ends: 223 [2020-10-29 04:09:12,698 INFO L226 Difference]: Without dead ends: 192 [2020-10-29 04:09:12,699 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=57, Invalid=215, Unknown=0, NotChecked=0, Total=272 [2020-10-29 04:09:12,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2020-10-29 04:09:12,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 175. [2020-10-29 04:09:12,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 175 states. [2020-10-29 04:09:12,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 194 transitions. [2020-10-29 04:09:12,729 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 194 transitions. Word has length 96 [2020-10-29 04:09:12,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:09:12,729 INFO L481 AbstractCegarLoop]: Abstraction has 175 states and 194 transitions. [2020-10-29 04:09:12,729 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-29 04:09:12,729 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 194 transitions. [2020-10-29 04:09:12,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2020-10-29 04:09:12,731 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:09:12,731 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 5, 5, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:09:12,731 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-29 04:09:12,731 INFO L429 AbstractCegarLoop]: === Iteration 21 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:09:12,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:09:12,731 INFO L82 PathProgramCache]: Analyzing trace with hash 1734493009, now seen corresponding path program 4 times [2020-10-29 04:09:12,732 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:09:12,732 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1696211765] [2020-10-29 04:09:12,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:09:12,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:09:12,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:12,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:12,904 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:12,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:12,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:13,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:13,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:14,329 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:16,794 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:17,757 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:09:17,758 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-29 04:09:17,758 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-29 04:09:17,758 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-10-29 04:09:17,758 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:09:17,758 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:09:17,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-29 04:09:17,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-29 04:09:17,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-10-29 04:09:17,758 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:09:18,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:09:18,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:09:18,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:18,051 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:09:18,051 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:09:18,052 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:09:18,052 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:09:18,052 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:09:18,052 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:09:18,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:09:18,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:09:18,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:09:18,053 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:09:18,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 04:09:18,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:09:18,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:18,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:18,062 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:09:18,063 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:09:18,063 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 04:09:18,063 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 04:09:18,063 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:09:18,063 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:09:18,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:09:18,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:09:18,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:09:18,063 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:09:18,065 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-29 04:09:18,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:09:18,066 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:18,067 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:09:18,067 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:09:18,067 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:09:18,068 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:09:18,068 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:09:18,068 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:09:18,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:09:18,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:09:18,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:09:18,068 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:09:18,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-29 04:09:18,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:09:18,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:18,071 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:09:18,072 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:09:18,072 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:09:18,072 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:09:18,072 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:09:18,072 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:09:18,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:09:18,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:09:18,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:09:18,072 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:09:18,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-29 04:09:18,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:09:18,075 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:18,077 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:09:18,077 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:09:18,077 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:09:18,077 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:09:18,077 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:09:18,077 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:09:18,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:09:18,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:09:18,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:09:18,078 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:09:18,079 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-29 04:09:18,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:09:18,081 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:18,082 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:09:18,082 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:09:18,082 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:09:18,082 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:09:18,082 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:09:18,082 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:09:18,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:09:18,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:09:18,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:09:18,083 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:09:18,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-29 04:09:18,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:09:18,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:18,088 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:09:18,088 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:09:18,088 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:09:18,088 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:09:18,089 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:09:18,089 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:09:18,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:09:18,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:09:18,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:09:18,089 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:09:18,100 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 75 proven. 1 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2020-10-29 04:09:18,101 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1696211765] [2020-10-29 04:09:18,101 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:09:18,101 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-29 04:09:18,101 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [152094646] [2020-10-29 04:09:18,102 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-29 04:09:18,102 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:09:18,102 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-29 04:09:18,102 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2020-10-29 04:09:18,103 INFO L87 Difference]: Start difference. First operand 175 states and 194 transitions. Second operand 13 states. [2020-10-29 04:09:19,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:09:19,219 INFO L93 Difference]: Finished difference Result 200 states and 217 transitions. [2020-10-29 04:09:19,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-29 04:09:19,220 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 96 [2020-10-29 04:09:19,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:09:19,221 INFO L225 Difference]: With dead ends: 200 [2020-10-29 04:09:19,222 INFO L226 Difference]: Without dead ends: 124 [2020-10-29 04:09:19,222 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=152, Invalid=498, Unknown=0, NotChecked=0, Total=650 [2020-10-29 04:09:19,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2020-10-29 04:09:19,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 109. [2020-10-29 04:09:19,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2020-10-29 04:09:19,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 121 transitions. [2020-10-29 04:09:19,239 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 121 transitions. Word has length 96 [2020-10-29 04:09:19,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:09:19,240 INFO L481 AbstractCegarLoop]: Abstraction has 109 states and 121 transitions. [2020-10-29 04:09:19,240 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-29 04:09:19,240 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 121 transitions. [2020-10-29 04:09:19,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2020-10-29 04:09:19,241 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:09:19,241 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:09:19,241 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-10-29 04:09:19,242 INFO L429 AbstractCegarLoop]: === Iteration 22 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:09:19,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:09:19,242 INFO L82 PathProgramCache]: Analyzing trace with hash -1360193526, now seen corresponding path program 5 times [2020-10-29 04:09:19,242 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:09:19,243 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1553894347] [2020-10-29 04:09:19,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:09:19,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:09:19,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:19,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:19,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:19,883 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:20,034 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:20,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:20,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:20,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:21,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:23,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:23,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:23,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:24,315 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:09:24,315 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-29 04:09:24,315 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 12 [2020-10-29 04:09:24,315 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5027 [2020-10-29 04:09:24,316 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:09:24,316 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:09:24,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-10-29 04:09:24,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 41 [2020-10-29 04:09:24,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-10-29 04:09:24,316 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:09:25,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:09:25,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:09:25,364 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:25,367 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:09:25,367 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:09:25,367 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:09:25,368 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:09:25,368 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:09:25,368 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:09:25,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:09:25,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:09:25,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:09:25,368 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:09:25,370 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 04:09:25,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:09:25,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:25,372 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:09:25,372 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:09:25,372 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:09:25,372 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:09:25,373 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:09:25,373 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:09:25,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:09:25,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:09:25,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:09:25,373 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:09:25,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-29 04:09:25,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:09:25,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:25,378 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:09:25,378 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:09:25,378 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:09:25,379 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:09:25,379 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:09:25,379 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:09:25,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:09:25,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:09:25,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:09:25,379 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:09:25,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-29 04:09:25,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:09:25,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:25,384 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:09:25,384 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:09:25,384 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:09:25,384 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:09:25,385 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:09:25,385 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:09:25,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:09:25,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:09:25,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:09:25,385 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:09:25,387 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-10-29 04:09:25,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:09:25,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:25,390 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:09:25,390 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:09:25,390 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:09:25,390 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:09:25,391 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:09:25,391 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:09:25,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:09:25,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:09:25,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:09:25,391 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:09:25,412 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 9 proven. 33 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2020-10-29 04:09:25,412 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1553894347] [2020-10-29 04:09:25,413 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:09:25,413 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2020-10-29 04:09:25,413 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1726480489] [2020-10-29 04:09:25,413 INFO L461 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-10-29 04:09:25,413 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:09:25,413 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-10-29 04:09:25,414 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=302, Unknown=0, NotChecked=0, Total=342 [2020-10-29 04:09:25,414 INFO L87 Difference]: Start difference. First operand 109 states and 121 transitions. Second operand 19 states. [2020-10-29 04:09:31,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:09:31,828 INFO L93 Difference]: Finished difference Result 288 states and 320 transitions. [2020-10-29 04:09:31,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2020-10-29 04:09:31,830 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 98 [2020-10-29 04:09:31,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:09:31,836 INFO L225 Difference]: With dead ends: 288 [2020-10-29 04:09:31,836 INFO L226 Difference]: Without dead ends: 261 [2020-10-29 04:09:31,841 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 19 SyntacticMatches, 4 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1974 ImplicationChecksByTransitivity, 4.9s TimeCoverageRelationStatistics Valid=809, Invalid=5833, Unknown=0, NotChecked=0, Total=6642 [2020-10-29 04:09:31,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 261 states. [2020-10-29 04:09:31,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 261 to 108. [2020-10-29 04:09:31,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 108 states. [2020-10-29 04:09:31,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 118 transitions. [2020-10-29 04:09:31,862 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 118 transitions. Word has length 98 [2020-10-29 04:09:31,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:09:31,862 INFO L481 AbstractCegarLoop]: Abstraction has 108 states and 118 transitions. [2020-10-29 04:09:31,862 INFO L482 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-10-29 04:09:31,862 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 118 transitions. [2020-10-29 04:09:31,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2020-10-29 04:09:31,863 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:09:31,863 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 5, 5, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:09:31,863 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-10-29 04:09:31,863 INFO L429 AbstractCegarLoop]: === Iteration 23 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:09:31,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:09:31,864 INFO L82 PathProgramCache]: Analyzing trace with hash -25769140, now seen corresponding path program 6 times [2020-10-29 04:09:31,864 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:09:31,869 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1594940305] [2020-10-29 04:09:31,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:09:31,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:09:31,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:33,460 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:33,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:34,336 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:34,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:35,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:37,188 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:09:37,188 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 138 [2020-10-29 04:09:37,188 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-29 04:09:37,188 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5265 [2020-10-29 04:09:37,188 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:09:37,188 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:09:37,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 28 [2020-10-29 04:09:37,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-29 04:09:37,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-10-29 04:09:37,189 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:09:37,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:09:37,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:09:37,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:37,581 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:09:37,582 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:09:37,582 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:09:37,582 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:09:37,582 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:09:37,582 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:09:37,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:09:37,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:09:37,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:09:37,582 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:09:37,584 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 04:09:37,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:09:37,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:37,586 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:09:37,586 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:09:37,586 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:09:37,586 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:09:37,586 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:09:37,587 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:09:37,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:09:37,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:09:37,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:09:37,587 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:09:37,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-29 04:09:37,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:09:37,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:37,592 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:09:37,592 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:09:37,592 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:09:37,592 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:09:37,592 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:09:37,592 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:09:37,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:09:37,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:09:37,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:09:37,593 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:09:37,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-29 04:09:37,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:09:37,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:37,597 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:09:37,597 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:09:37,597 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:09:37,597 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:09:37,597 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:09:37,598 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:09:37,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:09:37,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:09:37,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:09:37,598 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:09:37,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-10-29 04:09:37,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:09:37,601 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:37,602 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:09:37,603 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:09:37,603 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:09:37,603 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:09:37,603 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:09:37,603 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:09:37,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:09:37,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:09:37,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:09:37,603 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:09:37,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2020-10-29 04:09:37,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:09:37,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:37,607 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:09:37,607 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:09:37,607 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:09:37,607 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:09:37,608 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:09:37,608 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:09:37,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:09:37,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:09:37,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:09:37,608 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:09:37,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-29 04:09:37,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:09:37,610 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:37,612 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:09:37,612 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:09:37,612 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:09:37,612 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:09:37,613 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:09:37,613 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:09:37,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:09:37,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:09:37,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:09:37,613 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:09:37,642 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 15 proven. 66 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2020-10-29 04:09:37,643 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1594940305] [2020-10-29 04:09:37,643 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:09:37,643 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-10-29 04:09:37,643 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [391085594] [2020-10-29 04:09:37,644 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-29 04:09:37,644 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:09:37,644 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-29 04:09:37,644 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2020-10-29 04:09:37,644 INFO L87 Difference]: Start difference. First operand 108 states and 118 transitions. Second operand 14 states. [2020-10-29 04:09:39,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:09:39,920 INFO L93 Difference]: Finished difference Result 228 states and 257 transitions. [2020-10-29 04:09:39,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-10-29 04:09:39,922 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 116 [2020-10-29 04:09:39,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:09:39,924 INFO L225 Difference]: With dead ends: 228 [2020-10-29 04:09:39,924 INFO L226 Difference]: Without dead ends: 211 [2020-10-29 04:09:39,925 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 23 SyntacticMatches, 8 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 225 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=160, Invalid=962, Unknown=0, NotChecked=0, Total=1122 [2020-10-29 04:09:39,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211 states. [2020-10-29 04:09:39,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 112. [2020-10-29 04:09:39,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 112 states. [2020-10-29 04:09:39,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 122 transitions. [2020-10-29 04:09:39,945 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 122 transitions. Word has length 116 [2020-10-29 04:09:39,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:09:39,945 INFO L481 AbstractCegarLoop]: Abstraction has 112 states and 122 transitions. [2020-10-29 04:09:39,946 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-29 04:09:39,946 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 122 transitions. [2020-10-29 04:09:39,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2020-10-29 04:09:39,947 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:09:39,947 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 6, 6, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:09:39,947 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-10-29 04:09:39,947 INFO L429 AbstractCegarLoop]: === Iteration 24 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:09:39,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:09:39,948 INFO L82 PathProgramCache]: Analyzing trace with hash 572588750, now seen corresponding path program 7 times [2020-10-29 04:09:39,948 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:09:39,948 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [337715124] [2020-10-29 04:09:39,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:09:40,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:09:40,101 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:40,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:41,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:41,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:41,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:42,291 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:42,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:43,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:44,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:45,043 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:09:45,043 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 149 [2020-10-29 04:09:45,043 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-29 04:09:45,043 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-10-29 04:09:45,044 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:09:45,044 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:09:45,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-10-29 04:09:45,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 31 [2020-10-29 04:09:45,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 109 [2020-10-29 04:09:45,044 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:09:45,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:09:45,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:09:45,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:45,417 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:09:45,418 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:09:45,418 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:09:45,418 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:09:45,418 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:09:45,418 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:09:45,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:09:45,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:09:45,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:09:45,419 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:09:45,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 04:09:45,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:09:45,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:45,424 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:09:45,424 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:09:45,424 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:09:45,424 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:09:45,424 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:09:45,425 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:09:45,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:09:45,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:09:45,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:09:45,425 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:09:45,426 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-29 04:09:45,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:09:45,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:45,431 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:09:45,431 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:09:45,432 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:09:45,432 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:09:45,432 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:09:45,432 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:09:45,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:09:45,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:09:45,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:09:45,433 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:09:45,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-29 04:09:45,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:09:45,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:45,439 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:09:45,439 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:09:45,439 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:09:45,439 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:09:45,440 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:09:45,440 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:09:45,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:09:45,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:09:45,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:09:45,440 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:09:45,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-10-29 04:09:45,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:09:45,443 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:45,445 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:09:45,446 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:09:45,446 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:09:45,446 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:09:45,446 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:09:45,446 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:09:45,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:09:45,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:09:45,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:09:45,447 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:09:45,448 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2020-10-29 04:09:45,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:09:45,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:45,452 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:09:45,452 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:09:45,452 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:09:45,452 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:09:45,453 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:09:45,453 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:09:45,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:09:45,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:09:45,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:09:45,453 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:09:45,455 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-29 04:09:45,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:09:45,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:45,459 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:09:45,459 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:09:45,459 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:09:45,460 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:09:45,460 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:09:45,460 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:09:45,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:09:45,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:09:45,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:09:45,461 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:09:45,462 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2020-10-29 04:09:45,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:09:45,465 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:45,468 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:09:45,468 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:09:45,468 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:09:45,468 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:09:45,468 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:09:45,469 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:09:45,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:09:45,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:09:45,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:09:45,469 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:09:45,516 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 18 proven. 93 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2020-10-29 04:09:45,517 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [337715124] [2020-10-29 04:09:45,517 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:09:45,517 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-10-29 04:09:45,517 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1816892713] [2020-10-29 04:09:45,518 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-29 04:09:45,518 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:09:45,518 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-29 04:09:45,519 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2020-10-29 04:09:45,519 INFO L87 Difference]: Start difference. First operand 112 states and 122 transitions. Second operand 15 states. [2020-10-29 04:09:48,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:09:48,607 INFO L93 Difference]: Finished difference Result 246 states and 279 transitions. [2020-10-29 04:09:48,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2020-10-29 04:09:48,608 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 125 [2020-10-29 04:09:48,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:09:48,611 INFO L225 Difference]: With dead ends: 246 [2020-10-29 04:09:48,611 INFO L226 Difference]: Without dead ends: 229 [2020-10-29 04:09:48,612 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 23 SyntacticMatches, 6 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 501 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=237, Invalid=1833, Unknown=0, NotChecked=0, Total=2070 [2020-10-29 04:09:48,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 229 states. [2020-10-29 04:09:48,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 229 to 117. [2020-10-29 04:09:48,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 117 states. [2020-10-29 04:09:48,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 128 transitions. [2020-10-29 04:09:48,628 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 128 transitions. Word has length 125 [2020-10-29 04:09:48,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:09:48,629 INFO L481 AbstractCegarLoop]: Abstraction has 117 states and 128 transitions. [2020-10-29 04:09:48,629 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-29 04:09:48,629 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 128 transitions. [2020-10-29 04:09:48,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2020-10-29 04:09:48,629 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:09:48,630 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 7, 7, 7, 7, 7, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:09:48,630 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2020-10-29 04:09:48,630 INFO L429 AbstractCegarLoop]: === Iteration 25 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:09:48,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:09:48,630 INFO L82 PathProgramCache]: Analyzing trace with hash 1380982156, now seen corresponding path program 8 times [2020-10-29 04:09:48,630 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:09:48,630 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1389190449] [2020-10-29 04:09:48,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:09:48,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:09:48,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:48,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:49,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:49,752 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:50,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:50,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:50,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:50,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:51,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:53,687 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:09:53,687 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-10-29 04:09:53,687 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-29 04:09:53,687 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5014 [2020-10-29 04:09:53,687 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:09:53,687 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:09:53,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-29 04:09:53,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 41 [2020-10-29 04:09:53,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-29 04:09:53,688 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:09:54,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:09:54,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:09:54,081 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:54,083 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:09:54,083 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:09:54,083 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:09:54,083 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:09:54,084 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:09:54,084 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:09:54,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:09:54,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:09:54,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:09:54,084 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:09:54,086 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 04:09:54,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:09:54,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:54,088 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:09:54,089 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:09:54,089 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:09:54,089 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:09:54,089 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:09:54,089 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:09:54,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:09:54,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:09:54,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:09:54,090 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:09:54,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-29 04:09:54,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:09:54,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:54,095 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:09:54,095 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:09:54,096 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:09:54,096 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:09:54,096 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:09:54,096 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:09:54,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:09:54,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:09:54,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:09:54,097 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:09:54,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-29 04:09:54,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:09:54,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:54,101 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:09:54,101 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:09:54,102 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:09:54,102 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:09:54,102 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:09:54,102 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:09:54,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:09:54,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:09:54,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:09:54,102 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:09:54,103 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-10-29 04:09:54,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:09:54,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:54,106 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:09:54,106 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:09:54,106 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:09:54,106 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:09:54,107 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:09:54,107 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:09:54,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:09:54,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:09:54,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:09:54,107 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:09:54,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2020-10-29 04:09:54,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:09:54,109 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:54,111 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:09:54,111 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:09:54,111 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:09:54,111 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:09:54,111 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:09:54,111 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:09:54,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:09:54,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:09:54,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:09:54,112 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:09:54,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-29 04:09:54,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:09:54,115 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:54,117 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:09:54,118 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:09:54,118 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:09:54,118 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:09:54,118 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:09:54,118 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:09:54,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:09:54,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:09:54,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:09:54,119 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:09:54,120 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2020-10-29 04:09:54,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:09:54,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:54,124 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:09:54,125 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:09:54,125 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:09:54,125 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:09:54,125 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:09:54,125 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:09:54,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:09:54,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:09:54,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:09:54,126 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:09:54,127 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-10-29 04:09:54,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:09:54,129 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:54,131 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:09:54,131 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:09:54,131 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:09:54,132 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:09:54,132 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:09:54,132 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:09:54,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:09:54,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:09:54,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:09:54,133 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:09:54,175 INFO L134 CoverageAnalysis]: Checked inductivity of 254 backedges. 21 proven. 125 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2020-10-29 04:09:54,175 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1389190449] [2020-10-29 04:09:54,175 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:09:54,176 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-10-29 04:09:54,176 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [563713753] [2020-10-29 04:09:54,176 INFO L461 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-29 04:09:54,177 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:09:54,177 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-29 04:09:54,177 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=207, Unknown=0, NotChecked=0, Total=240 [2020-10-29 04:09:54,177 INFO L87 Difference]: Start difference. First operand 117 states and 128 transitions. Second operand 16 states. [2020-10-29 04:09:57,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:09:57,646 INFO L93 Difference]: Finished difference Result 256 states and 291 transitions. [2020-10-29 04:09:57,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2020-10-29 04:09:57,648 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 134 [2020-10-29 04:09:57,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:09:57,651 INFO L225 Difference]: With dead ends: 256 [2020-10-29 04:09:57,651 INFO L226 Difference]: Without dead ends: 239 [2020-10-29 04:09:57,652 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 23 SyntacticMatches, 4 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 428 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=203, Invalid=1689, Unknown=0, NotChecked=0, Total=1892 [2020-10-29 04:09:57,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 239 states. [2020-10-29 04:09:57,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 239 to 122. [2020-10-29 04:09:57,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 122 states. [2020-10-29 04:09:57,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 134 transitions. [2020-10-29 04:09:57,674 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 134 transitions. Word has length 134 [2020-10-29 04:09:57,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:09:57,674 INFO L481 AbstractCegarLoop]: Abstraction has 122 states and 134 transitions. [2020-10-29 04:09:57,675 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-29 04:09:57,675 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 134 transitions. [2020-10-29 04:09:57,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2020-10-29 04:09:57,676 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:09:57,676 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 8, 8, 8, 8, 8, 7, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:09:57,676 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2020-10-29 04:09:57,676 INFO L429 AbstractCegarLoop]: === Iteration 26 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:09:57,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:09:57,676 INFO L82 PathProgramCache]: Analyzing trace with hash -1426048882, now seen corresponding path program 9 times [2020-10-29 04:09:57,677 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:09:57,677 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [311846835] [2020-10-29 04:09:57,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:09:57,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:09:57,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:58,398 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:58,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:58,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:58,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:58,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:59,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:59,448 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:59,548 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:00,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:00,605 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:00,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:02,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:02,720 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:10:02,720 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 171 [2020-10-29 04:10:02,720 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 13 [2020-10-29 04:10:02,720 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-10-29 04:10:02,720 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:10:02,720 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:10:02,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-29 04:10:02,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 51 [2020-10-29 04:10:02,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-29 04:10:02,721 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:10:03,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:10:03,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:10:03,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:03,119 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:10:03,120 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:10:03,120 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:10:03,120 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:10:03,120 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:10:03,120 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:10:03,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:10:03,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:10:03,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:10:03,121 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:10:03,123 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 04:10:03,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:10:03,124 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:03,125 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:10:03,125 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:10:03,125 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:10:03,126 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:10:03,126 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:10:03,126 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:10:03,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:10:03,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:10:03,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:10:03,126 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:10:03,127 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-29 04:10:03,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:10:03,129 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:03,130 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:10:03,130 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:10:03,130 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:10:03,131 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:10:03,131 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:10:03,131 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:10:03,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:10:03,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:10:03,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:10:03,131 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:10:03,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-29 04:10:03,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:10:03,133 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:03,135 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:10:03,135 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:10:03,135 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:10:03,135 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:10:03,135 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:10:03,136 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:10:03,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:10:03,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:10:03,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:10:03,136 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:10:03,137 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-10-29 04:10:03,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:10:03,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:03,140 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:10:03,140 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:10:03,140 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:10:03,140 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:10:03,140 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:10:03,141 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:10:03,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:10:03,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:10:03,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:10:03,141 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:10:03,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2020-10-29 04:10:03,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:10:03,144 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:03,146 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:10:03,146 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:10:03,146 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:10:03,146 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:10:03,146 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:10:03,147 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:10:03,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:10:03,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:10:03,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:10:03,147 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:10:03,148 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-29 04:10:03,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:10:03,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:03,152 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:10:03,153 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:10:03,153 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:10:03,155 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:10:03,155 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:10:03,155 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:10:03,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:10:03,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:10:03,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:10:03,156 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:10:03,156 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2020-10-29 04:10:03,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:10:03,158 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:03,160 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:10:03,160 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:10:03,160 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:10:03,161 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:10:03,161 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:10:03,161 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:10:03,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:10:03,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:10:03,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:10:03,161 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:10:03,162 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-10-29 04:10:03,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:10:03,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:03,166 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:10:03,166 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:10:03,166 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:10:03,166 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:10:03,166 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:10:03,167 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:10:03,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:10:03,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:10:03,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:10:03,167 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:10:03,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-10-29 04:10:03,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:10:03,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:03,172 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:10:03,172 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:10:03,172 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:10:03,172 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:10:03,172 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:10:03,172 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:10:03,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:10:03,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:10:03,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:10:03,173 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:10:03,202 INFO L134 CoverageAnalysis]: Checked inductivity of 322 backedges. 24 proven. 162 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2020-10-29 04:10:03,202 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [311846835] [2020-10-29 04:10:03,203 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:10:03,203 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2020-10-29 04:10:03,203 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [131501769] [2020-10-29 04:10:03,203 INFO L461 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-10-29 04:10:03,203 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:10:03,204 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-10-29 04:10:03,204 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=237, Unknown=0, NotChecked=0, Total=272 [2020-10-29 04:10:03,204 INFO L87 Difference]: Start difference. First operand 122 states and 134 transitions. Second operand 17 states. [2020-10-29 04:10:06,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:10:06,783 INFO L93 Difference]: Finished difference Result 266 states and 303 transitions. [2020-10-29 04:10:06,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2020-10-29 04:10:06,785 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 143 [2020-10-29 04:10:06,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:10:06,787 INFO L225 Difference]: With dead ends: 266 [2020-10-29 04:10:06,787 INFO L226 Difference]: Without dead ends: 249 [2020-10-29 04:10:06,789 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 23 SyntacticMatches, 2 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 386 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=175, Invalid=1631, Unknown=0, NotChecked=0, Total=1806 [2020-10-29 04:10:06,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249 states. [2020-10-29 04:10:06,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249 to 127. [2020-10-29 04:10:06,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 127 states. [2020-10-29 04:10:06,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 140 transitions. [2020-10-29 04:10:06,816 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 140 transitions. Word has length 143 [2020-10-29 04:10:06,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:10:06,817 INFO L481 AbstractCegarLoop]: Abstraction has 127 states and 140 transitions. [2020-10-29 04:10:06,817 INFO L482 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-10-29 04:10:06,817 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 140 transitions. [2020-10-29 04:10:06,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2020-10-29 04:10:06,818 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:10:06,818 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 9, 9, 9, 9, 9, 8, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:10:06,819 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2020-10-29 04:10:06,819 INFO L429 AbstractCegarLoop]: === Iteration 27 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:10:06,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:10:06,819 INFO L82 PathProgramCache]: Analyzing trace with hash -1076797492, now seen corresponding path program 10 times [2020-10-29 04:10:06,820 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:10:06,820 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1606595636] [2020-10-29 04:10:06,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:10:06,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:10:06,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:07,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:07,408 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:07,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:07,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:07,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:08,044 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:08,172 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:09,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:09,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:10,083 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:11,858 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:10:11,859 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 182 [2020-10-29 04:10:11,859 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 11 [2020-10-29 04:10:11,859 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-29 04:10:11,859 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:10:11,859 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:10:11,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-29 04:10:11,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 61 [2020-10-29 04:10:11,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 117 [2020-10-29 04:10:11,860 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:10:12,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:10:12,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:10:12,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:12,340 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:10:12,340 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:10:12,340 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:10:12,340 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 04:10:12,340 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:10:12,340 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:10:12,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:10:12,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:10:12,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:10:12,341 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:10:12,343 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 04:10:12,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:10:12,344 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:12,345 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:10:12,346 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:10:12,346 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:10:12,346 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:10:12,346 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:10:12,346 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:10:12,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:10:12,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:10:12,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:10:12,347 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:10:12,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-29 04:10:12,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:10:12,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:12,352 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:10:12,352 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:10:12,353 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:10:12,353 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:10:12,353 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:10:12,353 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:10:12,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:10:12,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:10:12,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:10:12,354 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:10:12,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-29 04:10:12,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:10:12,356 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:12,358 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:10:12,358 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:10:12,358 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:10:12,358 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:10:12,358 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:10:12,359 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:10:12,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:10:12,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:10:12,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:10:12,359 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:10:12,360 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-10-29 04:10:12,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:10:12,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:12,364 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:10:12,364 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:10:12,364 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:10:12,364 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:10:12,364 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:10:12,364 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:10:12,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:10:12,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:10:12,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:10:12,365 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:10:12,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2020-10-29 04:10:12,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:10:12,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:12,370 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:10:12,370 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:10:12,370 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:10:12,370 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:10:12,370 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:10:12,370 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:10:12,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:10:12,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:10:12,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:10:12,371 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:10:12,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-29 04:10:12,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:10:12,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:12,376 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:10:12,376 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:10:12,376 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:10:12,377 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:10:12,377 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:10:12,377 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:10:12,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:10:12,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:10:12,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:10:12,377 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:10:12,379 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2020-10-29 04:10:12,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:10:12,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:12,382 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:10:12,382 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:10:12,383 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:10:12,383 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:10:12,383 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:10:12,383 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:10:12,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:10:12,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:10:12,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:10:12,384 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:10:12,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-10-29 04:10:12,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:10:12,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:12,390 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:10:12,390 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:10:12,390 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:10:12,390 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:10:12,390 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:10:12,391 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:10:12,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:10:12,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:10:12,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:10:12,391 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:10:12,392 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-10-29 04:10:12,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:10:12,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:12,396 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:10:12,396 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:10:12,397 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:10:12,397 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:10:12,397 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:10:12,397 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:10:12,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:10:12,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:10:12,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:10:12,398 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:10:12,399 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-10-29 04:10:12,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:10:12,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:12,403 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:10:12,404 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:10:12,404 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:10:12,404 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:10:12,404 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:10:12,404 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:10:12,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:10:12,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:10:12,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:10:12,405 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:10:12,455 INFO L134 CoverageAnalysis]: Checked inductivity of 399 backedges. 18 proven. 213 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2020-10-29 04:10:12,455 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1606595636] [2020-10-29 04:10:12,455 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:10:12,455 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2020-10-29 04:10:12,456 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [978841158] [2020-10-29 04:10:12,457 INFO L461 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-10-29 04:10:12,458 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:10:12,458 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-10-29 04:10:12,458 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=339, Unknown=0, NotChecked=0, Total=380 [2020-10-29 04:10:12,458 INFO L87 Difference]: Start difference. First operand 127 states and 140 transitions. Second operand 20 states. [2020-10-29 04:10:15,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:10:15,566 INFO L93 Difference]: Finished difference Result 194 states and 217 transitions. [2020-10-29 04:10:15,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2020-10-29 04:10:15,568 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 152 [2020-10-29 04:10:15,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:10:15,570 INFO L225 Difference]: With dead ends: 194 [2020-10-29 04:10:15,570 INFO L226 Difference]: Without dead ends: 191 [2020-10-29 04:10:15,571 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 396 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=188, Invalid=1882, Unknown=0, NotChecked=0, Total=2070 [2020-10-29 04:10:15,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191 states. [2020-10-29 04:10:15,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191 to 137. [2020-10-29 04:10:15,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 137 states. [2020-10-29 04:10:15,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 152 transitions. [2020-10-29 04:10:15,599 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 152 transitions. Word has length 152 [2020-10-29 04:10:15,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:10:15,599 INFO L481 AbstractCegarLoop]: Abstraction has 137 states and 152 transitions. [2020-10-29 04:10:15,600 INFO L482 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-10-29 04:10:15,600 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 152 transitions. [2020-10-29 04:10:15,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-10-29 04:10:15,601 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:10:15,601 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 11, 10, 10, 10, 10, 10, 9, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:10:15,601 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2020-10-29 04:10:15,601 INFO L429 AbstractCegarLoop]: === Iteration 28 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:10:15,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:10:15,602 INFO L82 PathProgramCache]: Analyzing trace with hash -534413746, now seen corresponding path program 11 times [2020-10-29 04:10:15,602 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:10:15,602 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1488913498] [2020-10-29 04:10:15,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:10:15,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:10:15,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:15,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:16,018 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:16,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:16,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:16,315 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:18,088 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:20,664 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:10:20,664 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 193 [2020-10-29 04:10:20,664 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-29 04:10:20,665 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5031 [2020-10-29 04:10:20,665 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:10:20,665 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:10:20,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-29 04:10:20,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-29 04:10:20,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 170 [2020-10-29 04:10:20,665 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:10:21,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:10:21,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:10:21,263 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:21,266 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:10:21,266 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:10:21,266 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:10:21,267 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:10:21,267 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:10:21,267 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:10:21,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:10:21,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:10:21,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:10:21,268 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:10:21,270 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 04:10:21,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:10:21,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:21,276 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:21,283 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:10:21,283 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:10:21,284 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 04:10:21,284 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-29 04:10:21,284 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:10:21,284 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:10:21,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:10:21,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:10:21,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:10:21,285 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:10:21,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-29 04:10:21,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:10:21,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:21,290 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:10:21,290 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:10:21,290 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:10:21,291 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:10:21,291 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:10:21,291 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:10:21,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:10:21,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:10:21,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:10:21,292 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:10:21,293 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-29 04:10:21,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:10:21,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:21,297 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:10:21,297 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:10:21,297 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:10:21,298 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:10:21,298 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:10:21,298 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:10:21,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:10:21,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:10:21,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:10:21,299 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:10:21,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-10-29 04:10:21,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:10:21,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:21,307 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:10:21,307 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:10:21,307 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:10:21,308 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 04:10:21,308 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:10:21,308 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:10:21,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:10:21,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:10:21,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:10:21,308 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:10:21,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2020-10-29 04:10:21,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:10:21,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:21,313 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:10:21,314 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:10:21,314 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:10:21,314 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:10:21,314 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:10:21,314 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:10:21,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:10:21,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:10:21,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:10:21,315 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:10:21,316 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-29 04:10:21,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:10:21,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:21,320 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:10:21,320 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:10:21,320 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:10:21,320 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:10:21,320 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:10:21,321 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:10:21,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:10:21,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:10:21,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:10:21,321 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:10:21,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2020-10-29 04:10:21,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:10:21,326 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:21,327 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:10:21,328 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:10:21,328 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:10:21,328 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:10:21,328 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:10:21,328 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:10:21,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:10:21,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:10:21,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:10:21,329 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:10:21,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-10-29 04:10:21,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:10:21,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:21,333 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:10:21,333 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:10:21,333 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:10:21,334 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:10:21,334 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:10:21,334 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:10:21,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:10:21,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:10:21,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:10:21,334 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:10:21,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-10-29 04:10:21,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:10:21,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:21,339 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:10:21,339 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:10:21,339 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:10:21,340 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:10:21,340 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:10:21,340 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:10:21,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:10:21,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:10:21,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:10:21,340 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:10:21,342 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-10-29 04:10:21,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:10:21,344 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:21,346 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:10:21,346 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:10:21,346 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:10:21,346 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:10:21,347 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:10:21,347 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:10:21,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:10:21,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:10:21,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:10:21,347 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:10:21,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-10-29 04:10:21,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:10:21,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:21,353 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:10:21,353 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:10:21,353 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:10:21,353 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:10:21,353 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:10:21,353 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:10:21,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:10:21,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:10:21,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:10:21,354 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:10:21,404 INFO L134 CoverageAnalysis]: Checked inductivity of 485 backedges. 275 proven. 6 refuted. 0 times theorem prover too weak. 204 trivial. 0 not checked. [2020-10-29 04:10:21,404 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1488913498] [2020-10-29 04:10:21,405 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:10:21,405 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2020-10-29 04:10:21,405 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1187447672] [2020-10-29 04:10:21,405 INFO L461 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-10-29 04:10:21,406 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:10:21,406 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-10-29 04:10:21,406 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2020-10-29 04:10:21,406 INFO L87 Difference]: Start difference. First operand 137 states and 152 transitions. Second operand 19 states. [2020-10-29 04:10:25,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:10:25,200 INFO L93 Difference]: Finished difference Result 538 states and 614 transitions. [2020-10-29 04:10:25,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2020-10-29 04:10:25,204 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 161 [2020-10-29 04:10:25,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:10:25,206 INFO L225 Difference]: With dead ends: 538 [2020-10-29 04:10:25,206 INFO L226 Difference]: Without dead ends: 172 [2020-10-29 04:10:25,208 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 781 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=850, Invalid=2120, Unknown=0, NotChecked=0, Total=2970 [2020-10-29 04:10:25,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2020-10-29 04:10:25,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 157. [2020-10-29 04:10:25,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 157 states. [2020-10-29 04:10:25,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 172 transitions. [2020-10-29 04:10:25,238 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 172 transitions. Word has length 161 [2020-10-29 04:10:25,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:10:25,238 INFO L481 AbstractCegarLoop]: Abstraction has 157 states and 172 transitions. [2020-10-29 04:10:25,239 INFO L482 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-10-29 04:10:25,239 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 172 transitions. [2020-10-29 04:10:25,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2020-10-29 04:10:25,240 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:10:25,240 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 11, 10, 10, 10, 10, 10, 9, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1] [2020-10-29 04:10:25,240 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2020-10-29 04:10:25,240 INFO L429 AbstractCegarLoop]: === Iteration 29 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:10:25,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:10:25,241 INFO L82 PathProgramCache]: Analyzing trace with hash -118978125, now seen corresponding path program 12 times [2020-10-29 04:10:25,241 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:10:25,241 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2086734809] [2020-10-29 04:10:25,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:10:25,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:10:25,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:26,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:26,993 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:27,242 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:27,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:28,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:30,428 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:10:30,428 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 213 [2020-10-29 04:10:30,429 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-29 04:10:30,429 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5094 [2020-10-29 04:10:30,429 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:10:30,429 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:10:30,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-29 04:10:30,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-29 04:10:30,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 181 [2020-10-29 04:10:30,429 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:10:30,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:10:30,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:10:30,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:30,936 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:10:30,936 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:10:30,937 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:10:30,937 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:10:30,937 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:10:30,937 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:10:30,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:10:30,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:10:30,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:10:30,938 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:10:30,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 04:10:30,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:10:30,942 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:30,947 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:10:30,947 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:10:30,947 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:10:30,947 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 04:10:30,947 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:10:30,948 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:10:30,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:10:30,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:10:30,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:10:30,948 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:10:30,950 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-29 04:10:30,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:10:30,953 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:30,955 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:10:30,955 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:10:30,955 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:10:30,955 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:10:30,955 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:10:30,956 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:10:30,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:10:30,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:10:30,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:10:30,956 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:10:30,957 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-29 04:10:30,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:10:30,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:30,962 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:10:30,962 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:10:30,962 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:10:30,962 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:10:30,963 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:10:30,963 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:10:30,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:10:30,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:10:30,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:10:30,963 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:10:30,965 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-29 04:10:30,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:10:30,967 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:30,970 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:10:30,970 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:10:30,970 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:10:30,970 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:10:30,970 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:10:30,971 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:10:30,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:10:30,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:10:30,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:10:30,971 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:10:30,973 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-29 04:10:30,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:10:30,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:30,977 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:10:30,977 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:10:30,978 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:10:30,978 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:10:30,978 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:10:30,978 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:10:30,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:10:30,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:10:30,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:10:30,979 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:10:30,980 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-29 04:10:30,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:10:30,983 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:30,985 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:10:30,985 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:10:30,985 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:10:30,986 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:10:30,986 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:10:30,986 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:10:30,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:10:30,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:10:30,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:10:30,986 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:10:30,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-10-29 04:10:30,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:10:30,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:30,992 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:10:30,992 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:10:30,992 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:10:30,992 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:10:30,992 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:10:30,992 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:10:30,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:10:30,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:10:30,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:10:30,993 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:10:30,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-10-29 04:10:30,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:10:30,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:30,998 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:10:30,999 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:10:30,999 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:10:30,999 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:10:30,999 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:10:30,999 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:10:30,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:10:30,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:10:31,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:10:31,000 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:10:31,001 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-10-29 04:10:31,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:10:31,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:31,006 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:10:31,006 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:10:31,006 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:10:31,006 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:10:31,006 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:10:31,007 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:10:31,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:10:31,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:10:31,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:10:31,007 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:10:31,009 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2020-10-29 04:10:31,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:10:31,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:31,017 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:10:31,017 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:10:31,017 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:10:31,017 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:10:31,017 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:10:31,017 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:10:31,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:10:31,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:10:31,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:10:31,018 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:10:31,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2020-10-29 04:10:31,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:10:31,022 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:31,023 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:10:31,023 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:10:31,024 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:10:31,024 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:10:31,024 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:10:31,024 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:10:31,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:10:31,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 04:10:31,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:10:31,025 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:10:31,107 INFO L134 CoverageAnalysis]: Checked inductivity of 530 backedges. 76 proven. 211 refuted. 0 times theorem prover too weak. 243 trivial. 0 not checked. [2020-10-29 04:10:31,108 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2086734809] [2020-10-29 04:10:31,108 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:10:31,108 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2020-10-29 04:10:31,108 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1291267132] [2020-10-29 04:10:31,109 INFO L461 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-10-29 04:10:31,109 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:10:31,109 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-10-29 04:10:31,109 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=290, Unknown=0, NotChecked=0, Total=342 [2020-10-29 04:10:31,110 INFO L87 Difference]: Start difference. First operand 157 states and 172 transitions. Second operand 19 states. [2020-10-29 04:10:33,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:10:33,633 INFO L93 Difference]: Finished difference Result 209 states and 231 transitions. [2020-10-29 04:10:33,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-10-29 04:10:33,634 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 181 [2020-10-29 04:10:33,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:10:33,635 INFO L225 Difference]: With dead ends: 209 [2020-10-29 04:10:33,635 INFO L226 Difference]: Without dead ends: 192 [2020-10-29 04:10:33,636 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 26 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 193 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=147, Invalid=1043, Unknown=0, NotChecked=0, Total=1190 [2020-10-29 04:10:33,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2020-10-29 04:10:33,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 157. [2020-10-29 04:10:33,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 157 states. [2020-10-29 04:10:33,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 171 transitions. [2020-10-29 04:10:33,666 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 171 transitions. Word has length 181 [2020-10-29 04:10:33,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:10:33,666 INFO L481 AbstractCegarLoop]: Abstraction has 157 states and 171 transitions. [2020-10-29 04:10:33,667 INFO L482 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-10-29 04:10:33,667 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 171 transitions. [2020-10-29 04:10:33,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2020-10-29 04:10:33,668 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:10:33,668 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 11, 10, 10, 10, 10, 10, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1] [2020-10-29 04:10:33,668 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2020-10-29 04:10:33,668 INFO L429 AbstractCegarLoop]: === Iteration 30 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:10:33,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:10:33,669 INFO L82 PathProgramCache]: Analyzing trace with hash -1398841803, now seen corresponding path program 13 times [2020-10-29 04:10:33,669 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:10:33,669 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2091648001] [2020-10-29 04:10:33,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:10:33,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:10:34,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:37,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:44,304 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:10:44,305 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 213 [2020-10-29 04:10:44,305 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 04:10:44,305 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10447 [2020-10-29 04:10:44,305 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:10:44,305 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:10:44,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 42 [2020-10-29 04:10:44,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-29 04:10:44,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 183 [2020-10-29 04:10:44,306 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0