/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.8 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/recursive-simple/fibo_2calls_5-1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 07:45:06,218 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 07:45:06,221 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 07:45:06,247 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 07:45:06,248 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 07:45:06,249 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 07:45:06,250 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 07:45:06,252 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 07:45:06,254 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 07:45:06,255 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 07:45:06,256 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 07:45:06,257 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 07:45:06,257 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 07:45:06,259 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 07:45:06,260 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 07:45:06,261 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 07:45:06,262 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 07:45:06,263 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 07:45:06,265 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 07:45:06,266 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 07:45:06,268 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 07:45:06,269 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 07:45:06,270 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 07:45:06,271 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 07:45:06,274 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 07:45:06,274 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 07:45:06,274 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 07:45:06,276 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 07:45:06,276 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 07:45:06,277 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 07:45:06,277 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 07:45:06,278 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 07:45:06,279 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 07:45:06,280 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 07:45:06,281 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 07:45:06,281 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 07:45:06,282 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 07:45:06,282 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 07:45:06,283 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 07:45:06,284 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 07:45:06,284 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 07:45:06,285 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 07:45:06,312 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 07:45:06,312 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 07:45:06,313 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 07:45:06,313 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 07:45:06,314 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 07:45:06,314 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 07:45:06,314 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 07:45:06,314 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 07:45:06,314 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 07:45:06,315 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 07:45:06,315 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 07:45:06,315 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 07:45:06,315 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 07:45:06,315 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 07:45:06,315 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 07:45:06,319 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 07:45:06,319 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 07:45:06,319 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 07:45:06,320 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 07:45:06,320 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 07:45:06,320 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 07:45:06,320 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 07:45:06,320 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 07:45:06,321 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 07:45:06,321 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 07:45:06,321 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 07:45:06,321 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 07:45:06,321 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 07:45:06,322 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 07:45:06,322 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; [2020-09-25 07:45:06,858 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 07:45:06,888 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 07:45:06,893 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 07:45:06,896 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 07:45:06,899 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 07:45:06,900 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive-simple/fibo_2calls_5-1.c [2020-09-25 07:45:06,994 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9a7e92ccc/f451d5e3556f4ed8be08ccf785b18034/FLAG3bab09ad1 [2020-09-25 07:45:07,555 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 07:45:07,556 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/recursive-simple/fibo_2calls_5-1.c [2020-09-25 07:45:07,565 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9a7e92ccc/f451d5e3556f4ed8be08ccf785b18034/FLAG3bab09ad1 [2020-09-25 07:45:07,893 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9a7e92ccc/f451d5e3556f4ed8be08ccf785b18034 [2020-09-25 07:45:07,906 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 07:45:07,913 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 07:45:07,917 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 07:45:07,917 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 07:45:07,921 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 07:45:07,923 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 07:45:07" (1/1) ... [2020-09-25 07:45:07,928 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37d4521a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:45:07, skipping insertion in model container [2020-09-25 07:45:07,928 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 07:45:07" (1/1) ... [2020-09-25 07:45:07,938 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 07:45:07,962 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 07:45:08,201 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 07:45:08,206 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 07:45:08,225 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 07:45:08,240 INFO L208 MainTranslator]: Completed translation [2020-09-25 07:45:08,240 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:45:08 WrapperNode [2020-09-25 07:45:08,240 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 07:45:08,241 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 07:45:08,241 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 07:45:08,242 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 07:45:08,256 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:45:08" (1/1) ... [2020-09-25 07:45:08,257 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:45:08" (1/1) ... [2020-09-25 07:45:08,263 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:45:08" (1/1) ... [2020-09-25 07:45:08,263 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:45:08" (1/1) ... [2020-09-25 07:45:08,341 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:45:08" (1/1) ... [2020-09-25 07:45:08,344 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:45:08" (1/1) ... [2020-09-25 07:45:08,345 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:45:08" (1/1) ... [2020-09-25 07:45:08,347 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 07:45:08,347 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 07:45:08,348 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 07:45:08,348 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 07:45:08,357 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:45:08" (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 07:45:08,431 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 07:45:08,432 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 07:45:08,432 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo1 [2020-09-25 07:45:08,432 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo2 [2020-09-25 07:45:08,432 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 07:45:08,432 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 07:45:08,433 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 07:45:08,433 INFO L130 BoogieDeclarations]: Found specification of procedure fibo1 [2020-09-25 07:45:08,433 INFO L130 BoogieDeclarations]: Found specification of procedure fibo2 [2020-09-25 07:45:08,433 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 07:45:08,433 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 07:45:08,434 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 07:45:08,682 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 07:45:08,683 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-25 07:45:08,687 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 07:45:08 BoogieIcfgContainer [2020-09-25 07:45:08,688 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 07:45:08,689 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 07:45:08,689 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 07:45:08,693 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 07:45:08,694 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 07:45:07" (1/3) ... [2020-09-25 07:45:08,695 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2de653ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 07:45:08, skipping insertion in model container [2020-09-25 07:45:08,695 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:45:08" (2/3) ... [2020-09-25 07:45:08,695 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2de653ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 07:45:08, skipping insertion in model container [2020-09-25 07:45:08,696 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 07:45:08" (3/3) ... [2020-09-25 07:45:08,698 INFO L109 eAbstractionObserver]: Analyzing ICFG fibo_2calls_5-1.c [2020-09-25 07:45:08,710 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 07:45:08,720 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 07:45:08,743 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 07:45:08,774 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 07:45:08,774 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 07:45:08,774 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 07:45:08,774 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 07:45:08,775 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 07:45:08,775 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 07:45:08,775 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 07:45:08,775 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 07:45:08,799 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states. [2020-09-25 07:45:08,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-09-25 07:45:08,806 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:45:08,807 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:45:08,808 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:45:08,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:45:08,814 INFO L82 PathProgramCache]: Analyzing trace with hash -1089710179, now seen corresponding path program 1 times [2020-09-25 07:45:08,823 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:45:08,823 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1672791921] [2020-09-25 07:45:08,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:45:08,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:08,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:08,988 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:08,988 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 07:45:08,989 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:45:08,989 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-09-25 07:45:08,991 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:08,992 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:08,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 07:45:08,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 07:45:08,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 07:45:08,993 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 07:45:09,054 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:45:09,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:09,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:09,060 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:09,060 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:45:09,061 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:45:09,061 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 07:45:09,061 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:09,061 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:09,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:45:09,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:45:09,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:45:09,062 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:45:09,067 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 07:45:09,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:09,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:09,096 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:09,096 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:45:09,096 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:45:09,096 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-25 07:45:09,097 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:09,097 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:09,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 07:45:09,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 07:45:09,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 07:45:09,098 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:45:09,190 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 07:45:09,192 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1672791921] [2020-09-25 07:45:09,195 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:45:09,195 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 07:45:09,197 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1106810351] [2020-09-25 07:45:09,205 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 07:45:09,205 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:45:09,227 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 07:45:09,229 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-25 07:45:09,231 INFO L87 Difference]: Start difference. First operand 45 states. Second operand 5 states. [2020-09-25 07:45:09,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:45:09,390 INFO L93 Difference]: Finished difference Result 58 states and 67 transitions. [2020-09-25 07:45:09,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 07:45:09,393 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2020-09-25 07:45:09,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:45:09,407 INFO L225 Difference]: With dead ends: 58 [2020-09-25 07:45:09,408 INFO L226 Difference]: Without dead ends: 42 [2020-09-25 07:45:09,412 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 07:45:09,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2020-09-25 07:45:09,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2020-09-25 07:45:09,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2020-09-25 07:45:09,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 49 transitions. [2020-09-25 07:45:09,472 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 49 transitions. Word has length 16 [2020-09-25 07:45:09,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:45:09,473 INFO L479 AbstractCegarLoop]: Abstraction has 42 states and 49 transitions. [2020-09-25 07:45:09,473 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 07:45:09,474 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 49 transitions. [2020-09-25 07:45:09,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-09-25 07:45:09,476 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:45:09,476 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 07:45:09,477 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 07:45:09,477 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:45:09,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:45:09,478 INFO L82 PathProgramCache]: Analyzing trace with hash -653728005, now seen corresponding path program 1 times [2020-09-25 07:45:09,478 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:45:09,478 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2116649475] [2020-09-25 07:45:09,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:45:09,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:09,497 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:09,565 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:09,566 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-09-25 07:45:09,566 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:45:09,566 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 75 [2020-09-25 07:45:09,567 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:09,567 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:09,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 07:45:09,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 07:45:09,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 07:45:09,568 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:45:09,628 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:45:09,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:09,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:09,636 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:09,637 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:45:09,637 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:45:09,637 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 07:45:09,638 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:09,640 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:09,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:45:09,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:45:09,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:45:09,642 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 07:45:09,646 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 07:45:09,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:09,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:09,717 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:09,718 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 07:45:09,718 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:45:09,718 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-09-25 07:45:09,721 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:09,721 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:09,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 07:45:09,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 07:45:09,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 07:45:09,722 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:45:09,756 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 07:45:09,757 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2116649475] [2020-09-25 07:45:09,757 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:45:09,757 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 07:45:09,758 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1890560201] [2020-09-25 07:45:09,760 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 07:45:09,760 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:45:09,760 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 07:45:09,761 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-25 07:45:09,761 INFO L87 Difference]: Start difference. First operand 42 states and 49 transitions. Second operand 5 states. [2020-09-25 07:45:09,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:45:09,845 INFO L93 Difference]: Finished difference Result 50 states and 58 transitions. [2020-09-25 07:45:09,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 07:45:09,846 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2020-09-25 07:45:09,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:45:09,848 INFO L225 Difference]: With dead ends: 50 [2020-09-25 07:45:09,848 INFO L226 Difference]: Without dead ends: 44 [2020-09-25 07:45:09,849 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 07:45:09,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2020-09-25 07:45:09,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 42. [2020-09-25 07:45:09,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2020-09-25 07:45:09,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 49 transitions. [2020-09-25 07:45:09,860 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 49 transitions. Word has length 17 [2020-09-25 07:45:09,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:45:09,860 INFO L479 AbstractCegarLoop]: Abstraction has 42 states and 49 transitions. [2020-09-25 07:45:09,860 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 07:45:09,860 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 49 transitions. [2020-09-25 07:45:09,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-09-25 07:45:09,864 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:45:09,864 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:45:09,865 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 07:45:09,865 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:45:09,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:45:09,866 INFO L82 PathProgramCache]: Analyzing trace with hash -1617834856, now seen corresponding path program 1 times [2020-09-25 07:45:09,866 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:45:09,866 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1759029977] [2020-09-25 07:45:09,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:45:09,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:09,889 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:09,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:09,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:10,462 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:10,463 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-09-25 07:45:10,463 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 07:45:10,463 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 581 [2020-09-25 07:45:10,465 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:10,465 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:10,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 07:45:10,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 07:45:10,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 07:45:10,466 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 07:45:10,480 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:45:10,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:10,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:10,485 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:10,486 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:45:10,486 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:45:10,486 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 07:45:10,487 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:10,487 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:10,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:45:10,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:45:10,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:45:10,488 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:45:10,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 07:45:10,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:10,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:10,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:10,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:10,766 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:10,766 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 07:45:10,767 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 07:45:10,767 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 262 [2020-09-25 07:45:10,767 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:10,767 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:10,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 07:45:10,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 07:45:10,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 07:45:10,768 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:45:10,795 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 07:45:10,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:10,802 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:10,811 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:10,812 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:45:10,812 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:45:10,812 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 07:45:10,812 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:10,813 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:10,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:45:10,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:45:10,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 07:45:10,813 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:45:10,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 07:45:10,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:10,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:10,834 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:10,834 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:45:10,834 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:45:10,835 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 07:45:10,835 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:10,835 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:10,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 07:45:10,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:45:10,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 07:45:10,836 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:45:10,861 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-25 07:45:10,861 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1759029977] [2020-09-25 07:45:10,862 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:45:10,862 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 07:45:10,862 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1029163656] [2020-09-25 07:45:10,863 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 07:45:10,863 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:45:10,863 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 07:45:10,864 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-25 07:45:10,864 INFO L87 Difference]: Start difference. First operand 42 states and 49 transitions. Second operand 7 states. [2020-09-25 07:45:10,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:45:10,990 INFO L93 Difference]: Finished difference Result 58 states and 69 transitions. [2020-09-25 07:45:10,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 07:45:10,991 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 33 [2020-09-25 07:45:10,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:45:10,994 INFO L225 Difference]: With dead ends: 58 [2020-09-25 07:45:10,994 INFO L226 Difference]: Without dead ends: 52 [2020-09-25 07:45:10,995 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-09-25 07:45:10,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2020-09-25 07:45:11,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 50. [2020-09-25 07:45:11,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2020-09-25 07:45:11,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 60 transitions. [2020-09-25 07:45:11,006 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 60 transitions. Word has length 33 [2020-09-25 07:45:11,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:45:11,007 INFO L479 AbstractCegarLoop]: Abstraction has 50 states and 60 transitions. [2020-09-25 07:45:11,007 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 07:45:11,007 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 60 transitions. [2020-09-25 07:45:11,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-09-25 07:45:11,009 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:45:11,009 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:45:11,009 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 07:45:11,010 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:45:11,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:45:11,010 INFO L82 PathProgramCache]: Analyzing trace with hash 186293384, now seen corresponding path program 1 times [2020-09-25 07:45:11,010 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:45:11,011 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [672400562] [2020-09-25 07:45:11,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:45:11,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:11,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:11,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:11,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:11,272 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:11,515 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:11,515 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-09-25 07:45:11,515 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 07:45:11,516 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 496 [2020-09-25 07:45:11,516 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:11,516 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:11,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 07:45:11,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 07:45:11,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-25 07:45:11,517 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:45:11,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:45:11,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:11,533 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:11,534 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:11,534 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:45:11,534 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:45:11,535 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:45:11,535 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:11,535 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:11,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:45:11,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:45:11,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:45:11,536 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:45:11,538 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 07:45:11,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:11,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:11,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:11,674 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:11,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:11,996 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:11,996 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-25 07:45:11,997 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 07:45:11,997 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 452 [2020-09-25 07:45:11,997 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:11,997 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:11,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 07:45:11,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 07:45:11,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-25 07:45:11,998 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:45:12,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 07:45:12,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:12,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:12,047 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:12,048 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 07:45:12,048 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:45:12,048 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-25 07:45:12,049 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:12,049 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:12,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 07:45:12,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:45:12,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 07:45:12,050 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:45:12,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 07:45:12,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:12,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:12,089 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:12,089 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 07:45:12,089 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:45:12,089 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 07:45:12,090 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:12,090 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:12,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:45:12,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:45:12,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 07:45:12,091 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:45:12,097 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-25 07:45:12,099 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [672400562] [2020-09-25 07:45:12,099 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 07:45:12,099 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-25 07:45:12,100 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [174762929] [2020-09-25 07:45:12,100 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 07:45:12,101 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:45:12,101 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 07:45:12,102 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-25 07:45:12,103 INFO L87 Difference]: Start difference. First operand 50 states and 60 transitions. Second operand 7 states. [2020-09-25 07:45:12,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:45:12,267 INFO L93 Difference]: Finished difference Result 110 states and 146 transitions. [2020-09-25 07:45:12,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 07:45:12,270 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 35 [2020-09-25 07:45:12,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:45:12,276 INFO L225 Difference]: With dead ends: 110 [2020-09-25 07:45:12,276 INFO L226 Difference]: Without dead ends: 66 [2020-09-25 07:45:12,278 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-09-25 07:45:12,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2020-09-25 07:45:12,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 54. [2020-09-25 07:45:12,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-09-25 07:45:12,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 68 transitions. [2020-09-25 07:45:12,302 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 68 transitions. Word has length 35 [2020-09-25 07:45:12,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:45:12,303 INFO L479 AbstractCegarLoop]: Abstraction has 54 states and 68 transitions. [2020-09-25 07:45:12,303 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 07:45:12,303 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 68 transitions. [2020-09-25 07:45:12,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-09-25 07:45:12,311 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:45:12,311 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:45:12,312 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 07:45:12,312 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:45:12,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:45:12,313 INFO L82 PathProgramCache]: Analyzing trace with hash 758565477, now seen corresponding path program 1 times [2020-09-25 07:45:12,313 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:45:12,313 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1298220077] [2020-09-25 07:45:12,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:45:12,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:12,335 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:12,356 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:12,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:12,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:12,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:12,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:12,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:17,329 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:17,330 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 68 [2020-09-25 07:45:17,330 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-25 07:45:17,330 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-25 07:45:17,330 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:17,330 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:17,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 07:45:17,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 07:45:17,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-09-25 07:45:17,331 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:45:17,343 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:45:17,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:17,345 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:17,346 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:17,346 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:45:17,346 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:45:17,347 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:45:17,347 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:17,347 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:17,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:45:17,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:45:17,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:45:17,348 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:45:17,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 07:45:17,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:17,358 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:17,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:17,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:17,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:17,696 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:17,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:17,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:20,849 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:20,850 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-09-25 07:45:20,850 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-25 07:45:20,850 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3495 [2020-09-25 07:45:20,851 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:20,851 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:20,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 07:45:20,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 07:45:20,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-09-25 07:45:20,853 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 07:45:20,898 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 07:45:20,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:20,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:20,935 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:20,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:21,123 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:21,124 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 07:45:21,124 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 07:45:21,125 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 220 [2020-09-25 07:45:21,125 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:21,126 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:21,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 07:45:21,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:45:21,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-25 07:45:21,127 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:45:21,159 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 07:45:21,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:21,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:21,168 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:21,168 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:45:21,169 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:45:21,169 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 07:45:21,170 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:21,170 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:21,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:45:21,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:45:21,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 07:45:21,171 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:45:21,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 07:45:21,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:21,177 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:21,182 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:21,182 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:45:21,182 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:45:21,183 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 07:45:21,183 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:21,183 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:21,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 07:45:21,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:45:21,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 07:45:21,193 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 10 [2020-09-25 07:45:21,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-09-25 07:45:21,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:21,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:21,232 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:21,232 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 07:45:21,232 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:45:21,233 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 07:45:21,233 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:21,233 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:21,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:45:21,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:45:21,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 07:45:21,234 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:45:21,243 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 8 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-09-25 07:45:21,243 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1298220077] [2020-09-25 07:45:21,244 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 07:45:21,244 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-09-25 07:45:21,244 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1435935236] [2020-09-25 07:45:21,245 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 07:45:21,245 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:45:21,246 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 07:45:21,246 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-25 07:45:21,246 INFO L87 Difference]: Start difference. First operand 54 states and 68 transitions. Second operand 9 states. [2020-09-25 07:45:21,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:45:21,449 INFO L93 Difference]: Finished difference Result 78 states and 105 transitions. [2020-09-25 07:45:21,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-25 07:45:21,450 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 51 [2020-09-25 07:45:21,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:45:21,452 INFO L225 Difference]: With dead ends: 78 [2020-09-25 07:45:21,452 INFO L226 Difference]: Without dead ends: 72 [2020-09-25 07:45:21,453 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2020-09-25 07:45:21,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2020-09-25 07:45:21,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 62. [2020-09-25 07:45:21,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62 states. [2020-09-25 07:45:21,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 80 transitions. [2020-09-25 07:45:21,468 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 80 transitions. Word has length 51 [2020-09-25 07:45:21,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:45:21,468 INFO L479 AbstractCegarLoop]: Abstraction has 62 states and 80 transitions. [2020-09-25 07:45:21,468 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 07:45:21,469 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 80 transitions. [2020-09-25 07:45:21,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2020-09-25 07:45:21,472 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:45:21,472 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:45:21,472 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 07:45:21,472 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:45:21,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:45:21,473 INFO L82 PathProgramCache]: Analyzing trace with hash 1208671938, now seen corresponding path program 1 times [2020-09-25 07:45:21,473 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:45:21,473 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [591285330] [2020-09-25 07:45:21,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:45:21,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:21,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:21,507 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:21,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:21,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:21,679 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:21,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:22,518 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:23,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:23,460 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:23,614 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:23,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:23,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:26,482 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:26,483 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-09-25 07:45:26,483 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 12 [2020-09-25 07:45:26,483 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-25 07:45:26,484 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:26,484 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:26,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 07:45:26,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-09-25 07:45:26,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-09-25 07:45:26,485 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:45:26,497 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:45:26,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:26,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:26,499 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:26,499 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:45:26,500 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:45:26,500 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:45:26,500 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:26,500 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:26,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:45:26,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:45:26,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:45:26,501 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:45:26,502 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 07:45:26,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:26,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:26,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:26,568 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:26,641 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:26,712 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:27,120 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:27,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:27,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:27,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:28,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:28,083 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:31,516 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:31,517 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-09-25 07:45:31,517 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 11 [2020-09-25 07:45:31,517 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-25 07:45:31,517 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:31,517 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:31,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 07:45:31,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 07:45:31,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-09-25 07:45:31,518 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:45:31,536 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 07:45:31,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:31,544 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:31,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:31,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:31,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:31,854 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:31,854 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-25 07:45:31,854 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 07:45:31,855 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 314 [2020-09-25 07:45:31,855 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:31,855 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:31,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 07:45:31,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:45:31,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-25 07:45:31,855 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:45:31,902 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 07:45:31,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:31,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:31,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:31,933 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:31,933 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 07:45:31,933 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 07:45:31,934 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-09-25 07:45:31,934 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:31,934 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:31,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:45:31,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:45:31,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 07:45:31,935 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:45:31,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 07:45:31,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:31,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:31,957 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:31,958 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 07:45:31,958 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:45:31,958 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-25 07:45:31,958 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:31,958 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:31,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 07:45:31,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:45:31,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 07:45:31,959 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:45:31,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-09-25 07:45:31,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:31,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:32,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:32,050 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:32,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:32,269 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:32,270 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-25 07:45:32,270 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 07:45:32,270 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 275 [2020-09-25 07:45:32,270 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:32,271 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:32,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 07:45:32,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 07:45:32,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-25 07:45:32,271 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:45:32,309 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 07:45:32,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:32,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:32,318 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:32,318 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 07:45:32,318 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:45:32,318 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 07:45:32,319 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:32,319 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:32,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:45:32,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:45:32,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 07:45:32,320 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:45:32,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 07:45:32,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:32,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:32,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:32,360 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:32,360 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 07:45:32,361 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 07:45:32,361 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-09-25 07:45:32,361 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:32,361 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:32,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 07:45:32,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:45:32,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 07:45:32,362 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:45:32,388 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 27 proven. 20 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2020-09-25 07:45:32,389 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [591285330] [2020-09-25 07:45:32,389 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 07:45:32,389 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-09-25 07:45:32,390 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2006937368] [2020-09-25 07:45:32,390 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 07:45:32,390 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:45:32,391 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 07:45:32,391 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-25 07:45:32,391 INFO L87 Difference]: Start difference. First operand 62 states and 80 transitions. Second operand 10 states. [2020-09-25 07:45:32,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:45:32,702 INFO L93 Difference]: Finished difference Result 166 states and 262 transitions. [2020-09-25 07:45:32,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 07:45:32,703 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 71 [2020-09-25 07:45:32,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:45:32,705 INFO L225 Difference]: With dead ends: 166 [2020-09-25 07:45:32,706 INFO L226 Difference]: Without dead ends: 110 [2020-09-25 07:45:32,708 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=68, Invalid=238, Unknown=0, NotChecked=0, Total=306 [2020-09-25 07:45:32,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2020-09-25 07:45:32,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 92. [2020-09-25 07:45:32,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 92 states. [2020-09-25 07:45:32,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 125 transitions. [2020-09-25 07:45:32,726 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 125 transitions. Word has length 71 [2020-09-25 07:45:32,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:45:32,727 INFO L479 AbstractCegarLoop]: Abstraction has 92 states and 125 transitions. [2020-09-25 07:45:32,727 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 07:45:32,727 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 125 transitions. [2020-09-25 07:45:32,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2020-09-25 07:45:32,731 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:45:32,731 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:45:32,731 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 07:45:32,732 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:45:32,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:45:32,732 INFO L82 PathProgramCache]: Analyzing trace with hash -606116705, now seen corresponding path program 1 times [2020-09-25 07:45:32,733 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:45:32,733 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1728700586] [2020-09-25 07:45:32,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:45:32,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:32,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:32,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:32,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:32,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:32,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:32,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:33,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:33,897 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:35,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:35,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:35,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:35,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:35,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:35,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:37,745 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:37,745 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-09-25 07:45:37,745 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 14 [2020-09-25 07:45:37,746 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-09-25 07:45:37,746 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:37,746 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:37,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 07:45:37,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-09-25 07:45:37,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-09-25 07:45:37,747 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:45:37,758 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:45:37,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:37,759 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:37,760 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:37,760 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:45:37,760 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:45:37,760 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:45:37,761 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:37,761 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:37,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:45:37,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:45:37,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:45:37,762 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:45:37,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 07:45:37,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:37,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:37,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:37,819 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:37,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:37,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:37,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:37,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:39,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:39,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:39,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:39,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:40,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:40,880 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:41,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:41,236 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:41,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:42,769 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:42,769 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-09-25 07:45:42,769 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 16 [2020-09-25 07:45:42,770 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-25 07:45:42,770 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:42,770 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:42,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 07:45:42,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 07:45:42,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-09-25 07:45:42,770 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:45:42,780 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 07:45:42,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:42,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:42,802 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:42,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:43,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:43,420 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:43,420 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-09-25 07:45:43,420 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 07:45:43,420 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 633 [2020-09-25 07:45:43,421 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:43,421 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:43,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 07:45:43,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:45:43,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-25 07:45:43,421 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:45:43,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 07:45:43,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:43,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:43,456 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:43,456 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 07:45:43,456 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:45:43,456 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-25 07:45:43,456 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:43,457 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:43,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 07:45:43,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:45:43,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 07:45:43,457 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:45:43,487 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 07:45:43,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:43,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:43,496 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:43,561 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:43,561 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 07:45:43,562 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 07:45:43,562 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 71 [2020-09-25 07:45:43,562 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:43,562 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:43,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:45:43,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:45:43,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 07:45:43,563 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:45:43,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 07:45:43,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:43,568 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:43,570 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:43,571 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:45:43,571 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:45:43,571 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:45:43,571 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:43,571 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:43,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:45:43,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:45:43,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:45:43,572 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:45:43,573 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 07:45:43,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:43,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:43,578 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:43,579 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:45:43,579 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:45:43,579 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 07:45:43,579 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:43,580 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:43,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:45:43,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:45:43,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:45:43,580 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:45:43,584 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-09-25 07:45:43,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:43,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:43,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:43,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:43,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:43,671 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:43,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:43,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:44,210 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:44,211 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-25 07:45:44,211 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-25 07:45:44,211 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 622 [2020-09-25 07:45:44,211 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:44,212 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:44,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 07:45:44,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 07:45:44,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-25 07:45:44,212 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:45:44,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 07:45:44,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:44,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:44,313 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:44,314 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 07:45:44,314 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:45:44,314 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 07:45:44,314 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:44,315 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:44,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:45:44,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:45:44,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 07:45:44,315 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:45:44,318 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 07:45:44,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:44,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:44,328 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:44,329 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 07:45:44,329 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:45:44,329 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 07:45:44,329 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:44,330 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:44,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:45:44,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:45:44,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 07:45:44,330 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:45:44,345 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 26 proven. 27 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2020-09-25 07:45:44,346 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1728700586] [2020-09-25 07:45:44,347 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 07:45:44,347 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-09-25 07:45:44,348 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [235425039] [2020-09-25 07:45:44,351 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 07:45:44,351 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:45:44,351 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 07:45:44,352 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2020-09-25 07:45:44,352 INFO L87 Difference]: Start difference. First operand 92 states and 125 transitions. Second operand 10 states. [2020-09-25 07:45:44,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:45:44,757 INFO L93 Difference]: Finished difference Result 223 states and 351 transitions. [2020-09-25 07:45:44,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-25 07:45:44,759 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 87 [2020-09-25 07:45:44,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:45:44,762 INFO L225 Difference]: With dead ends: 223 [2020-09-25 07:45:44,762 INFO L226 Difference]: Without dead ends: 133 [2020-09-25 07:45:44,763 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=233, Unknown=0, NotChecked=0, Total=306 [2020-09-25 07:45:44,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2020-09-25 07:45:44,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 113. [2020-09-25 07:45:44,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 113 states. [2020-09-25 07:45:44,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 155 transitions. [2020-09-25 07:45:44,781 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 155 transitions. Word has length 87 [2020-09-25 07:45:44,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:45:44,782 INFO L479 AbstractCegarLoop]: Abstraction has 113 states and 155 transitions. [2020-09-25 07:45:44,782 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 07:45:44,782 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 155 transitions. [2020-09-25 07:45:44,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2020-09-25 07:45:44,784 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:45:44,784 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:45:44,785 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-25 07:45:44,785 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:45:44,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:45:44,785 INFO L82 PathProgramCache]: Analyzing trace with hash -1750579210, now seen corresponding path program 1 times [2020-09-25 07:45:44,785 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:45:44,786 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1175644432] [2020-09-25 07:45:44,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:45:44,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:44,813 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:44,848 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:44,879 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:44,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:44,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:45,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:45,036 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:46,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:46,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:46,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:47,287 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:47,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:47,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:48,220 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:48,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:49,806 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:49,807 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 175 [2020-09-25 07:45:49,807 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 15 [2020-09-25 07:45:49,807 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-09-25 07:45:49,808 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:49,808 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:49,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 07:45:49,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 07:45:49,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 113 [2020-09-25 07:45:49,808 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:45:49,829 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:45:49,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:49,831 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:49,832 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:49,832 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:45:49,832 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:45:49,833 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:45:49,833 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:49,833 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:49,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:45:49,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:45:49,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:45:49,833 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:45:49,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 07:45:49,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:49,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:49,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:49,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:49,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:49,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:50,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:50,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:50,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:50,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:51,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:54,849 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:54,849 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 161 [2020-09-25 07:45:54,849 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-09-25 07:45:54,849 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-09-25 07:45:54,850 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:54,850 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:54,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 07:45:54,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 46 [2020-09-25 07:45:54,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-25 07:45:54,850 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:45:54,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 07:45:54,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:54,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:54,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:54,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:54,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:55,067 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:55,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:55,185 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:56,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:56,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:56,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:56,613 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:56,685 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:58,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:58,713 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:58,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:59,873 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:59,874 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-09-25 07:45:59,874 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 15 [2020-09-25 07:45:59,874 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-09-25 07:45:59,874 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:59,874 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:59,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 07:45:59,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 40 [2020-09-25 07:45:59,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-25 07:45:59,875 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:45:59,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 07:45:59,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:59,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:59,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:59,926 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:59,926 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 07:45:59,926 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 07:45:59,926 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-09-25 07:45:59,926 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:59,927 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:59,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:45:59,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:45:59,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:45:59,927 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:45:59,929 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 07:45:59,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:59,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:59,933 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:59,934 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:45:59,934 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:45:59,934 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:45:59,934 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:59,934 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:59,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:45:59,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:45:59,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:45:59,935 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:45:59,936 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 07:45:59,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:59,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:59,940 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:59,940 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:45:59,941 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:45:59,941 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:45:59,941 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:59,941 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:59,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:45:59,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:45:59,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:45:59,942 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:45:59,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-09-25 07:45:59,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:59,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:59,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:59,992 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:00,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:00,961 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:46:00,961 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-09-25 07:46:00,961 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 07:46:00,961 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1012 [2020-09-25 07:46:00,962 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:46:00,962 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:46:00,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 07:46:00,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-09-25 07:46:00,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-25 07:46:00,962 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:46:00,998 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 07:46:01,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:46:01,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:01,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:01,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:01,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:01,326 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:46:01,326 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-25 07:46:01,327 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 07:46:01,327 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 324 [2020-09-25 07:46:01,327 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:46:01,328 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:46:01,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 07:46:01,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:46:01,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-25 07:46:01,329 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:46:01,360 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 07:46:01,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:46:01,366 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:01,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking...