/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.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=0.2 --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 -i ../../../trunk/examples/svcomp/reducercommutativity/max10-1.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-15 02:12:46,108 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-15 02:12:46,112 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-15 02:12:46,155 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-15 02:12:46,155 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-15 02:12:46,163 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-15 02:12:46,165 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-15 02:12:46,169 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-15 02:12:46,172 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-15 02:12:46,176 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-15 02:12:46,177 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-15 02:12:46,178 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-15 02:12:46,178 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-15 02:12:46,181 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-15 02:12:46,183 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-15 02:12:46,185 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-15 02:12:46,187 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-15 02:12:46,189 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-15 02:12:46,191 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-15 02:12:46,199 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-15 02:12:46,201 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-15 02:12:46,202 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-15 02:12:46,203 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-15 02:12:46,204 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-15 02:12:46,216 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-15 02:12:46,217 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-15 02:12:46,217 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-15 02:12:46,218 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-15 02:12:46,218 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-15 02:12:46,219 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-15 02:12:46,220 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-15 02:12:46,221 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-15 02:12:46,222 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-15 02:12:46,222 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-15 02:12:46,223 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-15 02:12:46,224 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-15 02:12:46,224 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-15 02:12:46,224 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-15 02:12:46,225 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-15 02:12:46,226 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-15 02:12:46,227 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-15 02:12:46,228 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 [2020-10-15 02:12:46,269 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-15 02:12:46,269 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-15 02:12:46,272 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-15 02:12:46,272 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-15 02:12:46,272 INFO L138 SettingsManager]: * Use SBE=true [2020-10-15 02:12:46,272 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-15 02:12:46,273 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-15 02:12:46,273 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-15 02:12:46,273 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-15 02:12:46,273 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-15 02:12:46,274 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-15 02:12:46,275 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-15 02:12:46,275 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-15 02:12:46,275 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-15 02:12:46,275 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-15 02:12:46,276 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-15 02:12:46,276 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-15 02:12:46,276 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-15 02:12:46,276 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-15 02:12:46,276 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-15 02:12:46,277 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-15 02:12:46,277 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-15 02:12:46,277 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-15 02:12:46,277 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-15 02:12:46,277 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-15 02:12:46,278 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-15 02:12:46,278 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-15 02:12:46,278 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-15 02:12:46,278 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-15 02:12:46,278 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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=0.2;log-additional-information=true;unknown-allowed=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=0.2;log-additional-information=true;unknown-allowed=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=0.2;log-additional-information=true;unknown-allowed=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=0.2;log-additional-information=true;unknown-allowed=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=0.2;log-additional-information=true;unknown-allowed=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=0.2;log-additional-information=true;unknown-allowed=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=0.2;log-additional-information=true;unknown-allowed=true; [2020-10-15 02:12:46,610 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-15 02:12:46,624 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-15 02:12:46,627 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-15 02:12:46,629 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-15 02:12:46,630 INFO L275 PluginConnector]: CDTParser initialized [2020-10-15 02:12:46,631 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/reducercommutativity/max10-1.i [2020-10-15 02:12:46,696 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/953efce09/d43913f170244c7cb03ca538ef283111/FLAGdd9731c28 [2020-10-15 02:12:47,135 INFO L306 CDTParser]: Found 1 translation units. [2020-10-15 02:12:47,136 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/reducercommutativity/max10-1.i [2020-10-15 02:12:47,143 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/953efce09/d43913f170244c7cb03ca538ef283111/FLAGdd9731c28 [2020-10-15 02:12:47,548 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/953efce09/d43913f170244c7cb03ca538ef283111 [2020-10-15 02:12:47,558 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-15 02:12:47,560 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-15 02:12:47,561 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-15 02:12:47,561 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-15 02:12:47,565 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-15 02:12:47,566 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 02:12:47" (1/1) ... [2020-10-15 02:12:47,569 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4b5d0024 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:12:47, skipping insertion in model container [2020-10-15 02:12:47,569 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 02:12:47" (1/1) ... [2020-10-15 02:12:47,578 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-15 02:12:47,599 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-15 02:12:47,781 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 02:12:47,791 INFO L203 MainTranslator]: Completed pre-run [2020-10-15 02:12:47,816 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 02:12:47,834 INFO L208 MainTranslator]: Completed translation [2020-10-15 02:12:47,834 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:12:47 WrapperNode [2020-10-15 02:12:47,834 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-15 02:12:47,835 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-15 02:12:47,835 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-15 02:12:47,835 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-15 02:12:47,937 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:12:47" (1/1) ... [2020-10-15 02:12:47,937 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:12:47" (1/1) ... [2020-10-15 02:12:47,946 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:12:47" (1/1) ... [2020-10-15 02:12:47,947 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:12:47" (1/1) ... [2020-10-15 02:12:47,956 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:12:47" (1/1) ... [2020-10-15 02:12:47,962 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:12:47" (1/1) ... [2020-10-15 02:12:47,963 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:12:47" (1/1) ... [2020-10-15 02:12:47,966 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-15 02:12:47,966 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-15 02:12:47,967 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-15 02:12:47,967 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-15 02:12:47,968 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:12:47" (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 [2020-10-15 02:12:48,035 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-15 02:12:48,035 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-15 02:12:48,036 INFO L138 BoogieDeclarations]: Found implementation of procedure max [2020-10-15 02:12:48,036 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-15 02:12:48,036 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-15 02:12:48,036 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-15 02:12:48,036 INFO L130 BoogieDeclarations]: Found specification of procedure max [2020-10-15 02:12:48,037 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-15 02:12:48,037 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-15 02:12:48,037 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-15 02:12:48,037 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-15 02:12:48,037 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-15 02:12:48,037 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-15 02:12:48,038 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-15 02:12:48,360 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-15 02:12:48,360 INFO L295 CfgBuilder]: Removed 3 assume(true) statements. [2020-10-15 02:12:48,364 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 02:12:48 BoogieIcfgContainer [2020-10-15 02:12:48,365 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-15 02:12:48,366 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-15 02:12:48,366 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-15 02:12:48,369 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-15 02:12:48,370 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 02:12:47" (1/3) ... [2020-10-15 02:12:48,371 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24f3f000 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 02:12:48, skipping insertion in model container [2020-10-15 02:12:48,371 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:12:47" (2/3) ... [2020-10-15 02:12:48,371 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24f3f000 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 02:12:48, skipping insertion in model container [2020-10-15 02:12:48,371 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 02:12:48" (3/3) ... [2020-10-15 02:12:48,373 INFO L109 eAbstractionObserver]: Analyzing ICFG max10-1.i [2020-10-15 02:12:48,384 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-15 02:12:48,391 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-15 02:12:48,410 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-15 02:12:48,437 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-15 02:12:48,438 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-15 02:12:48,438 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-15 02:12:48,438 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-15 02:12:48,438 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-15 02:12:48,438 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-15 02:12:48,439 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-15 02:12:48,439 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-15 02:12:48,465 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states. [2020-10-15 02:12:48,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-10-15 02:12:48,472 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:12:48,473 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:12:48,474 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:12:48,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:12:48,480 INFO L82 PathProgramCache]: Analyzing trace with hash 1379671032, now seen corresponding path program 1 times [2020-10-15 02:12:48,487 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:12:48,487 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1942740875] [2020-10-15 02:12:48,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:12:48,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:48,629 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:48,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:48,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:48,767 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:49,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:49,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:50,111 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:50,111 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-10-15 02:12:50,111 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-15 02:12:50,112 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1505 [2020-10-15 02:12:50,116 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:50,117 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:50,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-15 02:12:50,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-15 02:12:50,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-10-15 02:12:50,118 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-10-15 02:12:50,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:12:50,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:50,389 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:50,391 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:50,392 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:12:50,392 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:50,393 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:12:50,394 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:50,394 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:50,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:12:50,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:12:50,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:12:50,396 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-15 02:12:50,402 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-15 02:12:50,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:50,413 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:50,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:50,458 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:50,458 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:12:50,458 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-15 02:12:50,459 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-15 02:12:50,459 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:50,459 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:50,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:12:50,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:12:50,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:12:50,460 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:12:50,545 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-10-15 02:12:50,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:50,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:50,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:50,584 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:50,584 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:12:50,584 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-15 02:12:50,585 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-15 02:12:50,585 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:50,585 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:50,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-15 02:12:50,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:12:50,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 02:12:50,587 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:12:50,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-15 02:12:50,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:50,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:50,629 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:50,651 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:50,652 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:12:50,652 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-15 02:12:50,652 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-10-15 02:12:50,652 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:50,653 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:50,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-15 02:12:50,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:12:50,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 02:12:50,655 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-15 02:12:50,686 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-10-15 02:12:50,688 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1942740875] [2020-10-15 02:12:50,690 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:12:50,691 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-15 02:12:50,693 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1295072463] [2020-10-15 02:12:50,700 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-15 02:12:50,704 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:12:50,721 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-15 02:12:50,723 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2020-10-15 02:12:50,725 INFO L87 Difference]: Start difference. First operand 33 states. Second operand 11 states. [2020-10-15 02:12:51,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:12:51,147 INFO L93 Difference]: Finished difference Result 89 states and 129 transitions. [2020-10-15 02:12:51,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-15 02:12:51,149 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 32 [2020-10-15 02:12:51,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:12:51,161 INFO L225 Difference]: With dead ends: 89 [2020-10-15 02:12:51,162 INFO L226 Difference]: Without dead ends: 54 [2020-10-15 02:12:51,166 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=41, Invalid=169, Unknown=0, NotChecked=0, Total=210 [2020-10-15 02:12:51,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2020-10-15 02:12:51,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 39. [2020-10-15 02:12:51,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2020-10-15 02:12:51,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 51 transitions. [2020-10-15 02:12:51,223 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 51 transitions. Word has length 32 [2020-10-15 02:12:51,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:12:51,224 INFO L479 AbstractCegarLoop]: Abstraction has 39 states and 51 transitions. [2020-10-15 02:12:51,224 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-15 02:12:51,224 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 51 transitions. [2020-10-15 02:12:51,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2020-10-15 02:12:51,228 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:12:51,228 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:12:51,228 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-15 02:12:51,229 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:12:51,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:12:51,229 INFO L82 PathProgramCache]: Analyzing trace with hash 1328588870, now seen corresponding path program 1 times [2020-10-15 02:12:51,229 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:12:51,230 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [216716150] [2020-10-15 02:12:51,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:12:51,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:51,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:51,254 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:51,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:51,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:51,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:52,327 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:52,328 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-10-15 02:12:52,328 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-15 02:12:52,328 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1086 [2020-10-15 02:12:52,329 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:52,329 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:52,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:12:52,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 36 [2020-10-15 02:12:52,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:12:52,330 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:12:52,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:12:52,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:52,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:52,355 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:52,355 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:12:52,355 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:52,356 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 02:12:52,356 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:52,356 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:52,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:12:52,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:12:52,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:12:52,357 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:12:52,359 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-15 02:12:52,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:52,361 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:52,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:52,370 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:52,371 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:12:52,371 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-15 02:12:52,371 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-15 02:12:52,371 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:52,372 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:52,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:12:52,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-15 02:12:52,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 02:12:52,373 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:12:52,385 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-10-15 02:12:52,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:52,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:52,389 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:52,396 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:52,397 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:12:52,397 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-15 02:12:52,397 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-15 02:12:52,398 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:52,398 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:52,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:12:52,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-15 02:12:52,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 02:12:52,399 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:12:52,401 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-15 02:12:52,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:52,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:52,424 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:52,425 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-15 02:12:52,425 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:52,426 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-15 02:12:52,426 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:52,426 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:52,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:12:52,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-15 02:12:52,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:12:52,427 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:12:52,438 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-10-15 02:12:52,439 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [216716150] [2020-10-15 02:12:52,439 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-15 02:12:52,439 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-15 02:12:52,440 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [645684329] [2020-10-15 02:12:52,442 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 02:12:52,442 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:12:52,442 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 02:12:52,443 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-15 02:12:52,443 INFO L87 Difference]: Start difference. First operand 39 states and 51 transitions. Second operand 5 states. [2020-10-15 02:12:52,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:12:52,583 INFO L93 Difference]: Finished difference Result 66 states and 90 transitions. [2020-10-15 02:12:52,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 02:12:52,584 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 36 [2020-10-15 02:12:52,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:12:52,585 INFO L225 Difference]: With dead ends: 66 [2020-10-15 02:12:52,585 INFO L226 Difference]: Without dead ends: 36 [2020-10-15 02:12:52,587 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-15 02:12:52,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2020-10-15 02:12:52,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 33. [2020-10-15 02:12:52,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2020-10-15 02:12:52,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 39 transitions. [2020-10-15 02:12:52,595 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 39 transitions. Word has length 36 [2020-10-15 02:12:52,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:12:52,595 INFO L479 AbstractCegarLoop]: Abstraction has 33 states and 39 transitions. [2020-10-15 02:12:52,596 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 02:12:52,596 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 39 transitions. [2020-10-15 02:12:52,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2020-10-15 02:12:52,598 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:12:52,598 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:12:52,598 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-15 02:12:52,598 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:12:52,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:12:52,599 INFO L82 PathProgramCache]: Analyzing trace with hash 981704641, now seen corresponding path program 2 times [2020-10-15 02:12:52,599 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:12:52,599 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [535170835] [2020-10-15 02:12:52,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:12:52,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:52,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:52,629 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:52,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:52,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:52,686 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:55,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:55,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:57,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:57,625 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:57,626 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 68 [2020-10-15 02:12:57,626 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-15 02:12:57,626 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5010 [2020-10-15 02:12:57,626 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:57,627 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:57,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-10-15 02:12:57,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-15 02:12:57,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-10-15 02:12:57,627 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:12:57,714 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:12:57,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:57,717 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:57,719 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:57,719 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:12:57,720 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:57,720 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:12:57,720 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:57,721 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:57,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:12:57,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:12:57,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:12:57,722 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:12:57,724 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-15 02:12:57,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:57,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:57,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:57,889 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:57,889 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-15 02:12:57,890 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-15 02:12:57,890 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 158 [2020-10-15 02:12:57,890 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:57,890 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:57,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-15 02:12:57,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:12:57,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-15 02:12:57,891 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:12:58,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-15 02:12:58,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:58,107 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:58,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:58,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:58,265 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:58,265 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-15 02:12:58,266 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-15 02:12:58,266 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 160 [2020-10-15 02:12:58,266 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:58,266 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:58,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:12:58,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:12:58,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-15 02:12:58,269 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-15 02:12:58,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-15 02:12:58,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:58,280 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:58,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:58,411 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:58,411 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-15 02:12:58,411 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-15 02:12:58,412 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 133 [2020-10-15 02:12:58,412 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:58,412 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:58,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-15 02:12:58,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-15 02:12:58,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-15 02:12:58,413 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:12:58,544 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 27 proven. 48 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-10-15 02:12:58,545 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [535170835] [2020-10-15 02:12:58,545 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-15 02:12:58,545 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-10-15 02:12:58,546 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1035950140] [2020-10-15 02:12:58,546 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-15 02:12:58,546 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:12:58,547 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-15 02:12:58,548 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2020-10-15 02:12:58,548 INFO L87 Difference]: Start difference. First operand 33 states and 39 transitions. Second operand 14 states. [2020-10-15 02:12:59,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:12:59,430 INFO L93 Difference]: Finished difference Result 96 states and 118 transitions. [2020-10-15 02:12:59,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-15 02:12:59,431 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 56 [2020-10-15 02:12:59,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:12:59,435 INFO L225 Difference]: With dead ends: 96 [2020-10-15 02:12:59,436 INFO L226 Difference]: Without dead ends: 74 [2020-10-15 02:12:59,437 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=113, Invalid=487, Unknown=0, NotChecked=0, Total=600 [2020-10-15 02:12:59,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2020-10-15 02:12:59,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 64. [2020-10-15 02:12:59,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2020-10-15 02:12:59,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 81 transitions. [2020-10-15 02:12:59,469 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 81 transitions. Word has length 56 [2020-10-15 02:12:59,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:12:59,469 INFO L479 AbstractCegarLoop]: Abstraction has 64 states and 81 transitions. [2020-10-15 02:12:59,470 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-15 02:12:59,470 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 81 transitions. [2020-10-15 02:12:59,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2020-10-15 02:12:59,481 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:12:59,481 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 4, 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] [2020-10-15 02:12:59,482 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-15 02:12:59,482 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:12:59,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:12:59,483 INFO L82 PathProgramCache]: Analyzing trace with hash -1783061631, now seen corresponding path program 1 times [2020-10-15 02:12:59,484 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:12:59,485 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [571820851] [2020-10-15 02:12:59,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:12:59,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:59,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:59,517 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:59,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:59,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:13:00,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:13:04,522 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:13:04,522 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 68 [2020-10-15 02:13:04,522 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-15 02:13:04,523 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5018 [2020-10-15 02:13:04,523 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:13:04,523 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:13:04,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:13:04,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 33 [2020-10-15 02:13:04,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-15 02:13:04,524 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:13:04,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:13:04,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:13:04,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:13:04,552 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:13:04,552 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:13:04,553 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:13:04,553 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:13:04,553 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:13:04,553 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:13:04,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:13:04,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:13:04,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:13:04,554 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:13:04,558 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-15 02:13:04,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:13:04,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:13:04,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:13:04,597 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:13:04,597 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-15 02:13:04,597 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-15 02:13:04,598 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-15 02:13:04,598 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:13:04,598 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:13:04,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:13:04,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-15 02:13:04,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-15 02:13:04,599 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:13:04,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-15 02:13:04,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:13:04,629 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:13:04,651 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:13:04,651 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-15 02:13:04,651 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:13:04,652 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-15 02:13:04,652 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:13:04,652 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:13:04,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:13:04,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-15 02:13:04,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-15 02:13:04,653 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:13:04,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-15 02:13:04,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:13:04,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:13:04,668 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:13:04,699 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:13:04,699 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-15 02:13:04,699 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-15 02:13:04,699 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-15 02:13:04,700 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:13:04,700 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:13:04,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:13:04,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-15 02:13:04,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-15 02:13:04,701 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:13:04,711 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 18 proven. 36 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2020-10-15 02:13:04,712 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [571820851] [2020-10-15 02:13:04,712 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-15 02:13:04,713 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-15 02:13:04,713 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [453149256] [2020-10-15 02:13:04,714 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-15 02:13:04,714 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:13:04,714 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-15 02:13:04,715 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-15 02:13:04,715 INFO L87 Difference]: Start difference. First operand 64 states and 81 transitions. Second operand 6 states. [2020-10-15 02:13:04,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:13:04,860 INFO L93 Difference]: Finished difference Result 133 states and 179 transitions. [2020-10-15 02:13:04,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-15 02:13:04,860 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 56 [2020-10-15 02:13:04,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:13:04,863 INFO L225 Difference]: With dead ends: 133 [2020-10-15 02:13:04,863 INFO L226 Difference]: Without dead ends: 78 [2020-10-15 02:13:04,868 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-10-15 02:13:04,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2020-10-15 02:13:04,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 72. [2020-10-15 02:13:04,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2020-10-15 02:13:04,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 91 transitions. [2020-10-15 02:13:04,892 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 91 transitions. Word has length 56 [2020-10-15 02:13:04,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:13:04,893 INFO L479 AbstractCegarLoop]: Abstraction has 72 states and 91 transitions. [2020-10-15 02:13:04,893 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-15 02:13:04,893 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 91 transitions. [2020-10-15 02:13:04,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-10-15 02:13:04,899 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:13:04,900 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 7, 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] [2020-10-15 02:13:04,900 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-15 02:13:04,900 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:13:04,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:13:04,901 INFO L82 PathProgramCache]: Analyzing trace with hash -1260494052, now seen corresponding path program 2 times [2020-10-15 02:13:04,901 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:13:04,902 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1171893736] [2020-10-15 02:13:04,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:13:04,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:13:04,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:13:04,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:13:04,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:13:04,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:13:07,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:13:07,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:13:08,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:13:09,927 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:13:09,928 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-15 02:13:09,928 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-15 02:13:09,928 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5015 [2020-10-15 02:13:09,929 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:13:09,929 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:13:09,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-10-15 02:13:09,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-15 02:13:09,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-15 02:13:09,930 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:13:10,309 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 38 [2020-10-15 02:13:12,661 WARN L193 SmtUtils]: Spent 2.23 s on a formula simplification. DAG size of input: 73 DAG size of output: 59 [2020-10-15 02:13:12,875 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 52 [2020-10-15 02:13:13,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:13:13,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:13:13,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:13:13,077 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:13:13,078 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:13:13,078 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:13:13,078 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:13:13,078 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:13:13,079 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:13:13,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:13:13,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:13:13,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:13:13,079 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:13:13,081 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-15 02:13:13,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:13:13,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:13:13,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:13:13,276 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:13:13,277 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-15 02:13:13,277 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-15 02:13:13,277 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 186 [2020-10-15 02:13:13,277 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:13:13,278 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:13:13,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-15 02:13:13,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:13:13,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-15 02:13:13,279 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:13:13,870 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 36 [2020-10-15 02:13:13,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-15 02:13:13,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:13:13,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:13:14,037 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:13:14,419 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:13:14,419 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-15 02:13:14,419 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-15 02:13:14,419 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 536 [2020-10-15 02:13:14,420 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:13:14,420 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:13:14,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-15 02:13:14,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:13:14,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-15 02:13:14,421 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:13:14,736 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-10-15 02:13:14,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:13:14,744 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:13:14,831 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:13:15,187 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:13:15,187 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-15 02:13:15,188 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-15 02:13:15,188 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 444 [2020-10-15 02:13:15,188 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:13:15,189 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:13:15,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-15 02:13:15,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:13:15,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-15 02:13:15,190 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:13:15,506 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 20 proven. 135 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2020-10-15 02:13:15,506 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1171893736] [2020-10-15 02:13:15,506 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-15 02:13:15,507 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2020-10-15 02:13:15,507 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1131413191] [2020-10-15 02:13:15,507 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-10-15 02:13:15,508 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:13:15,508 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-10-15 02:13:15,508 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2020-10-15 02:13:15,509 INFO L87 Difference]: Start difference. First operand 72 states and 91 transitions. Second operand 18 states. [2020-10-15 02:13:17,100 WARN L193 SmtUtils]: Spent 386.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 72 [2020-10-15 02:13:17,768 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2020-10-15 02:13:18,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:13:18,141 INFO L93 Difference]: Finished difference Result 138 states and 195 transitions. [2020-10-15 02:13:18,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-15 02:13:18,151 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 68 [2020-10-15 02:13:18,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:13:18,155 INFO L225 Difference]: With dead ends: 138 [2020-10-15 02:13:18,155 INFO L226 Difference]: Without dead ends: 134 [2020-10-15 02:13:18,156 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 13 SyntacticMatches, 3 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 110 ImplicationChecksByTransitivity, 4.9s TimeCoverageRelationStatistics Valid=97, Invalid=715, Unknown=0, NotChecked=0, Total=812 [2020-10-15 02:13:18,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2020-10-15 02:13:18,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 104. [2020-10-15 02:13:18,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 104 states. [2020-10-15 02:13:18,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 149 transitions. [2020-10-15 02:13:18,199 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 149 transitions. Word has length 68 [2020-10-15 02:13:18,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:13:18,200 INFO L479 AbstractCegarLoop]: Abstraction has 104 states and 149 transitions. [2020-10-15 02:13:18,200 INFO L480 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-10-15 02:13:18,200 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 149 transitions. [2020-10-15 02:13:18,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-10-15 02:13:18,202 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:13:18,203 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 6, 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] [2020-10-15 02:13:18,203 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-15 02:13:18,203 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:13:18,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:13:18,203 INFO L82 PathProgramCache]: Analyzing trace with hash -1653521062, now seen corresponding path program 3 times [2020-10-15 02:13:18,204 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:13:18,204 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2065149542] [2020-10-15 02:13:18,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:13:18,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:13:18,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:13:18,217 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:13:18,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:13:18,242 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:13:18,773 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:13:19,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:13:23,212 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:13:23,213 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-15 02:13:23,214 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-15 02:13:23,214 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-15 02:13:23,214 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:13:23,214 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:13:23,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20 [2020-10-15 02:13:23,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-15 02:13:23,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-10-15 02:13:23,215 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:13:23,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:13:23,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:13:23,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:13:23,256 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:13:23,256 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:13:23,257 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:13:23,257 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 02:13:23,257 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:13:23,257 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:13:23,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:13:23,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:13:23,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:13:23,259 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:13:23,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-15 02:13:23,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:13:23,266 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:13:23,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:13:23,356 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:13:23,357 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-15 02:13:23,357 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-15 02:13:23,357 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 92 [2020-10-15 02:13:23,357 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:13:23,358 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:13:23,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-15 02:13:23,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:13:23,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-15 02:13:23,358 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:13:23,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-15 02:13:23,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:13:23,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:13:23,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:13:23,548 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:13:23,629 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:13:23,630 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-15 02:13:23,630 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-15 02:13:23,630 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 123 [2020-10-15 02:13:23,630 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:13:23,631 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:13:23,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:13:23,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:13:23,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-15 02:13:23,632 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:13:23,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-10-15 02:13:23,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:13:23,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:13:23,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:13:23,731 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:13:23,731 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-15 02:13:23,731 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-15 02:13:23,731 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 88 [2020-10-15 02:13:23,732 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:13:23,732 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:13:23,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-15 02:13:23,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-15 02:13:23,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-15 02:13:23,733 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:13:24,097 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 52 proven. 116 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-10-15 02:13:24,097 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2065149542] [2020-10-15 02:13:24,097 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-15 02:13:24,098 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21] total 21 [2020-10-15 02:13:24,098 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1259204049] [2020-10-15 02:13:24,098 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-10-15 02:13:24,099 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:13:24,099 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-10-15 02:13:24,099 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=370, Unknown=0, NotChecked=0, Total=420 [2020-10-15 02:13:24,100 INFO L87 Difference]: Start difference. First operand 104 states and 149 transitions. Second operand 21 states. [2020-10-15 02:13:27,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:13:27,191 INFO L93 Difference]: Finished difference Result 344 states and 554 transitions. [2020-10-15 02:13:27,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2020-10-15 02:13:27,193 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 68 [2020-10-15 02:13:27,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:13:27,200 INFO L225 Difference]: With dead ends: 344 [2020-10-15 02:13:27,200 INFO L226 Difference]: Without dead ends: 284 [2020-10-15 02:13:27,203 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 734 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=331, Invalid=2639, Unknown=0, NotChecked=0, Total=2970 [2020-10-15 02:13:27,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 284 states. [2020-10-15 02:13:27,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 284 to 250. [2020-10-15 02:13:27,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 250 states. [2020-10-15 02:13:27,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 250 states and 408 transitions. [2020-10-15 02:13:27,265 INFO L78 Accepts]: Start accepts. Automaton has 250 states and 408 transitions. Word has length 68 [2020-10-15 02:13:27,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:13:27,265 INFO L479 AbstractCegarLoop]: Abstraction has 250 states and 408 transitions. [2020-10-15 02:13:27,265 INFO L480 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-10-15 02:13:27,265 INFO L276 IsEmpty]: Start isEmpty. Operand 250 states and 408 transitions. [2020-10-15 02:13:27,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-10-15 02:13:27,270 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:13:27,270 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 6, 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] [2020-10-15 02:13:27,270 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-15 02:13:27,271 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:13:27,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:13:27,271 INFO L82 PathProgramCache]: Analyzing trace with hash 1658418778, now seen corresponding path program 4 times [2020-10-15 02:13:27,271 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:13:27,272 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [657600429] [2020-10-15 02:13:27,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:13:27,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:13:27,280 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:13:27,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:13:27,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:13:27,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:13:27,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:13:27,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:13:28,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:13:32,281 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:13:32,281 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-15 02:13:32,282 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-15 02:13:32,282 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-15 02:13:32,282 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:13:32,283 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:13:32,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-15 02:13:32,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-15 02:13:32,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 49 [2020-10-15 02:13:32,283 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:13:32,317 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:13:32,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:13:32,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:13:32,322 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:13:32,323 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:13:32,323 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:13:32,323 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:13:32,323 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:13:32,323 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:13:32,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:13:32,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:13:32,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:13:32,325 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:13:32,327 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-15 02:13:32,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:13:32,335 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:13:32,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:13:32,406 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:13:32,406 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-15 02:13:32,406 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-15 02:13:32,407 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 73 [2020-10-15 02:13:32,407 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:13:32,407 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:13:32,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-15 02:13:32,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:13:32,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-15 02:13:32,407 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:13:32,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-15 02:13:32,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:13:32,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:13:32,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:13:32,595 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:13:32,595 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-15 02:13:32,595 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-15 02:13:32,596 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-15 02:13:32,596 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:13:32,596 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:13:32,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:13:32,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:13:32,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-15 02:13:32,596 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:13:32,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-10-15 02:13:32,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:13:32,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:13:32,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:13:32,641 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:13:32,641 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-15 02:13:32,642 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-15 02:13:32,642 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-15 02:13:32,642 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:13:32,642 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:13:32,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-15 02:13:32,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-15 02:13:32,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-15 02:13:32,642 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:13:32,733 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 46 proven. 109 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2020-10-15 02:13:32,734 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [657600429] [2020-10-15 02:13:32,734 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-15 02:13:32,735 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-10-15 02:13:32,735 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1538995088] [2020-10-15 02:13:32,736 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-15 02:13:32,736 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:13:32,736 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-15 02:13:32,737 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=181, Unknown=0, NotChecked=0, Total=210 [2020-10-15 02:13:32,737 INFO L87 Difference]: Start difference. First operand 250 states and 408 transitions. Second operand 15 states. [2020-10-15 02:13:34,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:13:34,198 INFO L93 Difference]: Finished difference Result 452 states and 698 transitions. [2020-10-15 02:13:34,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-15 02:13:34,200 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 68 [2020-10-15 02:13:34,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:13:34,204 INFO L225 Difference]: With dead ends: 452 [2020-10-15 02:13:34,204 INFO L226 Difference]: Without dead ends: 303 [2020-10-15 02:13:34,207 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 131 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=170, Invalid=822, Unknown=0, NotChecked=0, Total=992 [2020-10-15 02:13:34,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 303 states. [2020-10-15 02:13:34,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 303 to 287. [2020-10-15 02:13:34,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 287 states. [2020-10-15 02:13:34,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 287 states to 287 states and 458 transitions. [2020-10-15 02:13:34,262 INFO L78 Accepts]: Start accepts. Automaton has 287 states and 458 transitions. Word has length 68 [2020-10-15 02:13:34,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:13:34,263 INFO L479 AbstractCegarLoop]: Abstraction has 287 states and 458 transitions. [2020-10-15 02:13:34,263 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-15 02:13:34,263 INFO L276 IsEmpty]: Start isEmpty. Operand 287 states and 458 transitions. [2020-10-15 02:13:34,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-10-15 02:13:34,268 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:13:34,268 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 6, 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] [2020-10-15 02:13:34,268 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-15 02:13:34,269 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:13:34,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:13:34,269 INFO L82 PathProgramCache]: Analyzing trace with hash -1741574310, now seen corresponding path program 5 times [2020-10-15 02:13:34,269 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:13:34,269 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1749396336] [2020-10-15 02:13:34,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:13:34,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:13:34,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:13:34,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:13:34,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:13:34,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:13:34,326 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:13:34,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:13:35,072 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:13:36,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:13:39,279 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:13:39,279 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-15 02:13:39,279 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-15 02:13:39,279 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-15 02:13:39,279 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:13:39,280 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:13:39,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20 [2020-10-15 02:13:39,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-15 02:13:39,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-10-15 02:13:39,280 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:13:39,320 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:13:39,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:13:39,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:13:39,323 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:13:39,323 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:13:39,324 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:13:39,324 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 02:13:39,324 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:13:39,324 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:13:39,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:13:39,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:13:39,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:13:39,325 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:13:39,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-15 02:13:39,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:13:39,329 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:13:39,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:13:39,381 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:13:39,381 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-15 02:13:39,381 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-15 02:13:39,381 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-10-15 02:13:39,381 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:13:39,381 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:13:39,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-15 02:13:39,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:13:39,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-15 02:13:39,382 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:13:39,533 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-15 02:13:39,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:13:39,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:13:39,541 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:13:39,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:13:39,606 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:13:39,606 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-15 02:13:39,606 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-15 02:13:39,606 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 69 [2020-10-15 02:13:39,606 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:13:39,606 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:13:39,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:13:39,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:13:39,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-15 02:13:39,607 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:13:39,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-10-15 02:13:39,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:13:39,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:13:39,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:13:39,673 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:13:39,673 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-15 02:13:39,673 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-15 02:13:39,673 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-10-15 02:13:39,673 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:13:39,673 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:13:39,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-15 02:13:39,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-15 02:13:39,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-15 02:13:39,674 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:13:39,997 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 50 proven. 116 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2020-10-15 02:13:39,998 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1749396336] [2020-10-15 02:13:39,998 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-15 02:13:39,998 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2020-10-15 02:13:39,998 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1572160637] [2020-10-15 02:13:39,999 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-10-15 02:13:39,999 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:13:39,999 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-10-15 02:13:39,999 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=335, Unknown=0, NotChecked=0, Total=380 [2020-10-15 02:13:40,000 INFO L87 Difference]: Start difference. First operand 287 states and 458 transitions. Second operand 20 states. [2020-10-15 02:13:42,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:13:42,812 INFO L93 Difference]: Finished difference Result 527 states and 824 transitions. [2020-10-15 02:13:42,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2020-10-15 02:13:42,813 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 68 [2020-10-15 02:13:42,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:13:42,818 INFO L225 Difference]: With dead ends: 527 [2020-10-15 02:13:42,818 INFO L226 Difference]: Without dead ends: 403 [2020-10-15 02:13:42,821 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 698 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=320, Invalid=2542, Unknown=0, NotChecked=0, Total=2862 [2020-10-15 02:13:42,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 403 states. [2020-10-15 02:13:42,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 403 to 364. [2020-10-15 02:13:42,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 364 states. [2020-10-15 02:13:42,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 364 states to 364 states and 585 transitions. [2020-10-15 02:13:42,870 INFO L78 Accepts]: Start accepts. Automaton has 364 states and 585 transitions. Word has length 68 [2020-10-15 02:13:42,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:13:42,871 INFO L479 AbstractCegarLoop]: Abstraction has 364 states and 585 transitions. [2020-10-15 02:13:42,871 INFO L480 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-10-15 02:13:42,871 INFO L276 IsEmpty]: Start isEmpty. Operand 364 states and 585 transitions. [2020-10-15 02:13:42,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-10-15 02:13:42,877 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:13:42,877 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 5, 4, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:13:42,877 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-15 02:13:42,877 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:13:42,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:13:42,878 INFO L82 PathProgramCache]: Analyzing trace with hash -1433001446, now seen corresponding path program 6 times [2020-10-15 02:13:42,878 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:13:42,878 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1716784203] [2020-10-15 02:13:42,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:13:42,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:13:42,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:13:42,889 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:13:42,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:13:42,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:13:44,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:13:44,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:13:47,896 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:13:47,897 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-15 02:13:47,897 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-15 02:13:47,897 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5012 [2020-10-15 02:13:47,898 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:13:47,898 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:13:47,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 34 [2020-10-15 02:13:47,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-15 02:13:47,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-15 02:13:47,899 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:13:48,169 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 24 [2020-10-15 02:13:48,469 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 39 [2020-10-15 02:13:48,659 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:13:48,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:13:48,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:13:48,663 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:13:48,663 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:13:48,663 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:13:48,663 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 02:13:48,663 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:13:48,664 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:13:48,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:13:48,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:13:48,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:13:48,664 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:13:48,666 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-15 02:13:48,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:13:48,671 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:13:48,690 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:13:48,802 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:13:48,803 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-15 02:13:48,803 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-15 02:13:48,803 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 133 [2020-10-15 02:13:48,803 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:13:48,804 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:13:48,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-15 02:13:48,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:13:48,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-15 02:13:48,804 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:13:49,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-15 02:13:49,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:13:49,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:13:49,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:13:49,296 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:13:49,296 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-15 02:13:49,297 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-15 02:13:49,297 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 267 [2020-10-15 02:13:49,297 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:13:49,297 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:13:49,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-15 02:13:49,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:13:49,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-15 02:13:49,298 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:13:51,621 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-10-15 02:13:51,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:13:51,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:13:51,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:13:51,737 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:13:51,737 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-15 02:13:51,738 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-15 02:13:51,738 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 110 [2020-10-15 02:13:51,738 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:13:51,738 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:13:51,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-15 02:13:51,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:13:51,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-15 02:13:51,738 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0