/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=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.5 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/recursive-simple/fibo_10-1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 14:29:41,266 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 14:29:41,271 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 14:29:41,313 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 14:29:41,313 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 14:29:41,321 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 14:29:41,323 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 14:29:41,327 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 14:29:41,329 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 14:29:41,332 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 14:29:41,333 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 14:29:41,334 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 14:29:41,335 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 14:29:41,337 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 14:29:41,340 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 14:29:41,341 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 14:29:41,343 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 14:29:41,344 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 14:29:41,346 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 14:29:41,354 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 14:29:41,357 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 14:29:41,358 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 14:29:41,359 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 14:29:41,360 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 14:29:41,362 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 14:29:41,362 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 14:29:41,362 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 14:29:41,368 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 14:29:41,369 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 14:29:41,373 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 14:29:41,373 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 14:29:41,374 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 14:29:41,375 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 14:29:41,376 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 14:29:41,377 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 14:29:41,378 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 14:29:41,379 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 14:29:41,379 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 14:29:41,379 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 14:29:41,380 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 14:29:41,381 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 14:29:41,382 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 14:29:41,426 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 14:29:41,426 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 14:29:41,429 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 14:29:41,429 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 14:29:41,429 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 14:29:41,429 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 14:29:41,430 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 14:29:41,430 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 14:29:41,430 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 14:29:41,430 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 14:29:41,431 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 14:29:41,431 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 14:29:41,432 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 14:29:41,432 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 14:29:41,432 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 14:29:41,432 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 14:29:41,433 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 14:29:41,433 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 14:29:41,433 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 14:29:41,433 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 14:29:41,433 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 14:29:41,434 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 14:29:41,434 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 14:29:41,434 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 14:29:41,434 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 14:29:41,434 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 14:29:41,435 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 14:29:41,435 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 14:29:41,435 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 14:29:41,435 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=SMALLESTAMONGWIDE;tolerance=0.5;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=SMALLESTAMONGWIDE;tolerance=0.5;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=SMALLESTAMONGWIDE;tolerance=0.5;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=SMALLESTAMONGWIDE;tolerance=0.5;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=SMALLESTAMONGWIDE;tolerance=0.5;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=SMALLESTAMONGWIDE;tolerance=0.5;log-additional-information=true; [2020-09-25 14:29:41,873 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 14:29:41,900 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 14:29:41,907 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 14:29:41,909 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 14:29:41,910 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 14:29:41,911 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive-simple/fibo_10-1.c [2020-09-25 14:29:42,001 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a3241a672/60a0c22bc7ad4f458a8101a2d2567ecb/FLAGaba373894 [2020-09-25 14:29:42,506 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 14:29:42,507 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/recursive-simple/fibo_10-1.c [2020-09-25 14:29:42,515 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a3241a672/60a0c22bc7ad4f458a8101a2d2567ecb/FLAGaba373894 [2020-09-25 14:29:42,849 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a3241a672/60a0c22bc7ad4f458a8101a2d2567ecb [2020-09-25 14:29:42,862 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 14:29:42,867 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 14:29:42,869 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 14:29:42,869 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 14:29:42,875 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 14:29:42,876 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:29:42" (1/1) ... [2020-09-25 14:29:42,881 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@25783b52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:29:42, skipping insertion in model container [2020-09-25 14:29:42,881 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:29:42" (1/1) ... [2020-09-25 14:29:42,890 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 14:29:42,913 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 14:29:43,122 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 14:29:43,126 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 14:29:43,142 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 14:29:43,156 INFO L208 MainTranslator]: Completed translation [2020-09-25 14:29:43,157 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:29:43 WrapperNode [2020-09-25 14:29:43,157 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 14:29:43,158 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 14:29:43,158 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 14:29:43,158 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 14:29:43,172 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:29:43" (1/1) ... [2020-09-25 14:29:43,172 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:29:43" (1/1) ... [2020-09-25 14:29:43,178 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:29:43" (1/1) ... [2020-09-25 14:29:43,179 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:29:43" (1/1) ... [2020-09-25 14:29:43,183 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:29:43" (1/1) ... [2020-09-25 14:29:43,186 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:29:43" (1/1) ... [2020-09-25 14:29:43,187 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:29:43" (1/1) ... [2020-09-25 14:29:43,189 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 14:29:43,189 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 14:29:43,190 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 14:29:43,190 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 14:29:43,191 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:29:43" (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 14:29:43,346 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 14:29:43,346 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 14:29:43,346 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo [2020-09-25 14:29:43,346 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 14:29:43,347 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 14:29:43,347 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 14:29:43,347 INFO L130 BoogieDeclarations]: Found specification of procedure fibo [2020-09-25 14:29:43,347 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 14:29:43,347 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 14:29:43,348 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 14:29:43,560 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 14:29:43,560 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-25 14:29:43,565 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:29:43 BoogieIcfgContainer [2020-09-25 14:29:43,565 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 14:29:43,567 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 14:29:43,567 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 14:29:43,571 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 14:29:43,571 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 02:29:42" (1/3) ... [2020-09-25 14:29:43,572 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d4e35f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:29:43, skipping insertion in model container [2020-09-25 14:29:43,572 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:29:43" (2/3) ... [2020-09-25 14:29:43,573 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d4e35f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:29:43, skipping insertion in model container [2020-09-25 14:29:43,573 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:29:43" (3/3) ... [2020-09-25 14:29:43,575 INFO L109 eAbstractionObserver]: Analyzing ICFG fibo_10-1.c [2020-09-25 14:29:43,588 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 14:29:43,598 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 14:29:43,628 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 14:29:43,663 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 14:29:43,663 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 14:29:43,663 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 14:29:43,663 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 14:29:43,664 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 14:29:43,664 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 14:29:43,664 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 14:29:43,664 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 14:29:43,697 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states. [2020-09-25 14:29:43,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-09-25 14:29:43,713 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:29:43,715 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 14:29:43,715 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:29:43,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:29:43,724 INFO L82 PathProgramCache]: Analyzing trace with hash -1756383024, now seen corresponding path program 1 times [2020-09-25 14:29:43,737 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:29:43,737 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [681298511] [2020-09-25 14:29:43,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:29:43,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:29:43,866 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:43,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:44,051 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:29:44,052 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 14:29:44,052 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 14:29:44,052 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 200 [2020-09-25 14:29:44,056 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:29:44,056 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:29:44,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 14:29:44,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-09-25 14:29:44,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 14:29:44,057 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 14:29:44,157 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:29:44,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:29:44,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:44,168 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:29:44,168 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:29:44,168 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:29:44,168 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 14:29:44,170 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:29:44,171 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:29:44,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:29:44,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:29:44,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:29:44,172 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 14:29:44,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 14:29:44,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:29:44,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:44,213 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:29:44,213 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:29:44,213 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:29:44,214 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-25 14:29:44,217 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:29:44,217 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:29:44,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 14:29:44,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:29:44,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 14:29:44,219 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:29:44,251 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 14:29:44,252 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [681298511] [2020-09-25 14:29:44,254 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 14:29:44,254 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 14:29:44,256 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2070744382] [2020-09-25 14:29:44,262 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 14:29:44,262 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:29:44,276 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 14:29:44,277 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-25 14:29:44,279 INFO L87 Difference]: Start difference. First operand 31 states. Second operand 5 states. [2020-09-25 14:29:44,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:29:44,375 INFO L93 Difference]: Finished difference Result 44 states and 50 transitions. [2020-09-25 14:29:44,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 14:29:44,378 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2020-09-25 14:29:44,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:29:44,390 INFO L225 Difference]: With dead ends: 44 [2020-09-25 14:29:44,390 INFO L226 Difference]: Without dead ends: 28 [2020-09-25 14:29:44,395 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 14:29:44,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2020-09-25 14:29:44,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2020-09-25 14:29:44,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2020-09-25 14:29:44,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 32 transitions. [2020-09-25 14:29:44,451 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 32 transitions. Word has length 16 [2020-09-25 14:29:44,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:29:44,451 INFO L479 AbstractCegarLoop]: Abstraction has 28 states and 32 transitions. [2020-09-25 14:29:44,452 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 14:29:44,452 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 32 transitions. [2020-09-25 14:29:44,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-09-25 14:29:44,454 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:29:44,454 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 14:29:44,455 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 14:29:44,455 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:29:44,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:29:44,456 INFO L82 PathProgramCache]: Analyzing trace with hash -389703589, now seen corresponding path program 1 times [2020-09-25 14:29:44,456 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:29:44,456 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [511710397] [2020-09-25 14:29:44,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:29:44,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:29:44,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:44,507 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:44,600 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:29:44,601 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-09-25 14:29:44,601 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 14:29:44,601 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 133 [2020-09-25 14:29:44,602 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:29:44,603 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:29:44,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 14:29:44,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 14:29:44,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 14:29:44,604 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 14:29:44,628 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:29:44,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:29:44,630 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:44,633 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:29:44,633 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:29:44,633 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:29:44,634 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:29:44,635 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:29:44,635 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:29:44,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:29:44,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:29:44,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:29:44,643 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 7 [2020-09-25 14:29:44,647 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 14:29:44,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:29:44,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:44,715 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:29:44,716 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 14:29:44,716 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:29:44,716 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-09-25 14:29:44,716 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:29:44,717 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:29:44,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 14:29:44,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 14:29:44,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 14:29:44,718 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:29:44,749 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 14:29:44,749 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [511710397] [2020-09-25 14:29:44,752 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 14:29:44,752 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 14:29:44,753 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1474650450] [2020-09-25 14:29:44,756 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 14:29:44,756 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:29:44,756 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 14:29:44,758 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-25 14:29:44,758 INFO L87 Difference]: Start difference. First operand 28 states and 32 transitions. Second operand 5 states. [2020-09-25 14:29:44,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:29:44,813 INFO L93 Difference]: Finished difference Result 36 states and 41 transitions. [2020-09-25 14:29:44,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 14:29:44,814 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2020-09-25 14:29:44,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:29:44,815 INFO L225 Difference]: With dead ends: 36 [2020-09-25 14:29:44,815 INFO L226 Difference]: Without dead ends: 30 [2020-09-25 14:29:44,817 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 14:29:44,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-09-25 14:29:44,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 28. [2020-09-25 14:29:44,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2020-09-25 14:29:44,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 32 transitions. [2020-09-25 14:29:44,825 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 32 transitions. Word has length 17 [2020-09-25 14:29:44,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:29:44,826 INFO L479 AbstractCegarLoop]: Abstraction has 28 states and 32 transitions. [2020-09-25 14:29:44,826 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 14:29:44,826 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 32 transitions. [2020-09-25 14:29:44,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-09-25 14:29:44,828 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:29:44,828 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 14:29:44,828 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 14:29:44,829 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:29:44,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:29:44,829 INFO L82 PathProgramCache]: Analyzing trace with hash 50309368, now seen corresponding path program 1 times [2020-09-25 14:29:44,830 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:29:44,830 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1298140868] [2020-09-25 14:29:44,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:29:44,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:29:44,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:44,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:44,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:45,177 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:46,696 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:29:46,697 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-09-25 14:29:46,697 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 14:29:46,698 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1853 [2020-09-25 14:29:46,698 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:29:46,698 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:29:46,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 14:29:46,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 14:29:46,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 14:29:46,699 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:29:46,714 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:29:46,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:29:46,717 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:46,720 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:29:46,720 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:29:46,720 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:29:46,721 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:29:46,721 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:29:46,721 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:29:46,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:29:46,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:29:46,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:29:46,722 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:29:46,725 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 14:29:46,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:29:46,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:46,774 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:46,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:46,942 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:29:46,943 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 14:29:46,943 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 14:29:46,944 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 203 [2020-09-25 14:29:46,944 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:29:46,945 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:29:46,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 14:29:46,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 14:29:46,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 14:29:46,946 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 14:29:46,978 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 14:29:46,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:29:46,983 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:46,993 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:29:46,993 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:29:46,993 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:29:46,994 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 14:29:46,994 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:29:46,994 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:29:46,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:29:46,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:29:46,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 14:29:46,996 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:29:46,999 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 14:29:47,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:29:47,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:47,029 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:29:47,030 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:29:47,030 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:29:47,030 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-25 14:29:47,030 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:29:47,031 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:29:47,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 14:29:47,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:29:47,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 14:29:47,033 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 14:29:47,069 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-09-25 14:29:47,071 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1298140868] [2020-09-25 14:29:47,071 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 14:29:47,072 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-09-25 14:29:47,072 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1720390577] [2020-09-25 14:29:47,074 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 14:29:47,074 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:29:47,075 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 14:29:47,077 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-09-25 14:29:47,077 INFO L87 Difference]: Start difference. First operand 28 states and 32 transitions. Second operand 6 states. [2020-09-25 14:29:47,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:29:47,220 INFO L93 Difference]: Finished difference Result 44 states and 54 transitions. [2020-09-25 14:29:47,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 14:29:47,225 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 33 [2020-09-25 14:29:47,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:29:47,227 INFO L225 Difference]: With dead ends: 44 [2020-09-25 14:29:47,228 INFO L226 Difference]: Without dead ends: 38 [2020-09-25 14:29:47,230 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-09-25 14:29:47,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2020-09-25 14:29:47,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 36. [2020-09-25 14:29:47,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2020-09-25 14:29:47,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 44 transitions. [2020-09-25 14:29:47,254 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 44 transitions. Word has length 33 [2020-09-25 14:29:47,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:29:47,254 INFO L479 AbstractCegarLoop]: Abstraction has 36 states and 44 transitions. [2020-09-25 14:29:47,255 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 14:29:47,256 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 44 transitions. [2020-09-25 14:29:47,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-09-25 14:29:47,261 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:29:47,262 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 14:29:47,262 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 14:29:47,262 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:29:47,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:29:47,263 INFO L82 PathProgramCache]: Analyzing trace with hash 765810174, now seen corresponding path program 1 times [2020-09-25 14:29:47,263 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:29:47,265 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [611211713] [2020-09-25 14:29:47,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:29:47,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:29:47,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:47,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:47,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:47,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:47,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:49,017 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:29:49,018 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-09-25 14:29:49,018 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 14:29:49,019 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1736 [2020-09-25 14:29:49,019 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:29:49,019 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:29:49,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 14:29:49,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-09-25 14:29:49,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 14:29:49,021 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:29:49,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:29:49,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:29:49,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:49,032 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:29:49,033 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:29:49,033 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:29:49,033 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:29:49,034 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:29:49,034 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:29:49,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:29:49,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:29:49,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:29:49,036 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 14:29:49,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 14:29:49,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:29:49,050 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:49,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:49,170 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:29:49,171 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-25 14:29:49,171 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 14:29:49,171 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 125 [2020-09-25 14:29:49,172 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:29:49,172 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:29:49,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 14:29:49,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 14:29:49,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 14:29:49,174 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:29:49,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 14:29:49,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:29:49,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:49,216 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:29:49,216 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 14:29:49,217 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:29:49,217 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-25 14:29:49,217 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:29:49,217 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:29:49,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 14:29:49,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:29:49,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 14:29:49,218 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:29:49,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 14:29:49,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:29:49,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:49,276 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:49,300 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:29:49,301 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 14:29:49,301 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 14:29:49,301 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-09-25 14:29:49,302 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:29:49,302 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:29:49,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 14:29:49,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 14:29:49,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 14:29:49,304 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 14:29:49,342 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 8 proven. 5 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-09-25 14:29:49,344 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [611211713] [2020-09-25 14:29:49,345 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 14:29:49,345 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-25 14:29:49,346 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1688387464] [2020-09-25 14:29:49,348 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 14:29:49,349 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:29:49,349 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 14:29:49,350 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-09-25 14:29:49,352 INFO L87 Difference]: Start difference. First operand 36 states and 44 transitions. Second operand 7 states. [2020-09-25 14:29:49,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:29:49,576 INFO L93 Difference]: Finished difference Result 76 states and 109 transitions. [2020-09-25 14:29:49,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 14:29:49,578 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 35 [2020-09-25 14:29:49,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:29:49,586 INFO L225 Difference]: With dead ends: 76 [2020-09-25 14:29:49,586 INFO L226 Difference]: Without dead ends: 46 [2020-09-25 14:29:49,590 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2020-09-25 14:29:49,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2020-09-25 14:29:49,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 40. [2020-09-25 14:29:49,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2020-09-25 14:29:49,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 51 transitions. [2020-09-25 14:29:49,618 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 51 transitions. Word has length 35 [2020-09-25 14:29:49,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:29:49,619 INFO L479 AbstractCegarLoop]: Abstraction has 40 states and 51 transitions. [2020-09-25 14:29:49,619 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 14:29:49,619 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 51 transitions. [2020-09-25 14:29:49,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-09-25 14:29:49,622 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:29:49,622 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 14:29:49,622 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 14:29:49,622 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:29:49,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:29:49,623 INFO L82 PathProgramCache]: Analyzing trace with hash 1693530075, now seen corresponding path program 1 times [2020-09-25 14:29:49,623 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:29:49,624 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1810077841] [2020-09-25 14:29:49,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:29:49,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:29:49,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:49,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:49,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:49,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:49,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:49,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:50,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:53,276 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:54,638 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:29:54,639 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 68 [2020-09-25 14:29:54,639 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-09-25 14:29:54,639 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-09-25 14:29:54,640 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:29:54,640 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:29:54,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 14:29:54,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 14:29:54,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-09-25 14:29:54,641 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:29:54,659 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:29:54,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:29:54,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:54,662 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:29:54,663 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:29:54,663 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:29:54,663 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 14:29:54,663 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:29:54,664 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:29:54,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:29:54,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:29:54,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:29:54,672 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 8 [2020-09-25 14:29:54,673 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 14:29:54,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:29:54,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:54,700 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:54,723 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:54,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:55,358 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:55,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:55,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:58,369 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:29:58,370 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-09-25 14:29:58,371 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-25 14:29:58,371 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3690 [2020-09-25 14:29:58,372 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:29:58,372 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:29:58,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 14:29:58,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 14:29:58,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-09-25 14:29:58,374 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 14:29:58,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 14:29:58,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:29:58,460 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:58,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:58,534 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:29:58,534 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 14:29:58,534 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 14:29:58,535 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 76 [2020-09-25 14:29:58,535 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:29:58,535 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:29:58,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:29:58,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:29:58,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 14:29:58,536 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:29:58,541 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 14:29:58,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:29:58,544 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:58,547 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:29:58,548 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:29:58,548 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:29:58,549 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 14:29:58,549 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:29:58,549 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:29:58,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:29:58,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:29:58,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:29:58,551 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:29:58,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 14:29:58,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:29:58,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:58,559 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:29:58,560 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:29:58,560 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:29:58,561 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 14:29:58,561 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:29:58,561 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:29:58,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:29:58,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:29:58,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:29:58,563 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 14:29:58,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-09-25 14:29:58,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:29:58,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:58,593 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:29:58,594 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 14:29:58,594 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:29:58,595 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-25 14:29:58,595 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:29:58,596 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:29:58,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 14:29:58,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:29:58,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 14:29:58,597 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 14:29:58,694 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 22 proven. 9 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2020-09-25 14:29:58,695 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1810077841] [2020-09-25 14:29:58,696 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 14:29:58,696 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-25 14:29:58,696 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1280491457] [2020-09-25 14:29:58,697 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 14:29:58,698 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:29:58,698 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 14:29:58,698 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-09-25 14:29:58,699 INFO L87 Difference]: Start difference. First operand 40 states and 51 transitions. Second operand 7 states. [2020-09-25 14:29:58,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:29:58,908 INFO L93 Difference]: Finished difference Result 52 states and 65 transitions. [2020-09-25 14:29:58,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 14:29:58,914 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 51 [2020-09-25 14:29:58,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:29:58,917 INFO L225 Difference]: With dead ends: 52 [2020-09-25 14:29:58,917 INFO L226 Difference]: Without dead ends: 46 [2020-09-25 14:29:58,922 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2020-09-25 14:29:58,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2020-09-25 14:29:58,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 40. [2020-09-25 14:29:58,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2020-09-25 14:29:58,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 51 transitions. [2020-09-25 14:29:58,943 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 51 transitions. Word has length 51 [2020-09-25 14:29:58,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:29:58,946 INFO L479 AbstractCegarLoop]: Abstraction has 40 states and 51 transitions. [2020-09-25 14:29:58,946 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 14:29:58,946 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 51 transitions. [2020-09-25 14:29:58,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2020-09-25 14:29:58,958 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:29:58,958 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 14:29:58,958 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 14:29:58,959 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:29:58,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:29:58,959 INFO L82 PathProgramCache]: Analyzing trace with hash -1086233509, now seen corresponding path program 2 times [2020-09-25 14:29:58,959 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:29:58,960 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1797654531] [2020-09-25 14:29:58,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:29:58,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:29:58,986 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:59,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:59,028 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:59,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:59,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:59,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:01,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:01,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:01,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:01,978 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:02,685 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:02,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:02,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:02,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:03,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:03,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:03,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:03,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:04,003 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:30:04,004 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-09-25 14:30:04,004 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 18 [2020-09-25 14:30:04,004 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5024 [2020-09-25 14:30:04,004 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:30:04,005 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:30:04,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 14:30:04,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 14:30:04,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-09-25 14:30:04,005 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:30:04,021 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:30:04,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:30:04,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:04,024 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:30:04,024 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:30:04,024 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:30:04,025 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 14:30:04,025 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:30:04,025 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:30:04,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:30:04,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:30:04,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:30:04,026 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:30:04,027 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 14:30:04,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:30:04,044 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:04,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:04,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:04,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:04,137 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:04,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:05,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:05,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:05,287 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:05,448 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:05,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:05,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:05,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:09,038 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:30:09,039 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-09-25 14:30:09,039 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 13 [2020-09-25 14:30:09,039 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-25 14:30:09,040 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:30:09,040 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:30:09,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 14:30:09,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 14:30:09,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-09-25 14:30:09,040 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:30:09,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 14:30:09,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:30:09,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:09,081 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:09,110 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:30:09,111 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 14:30:09,111 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 14:30:09,111 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-09-25 14:30:09,111 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:30:09,112 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:30:09,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 14:30:09,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:30:09,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-25 14:30:09,112 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:30:09,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 14:30:09,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:30:09,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:09,155 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:30:09,156 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:30:09,156 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:30:09,156 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 14:30:09,156 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:30:09,157 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:30:09,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 14:30:09,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:30:09,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 14:30:09,157 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:30:09,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 14:30:09,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:30:09,177 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:09,182 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:30:09,183 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:30:09,183 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:30:09,183 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 14:30:09,184 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:30:09,184 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:30:09,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:30:09,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:30:09,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 14:30:09,185 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:30:09,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-09-25 14:30:09,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:30:09,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:09,220 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:09,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:09,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:09,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:09,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:09,610 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:09,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:10,510 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:30:10,510 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-09-25 14:30:10,510 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-09-25 14:30:10,510 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1312 [2020-09-25 14:30:10,510 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:30:10,511 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:30:10,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 14:30:10,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 14:30:10,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-09-25 14:30:10,511 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:30:10,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 14:30:10,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:30:10,559 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:10,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:10,612 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:30:10,613 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 14:30:10,613 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 14:30:10,613 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-09-25 14:30:10,613 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:30:10,613 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:30:10,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:30:10,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:30:10,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 14:30:10,614 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:30:10,617 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 14:30:10,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:30:10,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:10,621 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:30:10,621 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:30:10,621 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:30:10,621 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:30:10,621 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:30:10,622 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:30:10,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:30:10,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:30:10,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:30:10,622 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:30:10,624 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 14:30:10,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:30:10,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:10,628 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:30:10,628 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:30:10,628 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:30:10,628 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:30:10,628 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:30:10,628 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:30:10,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:30:10,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:30:10,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:30:10,629 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:30:10,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-09-25 14:30:10,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:30:10,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:10,640 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:30:10,640 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 14:30:10,640 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:30:10,640 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 14:30:10,641 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:30:10,641 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:30:10,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:30:10,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:30:10,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 14:30:10,642 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:30:10,656 INFO L134 CoverageAnalysis]: Checked inductivity of 202 backedges. 54 proven. 69 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2020-09-25 14:30:10,656 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1797654531] [2020-09-25 14:30:10,656 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 14:30:10,657 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-09-25 14:30:10,657 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [814738068] [2020-09-25 14:30:10,657 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 14:30:10,658 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:30:10,658 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 14:30:10,658 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-09-25 14:30:10,658 INFO L87 Difference]: Start difference. First operand 40 states and 51 transitions. Second operand 9 states. [2020-09-25 14:30:10,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:30:10,841 INFO L93 Difference]: Finished difference Result 92 states and 126 transitions. [2020-09-25 14:30:10,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-25 14:30:10,841 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 85 [2020-09-25 14:30:10,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:30:10,843 INFO L225 Difference]: With dead ends: 92 [2020-09-25 14:30:10,843 INFO L226 Difference]: Without dead ends: 58 [2020-09-25 14:30:10,845 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=111, Unknown=0, NotChecked=0, Total=156 [2020-09-25 14:30:10,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2020-09-25 14:30:10,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 50. [2020-09-25 14:30:10,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2020-09-25 14:30:10,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 59 transitions. [2020-09-25 14:30:10,854 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 59 transitions. Word has length 85 [2020-09-25 14:30:10,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:30:10,855 INFO L479 AbstractCegarLoop]: Abstraction has 50 states and 59 transitions. [2020-09-25 14:30:10,855 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 14:30:10,855 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 59 transitions. [2020-09-25 14:30:10,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2020-09-25 14:30:10,857 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:30:10,857 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 14:30:10,857 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 14:30:10,858 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:30:10,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:30:10,858 INFO L82 PathProgramCache]: Analyzing trace with hash 501566307, now seen corresponding path program 3 times [2020-09-25 14:30:10,858 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:30:10,858 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1903585449] [2020-09-25 14:30:10,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:30:10,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:30:10,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:10,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:10,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:10,950 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:10,985 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:11,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:11,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:11,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:13,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:13,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:15,802 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:15,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:15,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:15,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:15,883 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:30:15,884 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-09-25 14:30:15,884 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 14 [2020-09-25 14:30:15,884 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5016 [2020-09-25 14:30:15,885 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:30:15,885 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:30:15,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 14:30:15,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-09-25 14:30:15,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-09-25 14:30:15,886 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:30:15,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:30:15,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:30:15,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:15,910 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:30:15,910 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:30:15,910 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:30:15,910 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 14:30:15,910 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:30:15,911 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:30:15,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:30:15,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:30:15,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:30:15,912 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:30:15,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 14:30:15,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:30:15,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:15,967 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:16,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:16,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:16,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:16,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:16,666 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:16,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:17,413 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:19,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:20,929 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:30:20,929 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-09-25 14:30:20,930 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-09-25 14:30:20,930 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-25 14:30:20,930 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:30:20,930 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:30:20,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 14:30:20,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 14:30:20,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-09-25 14:30:20,931 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:30:20,944 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 14:30:20,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:30:20,951 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:20,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:21,115 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:30:21,115 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-25 14:30:21,115 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 14:30:21,116 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 167 [2020-09-25 14:30:21,116 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:30:21,116 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:30:21,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 14:30:21,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:30:21,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-25 14:30:21,117 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:30:21,143 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 14:30:21,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:30:21,146 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:21,151 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:30:21,151 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 14:30:21,152 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:30:21,152 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 14:30:21,152 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:30:21,152 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:30:21,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:30:21,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:30:21,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 14:30:21,153 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:30:21,155 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 14:30:21,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:30:21,158 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:21,162 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:30:21,162 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:30:21,163 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:30:21,163 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 14:30:21,163 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:30:21,163 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:30:21,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 14:30:21,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:30:21,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 14:30:21,164 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:30:21,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-25 14:30:21,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:30:21,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:21,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:21,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:21,239 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:21,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:21,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:24,058 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:30:24,059 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-25 14:30:24,059 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 14:30:24,059 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2871 [2020-09-25 14:30:24,059 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:30:24,059 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:30:24,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 14:30:24,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 14:30:24,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-25 14:30:24,060 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:30:24,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 14:30:24,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:30:24,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:24,151 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:30:24,151 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-25 14:30:24,151 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:30:24,152 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-25 14:30:24,152 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:30:24,152 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:30:24,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:30:24,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:30:24,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-25 14:30:24,152 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:30:24,157 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 14:30:24,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:30:24,158 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:24,161 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:30:24,162 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 14:30:24,162 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:30:24,162 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:30:24,162 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:30:24,162 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:30:24,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:30:24,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:30:24,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:30:24,163 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:30:24,165 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 14:30:24,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:30:24,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:24,169 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:30:24,170 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:30:24,170 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:30:24,170 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:30:24,170 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:30:24,170 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:30:24,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:30:24,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:30:24,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:30:24,171 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:30:24,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-25 14:30:24,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:30:24,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:24,183 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:30:24,183 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 14:30:24,183 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:30:24,183 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 14:30:24,183 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:30:24,184 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:30:24,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:30:24,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:30:24,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 14:30:24,185 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:30:24,198 INFO L134 CoverageAnalysis]: Checked inductivity of 211 backedges. 58 proven. 68 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2020-09-25 14:30:24,198 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1903585449] [2020-09-25 14:30:24,199 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 14:30:24,199 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-09-25 14:30:24,199 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1015478936] [2020-09-25 14:30:24,200 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 14:30:24,200 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:30:24,200 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 14:30:24,200 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-09-25 14:30:24,201 INFO L87 Difference]: Start difference. First operand 50 states and 59 transitions. Second operand 10 states. [2020-09-25 14:30:24,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:30:24,537 INFO L93 Difference]: Finished difference Result 106 states and 145 transitions. [2020-09-25 14:30:24,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 14:30:24,538 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 87 [2020-09-25 14:30:24,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:30:24,541 INFO L225 Difference]: With dead ends: 106 [2020-09-25 14:30:24,541 INFO L226 Difference]: Without dead ends: 59 [2020-09-25 14:30:24,543 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=85, Invalid=187, Unknown=0, NotChecked=0, Total=272 [2020-09-25 14:30:24,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2020-09-25 14:30:24,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 53. [2020-09-25 14:30:24,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2020-09-25 14:30:24,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 63 transitions. [2020-09-25 14:30:24,552 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 63 transitions. Word has length 87 [2020-09-25 14:30:24,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:30:24,552 INFO L479 AbstractCegarLoop]: Abstraction has 53 states and 63 transitions. [2020-09-25 14:30:24,553 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 14:30:24,553 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 63 transitions. [2020-09-25 14:30:24,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2020-09-25 14:30:24,554 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:30:24,554 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 11, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 14:30:24,554 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-25 14:30:24,554 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:30:24,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:30:24,555 INFO L82 PathProgramCache]: Analyzing trace with hash 1883941443, now seen corresponding path program 4 times [2020-09-25 14:30:24,555 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:30:24,555 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1839815350] [2020-09-25 14:30:24,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:30:24,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:30:24,578 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:24,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:24,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:24,752 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:24,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:24,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:24,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:25,028 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:25,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:26,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:26,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:29,574 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:30:29,575 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 156 [2020-09-25 14:30:29,575 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 11 [2020-09-25 14:30:29,575 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-09-25 14:30:29,575 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:30:29,575 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:30:29,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 14:30:29,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-09-25 14:30:29,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-09-25 14:30:29,576 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:30:29,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:30:29,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:30:29,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:29,591 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:30:29,591 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:30:29,591 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:30:29,591 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 14:30:29,592 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:30:29,592 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:30:29,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:30:29,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:30:29,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:30:29,592 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:30:29,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 14:30:29,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:30:29,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:29,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:29,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:29,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:32,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:32,067 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:32,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:32,431 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:32,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:34,610 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:30:34,610 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 142 [2020-09-25 14:30:34,610 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-09-25 14:30:34,610 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-09-25 14:30:34,610 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:30:34,611 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:30:34,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 14:30:34,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 66 [2020-09-25 14:30:34,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-09-25 14:30:34,611 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:30:34,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 14:30:34,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:30:34,630 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:34,641 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:30:34,641 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-25 14:30:34,641 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:30:34,641 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 14:30:34,641 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:30:34,641 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:30:34,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:30:34,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:30:34,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:30:34,642 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:30:34,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 14:30:34,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:30:34,648 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:34,654 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:30:34,655 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-25 14:30:34,655 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:30:34,655 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 14:30:34,655 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:30:34,655 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:30:34,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:30:34,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:30:34,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:30:34,656 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:30:34,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 14:30:34,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:30:34,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:34,663 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:30:34,663 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 14:30:34,664 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:30:34,664 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:30:34,664 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:30:34,664 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:30:34,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:30:34,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:30:34,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:30:34,665 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:30:34,669 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 14:30:34,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:30:34,671 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:34,673 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:30:34,674 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:30:34,674 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:30:34,674 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:30:34,674 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:30:34,675 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:30:34,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:30:34,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:30:34,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:30:34,676 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:30:34,677 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-25 14:30:34,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:30:34,680 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:34,684 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:30:34,685 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 14:30:34,685 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:30:34,685 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 14:30:34,685 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:30:34,686 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:30:34,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:30:34,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:30:34,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:30:34,686 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:30:34,689 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-09-25 14:30:34,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:30:34,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:34,726 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:34,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:34,894 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:34,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:37,370 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:30:37,371 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-09-25 14:30:37,371 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 14:30:37,371 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2672 [2020-09-25 14:30:37,371 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:30:37,372 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:30:37,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 14:30:37,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 14:30:37,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-09-25 14:30:37,372 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:30:37,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 14:30:37,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:30:37,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:37,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:37,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:37,507 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:37,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking...