/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=1.0 --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_10-1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 08:53:11,932 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 08:53:11,935 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 08:53:11,962 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 08:53:11,962 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 08:53:11,964 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 08:53:11,965 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 08:53:11,967 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 08:53:11,971 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 08:53:11,972 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 08:53:11,973 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 08:53:11,974 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 08:53:11,975 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 08:53:11,976 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 08:53:11,981 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 08:53:11,982 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 08:53:11,984 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 08:53:11,986 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 08:53:11,988 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 08:53:11,991 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 08:53:11,994 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 08:53:11,996 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 08:53:11,998 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 08:53:11,999 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 08:53:12,005 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 08:53:12,005 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 08:53:12,005 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 08:53:12,009 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 08:53:12,010 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 08:53:12,011 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 08:53:12,012 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 08:53:12,013 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 08:53:12,014 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 08:53:12,015 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 08:53:12,025 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 08:53:12,025 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 08:53:12,026 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 08:53:12,027 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 08:53:12,027 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 08:53:12,031 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 08:53:12,032 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 08:53:12,035 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 08:53:12,084 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 08:53:12,084 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 08:53:12,086 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 08:53:12,087 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 08:53:12,087 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 08:53:12,087 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 08:53:12,088 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 08:53:12,088 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 08:53:12,088 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 08:53:12,088 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 08:53:12,089 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 08:53:12,090 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 08:53:12,090 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 08:53:12,090 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 08:53:12,092 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 08:53:12,092 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 08:53:12,092 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 08:53:12,092 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 08:53:12,092 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 08:53:12,093 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 08:53:12,093 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 08:53:12,093 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 08:53:12,093 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 08:53:12,094 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 08:53:12,094 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 08:53:12,094 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 08:53:12,094 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 08:53:12,094 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 08:53:12,095 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 08:53:12,095 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=1.0;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=1.0;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=1.0;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=1.0;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=1.0;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=1.0;log-additional-information=true; [2020-09-25 08:53:12,546 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 08:53:12,567 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 08:53:12,571 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 08:53:12,573 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 08:53:12,573 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 08:53:12,574 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive-simple/fibo_10-1.c [2020-09-25 08:53:12,672 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f0f1206fa/e8bfa97b1fb645d4b6e4215a5cfa9e8b/FLAG528e126cf [2020-09-25 08:53:13,226 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 08:53:13,227 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/recursive-simple/fibo_10-1.c [2020-09-25 08:53:13,236 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f0f1206fa/e8bfa97b1fb645d4b6e4215a5cfa9e8b/FLAG528e126cf [2020-09-25 08:53:13,568 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f0f1206fa/e8bfa97b1fb645d4b6e4215a5cfa9e8b [2020-09-25 08:53:13,583 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 08:53:13,589 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 08:53:13,591 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 08:53:13,591 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 08:53:13,595 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 08:53:13,596 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 08:53:13" (1/1) ... [2020-09-25 08:53:13,601 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d4fe80c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:53:13, skipping insertion in model container [2020-09-25 08:53:13,601 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 08:53:13" (1/1) ... [2020-09-25 08:53:13,610 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 08:53:13,635 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 08:53:13,838 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 08:53:13,844 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 08:53:13,863 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 08:53:13,882 INFO L208 MainTranslator]: Completed translation [2020-09-25 08:53:13,882 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:53:13 WrapperNode [2020-09-25 08:53:13,883 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 08:53:13,883 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 08:53:13,884 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 08:53:13,884 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 08:53:13,898 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:53:13" (1/1) ... [2020-09-25 08:53:13,898 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:53:13" (1/1) ... [2020-09-25 08:53:13,904 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:53:13" (1/1) ... [2020-09-25 08:53:13,904 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:53:13" (1/1) ... [2020-09-25 08:53:13,909 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:53:13" (1/1) ... [2020-09-25 08:53:13,912 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:53:13" (1/1) ... [2020-09-25 08:53:13,913 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:53:13" (1/1) ... [2020-09-25 08:53:13,914 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 08:53:13,915 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 08:53:13,915 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 08:53:13,915 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 08:53:13,916 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:53:13" (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 08:53:14,083 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 08:53:14,084 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 08:53:14,084 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo [2020-09-25 08:53:14,084 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 08:53:14,084 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 08:53:14,085 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 08:53:14,085 INFO L130 BoogieDeclarations]: Found specification of procedure fibo [2020-09-25 08:53:14,085 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 08:53:14,085 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 08:53:14,085 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 08:53:14,287 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 08:53:14,287 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-25 08:53:14,293 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 08:53:14 BoogieIcfgContainer [2020-09-25 08:53:14,293 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 08:53:14,294 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 08:53:14,295 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 08:53:14,299 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 08:53:14,299 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 08:53:13" (1/3) ... [2020-09-25 08:53:14,300 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5edbb5bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 08:53:14, skipping insertion in model container [2020-09-25 08:53:14,300 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:53:13" (2/3) ... [2020-09-25 08:53:14,301 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5edbb5bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 08:53:14, skipping insertion in model container [2020-09-25 08:53:14,301 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 08:53:14" (3/3) ... [2020-09-25 08:53:14,303 INFO L109 eAbstractionObserver]: Analyzing ICFG fibo_10-1.c [2020-09-25 08:53:14,317 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 08:53:14,329 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 08:53:14,358 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 08:53:14,395 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 08:53:14,395 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 08:53:14,395 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 08:53:14,396 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 08:53:14,396 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 08:53:14,396 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 08:53:14,396 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 08:53:14,396 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 08:53:14,423 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states. [2020-09-25 08:53:14,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-09-25 08:53:14,432 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:53:14,434 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 08:53:14,434 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:53:14,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:53:14,444 INFO L82 PathProgramCache]: Analyzing trace with hash -1756383024, now seen corresponding path program 1 times [2020-09-25 08:53:14,458 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:53:14,459 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [330726263] [2020-09-25 08:53:14,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:53:14,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:53:14,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:14,641 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:14,777 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:53:14,777 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 08:53:14,777 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 08:53:14,778 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 200 [2020-09-25 08:53:14,781 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:53:14,782 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:53:14,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 08:53:14,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-09-25 08:53:14,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 08:53:14,783 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 08:53:14,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:53:14,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:53:14,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:14,888 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:53:14,889 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:53:14,889 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:53:14,889 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 08:53:14,890 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:53:14,890 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:53:14,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:53:14,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:53:14,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:53:14,897 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 7 [2020-09-25 08:53:14,902 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 08:53:14,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:53:14,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:14,939 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:53:14,939 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:53:14,940 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:53:14,942 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-09-25 08:53:14,942 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:53:14,943 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:53:14,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 08:53:14,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:53:14,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 08:53:14,944 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:53:14,967 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 08:53:14,968 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [330726263] [2020-09-25 08:53:14,971 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:53:14,971 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 08:53:14,972 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2034493685] [2020-09-25 08:53:14,978 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 08:53:14,979 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:53:14,994 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 08:53:14,995 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-25 08:53:14,998 INFO L87 Difference]: Start difference. First operand 31 states. Second operand 5 states. [2020-09-25 08:53:15,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:53:15,082 INFO L93 Difference]: Finished difference Result 44 states and 50 transitions. [2020-09-25 08:53:15,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 08:53:15,085 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2020-09-25 08:53:15,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:53:15,099 INFO L225 Difference]: With dead ends: 44 [2020-09-25 08:53:15,100 INFO L226 Difference]: Without dead ends: 28 [2020-09-25 08:53:15,104 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 6 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 08:53:15,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2020-09-25 08:53:15,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2020-09-25 08:53:15,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2020-09-25 08:53:15,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 32 transitions. [2020-09-25 08:53:15,164 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 32 transitions. Word has length 16 [2020-09-25 08:53:15,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:53:15,165 INFO L479 AbstractCegarLoop]: Abstraction has 28 states and 32 transitions. [2020-09-25 08:53:15,165 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 08:53:15,166 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 32 transitions. [2020-09-25 08:53:15,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-09-25 08:53:15,168 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:53:15,169 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 08:53:15,169 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 08:53:15,169 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:53:15,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:53:15,170 INFO L82 PathProgramCache]: Analyzing trace with hash -389703589, now seen corresponding path program 1 times [2020-09-25 08:53:15,170 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:53:15,171 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [854150787] [2020-09-25 08:53:15,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:53:15,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:53:15,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:15,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:15,329 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:53:15,329 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-09-25 08:53:15,330 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 08:53:15,330 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 147 [2020-09-25 08:53:15,330 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:53:15,330 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:53:15,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 08:53:15,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 08:53:15,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 08:53:15,331 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:53:15,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:53:15,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:53:15,349 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:15,351 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:53:15,351 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:53:15,351 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:53:15,352 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:53:15,352 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:53:15,352 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:53:15,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:53:15,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:53:15,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:53:15,353 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:53:15,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 08:53:15,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:53:15,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:15,391 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:53:15,392 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 08:53:15,392 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:53:15,392 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-09-25 08:53:15,392 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:53:15,392 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:53:15,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 08:53:15,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 08:53:15,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 08:53:15,393 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:53:15,433 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 08:53:15,433 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [854150787] [2020-09-25 08:53:15,434 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:53:15,434 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 08:53:15,434 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [631572169] [2020-09-25 08:53:15,436 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 08:53:15,436 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:53:15,437 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 08:53:15,437 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-25 08:53:15,437 INFO L87 Difference]: Start difference. First operand 28 states and 32 transitions. Second operand 5 states. [2020-09-25 08:53:15,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:53:15,495 INFO L93 Difference]: Finished difference Result 36 states and 41 transitions. [2020-09-25 08:53:15,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 08:53:15,496 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2020-09-25 08:53:15,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:53:15,498 INFO L225 Difference]: With dead ends: 36 [2020-09-25 08:53:15,498 INFO L226 Difference]: Without dead ends: 30 [2020-09-25 08:53:15,499 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 08:53:15,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-09-25 08:53:15,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 28. [2020-09-25 08:53:15,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2020-09-25 08:53:15,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 32 transitions. [2020-09-25 08:53:15,508 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 32 transitions. Word has length 17 [2020-09-25 08:53:15,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:53:15,508 INFO L479 AbstractCegarLoop]: Abstraction has 28 states and 32 transitions. [2020-09-25 08:53:15,509 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 08:53:15,509 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 32 transitions. [2020-09-25 08:53:15,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-09-25 08:53:15,511 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:53:15,511 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 08:53:15,511 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 08:53:15,512 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:53:15,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:53:15,512 INFO L82 PathProgramCache]: Analyzing trace with hash 50309368, now seen corresponding path program 1 times [2020-09-25 08:53:15,513 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:53:15,513 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2001283630] [2020-09-25 08:53:15,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:53:15,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:53:15,535 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:15,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:15,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:15,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:17,525 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:53:17,525 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-09-25 08:53:17,526 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 08:53:17,526 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1998 [2020-09-25 08:53:17,526 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:53:17,526 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:53:17,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 08:53:17,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-09-25 08:53:17,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-25 08:53:17,527 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:53:17,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:53:17,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:53:17,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:17,558 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:53:17,558 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:53:17,558 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:53:17,559 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:53:17,559 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:53:17,559 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:53:17,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:53:17,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:53:17,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:53:17,561 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:53:17,564 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 08:53:17,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:53:17,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:17,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:17,902 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:53:17,903 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 08:53:17,903 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 08:53:17,903 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 324 [2020-09-25 08:53:17,904 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:53:17,904 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:53:17,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 08:53:17,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:53:17,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-09-25 08:53:17,905 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:53:17,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 08:53:17,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:53:17,967 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:17,996 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:53:17,997 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:53:17,998 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:53:17,998 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-09-25 08:53:17,999 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:53:17,999 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:53:17,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 08:53:17,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:53:18,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 08:53:18,000 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:53:18,027 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 08:53:18,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:53:18,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:18,065 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:53:18,070 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:53:18,070 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:53:18,071 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-09-25 08:53:18,071 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:53:18,071 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:53:18,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 08:53:18,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:53:18,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 08:53:18,072 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:53:18,096 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-09-25 08:53:18,097 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2001283630] [2020-09-25 08:53:18,097 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 08:53:18,097 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-09-25 08:53:18,097 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [643635942] [2020-09-25 08:53:18,099 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 08:53:18,100 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:53:18,106 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 08:53:18,106 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2020-09-25 08:53:18,107 INFO L87 Difference]: Start difference. First operand 28 states and 32 transitions. Second operand 8 states. [2020-09-25 08:53:18,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:53:18,231 INFO L93 Difference]: Finished difference Result 47 states and 57 transitions. [2020-09-25 08:53:18,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-25 08:53:18,234 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 33 [2020-09-25 08:53:18,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:53:18,237 INFO L225 Difference]: With dead ends: 47 [2020-09-25 08:53:18,237 INFO L226 Difference]: Without dead ends: 41 [2020-09-25 08:53:18,239 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2020-09-25 08:53:18,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2020-09-25 08:53:18,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 36. [2020-09-25 08:53:18,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2020-09-25 08:53:18,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 44 transitions. [2020-09-25 08:53:18,257 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 44 transitions. Word has length 33 [2020-09-25 08:53:18,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:53:18,259 INFO L479 AbstractCegarLoop]: Abstraction has 36 states and 44 transitions. [2020-09-25 08:53:18,259 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 08:53:18,259 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 44 transitions. [2020-09-25 08:53:18,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-09-25 08:53:18,263 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:53:18,264 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 08:53:18,264 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 08:53:18,264 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:53:18,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:53:18,265 INFO L82 PathProgramCache]: Analyzing trace with hash 795081563, now seen corresponding path program 1 times [2020-09-25 08:53:18,265 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:53:18,266 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1988520041] [2020-09-25 08:53:18,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:53:18,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:53:18,285 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:18,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:18,319 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:18,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:18,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:19,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:21,781 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:53:21,782 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-09-25 08:53:21,782 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 08:53:21,783 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3501 [2020-09-25 08:53:21,783 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:53:21,784 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:53:21,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 08:53:21,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-09-25 08:53:21,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-25 08:53:21,785 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 08:53:21,816 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:53:21,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:53:21,818 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:21,819 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:53:21,820 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:53:21,820 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:53:21,821 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:53:21,821 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:53:21,822 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:53:21,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:53:21,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:53:21,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:53:21,823 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 08:53:21,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 08:53:21,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:53:21,844 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:21,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:21,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:21,937 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:22,578 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:53:22,579 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-25 08:53:22,579 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 08:53:22,579 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 739 [2020-09-25 08:53:22,580 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:53:22,580 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:53:22,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 08:53:22,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:53:22,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 08:53:22,581 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:53:22,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 08:53:22,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:53:22,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:22,649 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:53:22,649 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:53:22,650 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:53:22,650 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 08:53:22,650 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:53:22,650 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:53:22,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 08:53:22,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:53:22,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 08:53:22,651 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:53:22,673 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 08:53:22,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:53:22,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:22,691 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:53:22,692 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 08:53:22,692 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:53:22,692 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-25 08:53:22,693 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:53:22,693 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:53:22,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 08:53:22,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:53:22,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 08:53:22,694 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:53:22,719 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-09-25 08:53:22,719 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1988520041] [2020-09-25 08:53:22,719 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 08:53:22,719 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-09-25 08:53:22,720 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1592914771] [2020-09-25 08:53:22,721 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 08:53:22,722 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:53:22,722 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 08:53:22,724 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-09-25 08:53:22,724 INFO L87 Difference]: Start difference. First operand 36 states and 44 transitions. Second operand 9 states. [2020-09-25 08:53:22,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:53:22,863 INFO L93 Difference]: Finished difference Result 58 states and 75 transitions. [2020-09-25 08:53:22,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-25 08:53:22,864 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 34 [2020-09-25 08:53:22,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:53:22,866 INFO L225 Difference]: With dead ends: 58 [2020-09-25 08:53:22,866 INFO L226 Difference]: Without dead ends: 52 [2020-09-25 08:53:22,867 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2020-09-25 08:53:22,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2020-09-25 08:53:22,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 44. [2020-09-25 08:53:22,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2020-09-25 08:53:22,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 58 transitions. [2020-09-25 08:53:22,879 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 58 transitions. Word has length 34 [2020-09-25 08:53:22,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:53:22,880 INFO L479 AbstractCegarLoop]: Abstraction has 44 states and 58 transitions. [2020-09-25 08:53:22,880 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 08:53:22,880 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 58 transitions. [2020-09-25 08:53:22,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-09-25 08:53:22,882 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:53:22,882 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 08:53:22,883 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 08:53:22,883 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:53:22,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:53:22,883 INFO L82 PathProgramCache]: Analyzing trace with hash -643371531, now seen corresponding path program 2 times [2020-09-25 08:53:22,884 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:53:22,884 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [5044181] [2020-09-25 08:53:22,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:53:22,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:53:22,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:22,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:23,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:23,770 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:53:23,771 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-09-25 08:53:23,771 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 08:53:23,771 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 879 [2020-09-25 08:53:23,771 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:53:23,772 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:53:23,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 08:53:23,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-25 08:53:23,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-25 08:53:23,772 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:53:23,792 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:53:23,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:53:23,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:23,795 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:53:23,796 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:53:23,796 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:53:23,796 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 08:53:23,796 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:53:23,797 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:53:23,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:53:23,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:53:23,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:53:23,798 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:53:23,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 08:53:23,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:53:23,808 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:23,858 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:53:23,859 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-25 08:53:23,859 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:53:23,859 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-09-25 08:53:23,859 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:53:23,859 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:53:23,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 08:53:23,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:53:23,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 08:53:23,860 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:53:23,893 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 08:53:23,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:53:23,897 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:23,907 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:53:23,908 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 08:53:23,908 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:53:23,908 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 08:53:23,908 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:53:23,909 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:53:23,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 08:53:23,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:53:23,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 08:53:23,909 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:53:23,922 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 08:53:23,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:53:23,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:23,938 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:53:23,939 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:53:23,939 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:53:23,939 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 08:53:23,939 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:53:23,939 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:53:23,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 08:53:23,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:53:23,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 08:53:23,940 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:53:23,959 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-09-25 08:53:23,959 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [5044181] [2020-09-25 08:53:23,960 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 08:53:23,960 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-09-25 08:53:23,960 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [544420474] [2020-09-25 08:53:23,961 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 08:53:23,961 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:53:23,961 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 08:53:23,961 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-09-25 08:53:23,962 INFO L87 Difference]: Start difference. First operand 44 states and 58 transitions. Second operand 9 states. [2020-09-25 08:53:24,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:53:24,059 INFO L93 Difference]: Finished difference Result 63 states and 89 transitions. [2020-09-25 08:53:24,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 08:53:24,060 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 34 [2020-09-25 08:53:24,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:53:24,063 INFO L225 Difference]: With dead ends: 63 [2020-09-25 08:53:24,063 INFO L226 Difference]: Without dead ends: 57 [2020-09-25 08:53:24,064 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2020-09-25 08:53:24,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2020-09-25 08:53:24,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 54. [2020-09-25 08:53:24,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-09-25 08:53:24,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 80 transitions. [2020-09-25 08:53:24,077 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 80 transitions. Word has length 34 [2020-09-25 08:53:24,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:53:24,077 INFO L479 AbstractCegarLoop]: Abstraction has 54 states and 80 transitions. [2020-09-25 08:53:24,077 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 08:53:24,078 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 80 transitions. [2020-09-25 08:53:24,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-09-25 08:53:24,080 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:53:24,080 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 08:53:24,080 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 08:53:24,081 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:53:24,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:53:24,081 INFO L82 PathProgramCache]: Analyzing trace with hash 765810174, now seen corresponding path program 1 times [2020-09-25 08:53:24,081 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:53:24,081 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [912919241] [2020-09-25 08:53:24,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:53:24,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:53:24,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:24,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:24,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:24,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:24,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:25,597 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:53:25,597 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-09-25 08:53:25,597 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 08:53:25,598 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1509 [2020-09-25 08:53:25,598 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:53:25,598 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:53:25,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 08:53:25,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-25 08:53:25,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-25 08:53:25,599 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:53:25,619 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:53:25,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:53:25,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:25,622 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:53:25,622 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:53:25,623 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:53:25,623 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 08:53:25,623 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:53:25,623 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:53:25,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:53:25,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:53:25,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:53:25,624 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:53:25,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 08:53:25,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:53:25,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:25,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:25,674 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:26,069 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:53:26,069 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-25 08:53:26,069 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 08:53:26,070 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 438 [2020-09-25 08:53:26,070 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:53:26,070 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:53:26,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 08:53:26,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:53:26,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-25 08:53:26,072 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:53:26,115 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 08:53:26,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:53:26,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:26,135 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:53:26,136 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 08:53:26,136 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:53:26,136 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-25 08:53:26,137 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:53:26,137 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:53:26,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 08:53:26,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:53:26,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 08:53:26,138 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:53:26,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 08:53:26,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:53:26,157 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:26,169 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:53:26,170 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 08:53:26,170 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:53:26,170 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 08:53:26,171 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:53:26,171 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:53:26,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 08:53:26,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:53:26,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 08:53:26,172 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:53:26,188 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-09-25 08:53:26,189 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [912919241] [2020-09-25 08:53:26,189 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 08:53:26,189 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-09-25 08:53:26,190 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [390395169] [2020-09-25 08:53:26,190 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 08:53:26,190 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:53:26,190 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 08:53:26,191 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-09-25 08:53:26,191 INFO L87 Difference]: Start difference. First operand 54 states and 80 transitions. Second operand 9 states. [2020-09-25 08:53:26,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:53:26,290 INFO L93 Difference]: Finished difference Result 78 states and 112 transitions. [2020-09-25 08:53:26,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 08:53:26,291 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 35 [2020-09-25 08:53:26,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:53:26,294 INFO L225 Difference]: With dead ends: 78 [2020-09-25 08:53:26,294 INFO L226 Difference]: Without dead ends: 72 [2020-09-25 08:53:26,295 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2020-09-25 08:53:26,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2020-09-25 08:53:26,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 54. [2020-09-25 08:53:26,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-09-25 08:53:26,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 80 transitions. [2020-09-25 08:53:26,319 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 80 transitions. Word has length 35 [2020-09-25 08:53:26,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:53:26,321 INFO L479 AbstractCegarLoop]: Abstraction has 54 states and 80 transitions. [2020-09-25 08:53:26,321 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 08:53:26,321 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 80 transitions. [2020-09-25 08:53:26,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-09-25 08:53:26,326 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:53:26,327 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 3, 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 08:53:26,327 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 08:53:26,327 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:53:26,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:53:26,328 INFO L82 PathProgramCache]: Analyzing trace with hash 1485744477, now seen corresponding path program 3 times [2020-09-25 08:53:26,328 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:53:26,329 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1716170724] [2020-09-25 08:53:26,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:53:26,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:53:26,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:26,360 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:26,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:26,399 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:26,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:26,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:26,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:30,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:31,341 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:53:31,342 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 68 [2020-09-25 08:53:31,342 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-09-25 08:53:31,342 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-09-25 08:53:31,343 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:53:31,343 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:53:31,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 08:53:31,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 08:53:31,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-09-25 08:53:31,345 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:53:31,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:53:31,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:53:31,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:31,368 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:53:31,368 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:53:31,368 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:53:31,370 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 08:53:31,370 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:53:31,371 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:53:31,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:53:31,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:53:31,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:53:31,372 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:53:31,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 08:53:31,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:53:31,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:31,419 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:31,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:31,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:31,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:31,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:32,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:33,211 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:53:33,211 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-09-25 08:53:33,212 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-25 08:53:33,212 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1825 [2020-09-25 08:53:33,212 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:53:33,212 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:53:33,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 08:53:33,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 08:53:33,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-09-25 08:53:33,213 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:53:33,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 08:53:33,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:53:33,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:33,253 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:53:33,253 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:53:33,253 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:53:33,253 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 08:53:33,254 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:53:33,254 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:53:33,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:53:33,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:53:33,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 08:53:33,255 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:53:33,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 08:53:33,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:53:33,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:33,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:33,460 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:53:33,460 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-25 08:53:33,460 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 08:53:33,460 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 199 [2020-09-25 08:53:33,461 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:53:33,461 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:53:33,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 08:53:33,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:53:33,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-25 08:53:33,462 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:53:33,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 08:53:33,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:53:33,490 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:33,494 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:53:33,495 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 08:53:33,495 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:53:33,495 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 08:53:33,496 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:53:33,496 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:53:33,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:53:33,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:53:33,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 08:53:33,497 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:53:33,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 08:53:33,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:53:33,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:33,506 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:53:33,506 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:53:33,507 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:53:33,507 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 08:53:33,507 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:53:33,507 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:53:33,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 08:53:33,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:53:33,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 08:53:33,508 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:53:33,525 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 21 proven. 16 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2020-09-25 08:53:33,525 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1716170724] [2020-09-25 08:53:33,525 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 08:53:33,526 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-09-25 08:53:33,526 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1797894266] [2020-09-25 08:53:33,526 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 08:53:33,526 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:53:33,527 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 08:53:33,527 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-09-25 08:53:33,527 INFO L87 Difference]: Start difference. First operand 54 states and 80 transitions. Second operand 8 states. [2020-09-25 08:53:33,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:53:33,661 INFO L93 Difference]: Finished difference Result 142 states and 264 transitions. [2020-09-25 08:53:33,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-25 08:53:33,662 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 51 [2020-09-25 08:53:33,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:53:33,663 INFO L225 Difference]: With dead ends: 142 [2020-09-25 08:53:33,664 INFO L226 Difference]: Without dead ends: 94 [2020-09-25 08:53:33,667 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-09-25 08:53:33,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2020-09-25 08:53:33,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 68. [2020-09-25 08:53:33,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2020-09-25 08:53:33,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 95 transitions. [2020-09-25 08:53:33,682 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 95 transitions. Word has length 51 [2020-09-25 08:53:33,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:53:33,682 INFO L479 AbstractCegarLoop]: Abstraction has 68 states and 95 transitions. [2020-09-25 08:53:33,682 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 08:53:33,683 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 95 transitions. [2020-09-25 08:53:33,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2020-09-25 08:53:33,685 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:53:33,685 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 08:53:33,685 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-25 08:53:33,685 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:53:33,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:53:33,686 INFO L82 PathProgramCache]: Analyzing trace with hash -1068467993, now seen corresponding path program 2 times [2020-09-25 08:53:33,686 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:53:33,686 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [199227769] [2020-09-25 08:53:33,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:53:33,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:53:33,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:33,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:33,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:33,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:34,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:34,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:34,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:35,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:35,137 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:35,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:35,319 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:35,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:38,701 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:53:38,701 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 114 [2020-09-25 08:53:38,701 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 12 [2020-09-25 08:53:38,702 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-09-25 08:53:38,702 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:53:38,702 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:53:38,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 08:53:38,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-09-25 08:53:38,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-25 08:53:38,703 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:53:38,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:53:38,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:53:38,716 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:38,717 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:53:38,718 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:53:38,718 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:53:38,718 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 08:53:38,718 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:53:38,719 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:53:38,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:53:38,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:53:38,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:53:38,719 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:53:38,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 08:53:38,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:53:38,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:38,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:38,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:38,825 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:38,889 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:38,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:38,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:39,178 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:39,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:39,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:40,101 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:40,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:41,431 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:43,728 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:53:43,729 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 100 [2020-09-25 08:53:43,729 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 13 [2020-09-25 08:53:43,729 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-09-25 08:53:43,729 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:53:43,729 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:53:43,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 08:53:43,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 08:53:43,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-25 08:53:43,730 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:53:43,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 08:53:43,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:53:43,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:43,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:43,773 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:43,986 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:53:43,986 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-25 08:53:43,986 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 08:53:43,987 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 238 [2020-09-25 08:53:43,987 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:53:43,987 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:53:43,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 08:53:43,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:53:43,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-25 08:53:43,987 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:53:44,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 08:53:44,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:53:44,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:44,022 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:53:44,022 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 08:53:44,022 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:53:44,023 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 08:53:44,023 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:53:44,023 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:53:44,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 08:53:44,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:53:44,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 08:53:44,024 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:53:44,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 08:53:44,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:53:44,044 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:44,050 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:53:44,051 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 08:53:44,051 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:53:44,051 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 08:53:44,051 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:53:44,051 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:53:44,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:53:44,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:53:44,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 08:53:44,052 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:53:44,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-09-25 08:53:44,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:53:44,065 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:44,083 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:44,124 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:44,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:44,431 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:44,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:44,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:44,491 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:44,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:44,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:46,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:46,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:49,062 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:53:49,062 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-09-25 08:53:49,063 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 12 [2020-09-25 08:53:49,063 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-09-25 08:53:49,063 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:53:49,063 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:53:49,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 08:53:49,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 08:53:49,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-09-25 08:53:49,064 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:53:49,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 08:53:49,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:53:49,106 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:49,129 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:49,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:49,165 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:49,338 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:53:49,339 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-25 08:53:49,339 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 08:53:49,339 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 235 [2020-09-25 08:53:49,339 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:53:49,339 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:53:49,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 08:53:49,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:53:49,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-25 08:53:49,340 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:53:49,370 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 08:53:49,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:53:49,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:49,379 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:53:49,380 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 08:53:49,380 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:53:49,380 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 08:53:49,380 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:53:49,381 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:53:49,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:53:49,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:53:49,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 08:53:49,382 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:53:49,384 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 08:53:49,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:53:49,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:49,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:49,412 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:53:49,412 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 08:53:49,413 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 08:53:49,413 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-09-25 08:53:49,413 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:53:49,413 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:53:49,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 08:53:49,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:53:49,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 08:53:49,414 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:53:49,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-09-25 08:53:49,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:53:49,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:49,436 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:53:49,436 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 08:53:49,437 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:53:49,437 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 08:53:49,437 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:53:49,437 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:53:49,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:53:49,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:53:49,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 08:53:49,438 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:53:49,460 INFO L134 CoverageAnalysis]: Checked inductivity of 232 backedges. 87 proven. 79 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2020-09-25 08:53:49,461 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [199227769] [2020-09-25 08:53:49,462 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 08:53:49,462 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-09-25 08:53:49,462 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1681093499] [2020-09-25 08:53:49,464 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 08:53:49,464 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:53:49,465 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 08:53:49,465 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-09-25 08:53:49,465 INFO L87 Difference]: Start difference. First operand 68 states and 95 transitions. Second operand 10 states. [2020-09-25 08:53:49,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:53:49,753 INFO L93 Difference]: Finished difference Result 244 states and 431 transitions. [2020-09-25 08:53:49,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-25 08:53:49,753 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 89 [2020-09-25 08:53:49,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:53:49,758 INFO L225 Difference]: With dead ends: 244 [2020-09-25 08:53:49,759 INFO L226 Difference]: Without dead ends: 182 [2020-09-25 08:53:49,760 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2020-09-25 08:53:49,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2020-09-25 08:53:49,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 146. [2020-09-25 08:53:49,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 146 states. [2020-09-25 08:53:49,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 250 transitions. [2020-09-25 08:53:49,786 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 250 transitions. Word has length 89 [2020-09-25 08:53:49,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:53:49,787 INFO L479 AbstractCegarLoop]: Abstraction has 146 states and 250 transitions. [2020-09-25 08:53:49,787 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 08:53:49,787 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 250 transitions. [2020-09-25 08:53:49,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2020-09-25 08:53:49,790 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:53:49,790 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 7, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 08:53:49,791 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-25 08:53:49,791 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:53:49,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:53:49,791 INFO L82 PathProgramCache]: Analyzing trace with hash 120423742, now seen corresponding path program 4 times [2020-09-25 08:53:49,791 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:53:49,792 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [314903954] [2020-09-25 08:53:49,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:53:49,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:53:49,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:49,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:49,866 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:49,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:49,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:50,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:50,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:50,682 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:54,806 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:53:54,807 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-09-25 08:53:54,807 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-09-25 08:53:54,807 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-09-25 08:53:54,807 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:53:54,807 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:53:54,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 08:53:54,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 08:53:54,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-09-25 08:53:54,808 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:53:54,822 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:53:54,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:53:54,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:54,824 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:53:54,825 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:53:54,825 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:53:54,825 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 08:53:54,825 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:53:54,825 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:53:54,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:53:54,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:53:54,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:53:54,826 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:53:54,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 08:53:54,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:53:54,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:54,855 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:54,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:54,910 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:54,983 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:55,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:57,459 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:57,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:57,525 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:59,241 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:59,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:59,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:59,838 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:53:59,838 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-09-25 08:53:59,839 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 12 [2020-09-25 08:53:59,839 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-09-25 08:53:59,839 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:53:59,839 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:53:59,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 08:53:59,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-09-25 08:53:59,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-09-25 08:53:59,840 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:53:59,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 08:53:59,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:53:59,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:59,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:59,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:59,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:00,659 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:54:00,660 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-09-25 08:54:00,660 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 08:54:00,660 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 808 [2020-09-25 08:54:00,660 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:54:00,660 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:54:00,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 08:54:00,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 08:54:00,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-09-25 08:54:00,661 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:54:00,674 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 08:54:00,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:54:00,680 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:00,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:00,728 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:54:00,729 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 08:54:00,729 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 08:54:00,729 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-09-25 08:54:00,729 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:54:00,729 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:54:00,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 08:54:00,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:54:00,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-25 08:54:00,730 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:54:00,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 08:54:00,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:54:00,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:00,762 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:54:00,762 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:54:00,762 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:54:00,763 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 08:54:00,763 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:54:00,763 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:54:00,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 08:54:00,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:54:00,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 08:54:00,764 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:54:00,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 08:54:00,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:54:00,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:00,786 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:54:00,786 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:54:00,786 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:54:00,786 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 08:54:00,786 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:54:00,786 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:54:00,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:54:00,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:54:00,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 08:54:00,787 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:54:00,789 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-09-25 08:54:00,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:54:00,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:00,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:00,819 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:54:00,820 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 08:54:00,820 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 08:54:00,820 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-09-25 08:54:00,820 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:54:00,820 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:54:00,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 08:54:00,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 08:54:00,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 08:54:00,821 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:54:00,842 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-09-25 08:54:00,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:54:00,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:00,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:01,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:01,135 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:54:01,135 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-09-25 08:54:01,135 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 08:54:01,136 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 287 [2020-09-25 08:54:01,136 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:54:01,136 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:54:01,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:54:01,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 51 [2020-09-25 08:54:01,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:54:01,136 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:54:01,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 08:54:01,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:54:01,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:01,143 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:54:01,143 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 08:54:01,143 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:54:01,143 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 08:54:01,143 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:54:01,144 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:54:01,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:54:01,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:54:01,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:54:01,144 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:54:01,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 08:54:01,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:54:01,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:01,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:01,189 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:54:01,189 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 08:54:01,189 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 08:54:01,189 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-09-25 08:54:01,189 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:54:01,190 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:54:01,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:54:01,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:54:01,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:54:01,190 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:54:01,193 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 08:54:01,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:54:01,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:01,196 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:54:01,196 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:54:01,196 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:54:01,197 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:54:01,197 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:54:01,197 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:54:01,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:54:01,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:54:01,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:54:01,197 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:54:01,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 08:54:01,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:54:01,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:01,203 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:54:01,203 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:54:01,203 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:54:01,203 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:54:01,203 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:54:01,204 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:54:01,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:54:01,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:54:01,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:54:01,205 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:54:01,218 INFO L134 CoverageAnalysis]: Checked inductivity of 318 backedges. 63 proven. 110 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2020-09-25 08:54:01,218 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [314903954] [2020-09-25 08:54:01,219 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 08:54:01,219 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-09-25 08:54:01,219 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2125013776] [2020-09-25 08:54:01,220 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 08:54:01,220 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:54:01,220 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 08:54:01,220 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-25 08:54:01,221 INFO L87 Difference]: Start difference. First operand 146 states and 250 transitions. Second operand 9 states. [2020-09-25 08:54:01,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:54:01,439 INFO L93 Difference]: Finished difference Result 288 states and 521 transitions. [2020-09-25 08:54:01,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-25 08:54:01,444 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 103 [2020-09-25 08:54:01,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:54:01,448 INFO L225 Difference]: With dead ends: 288 [2020-09-25 08:54:01,448 INFO L226 Difference]: Without dead ends: 148 [2020-09-25 08:54:01,451 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2020-09-25 08:54:01,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2020-09-25 08:54:01,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 124. [2020-09-25 08:54:01,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 124 states. [2020-09-25 08:54:01,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 201 transitions. [2020-09-25 08:54:01,481 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 201 transitions. Word has length 103 [2020-09-25 08:54:01,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:54:01,481 INFO L479 AbstractCegarLoop]: Abstraction has 124 states and 201 transitions. [2020-09-25 08:54:01,481 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 08:54:01,481 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 201 transitions. [2020-09-25 08:54:01,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2020-09-25 08:54:01,484 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:54:01,484 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 10, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 08:54:01,484 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-25 08:54:01,484 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:54:01,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:54:01,485 INFO L82 PathProgramCache]: Analyzing trace with hash 31834056, now seen corresponding path program 5 times [2020-09-25 08:54:01,485 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:54:01,485 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1930532903] [2020-09-25 08:54:01,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:54:01,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:54:01,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:01,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:01,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:01,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:01,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:01,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:01,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:02,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:02,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:03,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:03,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:03,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:03,685 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:05,333 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:06,402 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:06,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:06,459 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:06,491 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:06,516 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:54:06,516 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 155 [2020-09-25 08:54:06,516 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 18 [2020-09-25 08:54:06,516 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5019 [2020-09-25 08:54:06,517 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:54:06,517 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:54:06,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-25 08:54:06,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-09-25 08:54:06,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-09-25 08:54:06,518 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:54:06,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:54:06,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:54:06,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:06,532 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:54:06,533 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:54:06,533 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:54:06,533 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 08:54:06,533 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:54:06,533 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:54:06,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:54:06,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:54:06,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:54:06,534 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:54:06,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 08:54:06,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:54:06,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:06,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:06,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:06,689 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:07,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:07,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:07,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking...