/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/Fibonacci04.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 09:58:41,828 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 09:58:41,832 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 09:58:41,876 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 09:58:41,876 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 09:58:41,884 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 09:58:41,886 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 09:58:41,890 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 09:58:41,893 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 09:58:41,896 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 09:58:41,897 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 09:58:41,898 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 09:58:41,898 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 09:58:41,901 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 09:58:41,904 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 09:58:41,906 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 09:58:41,908 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 09:58:41,909 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 09:58:41,911 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 09:58:41,919 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 09:58:41,921 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 09:58:41,922 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 09:58:41,923 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 09:58:41,924 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 09:58:41,941 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 09:58:41,941 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 09:58:41,941 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 09:58:41,942 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 09:58:41,943 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 09:58:41,946 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 09:58:41,946 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 09:58:41,947 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 09:58:41,948 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 09:58:41,949 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 09:58:41,952 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 09:58:41,952 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 09:58:41,954 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 09:58:41,954 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 09:58:41,954 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 09:58:41,955 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 09:58:41,956 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 09:58:41,957 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 09:58:41,982 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 09:58:41,982 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 09:58:41,983 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 09:58:41,984 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 09:58:41,984 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 09:58:41,984 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 09:58:41,984 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 09:58:41,985 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 09:58:41,985 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 09:58:41,985 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 09:58:41,985 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 09:58:41,986 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 09:58:41,986 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 09:58:41,986 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 09:58:41,986 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 09:58:41,986 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 09:58:41,986 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 09:58:41,987 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 09:58:41,987 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 09:58:41,987 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 09:58:41,987 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 09:58:41,988 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 09:58:41,988 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 09:58:41,988 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 09:58:41,988 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 09:58:41,989 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 09:58:41,989 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 09:58:41,989 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 09:58:41,989 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 09:58:41,989 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 09:58:42,456 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 09:58:42,478 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 09:58:42,483 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 09:58:42,484 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 09:58:42,485 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 09:58:42,486 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive/Fibonacci04.c [2020-09-25 09:58:42,573 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/457f87a02/7835176298d84d83b82dc5e7f13b56d0/FLAG6a85c22f1 [2020-09-25 09:58:43,088 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 09:58:43,089 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/recursive/Fibonacci04.c [2020-09-25 09:58:43,097 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/457f87a02/7835176298d84d83b82dc5e7f13b56d0/FLAG6a85c22f1 [2020-09-25 09:58:43,435 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/457f87a02/7835176298d84d83b82dc5e7f13b56d0 [2020-09-25 09:58:43,450 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 09:58:43,457 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 09:58:43,461 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 09:58:43,461 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 09:58:43,466 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 09:58:43,467 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 09:58:43" (1/1) ... [2020-09-25 09:58:43,472 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 09:58:43, skipping insertion in model container [2020-09-25 09:58:43,473 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 09:58:43" (1/1) ... [2020-09-25 09:58:43,482 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 09:58:43,509 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 09:58:43,819 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 09:58:43,827 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 09:58:43,851 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 09:58:43,871 INFO L208 MainTranslator]: Completed translation [2020-09-25 09:58:43,873 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:58:43 WrapperNode [2020-09-25 09:58:43,873 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 09:58:43,874 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 09:58:43,874 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 09:58:43,874 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 09:58:43,892 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 09:58:43,894 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 09:58:43,901 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 09:58:43,901 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 09:58:43,990 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 09:58:43,995 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 09:58:43,996 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 09:58:43,999 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 09:58:43,999 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 09:58:43,999 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 09:58:44,000 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 09:58:44,001 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 09:58:44,076 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 09:58:44,076 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 09:58:44,076 INFO L138 BoogieDeclarations]: Found implementation of procedure fibonacci [2020-09-25 09:58:44,077 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 09:58:44,077 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 09:58:44,077 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 09:58:44,077 INFO L130 BoogieDeclarations]: Found specification of procedure fibonacci [2020-09-25 09:58:44,077 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 09:58:44,078 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 09:58:44,078 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 09:58:44,283 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 09:58:44,284 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-25 09:58:44,289 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 09:58:44 BoogieIcfgContainer [2020-09-25 09:58:44,289 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 09:58:44,291 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 09:58:44,291 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 09:58:44,294 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 09:58:44,295 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 09:58:43" (1/3) ... [2020-09-25 09:58:44,296 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22f1e7ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 09:58:44, skipping insertion in model container [2020-09-25 09:58:44,296 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 09:58:44,296 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22f1e7ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 09:58:44, skipping insertion in model container [2020-09-25 09:58:44,296 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 09:58:44" (3/3) ... [2020-09-25 09:58:44,299 INFO L109 eAbstractionObserver]: Analyzing ICFG Fibonacci04.c [2020-09-25 09:58:44,311 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 09:58:44,320 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 09:58:44,360 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 09:58:44,421 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 09:58:44,421 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 09:58:44,421 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 09:58:44,421 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 09:58:44,422 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 09:58:44,422 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 09:58:44,422 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 09:58:44,422 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 09:58:44,454 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states. [2020-09-25 09:58:44,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-09-25 09:58:44,461 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 09:58:44,462 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 09:58:44,462 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 09:58:44,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 09:58:44,468 INFO L82 PathProgramCache]: Analyzing trace with hash -2064988448, now seen corresponding path program 1 times [2020-09-25 09:58:44,477 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 09:58:44,477 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1107734605] [2020-09-25 09:58:44,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 09:58:44,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:58:44,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:44,728 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:58:44,728 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 09:58:44,729 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:58:44,729 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 114 [2020-09-25 09:58:44,731 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:58:44,732 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:58:44,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 09:58:44,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-09-25 09:58:44,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 09:58:44,733 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 09:58:44,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 09:58:44,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:58:44,808 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:44,810 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:58:44,811 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:58:44,811 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:58:44,811 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 09:58:44,811 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:58:44,812 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:58:44,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:58:44,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:58:44,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:58:44,813 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:58:44,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-25 09:58:44,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:58:44,826 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:44,837 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:58:44,837 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:58:44,837 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:58:44,838 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 09:58:44,838 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:58:44,838 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:58:44,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 09:58:44,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:58:44,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 09:58:44,839 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:58:44,874 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 09:58:44,875 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1107734605] [2020-09-25 09:58:44,882 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 09:58:44,882 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 09:58:44,884 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1827681761] [2020-09-25 09:58:44,891 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 09:58:44,891 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 09:58:44,909 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 09:58:44,910 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-25 09:58:44,913 INFO L87 Difference]: Start difference. First operand 33 states. Second operand 5 states. [2020-09-25 09:58:45,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 09:58:45,028 INFO L93 Difference]: Finished difference Result 48 states and 54 transitions. [2020-09-25 09:58:45,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 09:58:45,030 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2020-09-25 09:58:45,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 09:58:45,044 INFO L225 Difference]: With dead ends: 48 [2020-09-25 09:58:45,045 INFO L226 Difference]: Without dead ends: 30 [2020-09-25 09:58:45,049 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 09:58:45,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-09-25 09:58:45,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2020-09-25 09:58:45,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-09-25 09:58:45,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 34 transitions. [2020-09-25 09:58:45,102 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 34 transitions. Word has length 18 [2020-09-25 09:58:45,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 09:58:45,103 INFO L479 AbstractCegarLoop]: Abstraction has 30 states and 34 transitions. [2020-09-25 09:58:45,103 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 09:58:45,103 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 34 transitions. [2020-09-25 09:58:45,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-09-25 09:58:45,106 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 09:58:45,106 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 09:58:45,106 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 09:58:45,107 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 09:58:45,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 09:58:45,107 INFO L82 PathProgramCache]: Analyzing trace with hash -1678486471, now seen corresponding path program 1 times [2020-09-25 09:58:45,108 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 09:58:45,108 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2059080257] [2020-09-25 09:58:45,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 09:58:45,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:58:45,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:45,194 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:58:45,194 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-25 09:58:45,195 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:58:45,195 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 74 [2020-09-25 09:58:45,195 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:58:45,196 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:58:45,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 09:58:45,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-09-25 09:58:45,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-25 09:58:45,197 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:58:45,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 09:58:45,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:58:45,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:45,234 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:58:45,234 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:58:45,235 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:58:45,235 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 09:58:45,235 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:58:45,235 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:58:45,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:58:45,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:58:45,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:58:45,236 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:58:45,240 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-25 09:58:45,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:58:45,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:45,316 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:58:45,317 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 09:58:45,317 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:58:45,317 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 70 [2020-09-25 09:58:45,321 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:58:45,321 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:58:45,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 09:58:45,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:58:45,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 09:58:45,322 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:58:45,352 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 09:58:45,357 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2059080257] [2020-09-25 09:58:45,358 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 09:58:45,358 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 09:58:45,358 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2064372207] [2020-09-25 09:58:45,361 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 09:58:45,361 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 09:58:45,362 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 09:58:45,362 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-25 09:58:45,362 INFO L87 Difference]: Start difference. First operand 30 states and 34 transitions. Second operand 5 states. [2020-09-25 09:58:45,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 09:58:45,436 INFO L93 Difference]: Finished difference Result 38 states and 43 transitions. [2020-09-25 09:58:45,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 09:58:45,436 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 19 [2020-09-25 09:58:45,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 09:58:45,438 INFO L225 Difference]: With dead ends: 38 [2020-09-25 09:58:45,438 INFO L226 Difference]: Without dead ends: 32 [2020-09-25 09:58:45,440 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 09:58:45,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2020-09-25 09:58:45,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 30. [2020-09-25 09:58:45,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-09-25 09:58:45,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 34 transitions. [2020-09-25 09:58:45,448 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 34 transitions. Word has length 19 [2020-09-25 09:58:45,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 09:58:45,448 INFO L479 AbstractCegarLoop]: Abstraction has 30 states and 34 transitions. [2020-09-25 09:58:45,448 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 09:58:45,448 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 34 transitions. [2020-09-25 09:58:45,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-09-25 09:58:45,450 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 09:58:45,451 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] [2020-09-25 09:58:45,451 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 09:58:45,451 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 09:58:45,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 09:58:45,452 INFO L82 PathProgramCache]: Analyzing trace with hash 961212118, now seen corresponding path program 1 times [2020-09-25 09:58:45,452 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 09:58:45,453 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [21550146] [2020-09-25 09:58:45,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 09:58:45,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:58:45,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:45,592 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:45,666 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:46,054 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:58:46,054 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-09-25 09:58:46,054 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 09:58:46,055 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 586 [2020-09-25 09:58:46,056 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:58:46,056 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:58:46,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 09:58:46,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-09-25 09:58:46,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 32 [2020-09-25 09:58:46,057 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 09:58:46,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 09:58:46,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:58:46,073 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:46,074 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:58:46,074 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:58:46,075 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:58:46,075 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 09:58:46,075 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:58:46,075 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:58:46,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:58:46,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:58:46,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:58:46,076 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:58:46,078 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-25 09:58:46,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:58:46,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:46,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:46,173 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:58:46,173 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 09:58:46,173 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 09:58:46,174 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 87 [2020-09-25 09:58:46,174 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:58:46,174 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:58:46,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 09:58:46,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:58:46,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-25 09:58:46,175 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:58:46,210 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 09:58:46,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:58:46,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:46,223 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:58:46,223 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:58:46,223 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:58:46,224 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 09:58:46,224 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:58:46,224 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:58:46,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 09:58:46,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:58:46,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 09:58:46,225 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:58:46,246 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 09:58:46,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:58:46,251 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:46,260 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:58:46,261 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:58:46,261 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:58:46,261 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 09:58:46,261 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:58:46,262 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:58:46,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:58:46,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:58:46,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 09:58:46,263 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:58:46,271 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 8 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-09-25 09:58:46,271 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [21550146] [2020-09-25 09:58:46,272 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 09:58:46,272 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-25 09:58:46,272 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [692830474] [2020-09-25 09:58:46,273 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 09:58:46,273 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 09:58:46,273 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 09:58:46,274 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-09-25 09:58:46,274 INFO L87 Difference]: Start difference. First operand 30 states and 34 transitions. Second operand 7 states. [2020-09-25 09:58:46,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 09:58:46,368 INFO L93 Difference]: Finished difference Result 68 states and 85 transitions. [2020-09-25 09:58:46,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 09:58:46,368 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 35 [2020-09-25 09:58:46,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 09:58:46,370 INFO L225 Difference]: With dead ends: 68 [2020-09-25 09:58:46,371 INFO L226 Difference]: Without dead ends: 42 [2020-09-25 09:58:46,372 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2020-09-25 09:58:46,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2020-09-25 09:58:46,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 40. [2020-09-25 09:58:46,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2020-09-25 09:58:46,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 46 transitions. [2020-09-25 09:58:46,382 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 46 transitions. Word has length 35 [2020-09-25 09:58:46,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 09:58:46,382 INFO L479 AbstractCegarLoop]: Abstraction has 40 states and 46 transitions. [2020-09-25 09:58:46,383 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 09:58:46,383 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 46 transitions. [2020-09-25 09:58:46,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2020-09-25 09:58:46,385 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 09:58:46,385 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] [2020-09-25 09:58:46,385 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 09:58:46,386 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 09:58:46,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 09:58:46,386 INFO L82 PathProgramCache]: Analyzing trace with hash -125795935, now seen corresponding path program 1 times [2020-09-25 09:58:46,386 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 09:58:46,387 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1641333151] [2020-09-25 09:58:46,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 09:58:46,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:58:46,404 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:46,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:46,738 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:58:46,738 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-09-25 09:58:46,738 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 09:58:46,739 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 340 [2020-09-25 09:58:46,739 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:58:46,739 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:58:46,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 09:58:46,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-09-25 09:58:46,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-25 09:58:46,740 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:58:46,758 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 09:58:46,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:58:46,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:46,761 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:58:46,761 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:58:46,762 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:58:46,762 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 09:58:46,762 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:58:46,763 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:58:46,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:58:46,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:58:46,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:58:46,764 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:58:46,765 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-25 09:58:46,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:58:46,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:46,796 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:47,044 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:58:47,044 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-25 09:58:47,044 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 09:58:47,045 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 272 [2020-09-25 09:58:47,045 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:58:47,045 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:58:47,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 09:58:47,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:58:47,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-25 09:58:47,046 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:58:47,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 09:58:47,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:58:47,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:47,111 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:58:47,111 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 09:58:47,123 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:58:47,123 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-09-25 09:58:47,124 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:58:47,124 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:58:47,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 09:58:47,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:58:47,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 09:58:47,125 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:58:47,157 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 09:58:47,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:58:47,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:47,168 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:58:47,168 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:58:47,169 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:58:47,169 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 09:58:47,169 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:58:47,169 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:58:47,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:58:47,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:58:47,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 09:58:47,170 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:58:47,176 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 8 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-09-25 09:58:47,177 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1641333151] [2020-09-25 09:58:47,177 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 09:58:47,177 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-25 09:58:47,178 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1412563469] [2020-09-25 09:58:47,178 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 09:58:47,178 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 09:58:47,179 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 09:58:47,179 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-09-25 09:58:47,179 INFO L87 Difference]: Start difference. First operand 40 states and 46 transitions. Second operand 7 states. [2020-09-25 09:58:47,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 09:58:47,312 INFO L93 Difference]: Finished difference Result 56 states and 69 transitions. [2020-09-25 09:58:47,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 09:58:47,313 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 36 [2020-09-25 09:58:47,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 09:58:47,316 INFO L225 Difference]: With dead ends: 56 [2020-09-25 09:58:47,316 INFO L226 Difference]: Without dead ends: 50 [2020-09-25 09:58:47,317 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2020-09-25 09:58:47,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2020-09-25 09:58:47,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 44. [2020-09-25 09:58:47,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2020-09-25 09:58:47,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 55 transitions. [2020-09-25 09:58:47,327 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 55 transitions. Word has length 36 [2020-09-25 09:58:47,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 09:58:47,328 INFO L479 AbstractCegarLoop]: Abstraction has 44 states and 55 transitions. [2020-09-25 09:58:47,328 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 09:58:47,328 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 55 transitions. [2020-09-25 09:58:47,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2020-09-25 09:58:47,331 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 09:58:47,331 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] [2020-09-25 09:58:47,332 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 09:58:47,332 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 09:58:47,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 09:58:47,332 INFO L82 PathProgramCache]: Analyzing trace with hash 1801616585, now seen corresponding path program 2 times [2020-09-25 09:58:47,333 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 09:58:47,333 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1977787300] [2020-09-25 09:58:47,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 09:58:47,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:58:47,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:47,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:47,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:47,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:47,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:47,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:47,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:48,081 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:50,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:50,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:50,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:50,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:50,767 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:52,374 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:58:52,375 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-09-25 09:58:52,375 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 13 [2020-09-25 09:58:52,375 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5025 [2020-09-25 09:58:52,375 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:58:52,376 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:58:52,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 09:58:52,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-09-25 09:58:52,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-09-25 09:58:52,376 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:58:52,395 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 09:58:52,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:58:52,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:52,398 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:58:52,399 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:58:52,399 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:58:52,400 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 09:58:52,400 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:58:52,400 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:58:52,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:58:52,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:58:52,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:58:52,402 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:58:52,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-25 09:58:52,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:58:52,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:52,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:52,465 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:52,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:52,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:52,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:52,689 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:53,088 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:53,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:53,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:53,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:55,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:55,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:57,430 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:58:57,431 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-09-25 09:58:57,431 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 13 [2020-09-25 09:58:57,431 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5018 [2020-09-25 09:58:57,434 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:58:57,434 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:58:57,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 09:58:57,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 09:58:57,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-09-25 09:58:57,435 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 09:58:57,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 09:58:57,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:58:57,459 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:57,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:57,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:57,635 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:58:57,636 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 09:58:57,636 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 09:58:57,636 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 178 [2020-09-25 09:58:57,637 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:58:57,637 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:58:57,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 09:58:57,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:58:57,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-25 09:58:57,638 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:58:57,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 09:58:57,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:58:57,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:57,668 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:58:57,668 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:58:57,669 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:58:57,670 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 09:58:57,671 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:58:57,671 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:58:57,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:58:57,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:58:57,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 09:58:57,673 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 09:58:57,676 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 09:58:57,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:58:57,682 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:57,686 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:58:57,687 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:58:57,687 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:58:57,688 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 09:58:57,688 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:58:57,689 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:58:57,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 09:58:57,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:58:57,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 09:58:57,690 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 09:58:57,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-09-25 09:58:57,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:58:57,717 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:57,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:57,759 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:57,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:58,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:58,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:58,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:58,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:59,597 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:58:59,597 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-09-25 09:58:59,597 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-09-25 09:58:59,598 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1884 [2020-09-25 09:58:59,598 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:58:59,598 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:58:59,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 09:58:59,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 09:58:59,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-09-25 09:58:59,599 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:58:59,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 09:58:59,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:58:59,671 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:59,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:59,729 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:58:59,729 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 09:58:59,730 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 09:58:59,730 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-09-25 09:58:59,730 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:58:59,730 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:58:59,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:58:59,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:58:59,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 09:58:59,731 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:58:59,736 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 09:58:59,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:58:59,738 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:59,741 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:58:59,741 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:58:59,742 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:58:59,742 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 09:58:59,742 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:58:59,742 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:58:59,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:58:59,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:58:59,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:58:59,743 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:58:59,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 09:58:59,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:58:59,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:59,749 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:58:59,749 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:58:59,750 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:58:59,750 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 09:58:59,750 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:58:59,750 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:58:59,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:58:59,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:58:59,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:58:59,751 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:58:59,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-09-25 09:58:59,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:58:59,759 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:59,767 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:58:59,768 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 09:58:59,768 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:58:59,768 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 09:58:59,768 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:58:59,769 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:58:59,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:58:59,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:58:59,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 09:58:59,769 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:58:59,789 INFO L134 CoverageAnalysis]: Checked inductivity of 202 backedges. 58 proven. 65 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2020-09-25 09:58:59,790 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1977787300] [2020-09-25 09:58:59,790 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 09:58:59,790 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-09-25 09:58:59,790 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [616949789] [2020-09-25 09:58:59,792 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 09:58:59,792 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 09:58:59,792 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 09:58:59,792 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-09-25 09:58:59,793 INFO L87 Difference]: Start difference. First operand 44 states and 55 transitions. Second operand 9 states. [2020-09-25 09:59:00,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 09:59:00,157 INFO L93 Difference]: Finished difference Result 102 states and 147 transitions. [2020-09-25 09:59:00,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-25 09:59:00,158 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 87 [2020-09-25 09:59:00,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 09:59:00,159 INFO L225 Difference]: With dead ends: 102 [2020-09-25 09:59:00,160 INFO L226 Difference]: Without dead ends: 57 [2020-09-25 09:59:00,162 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=98, Invalid=208, Unknown=0, NotChecked=0, Total=306 [2020-09-25 09:59:00,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2020-09-25 09:59:00,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 49. [2020-09-25 09:59:00,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2020-09-25 09:59:00,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 58 transitions. [2020-09-25 09:59:00,172 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 58 transitions. Word has length 87 [2020-09-25 09:59:00,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 09:59:00,173 INFO L479 AbstractCegarLoop]: Abstraction has 49 states and 58 transitions. [2020-09-25 09:59:00,173 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 09:59:00,173 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 58 transitions. [2020-09-25 09:59:00,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2020-09-25 09:59:00,175 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 09:59:00,175 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 09:59:00,175 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 09:59:00,175 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 09:59:00,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 09:59:00,176 INFO L82 PathProgramCache]: Analyzing trace with hash -1419436827, now seen corresponding path program 1 times [2020-09-25 09:59:00,176 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 09:59:00,176 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1370985003] [2020-09-25 09:59:00,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 09:59:00,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:59:00,199 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:00,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:00,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:00,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:00,379 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:00,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:00,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:00,793 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:01,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:01,469 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:01,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:02,883 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:05,195 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:59:05,196 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-09-25 09:59:05,196 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 12 [2020-09-25 09:59:05,196 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-09-25 09:59:05,197 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:59:05,197 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:59:05,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 09:59:05,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-09-25 09:59:05,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-25 09:59:05,197 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:59:05,210 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 09:59:05,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:59:05,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:05,212 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:59:05,213 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:59:05,213 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:59:05,213 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 09:59:05,213 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:59:05,213 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:59:05,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:59:05,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:59:05,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:59:05,214 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 09:59:05,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-25 09:59:05,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:59:05,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:05,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:05,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:05,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:05,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:05,559 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:05,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:05,716 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:06,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:06,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:07,172 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:07,241 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:09,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:09,389 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:10,227 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:59:10,228 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 100 [2020-09-25 09:59:10,228 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 14 [2020-09-25 09:59:10,228 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-09-25 09:59:10,228 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:59:10,228 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:59:10,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 09:59:10,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 09:59:10,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-25 09:59:10,229 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:59:10,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 09:59:10,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:59:10,270 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:10,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:10,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:10,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:10,588 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:59:10,588 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-25 09:59:10,588 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 09:59:10,588 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 321 [2020-09-25 09:59:10,589 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:59:10,589 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:59:10,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 09:59:10,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:59:10,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-25 09:59:10,589 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 09:59:10,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 09:59:10,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:59:10,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:10,623 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:59:10,623 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 09:59:10,623 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:59:10,623 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 09:59:10,623 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:59:10,624 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:59:10,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 09:59:10,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:59:10,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 09:59:10,624 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 09:59:10,642 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 09:59:10,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:59:10,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:10,651 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:59:10,651 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 09:59:10,651 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:59:10,651 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 09:59:10,651 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:59:10,652 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:59:10,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:59:10,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:59:10,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 09:59:10,652 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 09:59:10,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-09-25 09:59:10,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:59:10,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:10,679 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:10,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:10,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:11,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:11,072 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:11,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:11,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:11,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:11,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:13,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:13,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:15,660 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:59:15,660 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-09-25 09:59:15,661 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 12 [2020-09-25 09:59:15,661 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-25 09:59:15,661 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:59:15,661 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:59:15,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 09:59:15,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 09:59:15,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-09-25 09:59:15,662 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 09:59:15,679 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 09:59:15,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:59:15,686 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:15,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:15,734 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:15,775 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:59:15,776 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-25 09:59:15,776 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 09:59:15,776 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 92 [2020-09-25 09:59:15,776 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:59:15,776 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:59:15,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:59:15,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:59:15,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-25 09:59:15,777 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 09:59:15,780 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 09:59:15,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:59:15,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:15,785 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:59:15,785 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 09:59:15,785 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:59:15,785 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 09:59:15,785 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:59:15,785 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:59:15,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:59:15,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:59:15,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:59:15,786 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 09:59:15,787 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 09:59:15,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:59:15,788 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:15,791 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:59:15,791 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 09:59:15,791 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:59:15,791 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 09:59:15,792 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:59:15,792 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:59:15,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:59:15,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:59:15,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:59:15,792 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 09:59:15,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-09-25 09:59:15,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:59:15,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:15,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:15,819 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:59:15,819 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 09:59:15,819 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 09:59:15,819 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-25 09:59:15,820 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:59:15,820 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:59:15,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 09:59:15,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:59:15,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 09:59:15,821 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:59:15,843 INFO L134 CoverageAnalysis]: Checked inductivity of 232 backedges. 84 proven. 69 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2020-09-25 09:59:15,843 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1370985003] [2020-09-25 09:59:15,844 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 09:59:15,844 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-09-25 09:59:15,844 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [393981333] [2020-09-25 09:59:15,845 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 09:59:15,845 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 09:59:15,846 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 09:59:15,846 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-09-25 09:59:15,846 INFO L87 Difference]: Start difference. First operand 49 states and 58 transitions. Second operand 9 states. [2020-09-25 09:59:16,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 09:59:16,083 INFO L93 Difference]: Finished difference Result 120 states and 156 transitions. [2020-09-25 09:59:16,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 09:59:16,083 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 91 [2020-09-25 09:59:16,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 09:59:16,086 INFO L225 Difference]: With dead ends: 120 [2020-09-25 09:59:16,086 INFO L226 Difference]: Without dead ends: 78 [2020-09-25 09:59:16,088 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2020-09-25 09:59:16,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2020-09-25 09:59:16,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 53. [2020-09-25 09:59:16,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2020-09-25 09:59:16,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 63 transitions. [2020-09-25 09:59:16,099 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 63 transitions. Word has length 91 [2020-09-25 09:59:16,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 09:59:16,100 INFO L479 AbstractCegarLoop]: Abstraction has 53 states and 63 transitions. [2020-09-25 09:59:16,100 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 09:59:16,100 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 63 transitions. [2020-09-25 09:59:16,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2020-09-25 09:59:16,102 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 09:59:16,102 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] [2020-09-25 09:59:16,102 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 09:59:16,103 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 09:59:16,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 09:59:16,103 INFO L82 PathProgramCache]: Analyzing trace with hash -1575340027, now seen corresponding path program 3 times [2020-09-25 09:59:16,103 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 09:59:16,104 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [104306742] [2020-09-25 09:59:16,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 09:59:16,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:59:16,137 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:16,178 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:16,241 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:16,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:16,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:16,489 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:17,700 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:17,734 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:17,808 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:18,055 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:18,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:18,222 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:18,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:18,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:18,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:18,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:18,431 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:18,578 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:21,128 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:59:21,128 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 158 [2020-09-25 09:59:21,128 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 18 [2020-09-25 09:59:21,128 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-09-25 09:59:21,129 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:59:21,129 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:59:21,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 09:59:21,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-09-25 09:59:21,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-09-25 09:59:21,129 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 09:59:21,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 09:59:21,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:59:21,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:21,142 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:59:21,142 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:59:21,143 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:59:21,143 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 09:59:21,143 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:59:21,143 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:59:21,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:59:21,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:59:21,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:59:21,144 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 09:59:21,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-25 09:59:21,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:59:21,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:21,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:21,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:21,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:21,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:21,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:21,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:21,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:21,991 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:22,012 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:22,036 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:22,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:22,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:22,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:25,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:25,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:26,166 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:59:26,166 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 142 [2020-09-25 09:59:26,166 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 16 [2020-09-25 09:59:26,166 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-09-25 09:59:26,166 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:59:26,167 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:59:26,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 09:59:26,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 09:59:26,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-09-25 09:59:26,167 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 09:59:26,183 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 09:59:26,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:59:26,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:26,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:26,229 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:27,609 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:59:27,610 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-25 09:59:27,610 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 09:59:27,610 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1421 [2020-09-25 09:59:27,611 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:59:27,611 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:59:27,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 09:59:27,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:59:27,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-09-25 09:59:27,612 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:59:27,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 09:59:27,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:59:27,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:27,656 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:59:27,657 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-25 09:59:27,657 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:59:27,657 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-25 09:59:27,657 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:59:27,657 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:59:27,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:59:27,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:59:27,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-25 09:59:27,658 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 09:59:27,661 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 09:59:27,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:59:27,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:27,665 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:59:27,665 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 09:59:27,665 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:59:27,665 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 09:59:27,666 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:59:27,666 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:59:27,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:59:27,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:59:27,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:59:27,666 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 09:59:27,667 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 09:59:27,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:59:27,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:27,671 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:59:27,671 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:59:27,671 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:59:27,671 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 09:59:27,671 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:59:27,672 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:59:27,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:59:27,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:59:27,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:59:27,672 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 09:59:27,674 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-25 09:59:27,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:59:27,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:27,687 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:59:27,687 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 09:59:27,688 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:59:27,688 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 09:59:27,688 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:59:27,688 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:59:27,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 09:59:27,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:59:27,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 09:59:27,689 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 09:59:27,699 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-09-25 09:59:27,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:59:27,712 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:27,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:27,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:27,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:27,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:28,361 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:28,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:28,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:28,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:28,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:29,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:29,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:29,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:29,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:32,705 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:59:32,705 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-09-25 09:59:32,705 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 14 [2020-09-25 09:59:32,706 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-09-25 09:59:32,706 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:59:32,706 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:59:32,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 09:59:32,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 09:59:32,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-09-25 09:59:32,707 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 09:59:32,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 09:59:32,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:59:32,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:32,766 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:59:32,766 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-25 09:59:32,766 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:59:32,767 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-09-25 09:59:32,767 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:59:32,767 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:59:32,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:59:32,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:59:32,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-25 09:59:32,768 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:59:32,774 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 09:59:32,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:59:32,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:32,783 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:59:32,784 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-25 09:59:32,784 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:59:32,784 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 09:59:32,784 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:59:32,784 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:59:32,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:59:32,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:59:32,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:59:32,785 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 09:59:32,787 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 09:59:32,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:59:32,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:32,792 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:59:32,792 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 09:59:32,793 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:59:32,793 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 09:59:32,793 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:59:32,793 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:59:32,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:59:32,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:59:32,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:59:32,794 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:59:32,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 09:59:32,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:59:32,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:32,800 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:59:32,800 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:59:32,800 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:59:32,800 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 09:59:32,801 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:59:32,801 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:59:32,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:59:32,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:59:32,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:59:32,801 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 09:59:32,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-25 09:59:32,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:59:32,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:32,807 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:59:32,807 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 09:59:32,807 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:59:32,807 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 09:59:32,808 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:59:32,808 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:59:32,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:59:32,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:59:32,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:59:32,808 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 09:59:32,810 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-09-25 09:59:32,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:59:32,812 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:32,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:32,830 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:59:32,831 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 09:59:32,831 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 09:59:32,831 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-25 09:59:32,831 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:59:32,831 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:59:32,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 09:59:32,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:59:32,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 09:59:32,832 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 09:59:32,877 INFO L134 CoverageAnalysis]: Checked inductivity of 483 backedges. 155 proven. 100 refuted. 0 times theorem prover too weak. 228 trivial. 0 not checked. [2020-09-25 09:59:32,877 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [104306742] [2020-09-25 09:59:32,878 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 09:59:32,878 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-09-25 09:59:32,878 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [640166788] [2020-09-25 09:59:32,879 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 09:59:32,879 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 09:59:32,879 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 09:59:32,880 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-09-25 09:59:32,880 INFO L87 Difference]: Start difference. First operand 53 states and 63 transitions. Second operand 9 states. [2020-09-25 09:59:33,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 09:59:33,212 INFO L93 Difference]: Finished difference Result 133 states and 185 transitions. [2020-09-25 09:59:33,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-25 09:59:33,212 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 125 [2020-09-25 09:59:33,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 09:59:33,215 INFO L225 Difference]: With dead ends: 133 [2020-09-25 09:59:33,215 INFO L226 Difference]: Without dead ends: 88 [2020-09-25 09:59:33,216 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=98, Invalid=208, Unknown=0, NotChecked=0, Total=306 [2020-09-25 09:59:33,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2020-09-25 09:59:33,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 71. [2020-09-25 09:59:33,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2020-09-25 09:59:33,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 88 transitions. [2020-09-25 09:59:33,243 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 88 transitions. Word has length 125 [2020-09-25 09:59:33,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 09:59:33,244 INFO L479 AbstractCegarLoop]: Abstraction has 71 states and 88 transitions. [2020-09-25 09:59:33,244 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 09:59:33,244 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 88 transitions. [2020-09-25 09:59:33,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2020-09-25 09:59:33,246 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 09:59:33,246 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] [2020-09-25 09:59:33,246 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-25 09:59:33,246 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 09:59:33,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 09:59:33,247 INFO L82 PathProgramCache]: Analyzing trace with hash 1005193447, now seen corresponding path program 4 times [2020-09-25 09:59:33,247 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 09:59:33,247 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [368862923] [2020-09-25 09:59:33,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 09:59:33,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:59:33,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:33,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:33,333 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:33,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:35,112 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:38,262 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:59:38,263 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 114 [2020-09-25 09:59:38,263 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 09:59:38,263 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-25 09:59:38,263 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:59:38,263 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:59:38,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 09:59:38,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-09-25 09:59:38,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-09-25 09:59:38,264 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 09:59:38,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 09:59:38,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:59:38,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:38,281 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:59:38,281 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:59:38,282 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:59:38,282 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 09:59:38,282 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:59:38,282 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:59:38,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:59:38,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:59:38,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:59:38,283 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 09:59:38,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-25 09:59:38,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:59:38,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:38,324 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:38,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:38,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking...