/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=0.1 --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/Fibonacci03.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 09:58:41,295 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 09:58:41,300 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 09:58:41,346 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 09:58:41,346 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 09:58:41,350 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 09:58:41,352 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 09:58:41,359 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 09:58:41,361 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 09:58:41,365 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 09:58:41,366 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 09:58:41,367 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 09:58:41,368 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 09:58:41,369 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 09:58:41,370 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 09:58:41,371 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 09:58:41,372 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 09:58:41,373 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 09:58:41,375 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 09:58:41,377 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 09:58:41,379 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 09:58:41,380 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 09:58:41,381 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 09:58:41,382 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 09:58:41,385 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 09:58:41,385 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 09:58:41,385 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 09:58:41,386 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 09:58:41,387 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 09:58:41,388 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 09:58:41,388 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 09:58:41,389 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 09:58:41,390 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 09:58:41,391 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 09:58:41,392 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 09:58:41,392 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 09:58:41,393 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 09:58:41,394 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 09:58:41,394 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 09:58:41,395 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 09:58:41,396 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 09:58:41,397 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 09:58:41,442 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 09:58:41,442 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 09:58:41,444 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 09:58:41,444 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 09:58:41,444 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 09:58:41,445 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 09:58:41,447 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 09:58:41,447 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 09:58:41,447 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 09:58:41,447 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 09:58:41,447 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 09:58:41,449 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 09:58:41,449 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 09:58:41,449 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 09:58:41,449 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 09:58:41,450 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 09:58:41,450 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 09:58:41,450 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 09:58:41,450 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 09:58:41,450 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 09:58:41,451 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 09:58:41,452 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 09:58:41,452 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 09:58:41,452 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 09:58:41,453 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 09:58:41,453 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 09:58:41,453 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 09:58:41,453 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 09:58:41,453 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 09:58:41,454 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=0.1;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=0.1;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=0.1;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=0.1;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=0.1;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=0.1;log-additional-information=true; [2020-09-25 09:58:41,915 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 09:58:41,932 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 09:58:41,937 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 09:58:41,939 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 09:58:41,940 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 09:58:41,941 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive/Fibonacci03.c [2020-09-25 09:58:42,032 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/bf8b1623c/0a884851c9a24d9284d50aaea29f38cd/FLAG678b2094d [2020-09-25 09:58:42,596 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 09:58:42,597 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/recursive/Fibonacci03.c [2020-09-25 09:58:42,606 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/bf8b1623c/0a884851c9a24d9284d50aaea29f38cd/FLAG678b2094d [2020-09-25 09:58:42,931 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/bf8b1623c/0a884851c9a24d9284d50aaea29f38cd [2020-09-25 09:58:42,947 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 09:58:42,956 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 09:58:42,959 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 09:58:42,959 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 09:58:42,964 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 09:58:42,965 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 09:58:42" (1/1) ... [2020-09-25 09:58:42,971 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5cb7919e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:58:42, skipping insertion in model container [2020-09-25 09:58:42,971 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 09:58:42" (1/1) ... [2020-09-25 09:58:42,981 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 09:58:43,011 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 09:58:43,245 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 09:58:43,250 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 09:58:43,270 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 09:58:43,288 INFO L208 MainTranslator]: Completed translation [2020-09-25 09:58:43,289 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:58:43 WrapperNode [2020-09-25 09:58:43,289 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 09:58:43,290 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 09:58:43,290 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 09:58:43,290 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 09:58:43,304 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:58:43" (1/1) ... [2020-09-25 09:58:43,304 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:58:43" (1/1) ... [2020-09-25 09:58:43,310 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:58:43" (1/1) ... [2020-09-25 09:58:43,310 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:58:43" (1/1) ... [2020-09-25 09:58:43,314 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:58:43" (1/1) ... [2020-09-25 09:58:43,316 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:58:43" (1/1) ... [2020-09-25 09:58:43,317 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:58:43" (1/1) ... [2020-09-25 09:58:43,318 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 09:58:43,319 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 09:58:43,319 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 09:58:43,319 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 09:58:43,321 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:58:43" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 09:58:43,494 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 09:58:43,494 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 09:58:43,495 INFO L138 BoogieDeclarations]: Found implementation of procedure fibonacci [2020-09-25 09:58:43,495 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 09:58:43,495 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 09:58:43,495 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 09:58:43,495 INFO L130 BoogieDeclarations]: Found specification of procedure fibonacci [2020-09-25 09:58:43,496 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 09:58:43,496 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 09:58:43,496 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 09:58:43,755 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 09:58:43,755 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-25 09:58:43,770 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 09:58:43 BoogieIcfgContainer [2020-09-25 09:58:43,770 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 09:58:43,774 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 09:58:43,774 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 09:58:43,782 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 09:58:43,783 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 09:58:42" (1/3) ... [2020-09-25 09:58:43,784 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@782c49b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 09:58:43, skipping insertion in model container [2020-09-25 09:58:43,784 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:58:43" (2/3) ... [2020-09-25 09:58:43,784 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@782c49b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 09:58:43, skipping insertion in model container [2020-09-25 09:58:43,785 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 09:58:43" (3/3) ... [2020-09-25 09:58:43,792 INFO L109 eAbstractionObserver]: Analyzing ICFG Fibonacci03.c [2020-09-25 09:58:43,805 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 09:58:43,815 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 09:58:43,839 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 09:58:43,875 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 09:58:43,875 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 09:58:43,875 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 09:58:43,876 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 09:58:43,876 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 09:58:43,876 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 09:58:43,876 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 09:58:43,876 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 09:58:43,899 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states. [2020-09-25 09:58:43,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-09-25 09:58:43,907 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 09:58:43,908 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 09:58:43,909 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 09:58:43,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 09:58:43,915 INFO L82 PathProgramCache]: Analyzing trace with hash -1379859160, now seen corresponding path program 1 times [2020-09-25 09:58:43,925 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 09:58:43,926 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1490229704] [2020-09-25 09:58:43,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 09:58:44,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:58:44,072 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:44,174 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:58:44,175 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-25 09:58:44,175 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:58:44,175 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 123 [2020-09-25 09:58:44,178 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:58:44,179 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:58:44,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 09:58:44,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 09:58:44,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 09:58:44,179 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 09:58:44,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 09:58:44,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:58:44,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:44,266 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:58:44,266 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:58:44,267 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:58:44,267 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 09:58:44,267 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:58:44,268 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:58:44,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:58:44,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:58:44,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:58:44,268 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:58:44,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-25 09:58:44,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:58:44,287 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:44,303 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:58:44,304 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:58:44,304 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:58:44,304 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-25 09:58:44,305 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:58:44,305 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:58:44,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 09:58:44,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:58:44,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 09:58:44,306 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:58:44,369 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 09:58:44,370 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1490229704] [2020-09-25 09:58:44,372 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 09:58:44,373 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 09:58:44,374 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [214608084] [2020-09-25 09:58:44,381 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 09:58:44,381 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 09:58:44,395 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 09:58:44,396 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-25 09:58:44,398 INFO L87 Difference]: Start difference. First operand 35 states. Second operand 5 states. [2020-09-25 09:58:44,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 09:58:44,558 INFO L93 Difference]: Finished difference Result 50 states and 57 transitions. [2020-09-25 09:58:44,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 09:58:44,560 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 19 [2020-09-25 09:58:44,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 09:58:44,575 INFO L225 Difference]: With dead ends: 50 [2020-09-25 09:58:44,576 INFO L226 Difference]: Without dead ends: 31 [2020-09-25 09:58:44,580 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 09:58:44,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2020-09-25 09:58:44,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2020-09-25 09:58:44,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2020-09-25 09:58:44,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 35 transitions. [2020-09-25 09:58:44,641 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 35 transitions. Word has length 19 [2020-09-25 09:58:44,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 09:58:44,642 INFO L479 AbstractCegarLoop]: Abstraction has 31 states and 35 transitions. [2020-09-25 09:58:44,642 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 09:58:44,642 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 35 transitions. [2020-09-25 09:58:44,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-09-25 09:58:44,645 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 09:58:44,645 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 09:58:44,646 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 09:58:44,646 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 09:58:44,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 09:58:44,646 INFO L82 PathProgramCache]: Analyzing trace with hash -2056866127, now seen corresponding path program 1 times [2020-09-25 09:58:44,647 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 09:58:44,647 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1866990302] [2020-09-25 09:58:44,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 09:58:44,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:58:44,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:44,744 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:58:44,745 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-25 09:58:44,745 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:58:44,745 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 84 [2020-09-25 09:58:44,746 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:58:44,746 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:58:44,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 09:58:44,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 09:58:44,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-25 09:58:44,750 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 09:58:44,779 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 09:58:44,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:58:44,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:44,788 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:58:44,788 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:58:44,789 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:58:44,789 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 09:58:44,789 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:58:44,789 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:58:44,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:58:44,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:58:44,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:58:44,792 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 09:58:44,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-25 09:58:44,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:58:44,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:44,860 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:58:44,861 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 09:58:44,861 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:58:44,861 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-09-25 09:58:44,862 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:58:44,862 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:58:44,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 09:58:44,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:58:44,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 09:58:44,863 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:58:44,891 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 09:58:44,891 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1866990302] [2020-09-25 09:58:44,892 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 09:58:44,892 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 09:58:44,892 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1175614960] [2020-09-25 09:58:44,894 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 09:58:44,895 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 09:58:44,895 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 09:58:44,895 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-25 09:58:44,896 INFO L87 Difference]: Start difference. First operand 31 states and 35 transitions. Second operand 5 states. [2020-09-25 09:58:44,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 09:58:44,966 INFO L93 Difference]: Finished difference Result 39 states and 44 transitions. [2020-09-25 09:58:44,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 09:58:44,966 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 20 [2020-09-25 09:58:44,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 09:58:44,968 INFO L225 Difference]: With dead ends: 39 [2020-09-25 09:58:44,968 INFO L226 Difference]: Without dead ends: 33 [2020-09-25 09:58:44,970 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 09:58:44,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2020-09-25 09:58:44,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 31. [2020-09-25 09:58:44,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2020-09-25 09:58:44,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 35 transitions. [2020-09-25 09:58:44,979 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 35 transitions. Word has length 20 [2020-09-25 09:58:44,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 09:58:44,980 INFO L479 AbstractCegarLoop]: Abstraction has 31 states and 35 transitions. [2020-09-25 09:58:44,980 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 09:58:44,980 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 35 transitions. [2020-09-25 09:58:44,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2020-09-25 09:58:44,982 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 09:58:44,983 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, 1, 1, 1] [2020-09-25 09:58:44,983 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 09:58:44,983 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 09:58:44,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 09:58:44,984 INFO L82 PathProgramCache]: Analyzing trace with hash -1274124978, now seen corresponding path program 1 times [2020-09-25 09:58:44,984 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 09:58:44,985 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [250071429] [2020-09-25 09:58:44,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 09:58:44,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:58:45,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:45,109 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:45,280 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:45,622 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:58:45,622 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-09-25 09:58:45,623 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 09:58:45,623 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 621 [2020-09-25 09:58:45,624 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:58:45,624 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:58:45,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 09:58:45,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 09:58:45,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 32 [2020-09-25 09:58:45,625 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 09:58:45,651 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 09:58:45,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:58:45,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:45,660 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:58:45,660 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:58:45,661 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:58:45,661 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 09:58:45,661 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:58:45,661 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:58:45,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:58:45,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:58:45,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:58:45,662 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:58:45,664 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-25 09:58:45,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:58:45,680 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:45,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:45,786 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:58:45,787 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 09:58:45,787 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 09:58:45,787 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 111 [2020-09-25 09:58:45,787 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:58:45,787 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:58:45,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 09:58:45,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:58:45,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-25 09:58:45,788 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:58:45,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 09:58:45,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:58:45,831 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:45,843 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:58:45,843 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:58:45,844 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:58:45,844 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-25 09:58:45,844 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:58:45,845 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:58:45,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 09:58:45,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:58:45,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 09:58:45,846 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:58:45,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 09:58:45,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:58:45,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:45,878 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:58:45,878 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:58:45,879 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:58:45,880 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 09:58:45,883 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:58:45,883 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:58:45,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:58:45,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:58:45,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 09:58:45,884 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:58:45,894 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 7 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-09-25 09:58:45,894 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [250071429] [2020-09-25 09:58:45,894 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 09:58:45,895 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-09-25 09:58:45,896 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1140981709] [2020-09-25 09:58:45,900 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 09:58:45,901 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 09:58:45,902 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 09:58:45,902 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-09-25 09:58:45,903 INFO L87 Difference]: Start difference. First operand 31 states and 35 transitions. Second operand 6 states. [2020-09-25 09:58:46,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 09:58:46,034 INFO L93 Difference]: Finished difference Result 47 states and 57 transitions. [2020-09-25 09:58:46,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 09:58:46,037 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 36 [2020-09-25 09:58:46,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 09:58:46,039 INFO L225 Difference]: With dead ends: 47 [2020-09-25 09:58:46,041 INFO L226 Difference]: Without dead ends: 41 [2020-09-25 09:58:46,042 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 09:58:46,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2020-09-25 09:58:46,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 39. [2020-09-25 09:58:46,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2020-09-25 09:58:46,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 47 transitions. [2020-09-25 09:58:46,064 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 47 transitions. Word has length 36 [2020-09-25 09:58:46,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 09:58:46,065 INFO L479 AbstractCegarLoop]: Abstraction has 39 states and 47 transitions. [2020-09-25 09:58:46,065 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 09:58:46,065 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 47 transitions. [2020-09-25 09:58:46,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-09-25 09:58:46,070 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 09:58:46,071 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 09:58:46,072 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 09:58:46,073 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 09:58:46,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 09:58:46,073 INFO L82 PathProgramCache]: Analyzing trace with hash -2043121517, now seen corresponding path program 1 times [2020-09-25 09:58:46,073 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 09:58:46,075 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [664839724] [2020-09-25 09:58:46,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 09:58:46,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:58:46,099 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:46,119 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:46,578 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:58:46,579 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-09-25 09:58:46,579 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 09:58:46,579 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 488 [2020-09-25 09:58:46,580 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:58:46,580 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:58:46,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 09:58:46,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 09:58:46,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-25 09:58:46,581 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:58:46,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 09:58:46,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:58:46,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:46,603 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:58:46,604 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:58:46,604 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:58:46,604 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 09:58:46,604 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:58:46,605 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:58:46,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:58:46,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:58:46,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:58:46,606 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:58:46,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-25 09:58:46,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:58:46,624 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:46,659 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:46,896 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:58:46,896 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-25 09:58:46,896 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 09:58:46,897 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 276 [2020-09-25 09:58:46,897 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:58:46,898 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:58:46,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 09:58:46,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:58:46,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-25 09:58:46,899 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:58:46,924 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 09:58:46,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:58:46,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:46,953 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:58:46,954 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 09:58:46,954 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:58:46,954 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-09-25 09:58:46,954 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:58:46,955 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:58:46,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 09:58:46,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:58:46,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 09:58:46,956 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:58:46,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 09:58:46,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:58:46,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:46,997 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:58:46,997 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:58:46,997 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:58:46,997 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 09:58:46,998 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:58:46,998 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:58:46,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:58:46,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:58:46,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 09:58:46,999 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:58:47,004 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-25 09:58:47,006 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [664839724] [2020-09-25 09:58:47,006 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 09:58:47,006 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-09-25 09:58:47,007 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1917581851] [2020-09-25 09:58:47,007 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 09:58:47,007 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 09:58:47,008 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 09:58:47,009 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-09-25 09:58:47,009 INFO L87 Difference]: Start difference. First operand 39 states and 47 transitions. Second operand 6 states. [2020-09-25 09:58:47,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 09:58:47,169 INFO L93 Difference]: Finished difference Result 95 states and 141 transitions. [2020-09-25 09:58:47,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 09:58:47,172 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 37 [2020-09-25 09:58:47,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 09:58:47,179 INFO L225 Difference]: With dead ends: 95 [2020-09-25 09:58:47,179 INFO L226 Difference]: Without dead ends: 61 [2020-09-25 09:58:47,181 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 11 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 09:58:47,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2020-09-25 09:58:47,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2020-09-25 09:58:47,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2020-09-25 09:58:47,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 84 transitions. [2020-09-25 09:58:47,214 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 84 transitions. Word has length 37 [2020-09-25 09:58:47,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 09:58:47,215 INFO L479 AbstractCegarLoop]: Abstraction has 61 states and 84 transitions. [2020-09-25 09:58:47,215 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 09:58:47,216 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 84 transitions. [2020-09-25 09:58:47,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-09-25 09:58:47,222 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 09:58:47,222 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 09:58:47,223 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 09:58:47,225 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 09:58:47,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 09:58:47,226 INFO L82 PathProgramCache]: Analyzing trace with hash 1288436502, now seen corresponding path program 2 times [2020-09-25 09:58:47,226 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 09:58:47,226 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [60446509] [2020-09-25 09:58:47,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 09:58:47,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:58:47,242 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:47,260 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:47,320 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:47,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:47,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:48,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:48,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:50,892 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:58:50,892 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-09-25 09:58:50,892 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-25 09:58:50,893 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3655 [2020-09-25 09:58:50,893 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:58:50,893 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:58:50,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 09:58:50,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 09:58:50,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-09-25 09:58:50,894 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:58:50,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 09:58:50,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:58:50,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:50,917 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:58:50,917 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:58:50,918 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:58:50,918 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 09:58:50,918 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:58:50,919 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:58:50,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:58:50,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:58:50,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:58:50,920 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:58:50,921 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-25 09:58:50,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:58:50,939 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:50,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:51,001 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:51,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:51,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:51,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:52,445 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:58:52,446 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 53 [2020-09-25 09:58:52,446 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 09:58:52,446 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1512 [2020-09-25 09:58:52,447 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:58:52,447 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:58:52,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 09:58:52,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:58:52,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-09-25 09:58:52,448 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:58:52,470 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 09:58:52,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:58:52,477 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:52,483 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:52,568 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:58:52,568 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 09:58:52,568 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 09:58:52,569 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 93 [2020-09-25 09:58:52,569 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:58:52,569 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:58:52,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:58:52,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:58:52,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 09:58:52,570 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:58:52,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 09:58:52,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:58:52,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:52,579 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:58:52,580 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:58:52,580 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:58:52,580 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 09:58:52,581 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:58:52,581 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:58:52,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:58:52,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:58:52,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:58:52,582 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:58:52,583 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 09:58:52,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:58:52,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:52,589 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:58:52,589 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:58:52,589 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:58:52,590 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 09:58:52,590 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:58:52,590 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:58:52,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:58:52,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:58:52,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:58:52,591 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:58:52,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-09-25 09:58:52,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:58:52,597 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:52,602 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:58:52,602 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:58:52,603 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:58:52,603 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 09:58:52,603 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:58:52,603 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:58:52,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 09:58:52,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:58:52,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 09:58:52,604 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:58:52,627 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 23 proven. 7 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2020-09-25 09:58:52,628 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [60446509] [2020-09-25 09:58:52,628 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 09:58:52,628 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-09-25 09:58:52,628 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [78893544] [2020-09-25 09:58:52,629 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 09:58:52,629 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 09:58:52,629 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 09:58:52,629 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-09-25 09:58:52,630 INFO L87 Difference]: Start difference. First operand 61 states and 84 transitions. Second operand 6 states. [2020-09-25 09:58:52,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 09:58:52,732 INFO L93 Difference]: Finished difference Result 133 states and 196 transitions. [2020-09-25 09:58:52,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 09:58:52,736 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 53 [2020-09-25 09:58:52,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 09:58:52,743 INFO L225 Difference]: With dead ends: 133 [2020-09-25 09:58:52,743 INFO L226 Difference]: Without dead ends: 77 [2020-09-25 09:58:52,747 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 14 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 09:58:52,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2020-09-25 09:58:52,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 63. [2020-09-25 09:58:52,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2020-09-25 09:58:52,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 80 transitions. [2020-09-25 09:58:52,761 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 80 transitions. Word has length 53 [2020-09-25 09:58:52,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 09:58:52,762 INFO L479 AbstractCegarLoop]: Abstraction has 63 states and 80 transitions. [2020-09-25 09:58:52,762 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 09:58:52,762 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 80 transitions. [2020-09-25 09:58:52,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-09-25 09:58:52,764 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 09:58:52,764 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, 1, 1, 1] [2020-09-25 09:58:52,765 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 09:58:52,765 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 09:58:52,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 09:58:52,765 INFO L82 PathProgramCache]: Analyzing trace with hash -494889179, now seen corresponding path program 2 times [2020-09-25 09:58:52,766 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 09:58:52,766 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [942846438] [2020-09-25 09:58:52,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 09:58:52,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:58:52,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:52,793 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:52,816 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:52,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:53,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:53,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:54,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:57,099 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:58:57,100 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-09-25 09:58:57,100 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-25 09:58:57,100 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4323 [2020-09-25 09:58:57,100 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:58:57,100 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:58:57,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 09:58:57,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 09:58:57,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-09-25 09:58:57,101 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:58:57,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 09:58:57,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:58:57,115 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:57,115 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:58:57,116 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:58:57,116 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:58:57,116 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 09:58:57,116 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:58:57,116 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:58:57,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:58:57,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:58:57,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:58:57,117 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:58:57,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-25 09:58:57,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:58:57,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:57,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:57,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:57,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:57,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:57,674 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:58,816 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:00,459 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:59:00,459 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-09-25 09:59:00,460 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-25 09:59:00,460 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3336 [2020-09-25 09:59:00,460 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:59:00,460 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:59:00,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 09:59:00,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:59:00,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-25 09:59:00,461 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 09:59:00,487 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 09:59:00,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:59:00,493 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:00,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:00,551 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:59:00,552 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 09:59:00,552 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 09:59:00,552 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-09-25 09:59:00,552 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:59:00,553 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:59:00,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:59:00,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:59:00,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 09:59:00,553 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:59:00,558 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 09:59:00,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:59:00,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:00,563 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:59:00,563 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:59:00,563 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:59:00,564 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 09:59:00,564 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:59:00,564 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:59:00,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:59:00,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:59:00,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:59:00,565 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:59:00,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 09:59:00,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:59:00,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:00,571 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:59:00,572 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:59:00,572 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:59:00,572 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 09:59:00,572 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:59:00,573 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:59:00,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:59:00,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:59:00,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:59:00,573 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:59:00,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-09-25 09:59:00,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:59:00,579 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:00,594 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:59:00,595 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 09:59:00,595 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:59:00,595 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-25 09:59:00,595 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:59:00,596 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:59:00,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 09:59:00,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:59:00,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 09:59:00,597 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:59:00,614 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 22 proven. 7 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2020-09-25 09:59:00,615 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [942846438] [2020-09-25 09:59:00,615 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 09:59:00,615 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-09-25 09:59:00,616 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1566239717] [2020-09-25 09:59:00,616 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 09:59:00,616 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 09:59:00,617 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 09:59:00,617 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-09-25 09:59:00,617 INFO L87 Difference]: Start difference. First operand 63 states and 80 transitions. Second operand 6 states. [2020-09-25 09:59:00,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 09:59:00,736 INFO L93 Difference]: Finished difference Result 77 states and 95 transitions. [2020-09-25 09:59:00,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 09:59:00,737 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 54 [2020-09-25 09:59:00,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 09:59:00,739 INFO L225 Difference]: With dead ends: 77 [2020-09-25 09:59:00,739 INFO L226 Difference]: Without dead ends: 71 [2020-09-25 09:59:00,740 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 14 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 09:59:00,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2020-09-25 09:59:00,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 63. [2020-09-25 09:59:00,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2020-09-25 09:59:00,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 80 transitions. [2020-09-25 09:59:00,752 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 80 transitions. Word has length 54 [2020-09-25 09:59:00,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 09:59:00,765 INFO L479 AbstractCegarLoop]: Abstraction has 63 states and 80 transitions. [2020-09-25 09:59:00,765 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 09:59:00,765 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 80 transitions. [2020-09-25 09:59:00,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2020-09-25 09:59:00,768 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 09:59:00,768 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, 1, 1, 1] [2020-09-25 09:59:00,768 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 09:59:00,772 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 09:59:00,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 09:59:00,772 INFO L82 PathProgramCache]: Analyzing trace with hash -339463207, now seen corresponding path program 3 times [2020-09-25 09:59:00,773 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 09:59:00,773 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1873703443] [2020-09-25 09:59:00,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 09:59:00,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:59:00,793 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:00,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:00,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:00,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:00,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:01,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:01,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:01,629 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:04,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:04,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:04,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:04,985 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:05,790 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:59:05,790 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-09-25 09:59:05,791 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 12 [2020-09-25 09:59:05,791 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-09-25 09:59:05,791 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:59:05,791 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:59:05,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 09:59:05,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-09-25 09:59:05,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-09-25 09:59:05,792 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:59:05,804 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 09:59:05,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:59:05,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:05,806 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:59:05,806 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:59:05,807 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:59:05,807 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 09:59:05,807 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:59:05,807 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:59:05,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:59:05,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:59:05,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:59:05,808 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 09:59:05,809 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-25 09:59:05,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:59:05,819 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:05,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:05,855 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:05,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:05,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:05,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:06,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:07,022 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:08,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:08,772 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:08,943 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:09,048 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:09,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:10,818 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:59:10,819 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-09-25 09:59:10,819 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 13 [2020-09-25 09:59:10,819 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-09-25 09:59:10,819 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:59:10,819 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:59:10,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 09:59:10,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 09:59:10,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-09-25 09:59:10,820 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:59:10,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 09:59:10,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:59:10,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:10,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:10,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:10,979 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:59:10,979 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 09:59:10,980 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 09:59:10,980 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 138 [2020-09-25 09:59:10,980 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:59:10,980 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:59:10,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 09:59:10,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:59:10,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-25 09:59:10,981 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:59:11,005 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 09:59:11,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:59:11,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:11,014 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:59:11,015 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:59:11,015 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:59:11,015 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 09:59:11,015 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:59:11,016 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:59:11,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 09:59:11,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:59:11,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 09:59:11,016 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:59:11,026 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 09:59:11,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:59:11,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:11,037 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:59:11,038 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:59:11,038 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:59:11,038 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 09:59:11,038 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:59:11,039 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:59:11,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:59:11,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:59:11,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 09:59:11,039 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:59:11,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-09-25 09:59:11,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:59:11,050 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:11,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:11,091 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:11,129 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:11,398 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:11,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:11,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:11,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:13,118 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:59:13,118 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-09-25 09:59:13,119 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-09-25 09:59:13,119 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2071 [2020-09-25 09:59:13,119 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:59:13,119 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:59:13,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 09:59:13,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 09:59:13,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-09-25 09:59:13,120 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 09:59:13,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 09:59:13,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:59:13,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:13,229 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:13,261 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:59:13,261 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 09:59:13,261 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 09:59:13,261 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 67 [2020-09-25 09:59:13,262 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:59:13,262 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:59:13,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:59:13,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:59:13,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 09:59:13,263 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:59:13,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 09:59:13,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:59:13,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:13,270 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:59:13,270 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:59:13,270 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:59:13,270 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 09:59:13,271 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:59:13,271 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:59:13,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:59:13,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:59:13,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:59:13,271 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 09:59:13,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 09:59:13,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:59:13,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:13,277 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:59:13,277 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:59:13,278 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:59:13,278 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 09:59:13,278 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:59:13,278 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:59:13,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:59:13,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:59:13,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:59:13,279 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:59:13,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-09-25 09:59:13,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:59:13,285 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:13,291 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:59:13,291 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 09:59:13,292 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:59:13,292 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 09:59:13,292 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:59:13,292 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:59:13,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:59:13,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:59:13,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 09:59:13,293 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 09:59:13,310 INFO L134 CoverageAnalysis]: Checked inductivity of 202 backedges. 57 proven. 66 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2020-09-25 09:59:13,311 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1873703443] [2020-09-25 09:59:13,311 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 09:59:13,311 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-09-25 09:59:13,311 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [311899098] [2020-09-25 09:59:13,312 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 09:59:13,312 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 09:59:13,313 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 09:59:13,313 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-09-25 09:59:13,313 INFO L87 Difference]: Start difference. First operand 63 states and 80 transitions. Second operand 9 states. [2020-09-25 09:59:13,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 09:59:13,505 INFO L93 Difference]: Finished difference Result 104 states and 139 transitions. [2020-09-25 09:59:13,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-25 09:59:13,506 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 88 [2020-09-25 09:59:13,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 09:59:13,508 INFO L225 Difference]: With dead ends: 104 [2020-09-25 09:59:13,508 INFO L226 Difference]: Without dead ends: 49 [2020-09-25 09:59:13,509 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=55, Invalid=127, Unknown=0, NotChecked=0, Total=182 [2020-09-25 09:59:13,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2020-09-25 09:59:13,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 43. [2020-09-25 09:59:13,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2020-09-25 09:59:13,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 49 transitions. [2020-09-25 09:59:13,516 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 49 transitions. Word has length 88 [2020-09-25 09:59:13,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 09:59:13,516 INFO L479 AbstractCegarLoop]: Abstraction has 43 states and 49 transitions. [2020-09-25 09:59:13,516 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 09:59:13,516 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 49 transitions. [2020-09-25 09:59:13,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2020-09-25 09:59:13,517 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 09:59:13,518 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 09:59:13,518 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-25 09:59:13,518 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 09:59:13,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 09:59:13,519 INFO L82 PathProgramCache]: Analyzing trace with hash -778718797, now seen corresponding path program 4 times [2020-09-25 09:59:13,519 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 09:59:13,519 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [582901543] [2020-09-25 09:59:13,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 09:59:13,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:59:13,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:13,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:13,610 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:13,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:13,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:13,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:13,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:15,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:18,532 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:59:18,533 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 115 [2020-09-25 09:59:18,533 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-09-25 09:59:18,533 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-09-25 09:59:18,533 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:59:18,533 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:59:18,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 09:59:18,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-09-25 09:59:18,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-09-25 09:59:18,534 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 09:59:18,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 09:59:18,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:59:18,548 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:18,549 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:59:18,549 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:59:18,549 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:59:18,550 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 09:59:18,550 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:59:18,550 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:59:18,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:59:18,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:59:18,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:59:18,551 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 09:59:18,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-25 09:59:18,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:59:18,567 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:18,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:18,629 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:18,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:18,939 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:18,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:18,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:19,285 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:19,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:19,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:19,562 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:21,949 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:21,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:21,986 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:22,060 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:23,561 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:59:23,561 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-09-25 09:59:23,562 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 15 [2020-09-25 09:59:23,562 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-09-25 09:59:23,562 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:59:23,562 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:59:23,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 09:59:23,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 09:59:23,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-09-25 09:59:23,563 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 09:59:23,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 09:59:23,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:59:23,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:23,592 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:23,755 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:59:23,755 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-25 09:59:23,755 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 09:59:23,755 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 176 [2020-09-25 09:59:23,756 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:59:23,756 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:59:23,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 09:59:23,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:59:23,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-25 09:59:23,756 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 09:59:23,771 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 09:59:23,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:59:23,774 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:23,777 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:59:23,777 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 09:59:23,777 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:59:23,777 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 09:59:23,778 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:59:23,778 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:59:23,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:59:23,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:59:23,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 09:59:23,779 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 09:59:23,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 09:59:23,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:59:23,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:23,787 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:59:23,788 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:59:23,788 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:59:23,788 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 09:59:23,788 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:59:23,789 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:59:23,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 09:59:23,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:59:23,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 09:59:23,789 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:59:23,801 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-25 09:59:23,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:59:23,812 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:23,831 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:23,844 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:23,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:23,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:23,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:26,000 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:59:26,000 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-25 09:59:26,001 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 09:59:26,001 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2194 [2020-09-25 09:59:26,001 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:59:26,001 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:59:26,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 09:59:26,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 09:59:26,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-25 09:59:26,002 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 09:59:26,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 09:59:26,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:59:26,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:26,101 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:59:26,101 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-25 09:59:26,101 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:59:26,102 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-25 09:59:26,102 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:59:26,102 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:59:26,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:59:26,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:59:26,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-25 09:59:26,103 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:59:26,119 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 09:59:26,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:59:26,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:26,125 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:59:26,125 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 09:59:26,125 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:59:26,125 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 09:59:26,126 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:59:26,126 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:59:26,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:59:26,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:59:26,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:59:26,127 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:59:26,129 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 09:59:26,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:59:26,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:26,132 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:59:26,132 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:59:26,133 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:59:26,133 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 09:59:26,133 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:59:26,133 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:59:26,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:59:26,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:59:26,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:59:26,134 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:59:26,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-25 09:59:26,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:59:26,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:26,145 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:59:26,146 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 09:59:26,146 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:59:26,146 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 09:59:26,146 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:59:26,146 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:59:26,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:59:26,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:59:26,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 09:59:26,147 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:59:26,161 INFO L134 CoverageAnalysis]: Checked inductivity of 211 backedges. 58 proven. 67 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2020-09-25 09:59:26,161 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [582901543] [2020-09-25 09:59:26,161 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 09:59:26,161 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-09-25 09:59:26,162 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1297661215] [2020-09-25 09:59:26,162 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 09:59:26,162 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 09:59:26,163 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 09:59:26,163 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-09-25 09:59:26,163 INFO L87 Difference]: Start difference. First operand 43 states and 49 transitions. Second operand 9 states. [2020-09-25 09:59:26,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 09:59:26,521 INFO L93 Difference]: Finished difference Result 99 states and 129 transitions. [2020-09-25 09:59:26,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 09:59:26,524 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 90 [2020-09-25 09:59:26,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 09:59:26,526 INFO L225 Difference]: With dead ends: 99 [2020-09-25 09:59:26,526 INFO L226 Difference]: Without dead ends: 60 [2020-09-25 09:59:26,529 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=85, Invalid=187, Unknown=0, NotChecked=0, Total=272 [2020-09-25 09:59:26,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2020-09-25 09:59:26,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 54. [2020-09-25 09:59:26,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-09-25 09:59:26,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 64 transitions. [2020-09-25 09:59:26,549 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 64 transitions. Word has length 90 [2020-09-25 09:59:26,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 09:59:26,549 INFO L479 AbstractCegarLoop]: Abstraction has 54 states and 64 transitions. [2020-09-25 09:59:26,549 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 09:59:26,549 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 64 transitions. [2020-09-25 09:59:26,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2020-09-25 09:59:26,551 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 09:59:26,551 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, 1, 1, 1] [2020-09-25 09:59:26,551 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-25 09:59:26,551 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 09:59:26,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 09:59:26,554 INFO L82 PathProgramCache]: Analyzing trace with hash 237402259, now seen corresponding path program 5 times [2020-09-25 09:59:26,555 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 09:59:26,555 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [957863948] [2020-09-25 09:59:26,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 09:59:26,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:59:26,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:26,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:26,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:26,707 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:28,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:28,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:29,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:29,083 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:29,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:31,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:31,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:31,575 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:59:31,576 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 159 [2020-09-25 09:59:31,576 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 11 [2020-09-25 09:59:31,576 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-09-25 09:59:31,576 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:59:31,576 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:59:31,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 09:59:31,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-09-25 09:59:31,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 116 [2020-09-25 09:59:31,577 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 09:59:31,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 09:59:31,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:59:31,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:31,590 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:59:31,591 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:59:31,591 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:59:31,591 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 09:59:31,591 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:59:31,591 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:59:31,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:59:31,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:59:31,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:59:31,592 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 09:59:31,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-25 09:59:31,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:59:31,620 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:31,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:31,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:31,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:31,818 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:31,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:32,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:32,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:33,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:33,154 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:33,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking...