/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=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.4 --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-simple/fibo_2calls_20-2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 05:27:09,323 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 05:27:09,327 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 05:27:09,352 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 05:27:09,352 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 05:27:09,353 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 05:27:09,355 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 05:27:09,356 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 05:27:09,358 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 05:27:09,359 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 05:27:09,360 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 05:27:09,361 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 05:27:09,361 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 05:27:09,363 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 05:27:09,364 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 05:27:09,365 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 05:27:09,366 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 05:27:09,367 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 05:27:09,369 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 05:27:09,370 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 05:27:09,372 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 05:27:09,373 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 05:27:09,374 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 05:27:09,375 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 05:27:09,381 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 05:27:09,382 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 05:27:09,382 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 05:27:09,383 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 05:27:09,383 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 05:27:09,384 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 05:27:09,387 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 05:27:09,388 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 05:27:09,388 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 05:27:09,389 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 05:27:09,392 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 05:27:09,392 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 05:27:09,393 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 05:27:09,393 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 05:27:09,393 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 05:27:09,395 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 05:27:09,397 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 05:27:09,398 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 05:27:09,452 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 05:27:09,456 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 05:27:09,457 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 05:27:09,458 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 05:27:09,459 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 05:27:09,459 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 05:27:09,459 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 05:27:09,459 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 05:27:09,459 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 05:27:09,460 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 05:27:09,460 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 05:27:09,460 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 05:27:09,460 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 05:27:09,460 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 05:27:09,462 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 05:27:09,462 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 05:27:09,462 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 05:27:09,463 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 05:27:09,463 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 05:27:09,463 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 05:27:09,463 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 05:27:09,463 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 05:27:09,464 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 05:27:09,464 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 05:27:09,464 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 05:27:09,464 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 05:27:09,464 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 05:27:09,465 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 05:27:09,465 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 05:27:09,465 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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true; [2020-09-25 05:27:09,924 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 05:27:09,939 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 05:27:09,947 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 05:27:09,949 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 05:27:09,950 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 05:27:09,952 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive-simple/fibo_2calls_20-2.c [2020-09-25 05:27:10,029 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1652a9162/e0fff6fed00744d49ccbdbbbd21da729/FLAG3fe889ced [2020-09-25 05:27:10,523 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 05:27:10,523 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/recursive-simple/fibo_2calls_20-2.c [2020-09-25 05:27:10,531 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1652a9162/e0fff6fed00744d49ccbdbbbd21da729/FLAG3fe889ced [2020-09-25 05:27:10,912 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1652a9162/e0fff6fed00744d49ccbdbbbd21da729 [2020-09-25 05:27:10,927 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 05:27:10,934 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 05:27:10,935 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 05:27:10,935 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 05:27:10,940 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 05:27:10,941 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 05:27:10" (1/1) ... [2020-09-25 05:27:10,946 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@697b2ada and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:27:10, skipping insertion in model container [2020-09-25 05:27:10,946 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 05:27:10" (1/1) ... [2020-09-25 05:27:10,956 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 05:27:10,984 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 05:27:11,277 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 05:27:11,282 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 05:27:11,300 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 05:27:11,315 INFO L208 MainTranslator]: Completed translation [2020-09-25 05:27:11,315 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:27:11 WrapperNode [2020-09-25 05:27:11,315 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 05:27:11,316 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 05:27:11,316 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 05:27:11,316 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 05:27:11,330 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:27:11" (1/1) ... [2020-09-25 05:27:11,331 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:27:11" (1/1) ... [2020-09-25 05:27:11,337 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:27:11" (1/1) ... [2020-09-25 05:27:11,337 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:27:11" (1/1) ... [2020-09-25 05:27:11,427 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:27:11" (1/1) ... [2020-09-25 05:27:11,431 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:27:11" (1/1) ... [2020-09-25 05:27:11,432 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:27:11" (1/1) ... [2020-09-25 05:27:11,434 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 05:27:11,434 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 05:27:11,434 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 05:27:11,435 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 05:27:11,436 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:27:11" (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 05:27:11,508 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 05:27:11,508 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 05:27:11,508 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo1 [2020-09-25 05:27:11,509 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo2 [2020-09-25 05:27:11,509 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 05:27:11,509 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 05:27:11,509 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 05:27:11,509 INFO L130 BoogieDeclarations]: Found specification of procedure fibo1 [2020-09-25 05:27:11,509 INFO L130 BoogieDeclarations]: Found specification of procedure fibo2 [2020-09-25 05:27:11,510 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 05:27:11,510 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 05:27:11,510 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 05:27:11,771 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 05:27:11,771 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-25 05:27:11,777 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 05:27:11 BoogieIcfgContainer [2020-09-25 05:27:11,777 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 05:27:11,788 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 05:27:11,788 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 05:27:11,792 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 05:27:11,793 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 05:27:10" (1/3) ... [2020-09-25 05:27:11,804 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bfca7b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 05:27:11, skipping insertion in model container [2020-09-25 05:27:11,804 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:27:11" (2/3) ... [2020-09-25 05:27:11,805 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bfca7b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 05:27:11, skipping insertion in model container [2020-09-25 05:27:11,805 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 05:27:11" (3/3) ... [2020-09-25 05:27:11,809 INFO L109 eAbstractionObserver]: Analyzing ICFG fibo_2calls_20-2.c [2020-09-25 05:27:11,831 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 05:27:11,840 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 05:27:11,860 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 05:27:11,892 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 05:27:11,892 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 05:27:11,893 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 05:27:11,893 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 05:27:11,893 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 05:27:11,893 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 05:27:11,893 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 05:27:11,893 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 05:27:11,913 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states. [2020-09-25 05:27:11,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-09-25 05:27:11,921 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:27:11,922 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 05:27:11,922 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:27:11,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:27:11,929 INFO L82 PathProgramCache]: Analyzing trace with hash -1089710179, now seen corresponding path program 1 times [2020-09-25 05:27:11,938 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:27:11,938 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1620222805] [2020-09-25 05:27:11,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:27:12,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:27:12,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:12,105 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:27:12,105 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 05:27:12,105 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:27:12,105 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-09-25 05:27:12,107 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:27:12,108 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:27:12,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 05:27:12,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 05:27:12,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 05:27:12,108 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 05:27:12,200 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:27:12,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:27:12,206 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:12,210 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:27:12,210 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:27:12,210 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:27:12,210 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 05:27:12,211 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:27:12,212 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:27:12,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:27:12,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:27:12,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:27:12,213 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:27:12,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 05:27:12,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:27:12,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:12,257 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:27:12,258 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:27:12,258 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:27:12,258 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-09-25 05:27:12,258 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:27:12,259 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:27:12,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 05:27:12,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 05:27:12,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 05:27:12,259 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:27:12,304 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 05:27:12,305 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1620222805] [2020-09-25 05:27:12,307 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:27:12,308 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 05:27:12,309 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1793612918] [2020-09-25 05:27:12,314 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 05:27:12,315 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:27:12,328 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 05:27:12,329 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-25 05:27:12,331 INFO L87 Difference]: Start difference. First operand 45 states. Second operand 5 states. [2020-09-25 05:27:12,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:27:12,449 INFO L93 Difference]: Finished difference Result 58 states and 67 transitions. [2020-09-25 05:27:12,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 05:27:12,452 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2020-09-25 05:27:12,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:27:12,469 INFO L225 Difference]: With dead ends: 58 [2020-09-25 05:27:12,469 INFO L226 Difference]: Without dead ends: 42 [2020-09-25 05:27:12,474 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 05:27:12,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2020-09-25 05:27:12,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2020-09-25 05:27:12,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2020-09-25 05:27:12,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 49 transitions. [2020-09-25 05:27:12,544 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 49 transitions. Word has length 16 [2020-09-25 05:27:12,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:27:12,545 INFO L479 AbstractCegarLoop]: Abstraction has 42 states and 49 transitions. [2020-09-25 05:27:12,545 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 05:27:12,545 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 49 transitions. [2020-09-25 05:27:12,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-09-25 05:27:12,548 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:27:12,548 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 05:27:12,548 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 05:27:12,549 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:27:12,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:27:12,549 INFO L82 PathProgramCache]: Analyzing trace with hash -653728005, now seen corresponding path program 1 times [2020-09-25 05:27:12,550 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:27:12,550 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [205228834] [2020-09-25 05:27:12,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:27:12,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:27:12,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:12,715 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:27:12,715 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-09-25 05:27:12,716 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:27:12,716 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 148 [2020-09-25 05:27:12,716 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:27:12,716 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:27:12,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 05:27:12,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 05:27:12,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 05:27:12,718 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:27:12,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:27:12,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:27:12,738 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:12,740 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:27:12,740 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:27:12,740 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:27:12,741 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 05:27:12,741 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:27:12,741 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:27:12,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:27:12,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:27:12,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:27:12,743 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:27:12,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 05:27:12,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:27:12,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:12,777 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:27:12,777 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 05:27:12,777 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:27:12,777 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-09-25 05:27:12,778 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:27:12,778 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:27:12,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 05:27:12,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 05:27:12,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 05:27:12,779 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:27:12,800 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 05:27:12,801 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [205228834] [2020-09-25 05:27:12,801 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:27:12,801 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 05:27:12,802 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1178112632] [2020-09-25 05:27:12,804 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 05:27:12,804 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:27:12,804 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 05:27:12,805 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-25 05:27:12,805 INFO L87 Difference]: Start difference. First operand 42 states and 49 transitions. Second operand 5 states. [2020-09-25 05:27:12,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:27:12,885 INFO L93 Difference]: Finished difference Result 50 states and 58 transitions. [2020-09-25 05:27:12,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 05:27:12,886 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2020-09-25 05:27:12,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:27:12,888 INFO L225 Difference]: With dead ends: 50 [2020-09-25 05:27:12,888 INFO L226 Difference]: Without dead ends: 44 [2020-09-25 05:27:12,889 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 05:27:12,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2020-09-25 05:27:12,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 42. [2020-09-25 05:27:12,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2020-09-25 05:27:12,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 49 transitions. [2020-09-25 05:27:12,900 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 49 transitions. Word has length 17 [2020-09-25 05:27:12,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:27:12,900 INFO L479 AbstractCegarLoop]: Abstraction has 42 states and 49 transitions. [2020-09-25 05:27:12,901 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 05:27:12,901 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 49 transitions. [2020-09-25 05:27:12,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-09-25 05:27:12,903 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:27:12,903 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 05:27:12,904 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 05:27:12,904 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:27:12,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:27:12,904 INFO L82 PathProgramCache]: Analyzing trace with hash -1617834856, now seen corresponding path program 1 times [2020-09-25 05:27:12,905 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:27:12,905 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [684082489] [2020-09-25 05:27:12,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:27:12,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:27:12,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:12,957 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:12,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:13,602 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:27:13,603 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-09-25 05:27:13,603 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 05:27:13,604 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 682 [2020-09-25 05:27:13,605 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:27:13,606 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:27:13,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 05:27:13,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 05:27:13,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 05:27:13,607 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 05:27:13,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:27:13,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:27:13,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:13,641 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:27:13,641 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:27:13,643 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:27:13,643 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 05:27:13,643 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:27:13,644 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:27:13,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:27:13,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:27:13,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:27:13,645 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:27:13,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 05:27:13,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:27:13,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:13,696 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:13,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:13,962 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:27:13,963 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 05:27:13,963 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 05:27:13,963 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 299 [2020-09-25 05:27:13,963 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:27:13,964 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:27:13,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 05:27:13,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 05:27:13,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 05:27:13,965 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:27:13,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 05:27:13,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:27:14,001 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:14,010 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:27:14,011 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:27:14,011 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:27:14,011 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 05:27:14,012 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:27:14,012 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:27:14,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 05:27:14,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:27:14,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 05:27:14,014 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:27:14,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 05:27:14,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:27:14,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:14,058 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:27:14,061 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:27:14,062 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:27:14,062 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 05:27:14,062 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:27:14,062 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:27:14,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:27:14,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:27:14,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 05:27:14,063 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:27:14,070 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-25 05:27:14,071 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [684082489] [2020-09-25 05:27:14,071 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 05:27:14,071 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-25 05:27:14,072 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1106693260] [2020-09-25 05:27:14,073 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 05:27:14,074 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:27:14,082 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 05:27:14,083 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-25 05:27:14,083 INFO L87 Difference]: Start difference. First operand 42 states and 49 transitions. Second operand 7 states. [2020-09-25 05:27:14,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:27:14,269 INFO L93 Difference]: Finished difference Result 69 states and 87 transitions. [2020-09-25 05:27:14,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-25 05:27:14,270 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 33 [2020-09-25 05:27:14,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:27:14,273 INFO L225 Difference]: With dead ends: 69 [2020-09-25 05:27:14,273 INFO L226 Difference]: Without dead ends: 63 [2020-09-25 05:27:14,274 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-09-25 05:27:14,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2020-09-25 05:27:14,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 61. [2020-09-25 05:27:14,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2020-09-25 05:27:14,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 76 transitions. [2020-09-25 05:27:14,288 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 76 transitions. Word has length 33 [2020-09-25 05:27:14,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:27:14,289 INFO L479 AbstractCegarLoop]: Abstraction has 61 states and 76 transitions. [2020-09-25 05:27:14,289 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 05:27:14,289 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 76 transitions. [2020-09-25 05:27:14,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-09-25 05:27:14,292 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:27:14,292 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] [2020-09-25 05:27:14,292 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 05:27:14,292 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:27:14,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:27:14,293 INFO L82 PathProgramCache]: Analyzing trace with hash 887160861, now seen corresponding path program 1 times [2020-09-25 05:27:14,293 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:27:14,293 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1337983687] [2020-09-25 05:27:14,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:27:14,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:27:14,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:14,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:14,682 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:27:14,683 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-09-25 05:27:14,683 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 05:27:14,683 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 381 [2020-09-25 05:27:14,683 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:27:14,684 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:27:14,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 05:27:14,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 05:27:14,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-25 05:27:14,685 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:27:14,697 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:27:14,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:27:14,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:14,700 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:27:14,700 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:27:14,700 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:27:14,701 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 05:27:14,701 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:27:14,701 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:27:14,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:27:14,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:27:14,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:27:14,703 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:27:14,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 05:27:14,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:27:14,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:14,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:14,968 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:27:14,968 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-25 05:27:14,969 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 05:27:14,969 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 254 [2020-09-25 05:27:14,969 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:27:14,969 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:27:14,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 05:27:14,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 05:27:14,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-25 05:27:14,970 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:27:14,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 05:27:14,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:27:14,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:15,004 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:27:15,004 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 05:27:15,004 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:27:15,005 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 05:27:15,005 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:27:15,005 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:27:15,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:27:15,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:27:15,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 05:27:15,006 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:27:15,009 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 05:27:15,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:27:15,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:15,018 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:27:15,018 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:27:15,019 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:27:15,019 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 05:27:15,019 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:27:15,019 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:27:15,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 05:27:15,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:27:15,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 05:27:15,020 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:27:15,041 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-25 05:27:15,042 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1337983687] [2020-09-25 05:27:15,042 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:27:15,042 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 05:27:15,043 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1133139308] [2020-09-25 05:27:15,043 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 05:27:15,043 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:27:15,044 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 05:27:15,044 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-25 05:27:15,044 INFO L87 Difference]: Start difference. First operand 61 states and 76 transitions. Second operand 7 states. [2020-09-25 05:27:15,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:27:15,184 INFO L93 Difference]: Finished difference Result 73 states and 91 transitions. [2020-09-25 05:27:15,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-25 05:27:15,185 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 34 [2020-09-25 05:27:15,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:27:15,187 INFO L225 Difference]: With dead ends: 73 [2020-09-25 05:27:15,187 INFO L226 Difference]: Without dead ends: 67 [2020-09-25 05:27:15,188 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-09-25 05:27:15,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2020-09-25 05:27:15,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 61. [2020-09-25 05:27:15,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2020-09-25 05:27:15,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 76 transitions. [2020-09-25 05:27:15,199 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 76 transitions. Word has length 34 [2020-09-25 05:27:15,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:27:15,199 INFO L479 AbstractCegarLoop]: Abstraction has 61 states and 76 transitions. [2020-09-25 05:27:15,200 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 05:27:15,200 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 76 transitions. [2020-09-25 05:27:15,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-09-25 05:27:15,202 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:27:15,202 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 05:27:15,203 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 05:27:15,203 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:27:15,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:27:15,203 INFO L82 PathProgramCache]: Analyzing trace with hash 186293384, now seen corresponding path program 1 times [2020-09-25 05:27:15,203 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:27:15,204 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1128887066] [2020-09-25 05:27:15,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:27:15,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:27:15,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:15,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:15,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:15,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:15,644 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:27:15,644 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-09-25 05:27:15,644 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 05:27:15,644 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 433 [2020-09-25 05:27:15,645 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:27:15,645 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:27:15,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 05:27:15,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 05:27:15,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-25 05:27:15,646 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:27:15,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:27:15,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:27:15,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:15,661 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:27:15,661 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:27:15,661 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:27:15,662 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 05:27:15,662 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:27:15,662 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:27:15,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:27:15,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:27:15,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:27:15,664 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:27:15,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 05:27:15,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:27:15,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:15,689 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:15,790 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:15,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:16,034 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:27:16,034 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-25 05:27:16,034 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 05:27:16,034 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 362 [2020-09-25 05:27:16,035 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:27:16,035 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:27:16,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 05:27:16,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 05:27:16,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-25 05:27:16,036 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:27:16,060 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 05:27:16,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:27:16,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:16,082 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:27:16,082 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 05:27:16,083 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:27:16,083 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-25 05:27:16,083 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:27:16,084 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:27:16,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 05:27:16,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:27:16,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 05:27:16,085 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:27:16,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 05:27:16,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:27:16,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:16,122 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:27:16,123 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 05:27:16,123 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:27:16,123 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 05:27:16,124 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:27:16,124 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:27:16,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:27:16,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:27:16,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 05:27:16,125 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:27:16,129 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-25 05:27:16,130 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1128887066] [2020-09-25 05:27:16,130 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 05:27:16,130 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-25 05:27:16,131 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1280204882] [2020-09-25 05:27:16,131 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 05:27:16,131 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:27:16,132 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 05:27:16,132 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-25 05:27:16,132 INFO L87 Difference]: Start difference. First operand 61 states and 76 transitions. Second operand 7 states. [2020-09-25 05:27:16,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:27:16,258 INFO L93 Difference]: Finished difference Result 134 states and 187 transitions. [2020-09-25 05:27:16,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 05:27:16,259 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 35 [2020-09-25 05:27:16,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:27:16,261 INFO L225 Difference]: With dead ends: 134 [2020-09-25 05:27:16,261 INFO L226 Difference]: Without dead ends: 79 [2020-09-25 05:27:16,263 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-09-25 05:27:16,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2020-09-25 05:27:16,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 67. [2020-09-25 05:27:16,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 67 states. [2020-09-25 05:27:16,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 85 transitions. [2020-09-25 05:27:16,276 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 85 transitions. Word has length 35 [2020-09-25 05:27:16,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:27:16,276 INFO L479 AbstractCegarLoop]: Abstraction has 67 states and 85 transitions. [2020-09-25 05:27:16,276 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 05:27:16,277 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 85 transitions. [2020-09-25 05:27:16,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-09-25 05:27:16,279 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:27:16,280 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 05:27:16,280 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 05:27:16,280 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:27:16,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:27:16,281 INFO L82 PathProgramCache]: Analyzing trace with hash 758565477, now seen corresponding path program 1 times [2020-09-25 05:27:16,281 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:27:16,281 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1531489294] [2020-09-25 05:27:16,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:27:16,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:27:16,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:16,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:16,345 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:16,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:16,465 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:16,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:16,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:21,289 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:27:21,289 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 68 [2020-09-25 05:27:21,290 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-25 05:27:21,290 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-09-25 05:27:21,291 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:27:21,291 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:27:21,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 05:27:21,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 05:27:21,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-09-25 05:27:21,292 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:27:21,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:27:21,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:27:21,310 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:21,311 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:27:21,311 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:27:21,312 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:27:21,312 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 05:27:21,312 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:27:21,312 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:27:21,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:27:21,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:27:21,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:27:21,314 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:27:21,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 05:27:21,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:27:21,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:21,344 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:21,366 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:21,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:21,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:21,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:22,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:24,073 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:27:24,073 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-09-25 05:27:24,073 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-25 05:27:24,074 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2752 [2020-09-25 05:27:24,074 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:27:24,074 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:27:24,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 05:27:24,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 05:27:24,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-09-25 05:27:24,075 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:27:24,099 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 05:27:24,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:27:24,106 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:24,129 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:24,166 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:27:24,166 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 05:27:24,166 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 05:27:24,167 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-09-25 05:27:24,167 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:27:24,167 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:27:24,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:27:24,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:27:24,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 05:27:24,168 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:27:24,172 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 05:27:24,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:27:24,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:24,177 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:27:24,178 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:27:24,178 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:27:24,178 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 05:27:24,178 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:27:24,179 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:27:24,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:27:24,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:27:24,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:27:24,180 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:27:24,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 05:27:24,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:27:24,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:24,186 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:27:24,186 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:27:24,186 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:27:24,187 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 05:27:24,187 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:27:24,187 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:27:24,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:27:24,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:27:24,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:27:24,188 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:27:24,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-09-25 05:27:24,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:27:24,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:24,210 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:27:24,210 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 05:27:24,211 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:27:24,211 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-25 05:27:24,211 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:27:24,211 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:27:24,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 05:27:24,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:27:24,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 05:27:24,212 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:27:24,240 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-09-25 05:27:24,240 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1531489294] [2020-09-25 05:27:24,241 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 05:27:24,241 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-25 05:27:24,241 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [193342392] [2020-09-25 05:27:24,242 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 05:27:24,242 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:27:24,242 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 05:27:24,242 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-25 05:27:24,243 INFO L87 Difference]: Start difference. First operand 67 states and 85 transitions. Second operand 7 states. [2020-09-25 05:27:24,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:27:24,351 INFO L93 Difference]: Finished difference Result 81 states and 102 transitions. [2020-09-25 05:27:24,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 05:27:24,351 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 51 [2020-09-25 05:27:24,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:27:24,353 INFO L225 Difference]: With dead ends: 81 [2020-09-25 05:27:24,353 INFO L226 Difference]: Without dead ends: 75 [2020-09-25 05:27:24,354 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-09-25 05:27:24,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2020-09-25 05:27:24,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 67. [2020-09-25 05:27:24,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 67 states. [2020-09-25 05:27:24,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 85 transitions. [2020-09-25 05:27:24,365 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 85 transitions. Word has length 51 [2020-09-25 05:27:24,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:27:24,365 INFO L479 AbstractCegarLoop]: Abstraction has 67 states and 85 transitions. [2020-09-25 05:27:24,365 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 05:27:24,366 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 85 transitions. [2020-09-25 05:27:24,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-09-25 05:27:24,368 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:27:24,368 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 05:27:24,369 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 05:27:24,369 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:27:24,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:27:24,369 INFO L82 PathProgramCache]: Analyzing trace with hash 1879014210, now seen corresponding path program 1 times [2020-09-25 05:27:24,370 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:27:24,370 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [980031267] [2020-09-25 05:27:24,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:27:24,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:27:24,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:24,394 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:24,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:24,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:24,831 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:24,847 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:24,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:25,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:25,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:25,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:29,391 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:27:29,391 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-09-25 05:27:29,391 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-09-25 05:27:29,392 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5013 [2020-09-25 05:27:29,392 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:27:29,392 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:27:29,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 05:27:29,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-09-25 05:27:29,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 05:27:29,393 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:27:29,402 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:27:29,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:27:29,404 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:29,405 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:27:29,405 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:27:29,406 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:27:29,406 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 05:27:29,406 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:27:29,406 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:27:29,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:27:29,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:27:29,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:27:29,407 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:27:29,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 05:27:29,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:27:29,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:29,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:29,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:29,476 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:29,548 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:29,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:30,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:33,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:33,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:34,414 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:27:34,415 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-09-25 05:27:34,415 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-09-25 05:27:34,415 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-25 05:27:34,415 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:27:34,416 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:27:34,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 05:27:34,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-09-25 05:27:34,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 05:27:34,416 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:27:34,422 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 05:27:34,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:27:34,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:34,457 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:27:34,458 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 05:27:34,458 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:27:34,458 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-09-25 05:27:34,458 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:27:34,458 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:27:34,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 05:27:34,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-09-25 05:27:34,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 05:27:34,459 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:27:34,493 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 05:27:34,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:27:34,497 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:34,501 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:27:34,501 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:27:34,501 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:27:34,501 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 05:27:34,502 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:27:34,502 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:27:34,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 05:27:34,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 05:27:34,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 05:27:34,503 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:27:34,522 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 05:27:34,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:27:34,525 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:34,528 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:27:34,528 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:27:34,529 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:27:34,529 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 05:27:34,529 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:27:34,529 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:27:34,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:27:34,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:27:34,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:27:34,530 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:27:34,532 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-09-25 05:27:34,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:27:34,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:34,544 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:34,587 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:27:34,587 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 05:27:34,587 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 05:27:34,587 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-09-25 05:27:34,588 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:27:34,588 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:27:34,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:27:34,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-09-25 05:27:34,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:27:34,589 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:27:34,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 05:27:34,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:27:34,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:34,598 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:27:34,598 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:27:34,598 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:27:34,598 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 05:27:34,599 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:27:34,599 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:27:34,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:27:34,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:27:34,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:27:34,600 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:27:34,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 05:27:34,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:27:34,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:34,607 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:27:34,608 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:27:34,608 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:27:34,608 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 05:27:34,608 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:27:34,609 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:27:34,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:27:34,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:27:34,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:27:34,610 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:27:34,619 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 9 proven. 22 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2020-09-25 05:27:34,620 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [980031267] [2020-09-25 05:27:34,620 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 05:27:34,620 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-09-25 05:27:34,620 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [495525856] [2020-09-25 05:27:34,621 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 05:27:34,621 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:27:34,621 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 05:27:34,622 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-09-25 05:27:34,622 INFO L87 Difference]: Start difference. First operand 67 states and 85 transitions. Second operand 6 states. [2020-09-25 05:27:34,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:27:34,695 INFO L93 Difference]: Finished difference Result 132 states and 183 transitions. [2020-09-25 05:27:34,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 05:27:34,696 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 67 [2020-09-25 05:27:34,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:27:34,697 INFO L225 Difference]: With dead ends: 132 [2020-09-25 05:27:34,698 INFO L226 Difference]: Without dead ends: 71 [2020-09-25 05:27:34,700 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-09-25 05:27:34,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2020-09-25 05:27:34,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 69. [2020-09-25 05:27:34,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2020-09-25 05:27:34,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 88 transitions. [2020-09-25 05:27:34,710 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 88 transitions. Word has length 67 [2020-09-25 05:27:34,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:27:34,710 INFO L479 AbstractCegarLoop]: Abstraction has 69 states and 88 transitions. [2020-09-25 05:27:34,711 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 05:27:34,711 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 88 transitions. [2020-09-25 05:27:34,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-09-25 05:27:34,713 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:27:34,713 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 05:27:34,714 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-25 05:27:34,714 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:27:34,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:27:34,714 INFO L82 PathProgramCache]: Analyzing trace with hash -387134248, now seen corresponding path program 1 times [2020-09-25 05:27:34,714 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:27:34,715 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1386857337] [2020-09-25 05:27:34,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:27:34,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:27:34,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:34,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:34,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:34,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:34,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:34,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:35,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:36,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:37,048 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:37,579 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:39,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:39,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:39,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:39,726 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:27:39,726 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 90 [2020-09-25 05:27:39,726 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 13 [2020-09-25 05:27:39,726 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-09-25 05:27:39,727 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:27:39,727 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:27:39,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 05:27:39,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 05:27:39,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-09-25 05:27:39,728 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:27:39,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:27:39,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:27:39,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:39,742 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:27:39,743 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:27:39,743 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:27:39,743 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 05:27:39,743 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:27:39,744 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:27:39,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:27:39,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:27:39,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:27:39,744 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:27:39,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 05:27:39,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:27:39,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:39,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:39,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:39,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:39,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:39,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:39,935 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:42,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:42,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:44,754 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:27:44,755 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-09-25 05:27:44,755 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-09-25 05:27:44,755 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-25 05:27:44,755 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:27:44,756 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:27:44,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 05:27:44,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 05:27:44,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-25 05:27:44,756 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:27:44,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 05:27:44,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:27:44,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:44,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:44,936 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:27:44,936 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-25 05:27:44,937 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 05:27:44,937 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 164 [2020-09-25 05:27:44,937 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:27:44,937 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:27:44,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 05:27:44,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:27:44,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-25 05:27:44,938 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:27:44,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 05:27:44,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:27:44,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:44,973 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:27:44,973 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 05:27:44,973 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:27:44,974 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 05:27:44,974 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:27:44,974 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:27:44,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:27:44,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:27:44,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 05:27:44,975 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:27:44,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 05:27:44,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:27:44,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:44,985 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:27:44,985 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:27:44,986 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:27:44,986 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 05:27:44,986 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:27:44,986 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:27:44,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 05:27:44,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:27:44,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 05:27:44,987 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:27:45,012 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-25 05:27:45,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:27:45,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:45,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:45,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:45,230 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:27:45,230 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-25 05:27:45,230 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 05:27:45,231 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 213 [2020-09-25 05:27:45,231 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:27:45,231 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:27:45,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 05:27:45,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 05:27:45,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-25 05:27:45,232 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:27:45,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 05:27:45,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:27:45,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:45,270 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:45,297 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:27:45,298 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 05:27:45,298 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 05:27:45,298 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-09-25 05:27:45,298 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:27:45,299 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:27:45,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 05:27:45,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:27:45,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 05:27:45,299 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:27:45,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 05:27:45,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:27:45,331 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:45,337 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:27:45,337 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:27:45,337 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:27:45,337 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 05:27:45,338 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:27:45,338 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:27:45,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:27:45,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:27:45,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 05:27:45,339 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:27:45,349 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 19 proven. 21 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2020-09-25 05:27:45,350 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1386857337] [2020-09-25 05:27:45,350 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 05:27:45,350 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-09-25 05:27:45,350 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1408747088] [2020-09-25 05:27:45,351 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-25 05:27:45,351 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:27:45,351 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-25 05:27:45,351 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2020-09-25 05:27:45,352 INFO L87 Difference]: Start difference. First operand 69 states and 88 transitions. Second operand 12 states. [2020-09-25 05:27:45,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:27:45,725 INFO L93 Difference]: Finished difference Result 158 states and 225 transitions. [2020-09-25 05:27:45,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-25 05:27:45,725 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 69 [2020-09-25 05:27:45,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:27:45,728 INFO L225 Difference]: With dead ends: 158 [2020-09-25 05:27:45,728 INFO L226 Difference]: Without dead ends: 81 [2020-09-25 05:27:45,730 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=65, Invalid=277, Unknown=0, NotChecked=0, Total=342 [2020-09-25 05:27:45,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2020-09-25 05:27:45,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 75. [2020-09-25 05:27:45,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 75 states. [2020-09-25 05:27:45,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 91 transitions. [2020-09-25 05:27:45,751 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 91 transitions. Word has length 69 [2020-09-25 05:27:45,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:27:45,751 INFO L479 AbstractCegarLoop]: Abstraction has 75 states and 91 transitions. [2020-09-25 05:27:45,751 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-09-25 05:27:45,751 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 91 transitions. [2020-09-25 05:27:45,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2020-09-25 05:27:45,752 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:27:45,753 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 05:27:45,756 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-25 05:27:45,756 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:27:45,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:27:45,756 INFO L82 PathProgramCache]: Analyzing trace with hash 1208671938, now seen corresponding path program 1 times [2020-09-25 05:27:45,757 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:27:45,757 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2099667157] [2020-09-25 05:27:45,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:27:45,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:27:45,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:45,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:45,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:45,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:45,939 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:45,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:46,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:46,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:48,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:48,060 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:48,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:48,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:48,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:50,768 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:27:50,768 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-09-25 05:27:50,768 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 13 [2020-09-25 05:27:50,768 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-09-25 05:27:50,769 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:27:50,769 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:27:50,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 05:27:50,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 05:27:50,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-09-25 05:27:50,770 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:27:50,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:27:50,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:27:50,788 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:50,788 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:27:50,789 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:27:50,789 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:27:50,789 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 05:27:50,789 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:27:50,789 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:27:50,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:27:50,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:27:50,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:27:50,790 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:27:50,792 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 05:27:50,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:27:50,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:50,815 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:50,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:50,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:50,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:51,037 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:51,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:51,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:51,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:51,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:52,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:55,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:55,799 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:27:55,799 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-09-25 05:27:55,799 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 12 [2020-09-25 05:27:55,799 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-25 05:27:55,799 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:27:55,800 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:27:55,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 05:27:55,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 05:27:55,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-25 05:27:55,800 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:27:55,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 05:27:55,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:27:55,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:55,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:55,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:56,051 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:27:56,051 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-25 05:27:56,051 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 05:27:56,051 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 227 [2020-09-25 05:27:56,052 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:27:56,052 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:27:56,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 05:27:56,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:27:56,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-25 05:27:56,052 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:27:56,079 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 05:27:56,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:27:56,083 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:56,096 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:27:56,096 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 05:27:56,097 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:27:56,097 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 05:27:56,097 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:27:56,097 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:27:56,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 05:27:56,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:27:56,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 05:27:56,098 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:27:56,120 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 05:27:56,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:27:56,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:56,129 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:27:56,129 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 05:27:56,130 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:27:56,130 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 05:27:56,130 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:27:56,130 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:27:56,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:27:56,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:27:56,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 05:27:56,131 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:27:56,134 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-09-25 05:27:56,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:27:56,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:56,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:56,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:56,235 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:27:56,235 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-25 05:27:56,235 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 05:27:56,236 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 98 [2020-09-25 05:27:56,236 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:27:56,236 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:27:56,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:27:56,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:27:56,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-25 05:27:56,237 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:27:56,241 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 05:27:56,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:27:56,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:56,246 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:27:56,246 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 05:27:56,246 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:27:56,247 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 05:27:56,247 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:27:56,247 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:27:56,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:27:56,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:27:56,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:27:56,248 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:27:56,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 05:27:56,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:27:56,251 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:56,254 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:27:56,255 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 05:27:56,255 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:27:56,255 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 05:27:56,255 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:27:56,256 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:27:56,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:27:56,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:27:56,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:27:56,256 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:27:56,270 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 6 proven. 34 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2020-09-25 05:27:56,270 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2099667157] [2020-09-25 05:27:56,271 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 05:27:56,271 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-09-25 05:27:56,271 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [212622428] [2020-09-25 05:27:56,272 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 05:27:56,272 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:27:56,272 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 05:27:56,272 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-25 05:27:56,273 INFO L87 Difference]: Start difference. First operand 75 states and 91 transitions. Second operand 8 states. [2020-09-25 05:27:56,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:27:56,482 INFO L93 Difference]: Finished difference Result 185 states and 261 transitions. [2020-09-25 05:27:56,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-25 05:27:56,482 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 71 [2020-09-25 05:27:56,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:27:56,485 INFO L225 Difference]: With dead ends: 185 [2020-09-25 05:27:56,485 INFO L226 Difference]: Without dead ends: 118 [2020-09-25 05:27:56,487 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2020-09-25 05:27:56,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2020-09-25 05:27:56,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 109. [2020-09-25 05:27:56,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2020-09-25 05:27:56,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 147 transitions. [2020-09-25 05:27:56,500 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 147 transitions. Word has length 71 [2020-09-25 05:27:56,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:27:56,501 INFO L479 AbstractCegarLoop]: Abstraction has 109 states and 147 transitions. [2020-09-25 05:27:56,501 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 05:27:56,501 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 147 transitions. [2020-09-25 05:27:56,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2020-09-25 05:27:56,503 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:27:56,503 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 05:27:56,504 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-25 05:27:56,504 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:27:56,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:27:56,504 INFO L82 PathProgramCache]: Analyzing trace with hash -594280133, now seen corresponding path program 1 times [2020-09-25 05:27:56,504 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:27:56,505 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1841893929] [2020-09-25 05:27:56,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:27:56,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:27:56,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:56,541 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:56,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:56,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:56,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:56,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:58,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:58,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:27:58,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:28:00,229 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:28:00,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:28:00,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:28:00,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:28:01,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:28:01,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:28:01,520 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:28:01,520 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-09-25 05:28:01,520 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 15 [2020-09-25 05:28:01,520 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-09-25 05:28:01,521 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:28:01,521 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:28:01,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 05:28:01,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 28 [2020-09-25 05:28:01,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 05:28:01,522 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:28:01,533 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:28:01,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:28:01,534 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:28:01,535 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:28:01,535 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:28:01,535 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:28:01,536 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 05:28:01,536 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:28:01,536 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:28:01,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:28:01,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:28:01,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:28:01,537 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:28:01,538 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 05:28:01,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:28:01,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:28:01,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:28:01,592 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:28:01,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:28:01,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:28:01,947 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:28:02,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:28:02,579 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:28:02,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking...