/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 SingleStatement --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=WIDEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/recursive/recHanoi01.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 03:08:56,135 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 03:08:56,139 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 03:08:56,184 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 03:08:56,185 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 03:08:56,196 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 03:08:56,198 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 03:08:56,202 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 03:08:56,204 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 03:08:56,208 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 03:08:56,209 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 03:08:56,210 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 03:08:56,210 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 03:08:56,213 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 03:08:56,217 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 03:08:56,218 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 03:08:56,219 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 03:08:56,220 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 03:08:56,222 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 03:08:56,232 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 03:08:56,235 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 03:08:56,236 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 03:08:56,237 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 03:08:56,238 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 03:08:56,241 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 03:08:56,241 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 03:08:56,241 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 03:08:56,244 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 03:08:56,245 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 03:08:56,246 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 03:08:56,246 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 03:08:56,247 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 03:08:56,248 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 03:08:56,249 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 03:08:56,250 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 03:08:56,250 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 03:08:56,251 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 03:08:56,251 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 03:08:56,251 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 03:08:56,252 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 03:08:56,253 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 03:08:56,254 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 [2020-09-25 03:08:56,279 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 03:08:56,279 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 03:08:56,280 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 03:08:56,281 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 03:08:56,281 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 03:08:56,281 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 03:08:56,281 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 03:08:56,282 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 03:08:56,282 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 03:08:56,282 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 03:08:56,282 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 03:08:56,283 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 03:08:56,283 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 03:08:56,283 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 03:08:56,283 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 03:08:56,283 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 03:08:56,284 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 03:08:56,284 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 03:08:56,284 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 03:08:56,284 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 03:08:56,285 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 03:08:56,285 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 03:08:56,285 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 03:08:56,285 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 03:08:56,285 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 03:08:56,286 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 03:08:56,286 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 03:08:56,286 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 03:08:56,286 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 03:08:56,286 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 -> SingleStatement 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=WIDEST;log-additional-information=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=WIDEST;log-additional-information=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=WIDEST;log-additional-information=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=WIDEST;log-additional-information=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=WIDEST;log-additional-information=true; [2020-09-25 03:08:56,748 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 03:08:56,774 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 03:08:56,778 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 03:08:56,781 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 03:08:56,783 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 03:08:56,784 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive/recHanoi01.c [2020-09-25 03:08:56,867 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3fa1817e5/a15a7b8e35aa473d8a0aca7b63d47f07/FLAG6c8751f0f [2020-09-25 03:08:57,384 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 03:08:57,385 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/recursive/recHanoi01.c [2020-09-25 03:08:57,393 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3fa1817e5/a15a7b8e35aa473d8a0aca7b63d47f07/FLAG6c8751f0f [2020-09-25 03:08:57,746 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3fa1817e5/a15a7b8e35aa473d8a0aca7b63d47f07 [2020-09-25 03:08:57,761 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 03:08:57,768 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 03:08:57,772 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 03:08:57,772 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 03:08:57,776 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 03:08:57,778 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 03:08:57" (1/1) ... [2020-09-25 03:08:57,782 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5fee4c1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:08:57, skipping insertion in model container [2020-09-25 03:08:57,783 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 03:08:57" (1/1) ... [2020-09-25 03:08:57,793 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 03:08:57,818 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 03:08:58,029 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 03:08:58,034 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 03:08:58,056 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 03:08:58,078 INFO L208 MainTranslator]: Completed translation [2020-09-25 03:08:58,078 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:08:58 WrapperNode [2020-09-25 03:08:58,079 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 03:08:58,079 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 03:08:58,080 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 03:08:58,080 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 03:08:58,097 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:08:58" (1/1) ... [2020-09-25 03:08:58,097 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:08:58" (1/1) ... [2020-09-25 03:08:58,188 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:08:58" (1/1) ... [2020-09-25 03:08:58,189 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:08:58" (1/1) ... [2020-09-25 03:08:58,194 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:08:58" (1/1) ... [2020-09-25 03:08:58,197 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:08:58" (1/1) ... [2020-09-25 03:08:58,198 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:08:58" (1/1) ... [2020-09-25 03:08:58,200 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 03:08:58,200 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 03:08:58,200 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 03:08:58,201 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 03:08:58,202 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:08:58" (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 [2020-09-25 03:08:58,282 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 03:08:58,282 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 03:08:58,283 INFO L138 BoogieDeclarations]: Found implementation of procedure hanoi [2020-09-25 03:08:58,283 INFO L138 BoogieDeclarations]: Found implementation of procedure applyHanoi [2020-09-25 03:08:58,283 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 03:08:58,283 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 03:08:58,283 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 03:08:58,284 INFO L130 BoogieDeclarations]: Found specification of procedure hanoi [2020-09-25 03:08:58,284 INFO L130 BoogieDeclarations]: Found specification of procedure applyHanoi [2020-09-25 03:08:58,284 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 03:08:58,285 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 03:08:58,285 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 03:08:58,533 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 03:08:58,533 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-25 03:08:58,539 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 03:08:58 BoogieIcfgContainer [2020-09-25 03:08:58,540 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 03:08:58,542 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 03:08:58,542 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 03:08:58,546 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 03:08:58,546 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 03:08:57" (1/3) ... [2020-09-25 03:08:58,547 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1cd4e070 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 03:08:58, skipping insertion in model container [2020-09-25 03:08:58,547 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:08:58" (2/3) ... [2020-09-25 03:08:58,548 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1cd4e070 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 03:08:58, skipping insertion in model container [2020-09-25 03:08:58,548 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 03:08:58" (3/3) ... [2020-09-25 03:08:58,550 INFO L109 eAbstractionObserver]: Analyzing ICFG recHanoi01.c [2020-09-25 03:08:58,563 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 03:08:58,574 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 03:08:58,598 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 03:08:58,630 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 03:08:58,631 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 03:08:58,631 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 03:08:58,631 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 03:08:58,631 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 03:08:58,632 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 03:08:58,632 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 03:08:58,632 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 03:08:58,657 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states. [2020-09-25 03:08:58,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-09-25 03:08:58,669 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:08:58,670 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 03:08:58,671 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:08:58,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:08:58,678 INFO L82 PathProgramCache]: Analyzing trace with hash -1892500808, now seen corresponding path program 1 times [2020-09-25 03:08:58,687 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:08:58,688 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1747142542] [2020-09-25 03:08:58,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:08:58,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:58,855 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:58,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:59,273 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:59,273 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-09-25 03:08:59,273 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 03:08:59,274 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 445 [2020-09-25 03:08:59,277 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:59,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 03:08:59,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-25 03:08:59,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 03:08:59,279 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 03:08:59,369 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:08:59,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:59,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:59,376 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:59,376 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 03:08:59,376 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:08:59,377 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 03:08:59,377 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:59,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:08:59,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:08:59,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:08:59,378 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:08:59,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 03:08:59,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:59,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:59,421 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:59,421 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-25 03:08:59,421 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:08:59,422 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-09-25 03:08:59,422 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:59,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 03:08:59,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:08:59,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-25 03:08:59,423 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:08:59,487 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-25 03:08:59,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:59,493 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:59,508 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:59,509 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:08:59,509 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:08:59,510 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-25 03:08:59,510 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:59,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 03:08:59,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 03:08:59,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 03:08:59,511 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:08:59,577 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 03:08:59,580 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1747142542] [2020-09-25 03:08:59,582 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 03:08:59,582 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 03:08:59,583 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [230184539] [2020-09-25 03:08:59,592 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 03:08:59,593 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:08:59,609 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 03:08:59,610 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-25 03:08:59,612 INFO L87 Difference]: Start difference. First operand 45 states. Second operand 8 states. [2020-09-25 03:08:59,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:08:59,933 INFO L93 Difference]: Finished difference Result 72 states and 84 transitions. [2020-09-25 03:08:59,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-25 03:08:59,936 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 29 [2020-09-25 03:08:59,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:08:59,952 INFO L225 Difference]: With dead ends: 72 [2020-09-25 03:08:59,952 INFO L226 Difference]: Without dead ends: 50 [2020-09-25 03:08:59,957 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2020-09-25 03:08:59,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2020-09-25 03:09:00,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 44. [2020-09-25 03:09:00,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2020-09-25 03:09:00,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 52 transitions. [2020-09-25 03:09:00,027 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 52 transitions. Word has length 29 [2020-09-25 03:09:00,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:09:00,028 INFO L479 AbstractCegarLoop]: Abstraction has 44 states and 52 transitions. [2020-09-25 03:09:00,028 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 03:09:00,028 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 52 transitions. [2020-09-25 03:09:00,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-09-25 03:09:00,031 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:09:00,032 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 03:09:00,032 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 03:09:00,033 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:09:00,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:09:00,033 INFO L82 PathProgramCache]: Analyzing trace with hash -2098647058, now seen corresponding path program 1 times [2020-09-25 03:09:00,034 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:09:00,034 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [17354794] [2020-09-25 03:09:00,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:09:00,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:00,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:00,119 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:00,445 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:00,446 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-09-25 03:09:00,446 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 03:09:00,446 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 397 [2020-09-25 03:09:00,446 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:00,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 03:09:00,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-25 03:09:00,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-09-25 03:09:00,447 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:09:00,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:09:00,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:00,490 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:00,492 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:00,492 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 03:09:00,492 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:09:00,493 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 03:09:00,493 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:00,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:09:00,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:09:00,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:09:00,495 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:09:00,498 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 03:09:00,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:00,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:00,539 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:00,540 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-25 03:09:00,541 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:09:00,541 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-09-25 03:09:00,541 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:00,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 03:09:00,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:09:00,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-25 03:09:00,543 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:09:00,564 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-25 03:09:00,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:00,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:00,625 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:00,626 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 03:09:00,626 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:09:00,627 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-09-25 03:09:00,627 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:00,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 03:09:00,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 03:09:00,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-09-25 03:09:00,628 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:09:00,659 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:09:00,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:00,668 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:00,708 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:00,709 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:09:00,709 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:09:00,710 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-09-25 03:09:00,715 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:00,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 03:09:00,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:09:00,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 03:09:00,717 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:09:00,766 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-25 03:09:00,766 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [17354794] [2020-09-25 03:09:00,767 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 03:09:00,767 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-09-25 03:09:00,768 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [623321781] [2020-09-25 03:09:00,773 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 03:09:00,780 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:09:00,780 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 03:09:00,781 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2020-09-25 03:09:00,781 INFO L87 Difference]: Start difference. First operand 44 states and 52 transitions. Second operand 10 states. [2020-09-25 03:09:01,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:09:01,087 INFO L93 Difference]: Finished difference Result 50 states and 57 transitions. [2020-09-25 03:09:01,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-25 03:09:01,088 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 37 [2020-09-25 03:09:01,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:09:01,092 INFO L225 Difference]: With dead ends: 50 [2020-09-25 03:09:01,092 INFO L226 Difference]: Without dead ends: 43 [2020-09-25 03:09:01,095 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=163, Unknown=0, NotChecked=0, Total=210 [2020-09-25 03:09:01,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2020-09-25 03:09:01,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 41. [2020-09-25 03:09:01,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2020-09-25 03:09:01,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 46 transitions. [2020-09-25 03:09:01,111 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 46 transitions. Word has length 37 [2020-09-25 03:09:01,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:09:01,112 INFO L479 AbstractCegarLoop]: Abstraction has 41 states and 46 transitions. [2020-09-25 03:09:01,112 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 03:09:01,112 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 46 transitions. [2020-09-25 03:09:01,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-09-25 03:09:01,117 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:09:01,117 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 03:09:01,117 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 03:09:01,117 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:09:01,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:09:01,118 INFO L82 PathProgramCache]: Analyzing trace with hash -165736076, now seen corresponding path program 1 times [2020-09-25 03:09:01,118 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:09:01,119 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [865323188] [2020-09-25 03:09:01,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:09:01,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:01,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:01,505 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:01,505 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 63 [2020-09-25 03:09:01,506 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:09:01,506 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 364 [2020-09-25 03:09:01,506 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:01,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 03:09:01,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 03:09:01,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-09-25 03:09:01,507 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:09:01,573 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:09:01,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:01,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:01,576 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:01,577 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 03:09:01,577 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:09:01,577 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 03:09:01,577 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:01,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:09:01,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:09:01,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:09:01,578 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:09:01,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 03:09:01,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:01,592 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:01,708 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:01,708 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-09-25 03:09:01,709 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:09:01,709 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 122 [2020-09-25 03:09:01,709 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:01,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 03:09:01,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 03:09:01,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-09-25 03:09:01,710 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:09:01,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-25 03:09:01,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:01,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:01,811 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:01,811 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-25 03:09:01,811 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:09:01,812 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-25 03:09:01,812 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:01,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 03:09:01,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 03:09:01,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-25 03:09:01,813 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:09:01,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-25 03:09:01,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:01,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:01,845 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:01,845 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-25 03:09:01,846 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:09:01,846 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-25 03:09:01,846 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:01,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 03:09:01,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 03:09:01,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-25 03:09:01,847 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:09:01,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-25 03:09:01,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:01,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:01,878 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:01,879 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:09:01,879 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:09:01,879 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 03:09:01,879 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:01,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 03:09:01,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:09:01,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 03:09:01,880 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:09:01,900 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2020-09-25 03:09:01,900 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [865323188] [2020-09-25 03:09:01,900 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 03:09:01,901 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-09-25 03:09:01,901 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1714218409] [2020-09-25 03:09:01,902 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-25 03:09:01,902 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:09:01,902 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-25 03:09:01,902 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2020-09-25 03:09:01,903 INFO L87 Difference]: Start difference. First operand 41 states and 46 transitions. Second operand 11 states. [2020-09-25 03:09:02,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:09:02,363 INFO L93 Difference]: Finished difference Result 93 states and 110 transitions. [2020-09-25 03:09:02,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-09-25 03:09:02,364 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 48 [2020-09-25 03:09:02,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:09:02,367 INFO L225 Difference]: With dead ends: 93 [2020-09-25 03:09:02,367 INFO L226 Difference]: Without dead ends: 85 [2020-09-25 03:09:02,368 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=103, Invalid=449, Unknown=0, NotChecked=0, Total=552 [2020-09-25 03:09:02,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2020-09-25 03:09:02,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 75. [2020-09-25 03:09:02,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 75 states. [2020-09-25 03:09:02,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 92 transitions. [2020-09-25 03:09:02,385 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 92 transitions. Word has length 48 [2020-09-25 03:09:02,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:09:02,385 INFO L479 AbstractCegarLoop]: Abstraction has 75 states and 92 transitions. [2020-09-25 03:09:02,385 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-25 03:09:02,385 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 92 transitions. [2020-09-25 03:09:02,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2020-09-25 03:09:02,387 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:09:02,388 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 03:09:02,388 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 03:09:02,388 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:09:02,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:09:02,389 INFO L82 PathProgramCache]: Analyzing trace with hash 492898986, now seen corresponding path program 1 times [2020-09-25 03:09:02,389 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:09:02,389 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1487602879] [2020-09-25 03:09:02,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:09:02,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:02,419 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:02,469 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:02,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:03,050 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:04,530 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:04,531 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-09-25 03:09:04,531 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 03:09:04,531 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2125 [2020-09-25 03:09:04,531 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:04,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 03:09:04,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-25 03:09:04,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-25 03:09:04,532 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:09:04,558 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:09:04,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:04,562 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:04,564 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:04,564 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 03:09:04,564 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:09:04,564 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 03:09:04,565 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:04,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:09:04,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:09:04,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:09:04,565 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:09:04,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 03:09:04,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:04,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:04,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:04,832 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:04,832 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-09-25 03:09:04,833 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 03:09:04,833 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 256 [2020-09-25 03:09:04,833 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:04,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 03:09:04,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:09:04,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-25 03:09:04,836 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 03:09:04,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-25 03:09:04,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:04,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:04,880 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:04,880 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-25 03:09:04,880 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:09:04,881 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 03:09:04,881 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:04,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:09:04,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:09:04,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 03:09:04,889 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 7 [2020-09-25 03:09:04,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-25 03:09:04,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:04,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:04,928 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:04,932 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-25 03:09:04,932 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:09:04,932 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-09-25 03:09:04,933 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:04,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 03:09:04,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:09:04,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-25 03:09:04,935 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:09:04,948 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-25 03:09:04,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:04,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:05,004 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:05,005 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 03:09:05,005 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:09:05,006 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-09-25 03:09:05,006 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:05,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 03:09:05,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 03:09:05,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-09-25 03:09:05,007 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:09:05,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:09:05,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:05,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:05,086 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:05,086 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:09:05,087 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:09:05,087 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-09-25 03:09:05,087 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:05,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 03:09:05,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:09:05,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 03:09:05,092 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-25 03:09:05,134 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 9 proven. 8 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-09-25 03:09:05,135 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1487602879] [2020-09-25 03:09:05,135 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 03:09:05,135 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-09-25 03:09:05,135 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [326199665] [2020-09-25 03:09:05,136 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-25 03:09:05,136 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:09:05,137 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-25 03:09:05,137 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2020-09-25 03:09:05,137 INFO L87 Difference]: Start difference. First operand 75 states and 92 transitions. Second operand 11 states. [2020-09-25 03:09:05,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:09:05,457 INFO L93 Difference]: Finished difference Result 107 states and 136 transitions. [2020-09-25 03:09:05,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-25 03:09:05,457 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 56 [2020-09-25 03:09:05,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:09:05,459 INFO L225 Difference]: With dead ends: 107 [2020-09-25 03:09:05,459 INFO L226 Difference]: Without dead ends: 87 [2020-09-25 03:09:05,461 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=272, Unknown=0, NotChecked=0, Total=342 [2020-09-25 03:09:05,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2020-09-25 03:09:05,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 81. [2020-09-25 03:09:05,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 81 states. [2020-09-25 03:09:05,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 108 transitions. [2020-09-25 03:09:05,486 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 108 transitions. Word has length 56 [2020-09-25 03:09:05,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:09:05,486 INFO L479 AbstractCegarLoop]: Abstraction has 81 states and 108 transitions. [2020-09-25 03:09:05,486 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-25 03:09:05,487 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 108 transitions. [2020-09-25 03:09:05,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-09-25 03:09:05,490 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:09:05,494 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 03:09:05,494 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 03:09:05,494 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:09:05,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:09:05,495 INFO L82 PathProgramCache]: Analyzing trace with hash 1500718662, now seen corresponding path program 2 times [2020-09-25 03:09:05,495 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:09:05,495 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1913882133] [2020-09-25 03:09:05,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:09:05,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:05,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:05,567 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:05,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:05,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:05,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:05,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:10,010 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:10,011 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 03:09:10,011 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 03:09:10,011 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4495 [2020-09-25 03:09:10,011 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:10,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 03:09:10,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-25 03:09:10,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-09-25 03:09:10,012 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:09:10,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:09:10,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:10,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:10,049 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:10,049 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 03:09:10,049 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:09:10,049 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 03:09:10,049 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:10,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:09:10,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:09:10,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:09:10,050 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:09:10,052 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 03:09:10,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:10,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:10,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:10,144 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:10,370 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:10,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:10,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:11,679 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:11,679 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-09-25 03:09:11,679 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 03:09:11,680 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1619 [2020-09-25 03:09:11,680 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:11,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 03:09:11,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:09:11,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 56 [2020-09-25 03:09:11,681 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:09:11,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-25 03:09:11,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:11,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:11,717 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:11,717 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-25 03:09:11,717 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:09:11,718 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 03:09:11,718 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:11,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:09:11,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:09:11,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 03:09:11,719 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:09:11,722 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-25 03:09:11,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:11,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:11,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:12,069 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:12,069 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-09-25 03:09:12,069 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 03:09:12,069 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 340 [2020-09-25 03:09:12,070 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:12,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 03:09:12,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:09:12,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-25 03:09:12,071 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:09:12,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-25 03:09:12,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:12,107 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:12,125 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:12,126 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-25 03:09:12,126 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:09:12,126 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-25 03:09:12,126 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:12,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 03:09:12,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:09:12,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-25 03:09:12,128 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:09:12,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-25 03:09:12,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:12,146 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:12,155 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:12,156 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-25 03:09:12,156 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:09:12,156 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 03:09:12,156 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:12,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:09:12,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:09:12,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 03:09:12,157 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:09:12,166 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-09-25 03:09:12,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:12,169 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:12,190 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:12,191 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:09:12,191 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:09:12,191 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-09-25 03:09:12,191 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:12,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 03:09:12,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 03:09:12,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 03:09:12,192 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:09:12,246 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 24 proven. 31 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2020-09-25 03:09:12,247 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1913882133] [2020-09-25 03:09:12,247 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 03:09:12,247 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-09-25 03:09:12,248 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2099517543] [2020-09-25 03:09:12,249 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-25 03:09:12,249 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:09:12,249 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-25 03:09:12,249 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2020-09-25 03:09:12,250 INFO L87 Difference]: Start difference. First operand 81 states and 108 transitions. Second operand 11 states. [2020-09-25 03:09:12,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:09:12,586 INFO L93 Difference]: Finished difference Result 147 states and 216 transitions. [2020-09-25 03:09:12,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-25 03:09:12,586 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 67 [2020-09-25 03:09:12,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:09:12,589 INFO L225 Difference]: With dead ends: 147 [2020-09-25 03:09:12,589 INFO L226 Difference]: Without dead ends: 90 [2020-09-25 03:09:12,596 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=68, Invalid=274, Unknown=0, NotChecked=0, Total=342 [2020-09-25 03:09:12,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2020-09-25 03:09:12,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 75. [2020-09-25 03:09:12,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 75 states. [2020-09-25 03:09:12,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 88 transitions. [2020-09-25 03:09:12,617 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 88 transitions. Word has length 67 [2020-09-25 03:09:12,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:09:12,617 INFO L479 AbstractCegarLoop]: Abstraction has 75 states and 88 transitions. [2020-09-25 03:09:12,617 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-25 03:09:12,617 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 88 transitions. [2020-09-25 03:09:12,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2020-09-25 03:09:12,624 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:09:12,625 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 5, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 03:09:12,625 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 03:09:12,625 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:09:12,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:09:12,627 INFO L82 PathProgramCache]: Analyzing trace with hash 1797530270, now seen corresponding path program 2 times [2020-09-25 03:09:12,628 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:09:12,628 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1447605514] [2020-09-25 03:09:12,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:09:12,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:12,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:12,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:12,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:12,937 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:13,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:13,420 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:13,894 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:17,669 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:17,669 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 142 [2020-09-25 03:09:17,669 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-25 03:09:17,670 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-09-25 03:09:17,670 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:17,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 03:09:17,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-09-25 03:09:17,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 82 [2020-09-25 03:09:17,670 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:09:17,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:09:17,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:17,707 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:17,708 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:17,708 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 03:09:17,708 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:09:17,708 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 03:09:17,708 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:17,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:09:17,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:09:17,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:09:17,709 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:09:17,710 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 03:09:17,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:17,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:17,796 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:17,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:18,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:18,282 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:18,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:18,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:19,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:19,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:22,728 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:22,728 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-09-25 03:09:22,728 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-09-25 03:09:22,728 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-25 03:09:22,728 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:22,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 03:09:22,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-09-25 03:09:22,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 82 [2020-09-25 03:09:22,729 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:09:22,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-25 03:09:22,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:22,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:22,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:23,005 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:23,005 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-09-25 03:09:23,006 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 03:09:23,006 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 253 [2020-09-25 03:09:23,006 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:23,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 03:09:23,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:09:23,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-25 03:09:23,006 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:09:23,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-25 03:09:23,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:23,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:23,045 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:23,045 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-25 03:09:23,046 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:09:23,046 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-25 03:09:23,046 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:23,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 03:09:23,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:09:23,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-25 03:09:23,047 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:09:23,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-25 03:09:23,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:23,066 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:23,073 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:23,074 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-25 03:09:23,074 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:09:23,074 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 03:09:23,075 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:23,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:09:23,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:09:23,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 03:09:23,075 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:09:23,079 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-09-25 03:09:23,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:23,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:23,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:23,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:23,370 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:23,413 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:24,582 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:24,583 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-09-25 03:09:24,583 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 03:09:24,583 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1494 [2020-09-25 03:09:24,583 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:24,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 03:09:24,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 03:09:24,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-09-25 03:09:24,584 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:09:24,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-25 03:09:24,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:24,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:24,623 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:24,623 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-25 03:09:24,623 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:09:24,624 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 03:09:24,624 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:24,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:09:24,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:09:24,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 03:09:24,625 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:09:24,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-25 03:09:24,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:24,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:24,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:24,833 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:24,834 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-09-25 03:09:24,834 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 03:09:24,834 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 201 [2020-09-25 03:09:24,834 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:24,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 03:09:24,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:09:24,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-25 03:09:24,835 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:09:24,894 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-25 03:09:24,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:24,900 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:24,923 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:24,924 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-25 03:09:24,924 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:09:24,924 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-09-25 03:09:24,924 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:24,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 03:09:24,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:09:24,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-25 03:09:24,925 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:09:24,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-25 03:09:24,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:24,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:24,979 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:24,980 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-25 03:09:24,980 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:09:24,980 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 03:09:24,981 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:24,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:09:24,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:09:24,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 03:09:24,981 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:09:24,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-09-25 03:09:24,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:24,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:25,003 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:25,003 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 03:09:25,004 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:09:25,004 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 03:09:25,004 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:25,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:09:25,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-25 03:09:25,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:09:25,005 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:09:25,007 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:09:25,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:25,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:25,012 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:25,012 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:09:25,012 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:09:25,013 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 03:09:25,013 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:25,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:09:25,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:09:25,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:09:25,014 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:09:25,027 INFO L134 CoverageAnalysis]: Checked inductivity of 286 backedges. 108 proven. 104 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2020-09-25 03:09:25,028 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1447605514] [2020-09-25 03:09:25,028 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 03:09:25,028 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-09-25 03:09:25,028 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1199217910] [2020-09-25 03:09:25,029 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-09-25 03:09:25,029 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:09:25,030 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-09-25 03:09:25,030 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2020-09-25 03:09:25,030 INFO L87 Difference]: Start difference. First operand 75 states and 88 transitions. Second operand 13 states. [2020-09-25 03:09:25,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:09:25,423 INFO L93 Difference]: Finished difference Result 146 states and 189 transitions. [2020-09-25 03:09:25,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-25 03:09:25,423 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 113 [2020-09-25 03:09:25,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:09:25,425 INFO L225 Difference]: With dead ends: 146 [2020-09-25 03:09:25,425 INFO L226 Difference]: Without dead ends: 91 [2020-09-25 03:09:25,432 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=135, Invalid=417, Unknown=0, NotChecked=0, Total=552 [2020-09-25 03:09:25,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2020-09-25 03:09:25,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 75. [2020-09-25 03:09:25,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 75 states. [2020-09-25 03:09:25,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 85 transitions. [2020-09-25 03:09:25,451 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 85 transitions. Word has length 113 [2020-09-25 03:09:25,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:09:25,452 INFO L479 AbstractCegarLoop]: Abstraction has 75 states and 85 transitions. [2020-09-25 03:09:25,452 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-09-25 03:09:25,452 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 85 transitions. [2020-09-25 03:09:25,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2020-09-25 03:09:25,453 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:09:25,454 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 03:09:25,454 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 03:09:25,454 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:09:25,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:09:25,454 INFO L82 PathProgramCache]: Analyzing trace with hash -646694506, now seen corresponding path program 3 times [2020-09-25 03:09:25,454 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:09:25,455 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1025678692] [2020-09-25 03:09:25,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:09:25,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:25,500 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:26,515 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:26,515 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-09-25 03:09:26,515 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:09:26,515 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1034 [2020-09-25 03:09:26,516 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:26,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-09-25 03:09:26,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 03:09:26,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 102 [2020-09-25 03:09:26,516 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:09:26,570 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:09:26,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:26,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:26,573 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:26,573 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 03:09:26,573 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:09:26,574 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 03:09:26,574 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:26,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:09:26,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:09:26,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:09:26,575 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:09:26,576 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 03:09:26,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:26,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:27,113 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:27,113 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-09-25 03:09:27,113 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:09:27,113 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 525 [2020-09-25 03:09:27,114 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:27,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-09-25 03:09:27,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 03:09:27,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-09-25 03:09:27,114 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:09:27,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-25 03:09:27,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:27,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:27,309 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:27,309 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-09-25 03:09:27,309 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:09:27,310 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 112 [2020-09-25 03:09:27,310 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:27,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 03:09:27,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 03:09:27,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-09-25 03:09:27,311 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:09:27,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-25 03:09:27,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:27,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:27,351 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:27,351 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-25 03:09:27,352 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:09:27,352 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-25 03:09:27,352 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:27,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 03:09:27,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 03:09:27,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-25 03:09:27,353 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:09:27,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-25 03:09:27,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:27,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:27,384 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:27,384 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-25 03:09:27,385 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:09:27,385 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-25 03:09:27,385 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:27,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 03:09:27,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 03:09:27,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-25 03:09:27,386 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:09:27,391 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-09-25 03:09:27,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:27,402 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:27,498 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:27,499 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-09-25 03:09:27,499 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:09:27,499 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 101 [2020-09-25 03:09:27,499 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:27,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 03:09:27,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 03:09:27,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-09-25 03:09:27,499 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:09:27,576 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-25 03:09:27,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:27,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:27,606 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:27,607 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-25 03:09:27,607 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:09:27,608 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-25 03:09:27,608 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:27,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 03:09:27,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 03:09:27,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-25 03:09:27,609 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:09:27,672 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-25 03:09:27,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:27,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:27,688 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:27,688 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-25 03:09:27,688 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:09:27,689 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 03:09:27,689 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:27,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 03:09:27,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 03:09:27,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-25 03:09:27,689 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:09:27,702 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-09-25 03:09:27,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:27,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:27,740 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:27,740 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 03:09:27,741 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:09:27,741 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-09-25 03:09:27,741 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:27,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 03:09:27,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:09:27,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-09-25 03:09:27,742 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:09:27,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:09:27,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:27,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:27,795 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:27,796 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:09:27,796 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:09:27,796 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 03:09:27,796 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:27,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 03:09:27,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:09:27,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 03:09:27,797 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:09:27,847 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 6 proven. 63 refuted. 0 times theorem prover too weak. 97 trivial. 0 not checked. [2020-09-25 03:09:27,848 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1025678692] [2020-09-25 03:09:27,848 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 03:09:27,848 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2020-09-25 03:09:27,849 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [567786893] [2020-09-25 03:09:27,849 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-09-25 03:09:27,850 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:09:27,850 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-09-25 03:09:27,851 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2020-09-25 03:09:27,851 INFO L87 Difference]: Start difference. First operand 75 states and 85 transitions. Second operand 17 states. [2020-09-25 03:09:28,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:09:28,621 INFO L93 Difference]: Finished difference Result 111 states and 126 transitions. [2020-09-25 03:09:28,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-09-25 03:09:28,621 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 94 [2020-09-25 03:09:28,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:09:28,626 INFO L225 Difference]: With dead ends: 111 [2020-09-25 03:09:28,626 INFO L226 Difference]: Without dead ends: 105 [2020-09-25 03:09:28,628 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 26 SyntacticMatches, 2 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 162 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=187, Invalid=1003, Unknown=0, NotChecked=0, Total=1190 [2020-09-25 03:09:28,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2020-09-25 03:09:28,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 94. [2020-09-25 03:09:28,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 94 states. [2020-09-25 03:09:28,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 109 transitions. [2020-09-25 03:09:28,651 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 109 transitions. Word has length 94 [2020-09-25 03:09:28,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:09:28,652 INFO L479 AbstractCegarLoop]: Abstraction has 94 states and 109 transitions. [2020-09-25 03:09:28,652 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-09-25 03:09:28,652 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 109 transitions. [2020-09-25 03:09:28,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2020-09-25 03:09:28,654 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:09:28,654 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 03:09:28,654 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-25 03:09:28,654 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:09:28,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:09:28,655 INFO L82 PathProgramCache]: Analyzing trace with hash 1860925472, now seen corresponding path program 4 times [2020-09-25 03:09:28,656 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:09:28,657 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1316900494] [2020-09-25 03:09:28,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:09:28,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:28,704 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:28,826 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:28,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:28,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:29,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:33,692 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:33,693 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 129 [2020-09-25 03:09:33,693 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 03:09:33,693 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-09-25 03:09:33,693 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:33,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-25 03:09:33,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-25 03:09:33,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-09-25 03:09:33,694 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:09:33,716 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:09:33,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:33,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:33,719 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:33,719 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 03:09:33,720 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:09:33,720 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 03:09:33,720 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:33,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:09:33,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:09:33,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:09:33,720 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:09:33,721 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 03:09:33,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:33,738 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:33,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:33,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:34,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:38,734 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:38,735 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-09-25 03:09:38,735 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 03:09:38,735 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-09-25 03:09:38,736 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:38,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 03:09:38,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:09:38,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-09-25 03:09:38,737 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:09:38,771 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-25 03:09:38,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:38,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:38,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:39,002 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:39,002 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-09-25 03:09:39,003 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 03:09:39,003 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 225 [2020-09-25 03:09:39,003 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:39,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 03:09:39,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:09:39,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-25 03:09:39,004 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:09:39,044 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-25 03:09:39,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:39,048 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:39,061 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:39,061 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-25 03:09:39,062 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:09:39,062 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 03:09:39,062 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:39,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 03:09:39,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:09:39,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-25 03:09:39,062 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:09:39,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-25 03:09:39,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:39,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:39,086 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:39,086 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-25 03:09:39,087 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:09:39,087 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 03:09:39,087 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:39,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:09:39,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:09:39,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 03:09:39,088 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:09:39,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-09-25 03:09:39,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:39,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:39,119 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:39,119 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-09-25 03:09:39,120 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:09:39,120 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-25 03:09:39,120 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:39,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:09:39,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:09:39,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 32 [2020-09-25 03:09:39,121 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:09:39,125 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-25 03:09:39,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:39,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:39,131 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:39,131 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-25 03:09:39,131 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:09:39,131 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 03:09:39,132 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:39,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:09:39,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:09:39,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:09:39,132 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:09:39,134 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-25 03:09:39,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:39,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:39,140 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:39,140 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-25 03:09:39,140 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:09:39,141 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 03:09:39,141 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:39,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:09:39,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:09:39,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:09:39,142 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:09:39,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-09-25 03:09:39,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:39,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:39,216 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:39,216 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-25 03:09:39,216 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:09:39,217 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-09-25 03:09:39,217 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:39,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 03:09:39,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 03:09:39,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-09-25 03:09:39,217 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:09:39,245 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:09:39,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:39,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:39,278 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:39,278 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 03:09:39,278 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:09:39,278 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-09-25 03:09:39,278 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:39,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 03:09:39,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:09:39,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 03:09:39,279 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:09:39,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:09:39,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:39,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:39,341 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:39,341 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:09:39,342 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:09:39,342 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-25 03:09:39,342 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:39,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 03:09:39,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:09:39,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 03:09:39,343 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:09:39,374 INFO L134 CoverageAnalysis]: Checked inductivity of 178 backedges. 24 proven. 89 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2020-09-25 03:09:39,375 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1316900494] [2020-09-25 03:09:39,375 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 03:09:39,375 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-09-25 03:09:39,375 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2041893760] [2020-09-25 03:09:39,376 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-09-25 03:09:39,376 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:09:39,376 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-09-25 03:09:39,376 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2020-09-25 03:09:39,376 INFO L87 Difference]: Start difference. First operand 94 states and 109 transitions. Second operand 14 states. [2020-09-25 03:09:39,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:09:39,799 INFO L93 Difference]: Finished difference Result 114 states and 133 transitions. [2020-09-25 03:09:39,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-09-25 03:09:39,800 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 102 [2020-09-25 03:09:39,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:09:39,801 INFO L225 Difference]: With dead ends: 114 [2020-09-25 03:09:39,801 INFO L226 Difference]: Without dead ends: 91 [2020-09-25 03:09:39,802 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=115, Invalid=485, Unknown=0, NotChecked=0, Total=600 [2020-09-25 03:09:39,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2020-09-25 03:09:39,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 85. [2020-09-25 03:09:39,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2020-09-25 03:09:39,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 101 transitions. [2020-09-25 03:09:39,813 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 101 transitions. Word has length 102 [2020-09-25 03:09:39,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:09:39,813 INFO L479 AbstractCegarLoop]: Abstraction has 85 states and 101 transitions. [2020-09-25 03:09:39,813 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-09-25 03:09:39,814 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 101 transitions. [2020-09-25 03:09:39,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2020-09-25 03:09:39,815 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:09:39,815 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 6, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 03:09:39,815 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-25 03:09:39,815 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:09:39,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:09:39,816 INFO L82 PathProgramCache]: Analyzing trace with hash 837957098, now seen corresponding path program 5 times [2020-09-25 03:09:39,816 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:09:39,816 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [484331701] [2020-09-25 03:09:39,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:09:39,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:39,866 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:39,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:40,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:40,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:41,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:41,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:41,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:41,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:41,477 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:41,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:44,848 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:44,848 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 165 [2020-09-25 03:09:44,848 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-09-25 03:09:44,848 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-09-25 03:09:44,849 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:44,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 03:09:44,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-09-25 03:09:44,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 107 [2020-09-25 03:09:44,849 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:09:44,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:09:44,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:44,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:44,868 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:44,868 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 03:09:44,869 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:09:44,869 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 03:09:44,869 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:44,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:09:44,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:09:44,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:09:44,870 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:09:44,871 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 03:09:44,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:44,900 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:44,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:45,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:45,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:45,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:45,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:49,891 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:49,892 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 128 [2020-09-25 03:09:49,892 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 03:09:49,892 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-09-25 03:09:49,892 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:49,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 03:09:49,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-09-25 03:09:49,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 97 [2020-09-25 03:09:49,893 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:09:49,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-25 03:09:49,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:49,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:49,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:49,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:50,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking...