/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.8 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/recursive-simple/fibo_7-1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 07:45:34,966 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 07:45:34,969 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 07:45:34,995 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 07:45:34,996 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 07:45:34,997 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 07:45:34,998 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 07:45:35,000 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 07:45:35,002 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 07:45:35,003 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 07:45:35,004 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 07:45:35,005 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 07:45:35,005 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 07:45:35,006 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 07:45:35,008 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 07:45:35,009 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 07:45:35,010 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 07:45:35,011 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 07:45:35,013 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 07:45:35,014 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 07:45:35,016 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 07:45:35,017 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 07:45:35,018 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 07:45:35,019 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 07:45:35,022 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 07:45:35,022 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 07:45:35,022 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 07:45:35,023 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 07:45:35,024 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 07:45:35,025 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 07:45:35,025 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 07:45:35,026 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 07:45:35,027 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 07:45:35,028 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 07:45:35,029 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 07:45:35,029 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 07:45:35,030 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 07:45:35,030 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 07:45:35,030 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 07:45:35,031 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 07:45:35,032 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 07:45:35,033 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 07:45:35,085 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 07:45:35,086 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 07:45:35,090 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 07:45:35,091 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 07:45:35,091 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 07:45:35,091 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 07:45:35,091 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 07:45:35,092 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 07:45:35,093 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 07:45:35,093 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 07:45:35,093 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 07:45:35,094 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 07:45:35,094 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 07:45:35,094 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 07:45:35,094 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 07:45:35,095 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 07:45:35,095 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 07:45:35,096 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 07:45:35,096 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 07:45:35,096 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 07:45:35,096 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 07:45:35,096 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 07:45:35,097 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 07:45:35,097 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 07:45:35,097 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 07:45:35,098 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 07:45:35,098 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 07:45:35,098 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 07:45:35,098 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 07:45:35,098 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; [2020-09-25 07:45:35,529 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 07:45:35,552 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 07:45:35,560 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 07:45:35,562 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 07:45:35,562 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 07:45:35,563 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive-simple/fibo_7-1.c [2020-09-25 07:45:35,639 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/da4bc1b58/0b6b2001abca46b7a7f6c6c61130649b/FLAGa699bad7e [2020-09-25 07:45:36,121 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 07:45:36,122 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/recursive-simple/fibo_7-1.c [2020-09-25 07:45:36,130 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/da4bc1b58/0b6b2001abca46b7a7f6c6c61130649b/FLAGa699bad7e [2020-09-25 07:45:36,475 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/da4bc1b58/0b6b2001abca46b7a7f6c6c61130649b [2020-09-25 07:45:36,488 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 07:45:36,496 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 07:45:36,498 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 07:45:36,498 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 07:45:36,503 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 07:45:36,504 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 07:45:36" (1/1) ... [2020-09-25 07:45:36,509 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63cc40f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:45:36, skipping insertion in model container [2020-09-25 07:45:36,509 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 07:45:36" (1/1) ... [2020-09-25 07:45:36,520 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 07:45:36,544 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 07:45:36,761 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 07:45:36,766 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 07:45:36,785 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 07:45:36,804 INFO L208 MainTranslator]: Completed translation [2020-09-25 07:45:36,804 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:45:36 WrapperNode [2020-09-25 07:45:36,804 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 07:45:36,805 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 07:45:36,805 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 07:45:36,806 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 07:45:36,823 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:45:36" (1/1) ... [2020-09-25 07:45:36,823 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:45:36" (1/1) ... [2020-09-25 07:45:36,829 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:45:36" (1/1) ... [2020-09-25 07:45:36,829 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:45:36" (1/1) ... [2020-09-25 07:45:36,833 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:45:36" (1/1) ... [2020-09-25 07:45:36,835 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:45:36" (1/1) ... [2020-09-25 07:45:36,836 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:45:36" (1/1) ... [2020-09-25 07:45:36,837 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 07:45:36,838 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 07:45:36,838 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 07:45:36,838 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 07:45:36,839 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:45:36" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 07:45:37,006 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 07:45:37,006 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 07:45:37,006 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo [2020-09-25 07:45:37,007 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 07:45:37,007 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 07:45:37,007 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 07:45:37,007 INFO L130 BoogieDeclarations]: Found specification of procedure fibo [2020-09-25 07:45:37,007 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 07:45:37,008 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 07:45:37,008 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 07:45:37,215 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 07:45:37,215 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-25 07:45:37,220 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 07:45:37 BoogieIcfgContainer [2020-09-25 07:45:37,221 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 07:45:37,222 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 07:45:37,222 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 07:45:37,226 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 07:45:37,226 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 07:45:36" (1/3) ... [2020-09-25 07:45:37,227 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2226e1f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 07:45:37, skipping insertion in model container [2020-09-25 07:45:37,228 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:45:36" (2/3) ... [2020-09-25 07:45:37,230 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2226e1f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 07:45:37, skipping insertion in model container [2020-09-25 07:45:37,230 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 07:45:37" (3/3) ... [2020-09-25 07:45:37,232 INFO L109 eAbstractionObserver]: Analyzing ICFG fibo_7-1.c [2020-09-25 07:45:37,244 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 07:45:37,254 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 07:45:37,275 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 07:45:37,303 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 07:45:37,303 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 07:45:37,303 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 07:45:37,303 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 07:45:37,304 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 07:45:37,304 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 07:45:37,304 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 07:45:37,304 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 07:45:37,323 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states. [2020-09-25 07:45:37,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-09-25 07:45:37,330 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:45:37,331 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:45:37,332 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:45:37,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:45:37,339 INFO L82 PathProgramCache]: Analyzing trace with hash -1756383024, now seen corresponding path program 1 times [2020-09-25 07:45:37,348 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:45:37,348 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1159804191] [2020-09-25 07:45:37,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:45:37,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:37,477 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:37,524 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:37,524 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 07:45:37,525 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:45:37,525 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-09-25 07:45:37,527 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:37,528 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:37,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 07:45:37,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 07:45:37,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 07:45:37,529 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 07:45:37,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:45:37,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:37,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:37,598 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:37,599 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:45:37,599 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:45:37,599 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:45:37,599 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:37,600 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:37,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:45:37,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:45:37,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:45:37,601 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:45:37,605 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 07:45:37,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:37,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:37,637 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:37,637 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:45:37,638 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:45:37,638 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-09-25 07:45:37,638 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:37,638 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:37,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 07:45:37,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 07:45:37,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 07:45:37,639 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:45:37,759 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 07:45:37,760 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1159804191] [2020-09-25 07:45:37,770 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:45:37,770 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 07:45:37,772 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [865443215] [2020-09-25 07:45:37,780 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 07:45:37,780 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:45:37,796 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 07:45:37,797 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-25 07:45:37,800 INFO L87 Difference]: Start difference. First operand 31 states. Second operand 5 states. [2020-09-25 07:45:37,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:45:37,918 INFO L93 Difference]: Finished difference Result 44 states and 50 transitions. [2020-09-25 07:45:37,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 07:45:37,921 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2020-09-25 07:45:37,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:45:37,939 INFO L225 Difference]: With dead ends: 44 [2020-09-25 07:45:37,939 INFO L226 Difference]: Without dead ends: 28 [2020-09-25 07:45:37,943 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 07:45:37,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2020-09-25 07:45:37,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2020-09-25 07:45:38,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2020-09-25 07:45:38,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 32 transitions. [2020-09-25 07:45:38,005 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 32 transitions. Word has length 16 [2020-09-25 07:45:38,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:45:38,006 INFO L479 AbstractCegarLoop]: Abstraction has 28 states and 32 transitions. [2020-09-25 07:45:38,006 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 07:45:38,007 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 32 transitions. [2020-09-25 07:45:38,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-09-25 07:45:38,009 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:45:38,009 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:45:38,010 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 07:45:38,010 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:45:38,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:45:38,011 INFO L82 PathProgramCache]: Analyzing trace with hash -389703589, now seen corresponding path program 1 times [2020-09-25 07:45:38,011 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:45:38,012 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [406739472] [2020-09-25 07:45:38,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:45:38,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:38,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:38,151 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:38,152 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-09-25 07:45:38,155 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:45:38,155 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 126 [2020-09-25 07:45:38,156 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:38,156 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:38,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 07:45:38,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 07:45:38,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 07:45:38,157 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:45:38,197 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:45:38,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:38,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:38,207 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:38,207 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:45:38,207 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:45:38,210 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 07:45:38,210 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:38,210 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:38,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:45:38,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:45:38,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:45:38,212 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:45:38,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 07:45:38,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:38,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:38,295 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:38,299 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 07:45:38,299 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:45:38,299 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 65 [2020-09-25 07:45:38,300 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:38,300 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:38,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 07:45:38,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 07:45:38,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 07:45:38,303 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 07:45:38,339 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 07:45:38,339 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [406739472] [2020-09-25 07:45:38,340 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:45:38,340 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 07:45:38,340 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [918788353] [2020-09-25 07:45:38,345 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 07:45:38,345 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:45:38,345 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 07:45:38,347 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-25 07:45:38,347 INFO L87 Difference]: Start difference. First operand 28 states and 32 transitions. Second operand 5 states. [2020-09-25 07:45:38,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:45:38,427 INFO L93 Difference]: Finished difference Result 36 states and 41 transitions. [2020-09-25 07:45:38,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 07:45:38,428 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2020-09-25 07:45:38,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:45:38,430 INFO L225 Difference]: With dead ends: 36 [2020-09-25 07:45:38,430 INFO L226 Difference]: Without dead ends: 30 [2020-09-25 07:45:38,431 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 07:45:38,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-09-25 07:45:38,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 28. [2020-09-25 07:45:38,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2020-09-25 07:45:38,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 32 transitions. [2020-09-25 07:45:38,440 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 32 transitions. Word has length 17 [2020-09-25 07:45:38,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:45:38,441 INFO L479 AbstractCegarLoop]: Abstraction has 28 states and 32 transitions. [2020-09-25 07:45:38,441 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 07:45:38,441 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 32 transitions. [2020-09-25 07:45:38,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-09-25 07:45:38,442 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:45:38,443 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:45:38,443 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 07:45:38,443 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:45:38,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:45:38,444 INFO L82 PathProgramCache]: Analyzing trace with hash 50309368, now seen corresponding path program 1 times [2020-09-25 07:45:38,444 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:45:38,444 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [157534869] [2020-09-25 07:45:38,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:45:38,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:38,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:38,495 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:38,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:39,077 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:39,078 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-09-25 07:45:39,078 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 07:45:39,078 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 618 [2020-09-25 07:45:39,080 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:39,081 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:39,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 07:45:39,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 07:45:39,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 07:45:39,082 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 07:45:39,099 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:45:39,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:39,101 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:39,102 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:39,103 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:45:39,103 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:45:39,103 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:45:39,104 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:39,104 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:39,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:45:39,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:45:39,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:45:39,105 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:45:39,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 07:45:39,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:39,117 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:39,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:39,199 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:39,331 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:39,332 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 07:45:39,332 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 07:45:39,332 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 218 [2020-09-25 07:45:39,333 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:39,333 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:39,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 07:45:39,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 07:45:39,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 07:45:39,334 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:45:39,359 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 07:45:39,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:39,364 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:39,371 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:39,371 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:45:39,371 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:45:39,371 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 07:45:39,372 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:39,372 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:39,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:45:39,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:45:39,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 07:45:39,373 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:45:39,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 07:45:39,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:39,381 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:39,388 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:39,389 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:45:39,389 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:45:39,390 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 07:45:39,390 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:39,390 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:39,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 07:45:39,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:45:39,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 07:45:39,391 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:45:39,408 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-09-25 07:45:39,408 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [157534869] [2020-09-25 07:45:39,408 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 07:45:39,409 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-09-25 07:45:39,409 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [396981258] [2020-09-25 07:45:39,409 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 07:45:39,410 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:45:39,410 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 07:45:39,410 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-09-25 07:45:39,411 INFO L87 Difference]: Start difference. First operand 28 states and 32 transitions. Second operand 6 states. [2020-09-25 07:45:39,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:45:39,488 INFO L93 Difference]: Finished difference Result 44 states and 54 transitions. [2020-09-25 07:45:39,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 07:45:39,489 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 33 [2020-09-25 07:45:39,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:45:39,491 INFO L225 Difference]: With dead ends: 44 [2020-09-25 07:45:39,492 INFO L226 Difference]: Without dead ends: 38 [2020-09-25 07:45:39,492 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-09-25 07:45:39,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2020-09-25 07:45:39,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 36. [2020-09-25 07:45:39,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2020-09-25 07:45:39,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 44 transitions. [2020-09-25 07:45:39,505 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 44 transitions. Word has length 33 [2020-09-25 07:45:39,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:45:39,506 INFO L479 AbstractCegarLoop]: Abstraction has 36 states and 44 transitions. [2020-09-25 07:45:39,506 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 07:45:39,506 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 44 transitions. [2020-09-25 07:45:39,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-09-25 07:45:39,510 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:45:39,510 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:45:39,512 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 07:45:39,512 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:45:39,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:45:39,512 INFO L82 PathProgramCache]: Analyzing trace with hash 765810174, now seen corresponding path program 1 times [2020-09-25 07:45:39,513 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:45:39,513 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1850367832] [2020-09-25 07:45:39,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:45:39,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:39,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:39,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:39,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:39,825 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:40,113 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:40,115 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-09-25 07:45:40,116 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 07:45:40,116 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 588 [2020-09-25 07:45:40,117 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:40,117 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:40,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 07:45:40,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 07:45:40,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-25 07:45:40,118 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:45:40,139 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:45:40,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:40,144 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:40,145 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:40,147 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:45:40,147 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:45:40,148 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:45:40,148 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:40,149 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:40,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:45:40,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:45:40,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:45:40,151 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 07:45:40,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 07:45:40,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:40,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:40,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:40,358 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:40,408 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:40,657 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:40,657 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-25 07:45:40,658 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 07:45:40,658 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 490 [2020-09-25 07:45:40,658 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:40,658 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:40,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 07:45:40,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 07:45:40,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-25 07:45:40,659 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:45:40,687 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 07:45:40,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:40,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:40,714 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:40,715 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 07:45:40,715 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:45:40,715 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-25 07:45:40,715 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:40,716 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:40,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 07:45:40,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:45:40,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 07:45:40,716 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:45:40,734 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 07:45:40,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:40,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:40,753 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:40,754 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 07:45:40,754 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:45:40,754 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-25 07:45:40,755 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:40,755 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:40,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:45:40,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:45:40,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 07:45:40,757 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:45:40,766 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 9 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-25 07:45:40,768 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1850367832] [2020-09-25 07:45:40,769 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 07:45:40,769 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-09-25 07:45:40,769 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1470132460] [2020-09-25 07:45:40,772 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 07:45:40,772 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:45:40,772 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 07:45:40,773 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-09-25 07:45:40,774 INFO L87 Difference]: Start difference. First operand 36 states and 44 transitions. Second operand 6 states. [2020-09-25 07:45:40,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:45:40,963 INFO L93 Difference]: Finished difference Result 88 states and 137 transitions. [2020-09-25 07:45:40,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 07:45:40,965 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 35 [2020-09-25 07:45:40,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:45:40,973 INFO L225 Difference]: With dead ends: 88 [2020-09-25 07:45:40,973 INFO L226 Difference]: Without dead ends: 58 [2020-09-25 07:45:40,978 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-09-25 07:45:40,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2020-09-25 07:45:41,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 50. [2020-09-25 07:45:41,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2020-09-25 07:45:41,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 69 transitions. [2020-09-25 07:45:41,008 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 69 transitions. Word has length 35 [2020-09-25 07:45:41,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:45:41,011 INFO L479 AbstractCegarLoop]: Abstraction has 50 states and 69 transitions. [2020-09-25 07:45:41,011 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 07:45:41,011 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 69 transitions. [2020-09-25 07:45:41,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-09-25 07:45:41,020 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:45:41,021 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:45:41,021 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 07:45:41,022 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:45:41,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:45:41,025 INFO L82 PathProgramCache]: Analyzing trace with hash 1693530075, now seen corresponding path program 1 times [2020-09-25 07:45:41,026 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:45:41,026 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [60446509] [2020-09-25 07:45:41,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:45:41,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:41,048 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:41,073 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:41,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:41,173 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:41,262 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:41,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:41,465 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:46,045 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:46,045 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 68 [2020-09-25 07:45:46,045 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-25 07:45:46,046 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-09-25 07:45:46,046 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:46,046 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:46,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 07:45:46,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 07:45:46,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-09-25 07:45:46,047 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:45:46,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:45:46,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:46,065 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:46,066 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:46,066 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:45:46,067 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:45:46,067 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:45:46,067 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:46,067 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:46,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:45:46,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:45:46,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:45:46,068 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:45:46,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 07:45:46,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:46,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:46,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:46,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:46,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:46,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:46,752 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:47,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:48,480 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:48,480 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-09-25 07:45:48,480 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-25 07:45:48,481 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2403 [2020-09-25 07:45:48,481 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:48,481 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:48,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 07:45:48,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 07:45:48,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-09-25 07:45:48,482 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:45:48,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 07:45:48,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:48,512 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:48,559 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:48,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:48,779 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:48,780 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 07:45:48,780 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 07:45:48,780 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 270 [2020-09-25 07:45:48,781 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:48,781 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:48,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 07:45:48,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:45:48,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-25 07:45:48,782 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:45:48,798 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 07:45:48,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:48,802 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:48,807 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:48,807 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:45:48,807 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:45:48,808 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 07:45:48,808 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:48,808 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:48,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 07:45:48,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:45:48,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 07:45:48,809 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:45:48,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 07:45:48,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:48,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:48,841 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:48,842 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:45:48,842 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:45:48,842 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 07:45:48,843 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:48,843 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:48,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:45:48,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:45:48,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 07:45:48,844 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:45:48,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-09-25 07:45:48,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:48,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:48,857 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:48,858 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 07:45:48,858 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:45:48,858 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 07:45:48,859 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:48,859 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:48,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:45:48,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:45:48,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 07:45:48,860 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:45:48,870 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 8 proven. 27 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2020-09-25 07:45:48,870 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [60446509] [2020-09-25 07:45:48,870 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 07:45:48,871 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-09-25 07:45:48,871 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2096350419] [2020-09-25 07:45:48,872 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 07:45:48,872 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:45:48,872 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 07:45:48,873 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-09-25 07:45:48,873 INFO L87 Difference]: Start difference. First operand 50 states and 69 transitions. Second operand 8 states. [2020-09-25 07:45:49,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:45:49,047 INFO L93 Difference]: Finished difference Result 132 states and 200 transitions. [2020-09-25 07:45:49,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-25 07:45:49,048 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 51 [2020-09-25 07:45:49,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:45:49,055 INFO L225 Difference]: With dead ends: 132 [2020-09-25 07:45:49,055 INFO L226 Difference]: Without dead ends: 88 [2020-09-25 07:45:49,061 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-09-25 07:45:49,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2020-09-25 07:45:49,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 74. [2020-09-25 07:45:49,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2020-09-25 07:45:49,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 93 transitions. [2020-09-25 07:45:49,096 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 93 transitions. Word has length 51 [2020-09-25 07:45:49,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:45:49,097 INFO L479 AbstractCegarLoop]: Abstraction has 74 states and 93 transitions. [2020-09-25 07:45:49,100 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 07:45:49,100 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 93 transitions. [2020-09-25 07:45:49,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2020-09-25 07:45:49,103 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:45:49,104 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:45:49,109 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 07:45:49,109 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:45:49,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:45:49,110 INFO L82 PathProgramCache]: Analyzing trace with hash 501566307, now seen corresponding path program 2 times [2020-09-25 07:45:49,110 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:45:49,110 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1520995848] [2020-09-25 07:45:49,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:45:49,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:49,133 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:49,169 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:49,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:49,242 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:49,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:49,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:49,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:49,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:52,370 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:52,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:54,132 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:54,132 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-09-25 07:45:54,133 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-09-25 07:45:54,133 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-09-25 07:45:54,133 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:54,134 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:54,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 07:45:54,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-09-25 07:45:54,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-09-25 07:45:54,134 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:45:54,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:45:54,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:54,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:54,167 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:54,167 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:45:54,167 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:45:54,168 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:45:54,168 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:54,168 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:54,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:45:54,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:45:54,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:45:54,169 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:45:54,170 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 07:45:54,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:54,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:54,217 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:54,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:54,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:54,336 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:54,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:54,493 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:55,206 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:55,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:58,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:59,190 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:59,191 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-09-25 07:45:59,191 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-09-25 07:45:59,191 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-09-25 07:45:59,192 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:59,192 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:59,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 07:45:59,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 07:45:59,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-09-25 07:45:59,193 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:45:59,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 07:45:59,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:59,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:59,239 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:59,435 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:59,436 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-25 07:45:59,436 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 07:45:59,437 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 212 [2020-09-25 07:45:59,437 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:59,437 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:59,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 07:45:59,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:45:59,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-25 07:45:59,439 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:45:59,473 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 07:45:59,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:59,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:59,508 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:59,508 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 07:45:59,508 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:45:59,509 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-09-25 07:45:59,509 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:59,509 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:59,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 07:45:59,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:45:59,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 07:45:59,510 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:45:59,536 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 07:45:59,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:59,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:59,555 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:59,556 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:45:59,556 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:45:59,556 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 07:45:59,556 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:59,557 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:59,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:45:59,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:45:59,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 07:45:59,557 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:45:59,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-25 07:45:59,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:59,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:59,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:59,613 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:59,652 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:59,681 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:59,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:02,042 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:46:02,042 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-25 07:46:02,042 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 07:46:02,043 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2476 [2020-09-25 07:46:02,043 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:46:02,043 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:46:02,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 07:46:02,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 07:46:02,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-25 07:46:02,043 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:46:02,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 07:46:02,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:46:02,083 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:02,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:02,115 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:02,180 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:46:02,181 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-25 07:46:02,181 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 07:46:02,181 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 100 [2020-09-25 07:46:02,181 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:46:02,181 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:46:02,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 07:46:02,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:46:02,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-25 07:46:02,182 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:46:02,207 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 07:46:02,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:46:02,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:02,228 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:46:02,228 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 07:46:02,228 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:46:02,228 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-25 07:46:02,228 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:46:02,229 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:46:02,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 07:46:02,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:46:02,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 07:46:02,229 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:46:02,252 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 07:46:02,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:46:02,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:02,260 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:46:02,260 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:46:02,260 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:46:02,261 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 07:46:02,261 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:46:02,261 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:46:02,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:46:02,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:46:02,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 07:46:02,262 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:46:02,264 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-25 07:46:02,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:46:02,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:02,275 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:46:02,275 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 07:46:02,275 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:46:02,276 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 07:46:02,276 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:46:02,276 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:46:02,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:46:02,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:46:02,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 07:46:02,277 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:46:02,310 INFO L134 CoverageAnalysis]: Checked inductivity of 211 backedges. 68 proven. 80 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2020-09-25 07:46:02,310 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1520995848] [2020-09-25 07:46:02,311 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 07:46:02,311 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-09-25 07:46:02,311 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1154842555] [2020-09-25 07:46:02,312 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 07:46:02,312 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:46:02,312 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 07:46:02,312 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2020-09-25 07:46:02,312 INFO L87 Difference]: Start difference. First operand 74 states and 93 transitions. Second operand 10 states. [2020-09-25 07:46:02,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:46:02,610 INFO L93 Difference]: Finished difference Result 218 states and 309 transitions. [2020-09-25 07:46:02,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-25 07:46:02,611 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 87 [2020-09-25 07:46:02,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:46:02,614 INFO L225 Difference]: With dead ends: 218 [2020-09-25 07:46:02,614 INFO L226 Difference]: Without dead ends: 150 [2020-09-25 07:46:02,615 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 24 SyntacticMatches, 2 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=82, Invalid=158, Unknown=0, NotChecked=0, Total=240 [2020-09-25 07:46:02,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2020-09-25 07:46:02,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 116. [2020-09-25 07:46:02,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 116 states. [2020-09-25 07:46:02,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 152 transitions. [2020-09-25 07:46:02,655 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 152 transitions. Word has length 87 [2020-09-25 07:46:02,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:46:02,658 INFO L479 AbstractCegarLoop]: Abstraction has 116 states and 152 transitions. [2020-09-25 07:46:02,658 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 07:46:02,659 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 152 transitions. [2020-09-25 07:46:02,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2020-09-25 07:46:02,661 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:46:02,664 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:46:02,664 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 07:46:02,664 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:46:02,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:46:02,665 INFO L82 PathProgramCache]: Analyzing trace with hash -1607002557, now seen corresponding path program 3 times [2020-09-25 07:46:02,665 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:46:02,665 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [187966069] [2020-09-25 07:46:02,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:46:02,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:46:02,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:02,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:02,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:02,774 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:02,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:02,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:02,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:03,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:04,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:04,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:04,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:04,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:04,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:04,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:04,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:04,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:05,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:05,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:05,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:06,001 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:06,066 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:07,704 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:46:07,704 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 152 [2020-09-25 07:46:07,704 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 21 [2020-09-25 07:46:07,704 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5019 [2020-09-25 07:46:07,705 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:46:07,705 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:46:07,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 07:46:07,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-09-25 07:46:07,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 56 [2020-09-25 07:46:07,706 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:46:07,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:46:07,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:46:07,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:07,722 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:46:07,722 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:46:07,723 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:46:07,723 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:46:07,723 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:46:07,723 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:46:07,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:46:07,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:46:07,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:46:07,724 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:46:07,725 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 07:46:07,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:46:07,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:07,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:07,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:07,819 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:07,878 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:07,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:08,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:08,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:08,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:08,319 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:08,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:09,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:09,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:09,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:09,790 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:12,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:12,760 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:46:12,761 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 138 [2020-09-25 07:46:12,761 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 16 [2020-09-25 07:46:12,761 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5025 [2020-09-25 07:46:12,761 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:46:12,762 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:46:12,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 07:46:12,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-09-25 07:46:12,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-09-25 07:46:12,763 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:46:12,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 07:46:12,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:46:12,790 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:12,802 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:12,819 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:12,910 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:13,459 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:46:13,460 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 53 [2020-09-25 07:46:13,460 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 07:46:13,460 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 673 [2020-09-25 07:46:13,461 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:46:13,461 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:46:13,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 07:46:13,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-09-25 07:46:13,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-09-25 07:46:13,461 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:46:13,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 07:46:13,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:46:13,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:13,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:13,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:13,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:13,733 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:46:13,733 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 07:46:13,733 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 07:46:13,734 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 196 [2020-09-25 07:46:13,734 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:46:13,735 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:46:13,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 07:46:13,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:46:13,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-25 07:46:13,736 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:46:13,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 07:46:13,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:46:13,825 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:13,834 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:46:13,834 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:46:13,835 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:46:13,835 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 07:46:13,835 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:46:13,836 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:46:13,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:46:13,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:46:13,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 07:46:13,837 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:46:13,840 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 07:46:13,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:46:13,844 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:13,852 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:46:13,852 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:46:13,852 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:46:13,853 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 07:46:13,853 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:46:13,853 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:46:13,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:46:13,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:46:13,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 07:46:13,854 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:46:13,859 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-09-25 07:46:13,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:46:13,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:13,869 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:46:13,869 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:46:13,869 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:46:13,869 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 07:46:13,870 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:46:13,870 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:46:13,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 07:46:13,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 07:46:13,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 07:46:13,871 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:46:13,898 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-09-25 07:46:13,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:46:13,911 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:13,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:13,957 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:13,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:14,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:14,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:14,477 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:14,489 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:15,083 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:17,349 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:18,907 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:46:18,908 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-09-25 07:46:18,908 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-09-25 07:46:18,908 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-09-25 07:46:18,908 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:46:18,909 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:46:18,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:46:18,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 72 [2020-09-25 07:46:18,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:46:18,909 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:46:18,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 07:46:18,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:46:18,920 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:18,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:18,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:18,951 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:19,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:19,875 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:46:19,876 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 53 [2020-09-25 07:46:19,876 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 07:46:19,876 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 957 [2020-09-25 07:46:19,876 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:46:19,876 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:46:19,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:46:19,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:46:19,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:46:19,877 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:46:19,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 07:46:19,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:46:19,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:19,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:19,925 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:46:19,926 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 07:46:19,926 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 07:46:19,926 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-09-25 07:46:19,926 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:46:19,926 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:46:19,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:46:19,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:46:19,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:46:19,927 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:46:19,929 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 07:46:19,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:46:19,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:19,934 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:46:19,934 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:46:19,934 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:46:19,934 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:46:19,934 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:46:19,934 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:46:19,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:46:19,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:46:19,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:46:19,935 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:46:19,936 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 07:46:19,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:46:19,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:19,940 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:46:19,941 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:46:19,941 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:46:19,941 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:46:19,941 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:46:19,941 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:46:19,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:46:19,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:46:19,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:46:19,942 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:46:19,944 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-09-25 07:46:19,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:46:19,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:19,948 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:46:19,949 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:46:19,949 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:46:19,949 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:46:19,949 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:46:19,950 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:46:19,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:46:19,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:46:19,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:46:19,950 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:46:19,953 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-09-25 07:46:19,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:46:19,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:19,958 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:46:19,959 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 07:46:19,959 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:46:19,959 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 07:46:19,959 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:46:19,959 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:46:19,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:46:19,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:46:19,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:46:19,960 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:46:19,982 INFO L134 CoverageAnalysis]: Checked inductivity of 453 backedges. 77 proven. 121 refuted. 0 times theorem prover too weak. 255 trivial. 0 not checked. [2020-09-25 07:46:19,983 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [187966069] [2020-09-25 07:46:19,983 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 07:46:19,983 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-09-25 07:46:19,984 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1696832469] [2020-09-25 07:46:19,984 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 07:46:19,985 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:46:19,985 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 07:46:19,985 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-09-25 07:46:19,985 INFO L87 Difference]: Start difference. First operand 116 states and 152 transitions. Second operand 9 states. [2020-09-25 07:46:20,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:46:20,136 INFO L93 Difference]: Finished difference Result 166 states and 231 transitions. [2020-09-25 07:46:20,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 07:46:20,139 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 119 [2020-09-25 07:46:20,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:46:20,140 INFO L225 Difference]: With dead ends: 166 [2020-09-25 07:46:20,140 INFO L226 Difference]: Without dead ends: 51 [2020-09-25 07:46:20,143 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2020-09-25 07:46:20,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2020-09-25 07:46:20,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2020-09-25 07:46:20,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2020-09-25 07:46:20,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 59 transitions. [2020-09-25 07:46:20,157 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 59 transitions. Word has length 119 [2020-09-25 07:46:20,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:46:20,158 INFO L479 AbstractCegarLoop]: Abstraction has 51 states and 59 transitions. [2020-09-25 07:46:20,159 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 07:46:20,159 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 59 transitions. [2020-09-25 07:46:20,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2020-09-25 07:46:20,163 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:46:20,163 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 11, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:46:20,167 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-25 07:46:20,167 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:46:20,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:46:20,168 INFO L82 PathProgramCache]: Analyzing trace with hash 1883941443, now seen corresponding path program 4 times [2020-09-25 07:46:20,168 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:46:20,168 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [8845411] [2020-09-25 07:46:20,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:46:20,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:46:20,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:20,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:20,280 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:20,389 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:20,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:20,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:20,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:20,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:21,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:22,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:22,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:25,189 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:46:25,189 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 156 [2020-09-25 07:46:25,189 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 11 [2020-09-25 07:46:25,190 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-09-25 07:46:25,190 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:46:25,190 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:46:25,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-25 07:46:25,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-09-25 07:46:25,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-25 07:46:25,191 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:46:25,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:46:25,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:46:25,206 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:25,207 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:46:25,207 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:46:25,207 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:46:25,208 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:46:25,208 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:46:25,208 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:46:25,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:46:25,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:46:25,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:46:25,208 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:46:25,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 07:46:25,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:46:25,241 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:25,280 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:25,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:25,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:25,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:25,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:25,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:25,980 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:26,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:26,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:26,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:26,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:26,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:26,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:26,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:30,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:30,232 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:46:30,232 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 142 [2020-09-25 07:46:30,232 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 16 [2020-09-25 07:46:30,232 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-09-25 07:46:30,233 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:46:30,233 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:46:30,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 07:46:30,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 07:46:30,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 100 [2020-09-25 07:46:30,233 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:46:30,252 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 07:46:30,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:46:30,262 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:30,285 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:30,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:31,476 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:46:31,476 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-25 07:46:31,477 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 07:46:31,477 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1219 [2020-09-25 07:46:31,477 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:46:31,477 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:46:31,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 07:46:31,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:46:31,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-09-25 07:46:31,478 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1