/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=0.2 --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/Fibonacci02.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 11:06:00,138 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 11:06:00,142 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 11:06:00,186 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 11:06:00,187 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 11:06:00,197 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 11:06:00,200 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 11:06:00,204 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 11:06:00,207 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 11:06:00,210 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 11:06:00,211 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 11:06:00,212 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 11:06:00,212 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 11:06:00,216 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 11:06:00,218 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 11:06:00,220 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 11:06:00,222 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 11:06:00,223 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 11:06:00,225 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 11:06:00,235 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 11:06:00,237 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 11:06:00,238 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 11:06:00,239 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 11:06:00,240 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 11:06:00,243 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 11:06:00,243 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 11:06:00,243 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 11:06:00,246 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 11:06:00,247 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 11:06:00,248 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 11:06:00,248 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 11:06:00,249 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 11:06:00,250 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 11:06:00,251 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 11:06:00,252 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 11:06:00,252 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 11:06:00,253 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 11:06:00,253 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 11:06:00,253 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 11:06:00,254 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 11:06:00,256 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 11:06:00,257 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 11:06:00,305 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 11:06:00,305 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 11:06:00,307 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 11:06:00,307 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 11:06:00,308 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 11:06:00,308 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 11:06:00,308 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 11:06:00,308 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 11:06:00,309 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 11:06:00,309 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 11:06:00,310 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 11:06:00,310 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 11:06:00,310 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 11:06:00,311 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 11:06:00,311 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 11:06:00,311 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 11:06:00,311 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 11:06:00,312 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 11:06:00,312 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 11:06:00,312 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 11:06:00,312 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 11:06:00,312 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 11:06:00,313 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 11:06:00,313 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 11:06:00,313 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 11:06:00,313 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 11:06:00,313 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 11:06:00,314 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 11:06:00,314 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 11:06:00,314 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=0.2;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=0.2;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=0.2;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=0.2;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=0.2;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=0.2;log-additional-information=true; [2020-09-25 11:06:00,765 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 11:06:00,790 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 11:06:00,796 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 11:06:00,798 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 11:06:00,798 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 11:06:00,800 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive/Fibonacci02.c [2020-09-25 11:06:00,873 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/91962bb0b/8e94c27982694d3588aca281e371c674/FLAGd838f2f1a [2020-09-25 11:06:01,348 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 11:06:01,349 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/recursive/Fibonacci02.c [2020-09-25 11:06:01,357 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/91962bb0b/8e94c27982694d3588aca281e371c674/FLAGd838f2f1a [2020-09-25 11:06:01,722 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/91962bb0b/8e94c27982694d3588aca281e371c674 [2020-09-25 11:06:01,737 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 11:06:01,743 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 11:06:01,747 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 11:06:01,748 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 11:06:01,752 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 11:06:01,753 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 11:06:01" (1/1) ... [2020-09-25 11:06:01,758 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6fcb8091 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:06:01, skipping insertion in model container [2020-09-25 11:06:01,758 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 11:06:01" (1/1) ... [2020-09-25 11:06:01,769 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 11:06:01,792 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 11:06:02,007 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 11:06:02,013 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 11:06:02,032 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 11:06:02,050 INFO L208 MainTranslator]: Completed translation [2020-09-25 11:06:02,050 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:06:02 WrapperNode [2020-09-25 11:06:02,051 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 11:06:02,051 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 11:06:02,052 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 11:06:02,052 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 11:06:02,070 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:06:02" (1/1) ... [2020-09-25 11:06:02,070 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:06:02" (1/1) ... [2020-09-25 11:06:02,163 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:06:02" (1/1) ... [2020-09-25 11:06:02,163 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:06:02" (1/1) ... [2020-09-25 11:06:02,169 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:06:02" (1/1) ... [2020-09-25 11:06:02,173 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:06:02" (1/1) ... [2020-09-25 11:06:02,174 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:06:02" (1/1) ... [2020-09-25 11:06:02,176 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 11:06:02,176 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 11:06:02,176 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 11:06:02,176 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 11:06:02,177 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:06:02" (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 11:06:02,261 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 11:06:02,262 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 11:06:02,262 INFO L138 BoogieDeclarations]: Found implementation of procedure fibonacci [2020-09-25 11:06:02,263 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 11:06:02,263 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 11:06:02,263 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 11:06:02,264 INFO L130 BoogieDeclarations]: Found specification of procedure fibonacci [2020-09-25 11:06:02,264 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 11:06:02,264 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 11:06:02,264 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 11:06:02,465 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 11:06:02,466 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-25 11:06:02,470 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 11:06:02 BoogieIcfgContainer [2020-09-25 11:06:02,470 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 11:06:02,472 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 11:06:02,472 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 11:06:02,476 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 11:06:02,476 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 11:06:01" (1/3) ... [2020-09-25 11:06:02,477 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e4d715 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 11:06:02, skipping insertion in model container [2020-09-25 11:06:02,477 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:06:02" (2/3) ... [2020-09-25 11:06:02,478 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e4d715 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 11:06:02, skipping insertion in model container [2020-09-25 11:06:02,478 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 11:06:02" (3/3) ... [2020-09-25 11:06:02,480 INFO L109 eAbstractionObserver]: Analyzing ICFG Fibonacci02.c [2020-09-25 11:06:02,491 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 11:06:02,501 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 11:06:02,523 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 11:06:02,554 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 11:06:02,555 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 11:06:02,555 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 11:06:02,555 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 11:06:02,555 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 11:06:02,556 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 11:06:02,556 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 11:06:02,556 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 11:06:02,575 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states. [2020-09-25 11:06:02,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-09-25 11:06:02,582 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 11:06:02,583 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 11:06:02,584 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 11:06:02,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 11:06:02,590 INFO L82 PathProgramCache]: Analyzing trace with hash 2085313281, now seen corresponding path program 1 times [2020-09-25 11:06:02,600 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 11:06:02,600 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1470003814] [2020-09-25 11:06:02,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 11:06:02,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:06:02,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:06:02,770 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:06:02,770 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 11:06:02,770 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:06:02,771 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-09-25 11:06:02,773 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:06:02,773 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:06:02,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 11:06:02,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 11:06:02,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 11:06:02,774 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 11:06:02,829 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 11:06:02,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:06:02,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:06:02,835 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:06:02,835 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 11:06:02,835 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:06:02,836 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 11:06:02,836 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:06:02,836 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:06:02,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:06:02,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:06:02,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:06:02,837 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:06:02,841 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 11:06:02,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:06:02,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:06:02,870 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:06:02,870 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 11:06:02,871 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:06:02,871 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-09-25 11:06:02,871 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:06:02,871 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:06:02,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 11:06:02,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 11:06:02,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 11:06:02,872 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:06:02,919 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 11:06:02,920 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1470003814] [2020-09-25 11:06:02,922 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 11:06:02,923 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 11:06:02,924 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [45365925] [2020-09-25 11:06:02,930 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 11:06:02,930 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 11:06:02,948 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 11:06:02,949 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-25 11:06:02,952 INFO L87 Difference]: Start difference. First operand 31 states. Second operand 5 states. [2020-09-25 11:06:03,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 11:06:03,066 INFO L93 Difference]: Finished difference Result 44 states and 50 transitions. [2020-09-25 11:06:03,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 11:06:03,069 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2020-09-25 11:06:03,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 11:06:03,085 INFO L225 Difference]: With dead ends: 44 [2020-09-25 11:06:03,085 INFO L226 Difference]: Without dead ends: 28 [2020-09-25 11:06:03,090 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 11:06:03,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2020-09-25 11:06:03,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2020-09-25 11:06:03,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2020-09-25 11:06:03,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 32 transitions. [2020-09-25 11:06:03,160 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 32 transitions. Word has length 16 [2020-09-25 11:06:03,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 11:06:03,161 INFO L479 AbstractCegarLoop]: Abstraction has 28 states and 32 transitions. [2020-09-25 11:06:03,161 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 11:06:03,161 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 32 transitions. [2020-09-25 11:06:03,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-09-25 11:06:03,163 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 11:06:03,163 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 11:06:03,164 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 11:06:03,164 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 11:06:03,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 11:06:03,165 INFO L82 PathProgramCache]: Analyzing trace with hash -93144392, now seen corresponding path program 1 times [2020-09-25 11:06:03,165 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 11:06:03,166 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1577783173] [2020-09-25 11:06:03,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 11:06:03,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:06:03,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:06:03,318 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:06:03,323 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-09-25 11:06:03,323 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:06:03,323 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 139 [2020-09-25 11:06:03,324 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:06:03,324 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:06:03,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 11:06:03,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 11:06:03,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 11:06:03,325 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:06:03,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 11:06:03,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:06:03,358 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:06:03,360 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:06:03,360 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 11:06:03,360 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:06:03,361 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 11:06:03,361 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:06:03,361 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:06:03,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:06:03,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:06:03,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:06:03,362 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:06:03,368 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 11:06:03,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:06:03,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:06:03,433 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:06:03,434 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 11:06:03,434 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:06:03,434 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-09-25 11:06:03,435 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:06:03,435 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:06:03,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 11:06:03,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 11:06:03,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 11:06:03,436 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 11:06:03,466 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 11:06:03,466 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1577783173] [2020-09-25 11:06:03,467 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 11:06:03,467 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 11:06:03,467 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [955092149] [2020-09-25 11:06:03,469 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 11:06:03,470 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 11:06:03,470 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 11:06:03,470 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-25 11:06:03,471 INFO L87 Difference]: Start difference. First operand 28 states and 32 transitions. Second operand 5 states. [2020-09-25 11:06:03,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 11:06:03,551 INFO L93 Difference]: Finished difference Result 36 states and 41 transitions. [2020-09-25 11:06:03,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 11:06:03,552 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2020-09-25 11:06:03,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 11:06:03,553 INFO L225 Difference]: With dead ends: 36 [2020-09-25 11:06:03,553 INFO L226 Difference]: Without dead ends: 30 [2020-09-25 11:06:03,555 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 11:06:03,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-09-25 11:06:03,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 28. [2020-09-25 11:06:03,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2020-09-25 11:06:03,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 32 transitions. [2020-09-25 11:06:03,564 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 32 transitions. Word has length 17 [2020-09-25 11:06:03,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 11:06:03,564 INFO L479 AbstractCegarLoop]: Abstraction has 28 states and 32 transitions. [2020-09-25 11:06:03,564 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 11:06:03,565 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 32 transitions. [2020-09-25 11:06:03,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-09-25 11:06:03,566 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 11:06:03,566 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 11:06:03,567 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 11:06:03,567 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 11:06:03,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 11:06:03,567 INFO L82 PathProgramCache]: Analyzing trace with hash 37359445, now seen corresponding path program 1 times [2020-09-25 11:06:03,568 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 11:06:03,568 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1134141828] [2020-09-25 11:06:03,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 11:06:03,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:06:03,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:06:03,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:06:03,648 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:06:04,131 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:06:04,132 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-09-25 11:06:04,132 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 11:06:04,132 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 550 [2020-09-25 11:06:04,134 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:06:04,134 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:06:04,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 11:06:04,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 11:06:04,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 11:06:04,135 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 11:06:04,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 11:06:04,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:06:04,149 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:06:04,150 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:06:04,150 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 11:06:04,150 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:06:04,151 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 11:06:04,151 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:06:04,151 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:06:04,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:06:04,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:06:04,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:06:04,152 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:06:04,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 11:06:04,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:06:04,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:06:04,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:06:04,241 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:06:04,373 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:06:04,373 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 11:06:04,374 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 11:06:04,374 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 213 [2020-09-25 11:06:04,374 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:06:04,374 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:06:04,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 11:06:04,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 11:06:04,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 11:06:04,375 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:06:04,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 11:06:04,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:06:04,402 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:06:04,408 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:06:04,408 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 11:06:04,409 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:06:04,409 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 11:06:04,409 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:06:04,409 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:06:04,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:06:04,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:06:04,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 11:06:04,410 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:06:04,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 11:06:04,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:06:04,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:06:04,425 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:06:04,426 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 11:06:04,426 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:06:04,426 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 11:06:04,426 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:06:04,427 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:06:04,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 11:06:04,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:06:04,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 11:06:04,428 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:06:04,444 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 11:06:04,444 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1134141828] [2020-09-25 11:06:04,445 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 11:06:04,445 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-09-25 11:06:04,445 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2090283315] [2020-09-25 11:06:04,446 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 11:06:04,446 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 11:06:04,446 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 11:06:04,447 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-09-25 11:06:04,447 INFO L87 Difference]: Start difference. First operand 28 states and 32 transitions. Second operand 6 states. [2020-09-25 11:06:04,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 11:06:04,525 INFO L93 Difference]: Finished difference Result 44 states and 54 transitions. [2020-09-25 11:06:04,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 11:06:04,526 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 33 [2020-09-25 11:06:04,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 11:06:04,528 INFO L225 Difference]: With dead ends: 44 [2020-09-25 11:06:04,528 INFO L226 Difference]: Without dead ends: 38 [2020-09-25 11:06:04,529 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 11:06:04,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2020-09-25 11:06:04,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 36. [2020-09-25 11:06:04,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2020-09-25 11:06:04,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 44 transitions. [2020-09-25 11:06:04,540 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 44 transitions. Word has length 33 [2020-09-25 11:06:04,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 11:06:04,540 INFO L479 AbstractCegarLoop]: Abstraction has 36 states and 44 transitions. [2020-09-25 11:06:04,541 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 11:06:04,541 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 44 transitions. [2020-09-25 11:06:04,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-09-25 11:06:04,543 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 11:06:04,543 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 11:06:04,543 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 11:06:04,543 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 11:06:04,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 11:06:04,544 INFO L82 PathProgramCache]: Analyzing trace with hash -878558549, now seen corresponding path program 1 times [2020-09-25 11:06:04,544 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 11:06:04,544 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [438870860] [2020-09-25 11:06:04,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 11:06:04,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:06:04,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:06:04,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:06:04,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:06:04,833 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:06:05,088 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:06:05,089 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-09-25 11:06:05,089 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 11:06:05,089 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 532 [2020-09-25 11:06:05,089 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:06:05,090 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:06:05,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 11:06:05,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 11:06:05,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-25 11:06:05,091 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:06:05,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 11:06:05,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:06:05,109 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:06:05,110 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:06:05,110 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 11:06:05,110 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:06:05,110 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 11:06:05,111 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:06:05,111 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:06:05,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:06:05,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:06:05,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:06:05,112 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:06:05,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 11:06:05,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:06:05,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:06:05,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:06:05,262 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:06:05,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:06:05,579 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:06:05,579 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-25 11:06:05,579 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 11:06:05,580 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 454 [2020-09-25 11:06:05,580 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:06:05,580 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:06:05,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 11:06:05,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 11:06:05,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-25 11:06:05,581 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:06:05,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 11:06:05,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:06:05,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:06:05,639 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:06:05,639 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 11:06:05,639 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:06:05,640 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-09-25 11:06:05,640 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:06:05,640 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:06:05,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 11:06:05,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:06:05,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 11:06:05,641 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:06:05,657 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 11:06:05,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:06:05,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:06:05,674 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:06:05,674 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 11:06:05,675 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:06:05,675 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 11:06:05,675 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:06:05,676 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:06:05,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:06:05,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:06:05,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 11:06:05,677 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:06:05,684 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 9 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-25 11:06:05,686 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [438870860] [2020-09-25 11:06:05,686 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 11:06:05,687 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-09-25 11:06:05,687 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1018937099] [2020-09-25 11:06:05,689 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 11:06:05,690 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 11:06:05,690 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 11:06:05,691 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-09-25 11:06:05,692 INFO L87 Difference]: Start difference. First operand 36 states and 44 transitions. Second operand 6 states. [2020-09-25 11:06:05,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 11:06:05,835 INFO L93 Difference]: Finished difference Result 88 states and 137 transitions. [2020-09-25 11:06:05,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 11:06:05,837 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 35 [2020-09-25 11:06:05,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 11:06:05,845 INFO L225 Difference]: With dead ends: 88 [2020-09-25 11:06:05,845 INFO L226 Difference]: Without dead ends: 58 [2020-09-25 11:06:05,849 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-09-25 11:06:05,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2020-09-25 11:06:05,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 50. [2020-09-25 11:06:05,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2020-09-25 11:06:05,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 69 transitions. [2020-09-25 11:06:05,865 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 69 transitions. Word has length 35 [2020-09-25 11:06:05,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 11:06:05,866 INFO L479 AbstractCegarLoop]: Abstraction has 50 states and 69 transitions. [2020-09-25 11:06:05,866 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 11:06:05,866 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 69 transitions. [2020-09-25 11:06:05,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-09-25 11:06:05,869 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 11:06:05,869 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 11:06:05,869 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 11:06:05,870 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 11:06:05,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 11:06:05,870 INFO L82 PathProgramCache]: Analyzing trace with hash 1945698440, now seen corresponding path program 1 times [2020-09-25 11:06:05,870 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 11:06:05,871 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1010970145] [2020-09-25 11:06:05,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 11:06:05,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:06:05,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:06:05,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:06:05,942 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:06:05,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:06:06,075 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:06:06,220 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:06:06,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:06:10,882 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:06:10,882 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 68 [2020-09-25 11:06:10,882 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-25 11:06:10,883 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-25 11:06:10,883 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:06:10,883 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:06:10,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 11:06:10,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 11:06:10,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-09-25 11:06:10,884 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 11:06:10,898 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 11:06:10,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:06:10,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:06:10,902 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:06:10,903 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 11:06:10,903 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:06:10,903 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 11:06:10,903 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:06:10,903 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:06:10,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:06:10,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:06:10,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:06:10,905 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:06:10,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 11:06:10,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:06:10,920 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:06:10,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:06:10,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:06:11,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:06:11,065 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:06:11,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:06:11,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:06:15,915 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:06:15,915 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-09-25 11:06:15,916 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-25 11:06:15,916 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-09-25 11:06:15,916 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:06:15,917 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:06:15,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 11:06:15,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 11:06:15,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-09-25 11:06:15,918 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:06:15,959 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 11:06:15,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:06:15,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:06:16,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:06:16,050 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:06:16,100 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:06:16,100 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 11:06:16,101 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 11:06:16,101 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 127 [2020-09-25 11:06:16,101 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:06:16,101 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:06:16,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:06:16,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:06:16,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 11:06:16,102 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:06:16,107 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 11:06:16,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:06:16,109 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:06:16,112 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:06:16,113 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 11:06:16,113 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:06:16,113 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 11:06:16,114 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:06:16,114 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:06:16,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:06:16,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:06:16,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:06:16,117 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:06:16,121 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 11:06:16,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:06:16,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:06:16,130 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:06:16,131 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 11:06:16,131 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:06:16,131 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 11:06:16,132 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:06:16,132 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:06:16,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:06:16,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:06:16,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:06:16,134 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:06:16,137 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-09-25 11:06:16,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:06:16,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:06:16,164 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:06:16,164 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 11:06:16,165 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:06:16,165 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-09-25 11:06:16,165 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:06:16,166 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:06:16,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 11:06:16,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:06:16,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 11:06:16,167 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:06:16,202 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 24 proven. 7 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2020-09-25 11:06:16,205 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1010970145] [2020-09-25 11:06:16,205 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 11:06:16,205 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-25 11:06:16,205 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [202040281] [2020-09-25 11:06:16,208 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 11:06:16,208 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 11:06:16,208 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 11:06:16,209 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-09-25 11:06:16,209 INFO L87 Difference]: Start difference. First operand 50 states and 69 transitions. Second operand 7 states. [2020-09-25 11:06:16,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 11:06:16,350 INFO L93 Difference]: Finished difference Result 68 states and 91 transitions. [2020-09-25 11:06:16,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 11:06:16,351 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 51 [2020-09-25 11:06:16,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 11:06:16,353 INFO L225 Difference]: With dead ends: 68 [2020-09-25 11:06:16,353 INFO L226 Difference]: Without dead ends: 62 [2020-09-25 11:06:16,354 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2020-09-25 11:06:16,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2020-09-25 11:06:16,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 50. [2020-09-25 11:06:16,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2020-09-25 11:06:16,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 69 transitions. [2020-09-25 11:06:16,380 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 69 transitions. Word has length 51 [2020-09-25 11:06:16,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 11:06:16,381 INFO L479 AbstractCegarLoop]: Abstraction has 50 states and 69 transitions. [2020-09-25 11:06:16,381 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 11:06:16,381 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 69 transitions. [2020-09-25 11:06:16,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2020-09-25 11:06:16,390 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 11:06:16,390 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 11:06:16,391 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 11:06:16,391 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 11:06:16,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 11:06:16,391 INFO L82 PathProgramCache]: Analyzing trace with hash -92211368, now seen corresponding path program 2 times [2020-09-25 11:06:16,392 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 11:06:16,392 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1328394087] [2020-09-25 11:06:16,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 11:06:16,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:06:16,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:06:16,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:06:16,453 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:06:16,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:06:16,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:06:16,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:06:18,017 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:06:18,646 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:06:19,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:06:19,037 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:06:19,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:06:19,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:06:20,717 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:06:20,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:06:21,144 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:06:21,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:06:21,419 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:06:21,420 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-09-25 11:06:21,420 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 16 [2020-09-25 11:06:21,420 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5012 [2020-09-25 11:06:21,420 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:06:21,421 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:06:21,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 11:06:21,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 11:06:21,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-09-25 11:06:21,421 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:06:21,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 11:06:21,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:06:21,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:06:21,442 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:06:21,443 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 11:06:21,443 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:06:21,443 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 11:06:21,443 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:06:21,443 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:06:21,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:06:21,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:06:21,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:06:21,444 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 11:06:21,445 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 11:06:21,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:06:21,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:06:21,469 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:06:21,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:06:21,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:06:21,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:06:21,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:06:21,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:06:21,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:06:22,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:06:26,453 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:06:26,453 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-09-25 11:06:26,453 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-09-25 11:06:26,453 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-09-25 11:06:26,453 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:06:26,454 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:06:26,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 11:06:26,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 11:06:26,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-09-25 11:06:26,454 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 11:06:26,469 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 11:06:26,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:06:26,476 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:06:26,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:06:26,541 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:06:26,623 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:06:26,623 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 11:06:26,623 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 11:06:26,624 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 149 [2020-09-25 11:06:26,624 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:06:26,624 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:06:26,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 11:06:26,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:06:26,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-25 11:06:26,624 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 11:06:26,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 11:06:26,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:06:26,659 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:06:26,665 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:06:26,665 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 11:06:26,665 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:06:26,665 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 11:06:26,666 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:06:26,666 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:06:26,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:06:26,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:06:26,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 11:06:26,667 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:06:26,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 11:06:26,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:06:26,671 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:06:26,677 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:06:26,677 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 11:06:26,677 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:06:26,677 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 11:06:26,678 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:06:26,678 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:06:26,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 11:06:26,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:06:26,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 11:06:26,679 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:06:26,700 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-09-25 11:06:26,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:06:26,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:06:26,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:06:26,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:06:26,897 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:06:26,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:06:27,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:06:28,516 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:06:28,516 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-09-25 11:06:28,516 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 11:06:28,516 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1809 [2020-09-25 11:06:28,516 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:06:28,517 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:06:28,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 11:06:28,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 11:06:28,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-09-25 11:06:28,517 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 11:06:28,565 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 11:06:28,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:06:28,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:06:28,576 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:06:28,576 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 11:06:28,577 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:06:28,577 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 11:06:28,577 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:06:28,577 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:06:28,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:06:28,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:06:28,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 11:06:28,578 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:06:28,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 11:06:28,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:06:28,592 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:06:28,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:06:28,659 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:06:28,660 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 11:06:28,660 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 11:06:28,660 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 69 [2020-09-25 11:06:28,660 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:06:28,660 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:06:28,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:06:28,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:06:28,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 11:06:28,661 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:06:28,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 11:06:28,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:06:28,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:06:28,670 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:06:28,670 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 11:06:28,670 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:06:28,670 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 11:06:28,670 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:06:28,671 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:06:28,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:06:28,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:06:28,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:06:28,671 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:06:28,673 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 11:06:28,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:06:28,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:06:28,677 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:06:28,678 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 11:06:28,678 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:06:28,678 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 11:06:28,678 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:06:28,679 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:06:28,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:06:28,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:06:28,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:06:28,679 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:06:28,696 INFO L134 CoverageAnalysis]: Checked inductivity of 202 backedges. 57 proven. 64 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2020-09-25 11:06:28,697 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1328394087] [2020-09-25 11:06:28,698 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 11:06:28,698 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-09-25 11:06:28,699 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1057556413] [2020-09-25 11:06:28,700 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 11:06:28,700 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 11:06:28,700 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 11:06:28,701 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-09-25 11:06:28,701 INFO L87 Difference]: Start difference. First operand 50 states and 69 transitions. Second operand 9 states. [2020-09-25 11:06:28,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 11:06:28,967 INFO L93 Difference]: Finished difference Result 117 states and 179 transitions. [2020-09-25 11:06:28,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-25 11:06:28,967 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 85 [2020-09-25 11:06:28,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 11:06:28,970 INFO L225 Difference]: With dead ends: 117 [2020-09-25 11:06:28,970 INFO L226 Difference]: Without dead ends: 66 [2020-09-25 11:06:28,973 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=59, Invalid=151, Unknown=0, NotChecked=0, Total=210 [2020-09-25 11:06:28,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2020-09-25 11:06:28,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 54. [2020-09-25 11:06:28,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-09-25 11:06:28,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 64 transitions. [2020-09-25 11:06:28,983 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 64 transitions. Word has length 85 [2020-09-25 11:06:28,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 11:06:28,984 INFO L479 AbstractCegarLoop]: Abstraction has 54 states and 64 transitions. [2020-09-25 11:06:28,984 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 11:06:28,984 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 64 transitions. [2020-09-25 11:06:28,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2020-09-25 11:06:28,986 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 11:06:28,986 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 11:06:28,986 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 11:06:28,986 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 11:06:28,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 11:06:28,987 INFO L82 PathProgramCache]: Analyzing trace with hash -858055544, now seen corresponding path program 3 times [2020-09-25 11:06:28,987 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 11:06:28,987 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1067394645] [2020-09-25 11:06:28,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 11:06:28,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:06:29,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:06:29,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:06:29,106 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:06:29,221 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:06:29,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:06:29,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:06:29,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:06:29,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:06:30,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:06:31,005 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:06:31,037 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:06:34,008 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:06:34,008 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 156 [2020-09-25 11:06:34,008 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 11 [2020-09-25 11:06:34,009 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-09-25 11:06:34,009 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:06:34,009 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:06:34,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 11:06:34,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-09-25 11:06:34,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-09-25 11:06:34,010 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:06:34,023 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 11:06:34,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:06:34,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:06:34,025 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:06:34,026 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 11:06:34,026 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:06:34,026 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 11:06:34,026 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:06:34,026 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:06:34,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:06:34,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:06:34,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:06:34,027 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 11:06:34,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 11:06:34,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:06:34,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:06:34,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:06:34,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:06:34,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:06:34,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:06:34,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:06:36,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:06:36,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:06:36,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:06:36,237 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:06:37,055 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:06:37,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:06:37,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:06:37,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:06:37,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:06:37,191 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:06:38,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:06:38,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:06:39,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:06:39,057 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:06:39,057 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 142 [2020-09-25 11:06:39,057 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 19 [2020-09-25 11:06:39,057 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5013 [2020-09-25 11:06:39,058 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:06:39,058 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:06:39,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 11:06:39,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 66 [2020-09-25 11:06:39,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-09-25 11:06:39,059 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:06:39,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 11:06:39,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:06:39,075 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:06:39,086 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:06:39,087 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-25 11:06:39,087 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:06:39,087 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 11:06:39,087 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:06:39,087 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:06:39,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:06:39,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:06:39,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:06:39,088 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 11:06:39,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 11:06:39,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:06:39,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:06:39,102 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:06:39,103 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-25 11:06:39,103 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:06:39,103 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 11:06:39,103 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:06:39,103 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:06:39,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:06:39,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:06:39,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:06:39,104 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 11:06:39,107 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 11:06:39,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:06:39,109 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:06:39,112 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:06:39,112 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 11:06:39,112 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:06:39,112 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 11:06:39,113 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:06:39,113 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:06:39,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:06:39,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:06:39,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:06:39,114 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:06:39,115 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 11:06:39,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:06:39,117 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:06:39,119 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:06:39,120 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 11:06:39,120 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:06:39,120 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 11:06:39,120 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:06:39,120 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:06:39,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:06:39,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:06:39,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:06:39,121 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 11:06:39,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-25 11:06:39,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:06:39,124 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:06:39,127 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:06:39,127 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 11:06:39,127 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:06:39,127 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 11:06:39,127 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:06:39,127 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:06:39,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:06:39,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:06:39,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:06:39,128 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 11:06:39,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-09-25 11:06:39,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:06:39,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:06:39,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:06:39,208 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:06:39,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:06:39,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:06:41,342 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:06:41,342 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-09-25 11:06:41,343 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 11:06:41,343 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2204 [2020-09-25 11:06:41,343 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:06:41,343 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:06:41,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 11:06:41,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 11:06:41,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-09-25 11:06:41,344 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 11:06:41,354 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 11:06:41,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:06:41,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:06:41,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:06:41,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:06:41,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:06:41,443 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:06:41,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:06:44,716 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:06:44,716 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-25 11:06:44,716 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 11:06:44,716 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3356 [2020-09-25 11:06:44,717 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:06:44,717 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:06:44,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 11:06:44,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:06:44,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-09-25 11:06:44,718 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:06:44,746 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 11:06:44,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:06:44,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:06:44,770 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:06:44,770 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-25 11:06:44,770 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:06:44,770 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-25 11:06:44,771 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:06:44,771 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:06:44,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:06:44,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:06:44,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-25 11:06:44,772 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:06:44,776 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 11:06:44,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:06:44,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:06:44,779 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:06:44,779 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 11:06:44,779 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:06:44,780 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 11:06:44,780 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:06:44,780 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:06:44,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:06:44,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:06:44,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:06:44,781 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:06:44,782 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 11:06:44,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:06:44,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:06:44,787 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:06:44,787 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 11:06:44,787 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:06:44,788 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 11:06:44,788 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:06:44,788 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:06:44,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:06:44,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:06:44,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:06:44,789 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:06:44,791 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-25 11:06:44,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:06:44,794 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:06:44,803 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:06:44,803 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 11:06:44,803 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:06:44,804 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 11:06:44,804 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:06:44,804 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:06:44,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 11:06:44,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:06:44,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 11:06:44,804 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 11:06:44,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-09-25 11:06:44,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:06:44,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:06:44,847 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:06:44,847 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 11:06:44,848 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:06:44,848 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 11:06:44,848 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:06:44,848 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:06:44,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 11:06:44,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 11:06:44,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 11:06:44,849 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:06:44,883 INFO L134 CoverageAnalysis]: Checked inductivity of 483 backedges. 215 proven. 17 refuted. 0 times theorem prover too weak. 251 trivial. 0 not checked. [2020-09-25 11:06:44,883 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1067394645] [2020-09-25 11:06:44,883 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 11:06:44,883 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-09-25 11:06:44,884 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [882665024] [2020-09-25 11:06:44,884 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 11:06:44,885 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 11:06:44,885 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 11:06:44,885 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-09-25 11:06:44,885 INFO L87 Difference]: Start difference. First operand 54 states and 64 transitions. Second operand 9 states. [2020-09-25 11:06:45,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 11:06:45,050 INFO L93 Difference]: Finished difference Result 99 states and 125 transitions. [2020-09-25 11:06:45,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 11:06:45,051 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 123 [2020-09-25 11:06:45,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 11:06:45,053 INFO L225 Difference]: With dead ends: 99 [2020-09-25 11:06:45,053 INFO L226 Difference]: Without dead ends: 54 [2020-09-25 11:06:45,054 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2020-09-25 11:06:45,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2020-09-25 11:06:45,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2020-09-25 11:06:45,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-09-25 11:06:45,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 62 transitions. [2020-09-25 11:06:45,061 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 62 transitions. Word has length 123 [2020-09-25 11:06:45,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 11:06:45,062 INFO L479 AbstractCegarLoop]: Abstraction has 54 states and 62 transitions. [2020-09-25 11:06:45,062 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 11:06:45,062 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 62 transitions. [2020-09-25 11:06:45,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2020-09-25 11:06:45,063 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 11:06:45,063 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 9, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 11:06:45,063 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-25 11:06:45,064 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 11:06:45,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 11:06:45,064 INFO L82 PathProgramCache]: Analyzing trace with hash 2025522005, now seen corresponding path program 4 times [2020-09-25 11:06:45,064 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 11:06:45,064 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [424638894] [2020-09-25 11:06:45,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 11:06:45,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:06:45,083 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:06:45,106 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:06:45,129 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:06:45,154 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:06:45,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:06:46,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:06:46,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:06:48,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:06:48,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:06:48,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:06:48,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:06:48,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:06:48,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:06:48,948 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:06:48,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:06:49,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:06:49,937 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:06:50,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:06:50,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:06:50,085 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:06:50,085 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 134 [2020-09-25 11:06:50,085 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 19 [2020-09-25 11:06:50,085 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5010 [2020-09-25 11:06:50,086 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:06:50,086 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:06:50,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 11:06:50,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 11:06:50,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-09-25 11:06:50,086 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:06:50,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 11:06:50,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:06:50,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:06:50,104 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:06:50,104 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 11:06:50,104 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:06:50,104 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 11:06:50,105 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:06:50,105 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:06:50,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:06:50,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:06:50,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:06:50,106 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 11:06:50,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 11:06:50,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:06:50,133 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:06:50,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:06:50,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:06:50,237 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:06:50,276 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:06:50,310 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:06:50,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:06:50,453 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:06:51,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:06:51,115 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:06:51,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:06:51,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:06:51,229 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:06:51,253 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:06:51,470 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:06:55,126 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:06:55,126 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-09-25 11:06:55,126 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 15 [2020-09-25 11:06:55,127 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-09-25 11:06:55,127 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:06:55,127 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:06:55,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 11:06:55,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 11:06:55,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 116 [2020-09-25 11:06:55,127 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 11:06:55,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 11:06:55,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:06:55,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:06:55,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:06:55,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking...