/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 SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.2 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem14_label49.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 21:48:50,959 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 21:48:50,963 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 21:48:51,003 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 21:48:51,004 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 21:48:51,012 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 21:48:51,014 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 21:48:51,017 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 21:48:51,020 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 21:48:51,023 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 21:48:51,023 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 21:48:51,024 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 21:48:51,025 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 21:48:51,027 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 21:48:51,029 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 21:48:51,031 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 21:48:51,032 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 21:48:51,033 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 21:48:51,034 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 21:48:51,043 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 21:48:51,045 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 21:48:51,046 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 21:48:51,047 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 21:48:51,048 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 21:48:51,063 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 21:48:51,063 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 21:48:51,064 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 21:48:51,068 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 21:48:51,068 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 21:48:51,069 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 21:48:51,069 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 21:48:51,070 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 21:48:51,073 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 21:48:51,073 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 21:48:51,074 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 21:48:51,075 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 21:48:51,078 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 21:48:51,078 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 21:48:51,078 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 21:48:51,079 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 21:48:51,080 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 21:48:51,082 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 [2020-10-14 21:48:51,118 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 21:48:51,118 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 21:48:51,121 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 21:48:51,121 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 21:48:51,121 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 21:48:51,121 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 21:48:51,122 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 21:48:51,122 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 21:48:51,122 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 21:48:51,122 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 21:48:51,123 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 21:48:51,123 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 21:48:51,124 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 21:48:51,124 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 21:48:51,124 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 21:48:51,124 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 21:48:51,125 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 21:48:51,125 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 21:48:51,125 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 21:48:51,125 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 21:48:51,125 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 21:48:51,126 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 21:48:51,126 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 21:48:51,126 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 21:48:51,126 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 21:48:51,126 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 21:48:51,127 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 21:48:51,127 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 21:48:51,127 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 21:48:51,127 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 -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; [2020-10-14 21:48:51,407 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 21:48:51,426 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 21:48:51,433 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 21:48:51,434 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 21:48:51,436 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 21:48:51,437 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem14_label49.c [2020-10-14 21:48:51,501 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b58c0076c/2ed32b03025944ea880b6d87a48a92ed/FLAG61d23c3ed [2020-10-14 21:48:52,109 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 21:48:52,110 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem14_label49.c [2020-10-14 21:48:52,122 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b58c0076c/2ed32b03025944ea880b6d87a48a92ed/FLAG61d23c3ed [2020-10-14 21:48:52,295 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b58c0076c/2ed32b03025944ea880b6d87a48a92ed [2020-10-14 21:48:52,305 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 21:48:52,307 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 21:48:52,309 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 21:48:52,309 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 21:48:52,313 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 21:48:52,314 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 09:48:52" (1/1) ... [2020-10-14 21:48:52,317 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6317371b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:48:52, skipping insertion in model container [2020-10-14 21:48:52,317 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 09:48:52" (1/1) ... [2020-10-14 21:48:52,325 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 21:48:52,400 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 21:48:53,168 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 21:48:53,177 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 21:48:53,358 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 21:48:53,380 INFO L208 MainTranslator]: Completed translation [2020-10-14 21:48:53,382 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:48:53 WrapperNode [2020-10-14 21:48:53,382 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 21:48:53,383 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 21:48:53,383 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 21:48:53,383 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 21:48:53,398 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:48:53" (1/1) ... [2020-10-14 21:48:53,401 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:48:53" (1/1) ... [2020-10-14 21:48:53,431 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:48:53" (1/1) ... [2020-10-14 21:48:53,431 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:48:53" (1/1) ... [2020-10-14 21:48:53,472 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:48:53" (1/1) ... [2020-10-14 21:48:53,502 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:48:53" (1/1) ... [2020-10-14 21:48:53,514 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:48:53" (1/1) ... [2020-10-14 21:48:53,529 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 21:48:53,530 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 21:48:53,530 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 21:48:53,531 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 21:48:53,532 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:48:53" (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 [2020-10-14 21:48:53,610 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 21:48:53,611 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 21:48:53,611 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-14 21:48:53,611 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 21:48:53,612 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-14 21:48:53,612 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 21:48:53,612 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-14 21:48:53,613 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-14 21:48:53,613 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 21:48:53,613 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 21:48:53,614 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 21:48:55,082 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 21:48:55,082 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-14 21:48:55,089 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 09:48:55 BoogieIcfgContainer [2020-10-14 21:48:55,089 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 21:48:55,090 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 21:48:55,090 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 21:48:55,094 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 21:48:55,094 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 09:48:52" (1/3) ... [2020-10-14 21:48:55,095 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@87d70ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 09:48:55, skipping insertion in model container [2020-10-14 21:48:55,095 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:48:53" (2/3) ... [2020-10-14 21:48:55,096 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@87d70ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 09:48:55, skipping insertion in model container [2020-10-14 21:48:55,096 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 09:48:55" (3/3) ... [2020-10-14 21:48:55,098 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem14_label49.c [2020-10-14 21:48:55,109 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 21:48:55,117 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-14 21:48:55,129 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-14 21:48:55,156 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 21:48:55,156 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 21:48:55,156 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 21:48:55,156 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 21:48:55,156 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 21:48:55,157 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 21:48:55,157 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 21:48:55,157 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 21:48:55,180 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states. [2020-10-14 21:48:55,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-10-14 21:48:55,191 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 21:48:55,192 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 21:48:55,193 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 21:48:55,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 21:48:55,200 INFO L82 PathProgramCache]: Analyzing trace with hash -989018502, now seen corresponding path program 1 times [2020-10-14 21:48:55,209 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 21:48:55,209 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [208388842] [2020-10-14 21:48:55,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 21:48:55,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:48:55,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:48:55,871 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:48:55,871 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-14 21:48:55,872 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:48:55,872 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 494 [2020-10-14 21:48:55,875 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:48:55,876 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:48:55,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 21:48:55,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 21:48:55,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-10-14 21:48:55,877 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-14 21:48:56,003 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 21:48:56,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:48:56,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:48:56,019 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:48:56,019 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 21:48:56,019 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:48:56,020 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 21:48:56,049 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:48:56,050 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:48:56,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:48:56,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:48:56,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 21:48:56,050 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:48:56,085 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 21:48:56,086 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [208388842] [2020-10-14 21:48:56,088 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 21:48:56,088 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-14 21:48:56,089 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1476053881] [2020-10-14 21:48:56,095 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 21:48:56,096 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 21:48:56,112 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 21:48:56,113 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 21:48:56,115 INFO L87 Difference]: Start difference. First operand 254 states. Second operand 5 states. [2020-10-14 21:48:58,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 21:48:58,729 INFO L93 Difference]: Finished difference Result 886 states and 1613 transitions. [2020-10-14 21:48:58,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-14 21:48:58,731 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 65 [2020-10-14 21:48:58,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 21:48:58,752 INFO L225 Difference]: With dead ends: 886 [2020-10-14 21:48:58,752 INFO L226 Difference]: Without dead ends: 564 [2020-10-14 21:48:58,762 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-14 21:48:58,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 564 states. [2020-10-14 21:48:58,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 564 to 558. [2020-10-14 21:48:58,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 558 states. [2020-10-14 21:48:58,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 558 states to 558 states and 906 transitions. [2020-10-14 21:48:58,874 INFO L78 Accepts]: Start accepts. Automaton has 558 states and 906 transitions. Word has length 65 [2020-10-14 21:48:58,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 21:48:58,875 INFO L479 AbstractCegarLoop]: Abstraction has 558 states and 906 transitions. [2020-10-14 21:48:58,875 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 21:48:58,875 INFO L276 IsEmpty]: Start isEmpty. Operand 558 states and 906 transitions. [2020-10-14 21:48:58,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2020-10-14 21:48:58,891 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 21:48:58,892 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 21:48:58,893 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 21:48:58,893 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 21:48:58,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 21:48:58,893 INFO L82 PathProgramCache]: Analyzing trace with hash -1895535210, now seen corresponding path program 1 times [2020-10-14 21:48:58,894 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 21:48:58,896 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [101424209] [2020-10-14 21:48:58,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 21:48:58,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:48:59,005 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:48:59,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:48:59,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:49:01,061 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:49:01,061 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 161 [2020-10-14 21:49:01,061 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 21:49:01,062 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2090 [2020-10-14 21:49:01,062 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:49:01,063 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:49:01,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 21:49:01,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 21:49:01,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 92 [2020-10-14 21:49:01,064 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 21:49:01,126 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 21:49:01,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:49:01,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:49:01,136 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:49:01,136 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 21:49:01,136 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:49:01,137 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 21:49:01,137 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:49:01,137 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:49:01,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:49:01,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:49:01,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 21:49:01,138 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:49:01,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 21:49:01,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:49:01,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:49:01,287 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:49:01,287 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-14 21:49:01,288 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:49:01,288 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 117 [2020-10-14 21:49:01,288 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:49:01,288 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:49:01,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:49:01,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:49:01,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-14 21:49:01,297 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 9 [2020-10-14 21:49:01,409 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 58 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 21:49:01,410 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [101424209] [2020-10-14 21:49:01,410 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 21:49:01,411 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-14 21:49:01,411 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1518586825] [2020-10-14 21:49:01,414 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 21:49:01,414 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 21:49:01,415 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 21:49:01,415 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 21:49:01,415 INFO L87 Difference]: Start difference. First operand 558 states and 906 transitions. Second operand 7 states. [2020-10-14 21:49:03,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 21:49:03,352 INFO L93 Difference]: Finished difference Result 1320 states and 2174 transitions. [2020-10-14 21:49:03,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 21:49:03,353 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 151 [2020-10-14 21:49:03,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 21:49:03,362 INFO L225 Difference]: With dead ends: 1320 [2020-10-14 21:49:03,362 INFO L226 Difference]: Without dead ends: 768 [2020-10-14 21:49:03,365 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 21:49:03,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 768 states. [2020-10-14 21:49:03,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 768 to 566. [2020-10-14 21:49:03,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 566 states. [2020-10-14 21:49:03,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 566 states to 566 states and 819 transitions. [2020-10-14 21:49:03,420 INFO L78 Accepts]: Start accepts. Automaton has 566 states and 819 transitions. Word has length 151 [2020-10-14 21:49:03,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 21:49:03,424 INFO L479 AbstractCegarLoop]: Abstraction has 566 states and 819 transitions. [2020-10-14 21:49:03,424 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 21:49:03,424 INFO L276 IsEmpty]: Start isEmpty. Operand 566 states and 819 transitions. [2020-10-14 21:49:03,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-10-14 21:49:03,428 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 21:49:03,429 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 21:49:03,429 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 21:49:03,429 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 21:49:03,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 21:49:03,430 INFO L82 PathProgramCache]: Analyzing trace with hash 1312068517, now seen corresponding path program 1 times [2020-10-14 21:49:03,430 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 21:49:03,430 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1968645769] [2020-10-14 21:49:03,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 21:49:03,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:49:03,482 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:49:03,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:49:04,366 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:49:04,659 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:49:04,659 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 170 [2020-10-14 21:49:04,659 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 21:49:04,660 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1195 [2020-10-14 21:49:04,660 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:49:04,660 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:49:04,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 21:49:04,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 21:49:04,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 101 [2020-10-14 21:49:04,661 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:49:04,733 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 21:49:04,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:49:04,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:49:04,743 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:49:04,743 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 21:49:04,744 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:49:04,744 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 21:49:04,744 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:49:04,744 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:49:04,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:49:04,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:49:04,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 21:49:04,747 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 21:49:04,762 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 21:49:04,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:49:04,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:49:04,904 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:49:04,904 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-10-14 21:49:04,905 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:49:04,905 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 120 [2020-10-14 21:49:04,905 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:49:04,906 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:49:04,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:49:04,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:49:04,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-10-14 21:49:04,907 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:49:05,104 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 58 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 21:49:05,105 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1968645769] [2020-10-14 21:49:05,105 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 21:49:05,105 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-14 21:49:05,106 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1689525623] [2020-10-14 21:49:05,108 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 21:49:05,108 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 21:49:05,109 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 21:49:05,110 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 21:49:05,110 INFO L87 Difference]: Start difference. First operand 566 states and 819 transitions. Second operand 7 states. [2020-10-14 21:49:07,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 21:49:07,081 INFO L93 Difference]: Finished difference Result 1536 states and 2209 transitions. [2020-10-14 21:49:07,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-14 21:49:07,082 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 160 [2020-10-14 21:49:07,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 21:49:07,090 INFO L225 Difference]: With dead ends: 1536 [2020-10-14 21:49:07,090 INFO L226 Difference]: Without dead ends: 976 [2020-10-14 21:49:07,092 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2020-10-14 21:49:07,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 976 states. [2020-10-14 21:49:07,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 976 to 756. [2020-10-14 21:49:07,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 756 states. [2020-10-14 21:49:07,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 756 states to 756 states and 1033 transitions. [2020-10-14 21:49:07,128 INFO L78 Accepts]: Start accepts. Automaton has 756 states and 1033 transitions. Word has length 160 [2020-10-14 21:49:07,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 21:49:07,129 INFO L479 AbstractCegarLoop]: Abstraction has 756 states and 1033 transitions. [2020-10-14 21:49:07,129 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 21:49:07,129 INFO L276 IsEmpty]: Start isEmpty. Operand 756 states and 1033 transitions. [2020-10-14 21:49:07,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 270 [2020-10-14 21:49:07,133 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 21:49:07,133 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 21:49:07,137 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-14 21:49:07,137 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 21:49:07,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 21:49:07,138 INFO L82 PathProgramCache]: Analyzing trace with hash 589894174, now seen corresponding path program 1 times [2020-10-14 21:49:07,139 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 21:49:07,139 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1844185077] [2020-10-14 21:49:07,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 21:49:07,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:49:07,260 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:49:07,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:49:07,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:49:09,630 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:49:10,974 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:49:12,233 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:49:12,234 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 281 [2020-10-14 21:49:12,234 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 21:49:12,235 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-10-14 21:49:12,236 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:49:12,236 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:49:12,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 21:49:12,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 21:49:12,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 212 [2020-10-14 21:49:12,237 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:49:12,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 21:49:12,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:49:12,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:49:12,309 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:49:12,309 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 21:49:12,310 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:49:12,310 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 21:49:12,310 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:49:12,310 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:49:12,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:49:12,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:49:12,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 21:49:12,311 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:49:12,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 21:49:12,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:49:12,355 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:49:12,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:49:12,490 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:49:12,491 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-14 21:49:12,491 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 21:49:12,491 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 148 [2020-10-14 21:49:12,491 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:49:12,491 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:49:12,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:49:12,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:49:12,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 104 [2020-10-14 21:49:12,492 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:49:12,522 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-10-14 21:49:12,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:49:12,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:49:12,654 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:49:12,654 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-10-14 21:49:12,655 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:49:12,655 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 113 [2020-10-14 21:49:12,655 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:49:12,655 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:49:12,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:49:12,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:49:12,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-10-14 21:49:12,656 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:49:12,869 INFO L134 CoverageAnalysis]: Checked inductivity of 211 backedges. 205 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-14 21:49:12,870 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1844185077] [2020-10-14 21:49:12,870 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 21:49:12,870 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 21:49:12,871 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1024406490] [2020-10-14 21:49:12,871 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 21:49:12,872 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 21:49:12,872 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 21:49:12,872 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 21:49:12,872 INFO L87 Difference]: Start difference. First operand 756 states and 1033 transitions. Second operand 7 states. [2020-10-14 21:49:14,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 21:49:14,671 INFO L93 Difference]: Finished difference Result 1948 states and 2736 transitions. [2020-10-14 21:49:14,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-14 21:49:14,672 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 269 [2020-10-14 21:49:14,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 21:49:14,690 INFO L225 Difference]: With dead ends: 1948 [2020-10-14 21:49:14,690 INFO L226 Difference]: Without dead ends: 1198 [2020-10-14 21:49:14,694 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2020-10-14 21:49:14,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1198 states. [2020-10-14 21:49:14,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1198 to 946. [2020-10-14 21:49:14,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 946 states. [2020-10-14 21:49:14,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 946 states to 946 states and 1294 transitions. [2020-10-14 21:49:14,743 INFO L78 Accepts]: Start accepts. Automaton has 946 states and 1294 transitions. Word has length 269 [2020-10-14 21:49:14,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 21:49:14,745 INFO L479 AbstractCegarLoop]: Abstraction has 946 states and 1294 transitions. [2020-10-14 21:49:14,745 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 21:49:14,745 INFO L276 IsEmpty]: Start isEmpty. Operand 946 states and 1294 transitions. [2020-10-14 21:49:14,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 343 [2020-10-14 21:49:14,751 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 21:49:14,751 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 21:49:14,752 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-14 21:49:14,752 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 21:49:14,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 21:49:14,752 INFO L82 PathProgramCache]: Analyzing trace with hash 788648525, now seen corresponding path program 1 times [2020-10-14 21:49:14,752 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 21:49:14,753 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [475026167] [2020-10-14 21:49:14,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 21:49:14,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:49:14,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:49:14,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:49:15,203 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:49:15,370 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:49:15,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:49:19,831 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:49:19,832 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 356 [2020-10-14 21:49:19,832 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 21:49:19,832 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5029 [2020-10-14 21:49:19,832 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:49:19,833 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:49:19,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:49:19,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 194 [2020-10-14 21:49:19,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-10-14 21:49:19,833 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:49:19,933 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 21:49:19,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:49:19,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:49:19,938 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:49:19,939 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 21:49:19,939 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:49:19,939 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 21:49:19,940 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:49:19,940 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:49:19,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:49:19,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:49:19,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:49:19,940 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:49:19,956 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 21:49:19,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:49:19,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:49:19,992 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:49:19,992 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-14 21:49:19,993 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:49:19,993 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-14 21:49:19,993 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:49:19,993 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:49:19,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:49:19,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:49:19,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:49:19,994 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:49:20,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-10-14 21:49:20,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:49:20,044 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:49:20,083 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:49:20,083 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-14 21:49:20,084 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:49:20,084 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-10-14 21:49:20,084 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:49:20,084 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:49:20,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:49:20,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:49:20,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-10-14 21:49:20,085 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:49:20,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2020-10-14 21:49:20,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:49:20,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:49:20,216 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:49:20,216 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-10-14 21:49:20,217 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:49:20,217 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 97 [2020-10-14 21:49:20,217 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:49:20,217 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:49:20,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:49:20,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:49:20,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-10-14 21:49:20,218 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:49:20,517 INFO L134 CoverageAnalysis]: Checked inductivity of 415 backedges. 341 proven. 2 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2020-10-14 21:49:20,517 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [475026167] [2020-10-14 21:49:20,518 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 21:49:20,518 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 21:49:20,519 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1478384655] [2020-10-14 21:49:20,520 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 21:49:20,520 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 21:49:20,520 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 21:49:20,521 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 21:49:20,521 INFO L87 Difference]: Start difference. First operand 946 states and 1294 transitions. Second operand 7 states. [2020-10-14 21:49:22,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 21:49:22,599 INFO L93 Difference]: Finished difference Result 2276 states and 3088 transitions. [2020-10-14 21:49:22,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 21:49:22,600 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 342 [2020-10-14 21:49:22,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 21:49:22,606 INFO L225 Difference]: With dead ends: 2276 [2020-10-14 21:49:22,606 INFO L226 Difference]: Without dead ends: 960 [2020-10-14 21:49:22,609 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-14 21:49:22,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 960 states. [2020-10-14 21:49:22,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 960 to 942. [2020-10-14 21:49:22,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 942 states. [2020-10-14 21:49:22,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 942 states to 942 states and 1050 transitions. [2020-10-14 21:49:22,634 INFO L78 Accepts]: Start accepts. Automaton has 942 states and 1050 transitions. Word has length 342 [2020-10-14 21:49:22,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 21:49:22,635 INFO L479 AbstractCegarLoop]: Abstraction has 942 states and 1050 transitions. [2020-10-14 21:49:22,635 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 21:49:22,635 INFO L276 IsEmpty]: Start isEmpty. Operand 942 states and 1050 transitions. [2020-10-14 21:49:22,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 440 [2020-10-14 21:49:22,644 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 21:49:22,644 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 21:49:22,645 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-14 21:49:22,645 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 21:49:22,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 21:49:22,645 INFO L82 PathProgramCache]: Analyzing trace with hash -492310878, now seen corresponding path program 1 times [2020-10-14 21:49:22,645 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 21:49:22,646 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1454277575] [2020-10-14 21:49:22,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 21:49:22,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:49:22,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:49:22,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:49:23,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:49:23,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:49:27,726 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:49:27,726 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 453 [2020-10-14 21:49:27,726 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 21:49:27,726 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-10-14 21:49:27,728 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:49:27,728 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:49:27,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:49:27,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 119 [2020-10-14 21:49:27,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 182 [2020-10-14 21:49:27,729 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 21:49:27,808 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 21:49:27,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:49:27,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:49:27,812 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:49:27,813 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 21:49:27,813 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:49:27,813 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 21:49:27,813 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:49:27,813 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:49:27,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:49:27,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:49:27,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:49:27,814 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:49:27,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 21:49:27,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:49:27,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:49:27,930 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:49:27,930 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-14 21:49:27,930 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:49:27,931 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 83 [2020-10-14 21:49:27,931 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:49:27,931 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:49:27,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:49:27,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:49:27,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 104 [2020-10-14 21:49:27,932 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:49:27,965 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-10-14 21:49:28,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:49:28,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:49:28,252 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:49:28,253 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-14 21:49:28,253 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:49:28,253 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 251 [2020-10-14 21:49:28,253 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:49:28,253 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:49:28,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:49:28,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:49:28,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-14 21:49:28,254 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:49:28,367 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2020-10-14 21:49:28,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:49:28,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:49:28,408 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:49:28,409 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-14 21:49:28,409 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:49:28,409 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-14 21:49:28,409 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:49:28,410 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:49:28,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:49:28,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 84 [2020-10-14 21:49:28,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:49:28,410 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:49:28,552 INFO L134 CoverageAnalysis]: Checked inductivity of 455 backedges. 284 proven. 85 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2020-10-14 21:49:28,552 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1454277575] [2020-10-14 21:49:28,552 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 21:49:28,552 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 21:49:28,553 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1546106673] [2020-10-14 21:49:28,554 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 21:49:28,554 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 21:49:28,554 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 21:49:28,554 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 21:49:28,554 INFO L87 Difference]: Start difference. First operand 942 states and 1050 transitions. Second operand 7 states. [2020-10-14 21:49:29,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 21:49:29,739 INFO L93 Difference]: Finished difference Result 2624 states and 2950 transitions. [2020-10-14 21:49:29,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-14 21:49:29,740 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 439 [2020-10-14 21:49:29,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 21:49:29,747 INFO L225 Difference]: With dead ends: 2624 [2020-10-14 21:49:29,748 INFO L226 Difference]: Without dead ends: 1688 [2020-10-14 21:49:29,750 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2020-10-14 21:49:29,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1688 states. [2020-10-14 21:49:29,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1688 to 1502. [2020-10-14 21:49:29,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1502 states. [2020-10-14 21:49:29,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1502 states to 1502 states and 1642 transitions. [2020-10-14 21:49:29,795 INFO L78 Accepts]: Start accepts. Automaton has 1502 states and 1642 transitions. Word has length 439 [2020-10-14 21:49:29,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 21:49:29,796 INFO L479 AbstractCegarLoop]: Abstraction has 1502 states and 1642 transitions. [2020-10-14 21:49:29,796 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 21:49:29,796 INFO L276 IsEmpty]: Start isEmpty. Operand 1502 states and 1642 transitions. [2020-10-14 21:49:29,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 574 [2020-10-14 21:49:29,802 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 21:49:29,803 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 21:49:29,803 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-14 21:49:29,803 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 21:49:29,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 21:49:29,804 INFO L82 PathProgramCache]: Analyzing trace with hash -1119531586, now seen corresponding path program 1 times [2020-10-14 21:49:29,804 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 21:49:29,804 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2106581411] [2020-10-14 21:49:29,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 21:49:29,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:49:29,953 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:49:30,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:49:30,173 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:49:30,291 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:49:34,935 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:49:34,935 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 589 [2020-10-14 21:49:34,935 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 21:49:34,935 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5018 [2020-10-14 21:49:34,935 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:49:34,935 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:49:34,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 21:49:34,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 21:49:34,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 251 [2020-10-14 21:49:34,936 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:49:35,002 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 21:49:35,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:49:35,006 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:49:35,008 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:49:35,009 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 21:49:35,009 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:49:35,009 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 21:49:35,009 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:49:35,009 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:49:35,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:49:35,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:49:35,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 21:49:35,010 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:49:35,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 21:49:35,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:49:35,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:49:35,104 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:49:35,104 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 21:49:35,104 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:49:35,104 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 64 [2020-10-14 21:49:35,104 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:49:35,105 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:49:35,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:49:35,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:49:35,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-14 21:49:35,105 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:49:35,335 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-14 21:49:35,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:49:35,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:49:35,482 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:49:35,482 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 134 [2020-10-14 21:49:35,483 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:49:35,483 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 124 [2020-10-14 21:49:35,483 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:49:35,483 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:49:35,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:49:35,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:49:35,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 134 [2020-10-14 21:49:35,484 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:49:35,617 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2020-10-14 21:49:35,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:49:35,648 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:49:35,682 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:49:35,683 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-14 21:49:35,683 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:49:35,683 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-10-14 21:49:35,683 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:49:35,683 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:49:35,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:49:35,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 177 [2020-10-14 21:49:35,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:49:35,684 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:49:35,714 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 430 [2020-10-14 21:49:35,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:49:35,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:49:35,744 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:49:35,744 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-14 21:49:35,744 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:49:35,745 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-14 21:49:35,745 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:49:35,745 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:49:35,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:49:35,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 84 [2020-10-14 21:49:35,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:49:35,746 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:49:36,411 INFO L134 CoverageAnalysis]: Checked inductivity of 843 backedges. 344 proven. 397 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked. [2020-10-14 21:49:36,411 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2106581411] [2020-10-14 21:49:36,411 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 21:49:36,412 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-14 21:49:36,412 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1304723808] [2020-10-14 21:49:36,413 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 21:49:36,413 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 21:49:36,413 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 21:49:36,413 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-10-14 21:49:36,413 INFO L87 Difference]: Start difference. First operand 1502 states and 1642 transitions. Second operand 8 states. [2020-10-14 21:49:37,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 21:49:37,666 INFO L93 Difference]: Finished difference Result 3010 states and 3302 transitions. [2020-10-14 21:49:37,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 21:49:37,667 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 573 [2020-10-14 21:49:37,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 21:49:37,676 INFO L225 Difference]: With dead ends: 3010 [2020-10-14 21:49:37,676 INFO L226 Difference]: Without dead ends: 1696 [2020-10-14 21:49:37,683 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2020-10-14 21:49:37,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1696 states. [2020-10-14 21:49:37,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1696 to 1684. [2020-10-14 21:49:37,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1684 states. [2020-10-14 21:49:37,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1684 states to 1684 states and 1827 transitions. [2020-10-14 21:49:37,743 INFO L78 Accepts]: Start accepts. Automaton has 1684 states and 1827 transitions. Word has length 573 [2020-10-14 21:49:37,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 21:49:37,744 INFO L479 AbstractCegarLoop]: Abstraction has 1684 states and 1827 transitions. [2020-10-14 21:49:37,744 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 21:49:37,745 INFO L276 IsEmpty]: Start isEmpty. Operand 1684 states and 1827 transitions. [2020-10-14 21:49:37,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 660 [2020-10-14 21:49:37,753 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 21:49:37,754 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 21:49:37,754 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-14 21:49:37,754 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 21:49:37,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 21:49:37,755 INFO L82 PathProgramCache]: Analyzing trace with hash 1817451106, now seen corresponding path program 1 times [2020-10-14 21:49:37,755 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 21:49:37,755 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2116316513] [2020-10-14 21:49:37,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 21:49:37,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:49:37,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:49:38,063 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:49:38,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:49:38,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:49:42,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:49:42,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:49:42,903 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:49:42,903 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 677 [2020-10-14 21:49:42,903 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-14 21:49:42,903 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5040 [2020-10-14 21:49:42,903 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:49:42,903 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:49:42,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 21:49:42,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 231 [2020-10-14 21:49:42,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 294 [2020-10-14 21:49:42,904 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:49:42,970 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 21:49:42,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:49:42,972 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:49:42,974 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:49:42,974 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 21:49:42,974 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:49:42,975 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 21:49:42,975 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:49:42,975 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:49:42,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:49:42,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:49:42,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:49:42,975 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:49:42,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 21:49:42,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:49:42,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:49:43,008 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:49:43,009 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 21:49:43,009 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:49:43,009 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 21:49:43,009 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:49:43,009 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:49:43,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:49:43,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:49:43,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:49:43,010 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:49:43,027 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-14 21:49:43,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:49:43,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:49:43,082 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:49:43,082 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-14 21:49:43,082 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:49:43,082 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-14 21:49:43,082 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:49:43,082 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:49:43,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:49:43,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:49:43,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 104 [2020-10-14 21:49:43,083 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:49:43,099 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-14 21:49:43,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:49:43,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:49:43,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:49:43,225 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:49:43,226 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 21:49:43,226 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 21:49:43,226 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 110 [2020-10-14 21:49:43,226 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:49:43,226 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:49:43,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:49:43,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:49:43,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-10-14 21:49:43,227 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:49:43,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 337 [2020-10-14 21:49:43,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:49:43,282 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:49:43,386 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:49:43,387 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-14 21:49:43,387 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:49:43,387 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 117 [2020-10-14 21:49:43,387 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:49:43,387 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:49:43,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:49:43,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:49:43,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-14 21:49:43,388 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:49:43,454 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 516 [2020-10-14 21:49:43,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:49:43,468 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:49:43,483 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:49:43,483 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-14 21:49:43,483 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:49:43,483 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-14 21:49:43,483 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:49:43,484 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:49:43,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:49:43,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 84 [2020-10-14 21:49:43,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:49:43,484 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:49:43,726 INFO L134 CoverageAnalysis]: Checked inductivity of 1291 backedges. 635 proven. 89 refuted. 0 times theorem prover too weak. 567 trivial. 0 not checked. [2020-10-14 21:49:43,727 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2116316513] [2020-10-14 21:49:43,727 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 21:49:43,727 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-14 21:49:43,728 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1453588088] [2020-10-14 21:49:43,729 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 21:49:43,729 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 21:49:43,729 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 21:49:43,730 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-14 21:49:43,730 INFO L87 Difference]: Start difference. First operand 1684 states and 1827 transitions. Second operand 8 states. [2020-10-14 21:49:45,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 21:49:45,675 INFO L93 Difference]: Finished difference Result 4498 states and 5062 transitions. [2020-10-14 21:49:45,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-14 21:49:45,678 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 659 [2020-10-14 21:49:45,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 21:49:45,693 INFO L225 Difference]: With dead ends: 4498 [2020-10-14 21:49:45,693 INFO L226 Difference]: Without dead ends: 3186 [2020-10-14 21:49:45,698 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2020-10-14 21:49:45,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3186 states. [2020-10-14 21:49:45,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3186 to 2986. [2020-10-14 21:49:45,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2986 states. [2020-10-14 21:49:45,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2986 states to 2986 states and 3259 transitions. [2020-10-14 21:49:45,793 INFO L78 Accepts]: Start accepts. Automaton has 2986 states and 3259 transitions. Word has length 659 [2020-10-14 21:49:45,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 21:49:45,794 INFO L479 AbstractCegarLoop]: Abstraction has 2986 states and 3259 transitions. [2020-10-14 21:49:45,794 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 21:49:45,794 INFO L276 IsEmpty]: Start isEmpty. Operand 2986 states and 3259 transitions. [2020-10-14 21:49:45,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 793 [2020-10-14 21:49:45,813 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 21:49:45,813 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 21:49:45,814 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-14 21:49:45,814 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 21:49:45,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 21:49:45,814 INFO L82 PathProgramCache]: Analyzing trace with hash 746607001, now seen corresponding path program 1 times [2020-10-14 21:49:45,815 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 21:49:45,815 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [103918135] [2020-10-14 21:49:45,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 21:49:45,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:49:45,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:49:46,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:49:46,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:49:46,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:49:50,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:49:50,937 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:49:50,937 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 812 [2020-10-14 21:49:50,937 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 21:49:50,937 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5042 [2020-10-14 21:49:50,937 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:49:50,938 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:49:50,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 21:49:50,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 231 [2020-10-14 21:49:50,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 248 [2020-10-14 21:49:50,938 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:49:51,023 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 21:49:51,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:49:51,026 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:49:51,028 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:49:51,029 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 21:49:51,029 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:49:51,029 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 21:49:51,029 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:49:51,029 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:49:51,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:49:51,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:49:51,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:49:51,030 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:49:51,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 21:49:51,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:49:51,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:49:51,064 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:49:51,065 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 21:49:51,065 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:49:51,065 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-14 21:49:51,065 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:49:51,065 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:49:51,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:49:51,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:49:51,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:49:51,066 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:49:51,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-14 21:49:51,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:49:51,107 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:49:51,145 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:49:51,146 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-14 21:49:51,146 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:49:51,146 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-10-14 21:49:51,146 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:49:51,146 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:49:51,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:49:51,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:49:51,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 104 [2020-10-14 21:49:51,147 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:49:51,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-14 21:49:51,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:49:51,221 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:49:51,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:49:51,296 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:49:51,297 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 21:49:51,297 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 21:49:51,297 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 82 [2020-10-14 21:49:51,297 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:49:51,297 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:49:51,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:49:51,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:49:51,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-10-14 21:49:51,298 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:49:51,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 337 [2020-10-14 21:49:51,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:49:51,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:49:51,420 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:49:51,421 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 134 [2020-10-14 21:49:51,421 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:49:51,421 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 81 [2020-10-14 21:49:51,421 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:49:51,421 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:49:51,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:49:51,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:49:51,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 134 [2020-10-14 21:49:51,422 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:49:51,491 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 470 [2020-10-14 21:49:51,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:49:51,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:49:51,559 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:49:51,560 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-14 21:49:51,560 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:49:51,560 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-10-14 21:49:51,560 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:49:51,560 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:49:51,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:49:51,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 177 [2020-10-14 21:49:51,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:49:51,561 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:49:51,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 649 [2020-10-14 21:49:51,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:49:51,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:49:51,625 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:49:51,625 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-14 21:49:51,625 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:49:51,625 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-14 21:49:51,625 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:49:51,626 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:49:51,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:49:51,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 84 [2020-10-14 21:49:51,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:49:51,626 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:49:52,030 INFO L134 CoverageAnalysis]: Checked inductivity of 1897 backedges. 705 proven. 221 refuted. 0 times theorem prover too weak. 971 trivial. 0 not checked. [2020-10-14 21:49:52,030 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [103918135] [2020-10-14 21:49:52,030 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 21:49:52,031 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-14 21:49:52,031 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [347670983] [2020-10-14 21:49:52,032 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 21:49:52,032 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 21:49:52,032 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 21:49:52,032 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-14 21:49:52,033 INFO L87 Difference]: Start difference. First operand 2986 states and 3259 transitions. Second operand 8 states. [2020-10-14 21:49:53,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 21:49:53,787 INFO L93 Difference]: Finished difference Result 5976 states and 6535 transitions. [2020-10-14 21:49:53,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-14 21:49:53,793 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 792 [2020-10-14 21:49:53,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 21:49:53,808 INFO L225 Difference]: With dead ends: 5976 [2020-10-14 21:49:53,809 INFO L226 Difference]: Without dead ends: 3362 [2020-10-14 21:49:53,816 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=55, Invalid=127, Unknown=0, NotChecked=0, Total=182 [2020-10-14 21:49:53,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3362 states. [2020-10-14 21:49:53,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3362 to 3352. [2020-10-14 21:49:53,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3352 states. [2020-10-14 21:49:53,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3352 states to 3352 states and 3635 transitions. [2020-10-14 21:49:53,893 INFO L78 Accepts]: Start accepts. Automaton has 3352 states and 3635 transitions. Word has length 792 [2020-10-14 21:49:53,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 21:49:53,894 INFO L479 AbstractCegarLoop]: Abstraction has 3352 states and 3635 transitions. [2020-10-14 21:49:53,894 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 21:49:53,894 INFO L276 IsEmpty]: Start isEmpty. Operand 3352 states and 3635 transitions. [2020-10-14 21:49:53,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 826 [2020-10-14 21:49:53,908 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 21:49:53,909 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 21:49:53,909 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-14 21:49:53,909 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 21:49:53,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 21:49:53,910 INFO L82 PathProgramCache]: Analyzing trace with hash 520810970, now seen corresponding path program 1 times [2020-10-14 21:49:53,910 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 21:49:53,911 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1368977495] [2020-10-14 21:49:53,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 21:49:54,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:49:54,158 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:49:54,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:49:54,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:49:58,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:49:59,099 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:49:59,100 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 845 [2020-10-14 21:49:59,100 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 21:49:59,100 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5020 [2020-10-14 21:49:59,100 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:49:59,100 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:49:59,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:49:59,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 511 [2020-10-14 21:49:59,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 182 [2020-10-14 21:49:59,101 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:49:59,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 21:49:59,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:49:59,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:49:59,196 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:49:59,196 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 21:49:59,196 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:49:59,196 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 21:49:59,196 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:49:59,196 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:49:59,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:49:59,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:49:59,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:49:59,197 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:49:59,207 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 21:49:59,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:49:59,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:49:59,232 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:49:59,233 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 21:49:59,233 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:49:59,233 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-14 21:49:59,233 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:49:59,233 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:49:59,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:49:59,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:49:59,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:49:59,234 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:49:59,247 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-14 21:49:59,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:49:59,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:49:59,265 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:49:59,265 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-14 21:49:59,266 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:49:59,266 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 21:49:59,266 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:49:59,266 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:49:59,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:49:59,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:49:59,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:49:59,266 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:49:59,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-14 21:49:59,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:49:59,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:49:59,301 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:49:59,302 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-14 21:49:59,302 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:49:59,302 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 21:49:59,302 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:49:59,302 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:49:59,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:49:59,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:49:59,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:49:59,303 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:49:59,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-14 21:49:59,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:49:59,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:49:59,395 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:49:59,396 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-10-14 21:49:59,396 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:49:59,396 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-10-14 21:49:59,396 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:49:59,396 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:49:59,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:49:59,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:49:59,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 154 [2020-10-14 21:49:59,397 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:49:59,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2020-10-14 21:49:59,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:49:59,453 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:49:59,549 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:49:59,550 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-14 21:49:59,550 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:49:59,550 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 109 [2020-10-14 21:49:59,550 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:49:59,550 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:49:59,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:49:59,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:49:59,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-14 21:49:59,551 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:49:59,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 682 [2020-10-14 21:49:59,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:49:59,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:49:59,638 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:49:59,638 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-14 21:49:59,638 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:49:59,639 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-14 21:49:59,639 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:49:59,639 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:49:59,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:49:59,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 84 [2020-10-14 21:49:59,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:49:59,639 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:50:00,003 INFO L134 CoverageAnalysis]: Checked inductivity of 1937 backedges. 862 proven. 85 refuted. 0 times theorem prover too weak. 990 trivial. 0 not checked. [2020-10-14 21:50:00,003 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1368977495] [2020-10-14 21:50:00,003 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 21:50:00,004 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 21:50:00,004 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [906498261] [2020-10-14 21:50:00,004 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 21:50:00,005 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 21:50:00,005 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 21:50:00,005 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 21:50:00,005 INFO L87 Difference]: Start difference. First operand 3352 states and 3635 transitions. Second operand 7 states. [2020-10-14 21:50:01,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 21:50:01,400 INFO L93 Difference]: Finished difference Result 7274 states and 8006 transitions. [2020-10-14 21:50:01,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 21:50:01,401 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 825 [2020-10-14 21:50:01,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 21:50:01,418 INFO L225 Difference]: With dead ends: 7274 [2020-10-14 21:50:01,418 INFO L226 Difference]: Without dead ends: 4294 [2020-10-14 21:50:01,426 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 21:50:01,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4294 states. [2020-10-14 21:50:01,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4294 to 4092. [2020-10-14 21:50:01,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4092 states. [2020-10-14 21:50:01,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4092 states to 4092 states and 4503 transitions. [2020-10-14 21:50:01,513 INFO L78 Accepts]: Start accepts. Automaton has 4092 states and 4503 transitions. Word has length 825 [2020-10-14 21:50:01,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 21:50:01,514 INFO L479 AbstractCegarLoop]: Abstraction has 4092 states and 4503 transitions. [2020-10-14 21:50:01,515 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 21:50:01,515 INFO L276 IsEmpty]: Start isEmpty. Operand 4092 states and 4503 transitions. [2020-10-14 21:50:01,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 902 [2020-10-14 21:50:01,528 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 21:50:01,529 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 21:50:01,529 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-14 21:50:01,530 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 21:50:01,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 21:50:01,530 INFO L82 PathProgramCache]: Analyzing trace with hash 1090960050, now seen corresponding path program 1 times [2020-10-14 21:50:01,530 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 21:50:01,531 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1621423757] [2020-10-14 21:50:01,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 21:50:01,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:50:01,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:50:02,120 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:50:02,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:50:03,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:50:06,723 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:50:06,724 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 923 [2020-10-14 21:50:06,724 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 21:50:06,724 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5054 [2020-10-14 21:50:06,724 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:50:06,724 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:50:06,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 21:50:06,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 589 [2020-10-14 21:50:06,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 270 [2020-10-14 21:50:06,725 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:50:06,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 21:50:06,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:50:06,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:50:06,837 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:50:06,837 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 21:50:06,838 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:50:06,838 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 21:50:06,838 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:50:06,838 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:50:06,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:50:06,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:50:06,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:50:06,838 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:50:06,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 21:50:06,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:50:06,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:50:06,870 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:50:06,870 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 21:50:06,870 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:50:06,870 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 21:50:06,870 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:50:06,871 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:50:06,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:50:06,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:50:06,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:50:06,871 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:50:06,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-14 21:50:06,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:50:06,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:50:06,905 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:50:06,906 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-14 21:50:06,906 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:50:06,906 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 21:50:06,906 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:50:06,906 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:50:06,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:50:06,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:50:06,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:50:06,907 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:50:06,922 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-14 21:50:06,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:50:06,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:50:06,953 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:50:06,954 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-14 21:50:06,954 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:50:06,954 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-14 21:50:06,954 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:50:06,954 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:50:06,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:50:06,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:50:06,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:50:06,955 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:50:07,060 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-14 21:50:07,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:50:07,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:50:07,110 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:50:07,110 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-10-14 21:50:07,111 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:50:07,111 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-14 21:50:07,111 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:50:07,111 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:50:07,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:50:07,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:50:07,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:50:07,112 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:50:07,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2020-10-14 21:50:07,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:50:07,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:50:07,179 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:50:07,180 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-14 21:50:07,180 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:50:07,180 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-14 21:50:07,180 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:50:07,180 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:50:07,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:50:07,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:50:07,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-14 21:50:07,181 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:50:07,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 579 [2020-10-14 21:50:07,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:50:07,222 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:50:07,348 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:50:07,348 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-14 21:50:07,348 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:50:07,348 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 139 [2020-10-14 21:50:07,349 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:50:07,349 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:50:07,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 21:50:07,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:50:07,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-14 21:50:07,349 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:50:07,415 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 758 [2020-10-14 21:50:07,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:50:07,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:50:07,474 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:50:07,475 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-14 21:50:07,475 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:50:07,475 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-10-14 21:50:07,475 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:50:07,475 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:50:07,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:50:07,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:50:07,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-14 21:50:07,476 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:50:07,960 INFO L134 CoverageAnalysis]: Checked inductivity of 2451 backedges. 1399 proven. 6 refuted. 0 times theorem prover too weak. 1046 trivial. 0 not checked. [2020-10-14 21:50:07,960 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1621423757] [2020-10-14 21:50:07,960 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 21:50:07,961 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-14 21:50:07,961 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1282521324] [2020-10-14 21:50:07,962 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-14 21:50:07,962 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 21:50:07,962 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-14 21:50:07,962 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-10-14 21:50:07,962 INFO L87 Difference]: Start difference. First operand 4092 states and 4503 transitions. Second operand 9 states. [2020-10-14 21:50:10,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 21:50:10,370 INFO L93 Difference]: Finished difference Result 9110 states and 10112 transitions. [2020-10-14 21:50:10,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-14 21:50:10,371 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 901 [2020-10-14 21:50:10,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 21:50:10,393 INFO L225 Difference]: With dead ends: 9110 [2020-10-14 21:50:10,393 INFO L226 Difference]: Without dead ends: 5390 [2020-10-14 21:50:10,402 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=233, Unknown=0, NotChecked=0, Total=306 [2020-10-14 21:50:10,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5390 states. [2020-10-14 21:50:10,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5390 to 5194. [2020-10-14 21:50:10,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5194 states. [2020-10-14 21:50:10,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5194 states to 5194 states and 5728 transitions. [2020-10-14 21:50:10,509 INFO L78 Accepts]: Start accepts. Automaton has 5194 states and 5728 transitions. Word has length 901 [2020-10-14 21:50:10,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 21:50:10,510 INFO L479 AbstractCegarLoop]: Abstraction has 5194 states and 5728 transitions. [2020-10-14 21:50:10,510 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-14 21:50:10,510 INFO L276 IsEmpty]: Start isEmpty. Operand 5194 states and 5728 transitions. [2020-10-14 21:50:10,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 911 [2020-10-14 21:50:10,523 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 21:50:10,524 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 21:50:10,524 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-14 21:50:10,524 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 21:50:10,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 21:50:10,525 INFO L82 PathProgramCache]: Analyzing trace with hash -1920907767, now seen corresponding path program 1 times [2020-10-14 21:50:10,525 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 21:50:10,525 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [790067030] [2020-10-14 21:50:10,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 21:50:10,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:50:10,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:50:11,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:50:11,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:50:12,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:50:15,722 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:50:15,722 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 932 [2020-10-14 21:50:15,722 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 21:50:15,723 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5060 [2020-10-14 21:50:15,723 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:50:15,723 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:50:15,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:50:15,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 511 [2020-10-14 21:50:15,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-14 21:50:15,724 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:50:15,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 21:50:15,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:50:15,802 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:50:15,804 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:50:15,804 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 21:50:15,804 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:50:15,805 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 21:50:15,805 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:50:15,805 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:50:15,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:50:15,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:50:15,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:50:15,806 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:50:15,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 21:50:15,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:50:15,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:50:15,845 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:50:15,845 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 21:50:15,845 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:50:15,845 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-14 21:50:15,845 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:50:15,846 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:50:15,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:50:15,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:50:15,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:50:15,846 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:50:15,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-14 21:50:15,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:50:15,866 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:50:15,880 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:50:15,880 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-14 21:50:15,881 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:50:15,881 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-14 21:50:15,881 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:50:15,881 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:50:15,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:50:15,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:50:15,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:50:15,881 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:50:15,900 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-14 21:50:15,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:50:15,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:50:15,922 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:50:15,923 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-14 21:50:15,923 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:50:15,923 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-14 21:50:15,923 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:50:15,923 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:50:15,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:50:15,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:50:15,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:50:15,923 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:50:15,942 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-14 21:50:15,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:50:15,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:50:16,035 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:50:16,035 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-10-14 21:50:16,036 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:50:16,036 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 68 [2020-10-14 21:50:16,036 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:50:16,036 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:50:16,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:50:16,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:50:16,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 154 [2020-10-14 21:50:16,037 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:50:16,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2020-10-14 21:50:16,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:50:16,106 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:50:16,145 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:50:16,145 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-14 21:50:16,145 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:50:16,145 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-14 21:50:16,145 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:50:16,145 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:50:16,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:50:16,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:50:16,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-14 21:50:16,146 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:50:16,182 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 579 [2020-10-14 21:50:16,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:50:16,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:50:16,263 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:50:16,263 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-14 21:50:16,263 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:50:16,263 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-10-14 21:50:16,263 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:50:16,263 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:50:16,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:50:16,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 177 [2020-10-14 21:50:16,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:50:16,264 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:50:16,305 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 758 [2020-10-14 21:50:16,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:50:16,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:50:16,337 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:50:16,337 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-10-14 21:50:16,337 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:50:16,337 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-14 21:50:16,338 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:50:16,338 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:50:16,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:50:16,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 93 [2020-10-14 21:50:16,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:50:16,338 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:50:16,734 INFO L134 CoverageAnalysis]: Checked inductivity of 2496 backedges. 745 proven. 148 refuted. 0 times theorem prover too weak. 1603 trivial. 0 not checked. [2020-10-14 21:50:16,734 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [790067030] [2020-10-14 21:50:16,735 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 21:50:16,735 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-14 21:50:16,735 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2102599306] [2020-10-14 21:50:16,736 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 21:50:16,736 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 21:50:16,736 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 21:50:16,736 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-14 21:50:16,736 INFO L87 Difference]: Start difference. First operand 5194 states and 5728 transitions. Second operand 8 states. [2020-10-14 21:50:18,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 21:50:18,536 INFO L93 Difference]: Finished difference Result 13146 states and 14806 transitions. [2020-10-14 21:50:18,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 21:50:18,536 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 910 [2020-10-14 21:50:18,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 21:50:18,566 INFO L225 Difference]: With dead ends: 13146 [2020-10-14 21:50:18,566 INFO L226 Difference]: Without dead ends: 8324 [2020-10-14 21:50:18,583 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=129, Unknown=0, NotChecked=0, Total=182 [2020-10-14 21:50:18,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8324 states. [2020-10-14 21:50:18,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8324 to 7956. [2020-10-14 21:50:18,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7956 states. [2020-10-14 21:50:18,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7956 states to 7956 states and 8884 transitions. [2020-10-14 21:50:18,740 INFO L78 Accepts]: Start accepts. Automaton has 7956 states and 8884 transitions. Word has length 910 [2020-10-14 21:50:18,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 21:50:18,741 INFO L479 AbstractCegarLoop]: Abstraction has 7956 states and 8884 transitions. [2020-10-14 21:50:18,741 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 21:50:18,741 INFO L276 IsEmpty]: Start isEmpty. Operand 7956 states and 8884 transitions. [2020-10-14 21:50:18,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 929 [2020-10-14 21:50:18,758 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 21:50:18,759 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 21:50:18,759 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-14 21:50:18,759 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 21:50:18,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 21:50:18,760 INFO L82 PathProgramCache]: Analyzing trace with hash 1362327757, now seen corresponding path program 1 times [2020-10-14 21:50:18,760 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 21:50:18,760 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [192048599] [2020-10-14 21:50:18,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 21:50:18,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:50:19,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:50:19,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:50:21,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:50:21,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:50:22,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:50:23,963 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:50:23,963 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 950 [2020-10-14 21:50:23,963 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 21:50:23,963 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5010 [2020-10-14 21:50:23,963 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:50:23,963 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:50:23,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:50:23,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 350 [2020-10-14 21:50:23,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-14 21:50:23,964 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:50:24,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 21:50:24,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:50:24,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:50:24,058 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:50:24,059 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 21:50:24,059 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:50:24,059 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 21:50:24,059 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:50:24,059 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:50:24,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:50:24,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:50:24,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:50:24,060 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:50:24,072 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 21:50:24,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:50:24,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:50:24,102 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:50:24,103 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 21:50:24,103 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:50:24,103 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-14 21:50:24,103 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:50:24,103 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:50:24,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:50:24,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:50:24,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:50:24,104 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:50:24,120 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-14 21:50:24,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:50:24,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:50:24,139 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:50:24,140 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-14 21:50:24,140 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:50:24,140 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 21:50:24,140 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:50:24,140 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:50:24,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:50:24,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:50:24,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:50:24,141 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:50:24,155 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-14 21:50:24,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:50:24,177 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:50:24,209 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:50:24,209 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-14 21:50:24,209 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:50:24,209 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-14 21:50:24,209 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:50:24,210 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:50:24,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:50:24,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:50:24,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 112 [2020-10-14 21:50:24,210 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:50:24,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-14 21:50:24,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:50:24,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:50:24,413 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:50:24,413 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-14 21:50:24,413 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:50:24,413 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 155 [2020-10-14 21:50:24,413 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:50:24,414 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:50:24,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:50:24,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:50:24,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 178 [2020-10-14 21:50:24,414 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:50:24,507 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 521 [2020-10-14 21:50:24,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:50:24,518 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:50:24,530 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:50:24,530 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-14 21:50:24,530 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:50:24,530 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-14 21:50:24,530 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:50:24,530 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:50:24,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:50:24,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 74 [2020-10-14 21:50:24,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:50:24,531 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:50:24,540 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 597 [2020-10-14 21:50:24,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:50:24,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:50:24,613 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:50:24,613 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-14 21:50:24,613 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:50:24,613 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-10-14 21:50:24,614 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:50:24,614 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:50:24,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:50:24,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 177 [2020-10-14 21:50:24,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:50:24,614 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:50:24,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 776 [2020-10-14 21:50:24,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:50:24,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:50:24,675 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:50:24,676 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-10-14 21:50:24,676 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:50:24,676 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-14 21:50:24,676 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:50:24,676 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:50:24,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:50:24,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 93 [2020-10-14 21:50:24,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:50:24,676 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:50:25,268 INFO L134 CoverageAnalysis]: Checked inductivity of 2514 backedges. 779 proven. 341 refuted. 0 times theorem prover too weak. 1394 trivial. 0 not checked. [2020-10-14 21:50:25,269 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [192048599] [2020-10-14 21:50:25,269 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 21:50:25,269 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 21:50:25,269 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1155258353] [2020-10-14 21:50:25,270 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 21:50:25,270 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 21:50:25,270 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 21:50:25,270 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 21:50:25,271 INFO L87 Difference]: Start difference. First operand 7956 states and 8884 transitions. Second operand 7 states. [2020-10-14 21:50:26,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 21:50:26,715 INFO L93 Difference]: Finished difference Result 15722 states and 17592 transitions. [2020-10-14 21:50:26,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-14 21:50:26,716 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 928 [2020-10-14 21:50:26,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 21:50:26,739 INFO L225 Difference]: With dead ends: 15722 [2020-10-14 21:50:26,740 INFO L226 Difference]: Without dead ends: 8138 [2020-10-14 21:50:26,760 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2020-10-14 21:50:26,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8138 states. [2020-10-14 21:50:26,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8138 to 7774. [2020-10-14 21:50:26,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7774 states. [2020-10-14 21:50:26,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7774 states to 7774 states and 8627 transitions. [2020-10-14 21:50:26,916 INFO L78 Accepts]: Start accepts. Automaton has 7774 states and 8627 transitions. Word has length 928 [2020-10-14 21:50:26,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 21:50:26,917 INFO L479 AbstractCegarLoop]: Abstraction has 7774 states and 8627 transitions. [2020-10-14 21:50:26,917 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 21:50:26,917 INFO L276 IsEmpty]: Start isEmpty. Operand 7774 states and 8627 transitions. [2020-10-14 21:50:26,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 959 [2020-10-14 21:50:26,936 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 21:50:26,937 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 21:50:26,937 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-14 21:50:26,938 INFO L427 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 21:50:26,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 21:50:26,938 INFO L82 PathProgramCache]: Analyzing trace with hash -1015225055, now seen corresponding path program 1 times [2020-10-14 21:50:26,939 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 21:50:26,940 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1716021917] [2020-10-14 21:50:26,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 21:50:27,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:50:27,282 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:50:27,512 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:50:27,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:50:28,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:50:32,179 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:50:32,180 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 980 [2020-10-14 21:50:32,180 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 21:50:32,180 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5048 [2020-10-14 21:50:32,180 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:50:32,180 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:50:32,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:50:32,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 646 [2020-10-14 21:50:32,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 182 [2020-10-14 21:50:32,181 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:50:32,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 21:50:32,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:50:32,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:50:32,300 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:50:32,300 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 21:50:32,300 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:50:32,300 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 21:50:32,300 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:50:32,301 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:50:32,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:50:32,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:50:32,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:50:32,301 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:50:32,311 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 21:50:32,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:50:32,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:50:32,331 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:50:32,332 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 21:50:32,332 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:50:32,332 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 21:50:32,332 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:50:32,332 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:50:32,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:50:32,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:50:32,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:50:32,332 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:50:32,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-14 21:50:32,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:50:32,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:50:32,365 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:50:32,365 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-14 21:50:32,365 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:50:32,366 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 21:50:32,366 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:50:32,366 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:50:32,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:50:32,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:50:32,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:50:32,366 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:50:32,387 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-14 21:50:32,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:50:32,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:50:32,411 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:50:32,411 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-14 21:50:32,411 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:50:32,411 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-14 21:50:32,411 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:50:32,412 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:50:32,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:50:32,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:50:32,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:50:32,412 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:50:32,428 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-14 21:50:32,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:50:32,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:50:32,456 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:50:32,456 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-10-14 21:50:32,456 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:50:32,456 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-14 21:50:32,456 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:50:32,456 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:50:32,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:50:32,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:50:32,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:50:32,457 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:50:32,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2020-10-14 21:50:32,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:50:32,505 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:50:32,547 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:50:32,547 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 134 [2020-10-14 21:50:32,547 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:50:32,547 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-10-14 21:50:32,547 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:50:32,547 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:50:32,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:50:32,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:50:32,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 128 [2020-10-14 21:50:32,548 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:50:32,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 636 [2020-10-14 21:50:32,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:50:32,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:50:32,707 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:50:32,708 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-14 21:50:32,708 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:50:32,708 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 112 [2020-10-14 21:50:32,708 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:50:32,708 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:50:32,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:50:32,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:50:32,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-14 21:50:32,708 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:50:32,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 815 [2020-10-14 21:50:32,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:50:32,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:50:32,875 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:50:32,875 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-14 21:50:32,875 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:50:32,875 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-14 21:50:32,875 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:50:32,875 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:50:32,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:50:32,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 84 [2020-10-14 21:50:32,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:50:32,876 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:50:33,267 INFO L134 CoverageAnalysis]: Checked inductivity of 2683 backedges. 1059 proven. 85 refuted. 0 times theorem prover too weak. 1539 trivial. 0 not checked. [2020-10-14 21:50:33,267 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1716021917] [2020-10-14 21:50:33,267 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 21:50:33,267 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-14 21:50:33,268 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1958280612] [2020-10-14 21:50:33,268 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 21:50:33,269 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 21:50:33,269 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 21:50:33,269 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-14 21:50:33,269 INFO L87 Difference]: Start difference. First operand 7774 states and 8627 transitions. Second operand 8 states. [2020-10-14 21:50:35,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 21:50:35,455 INFO L93 Difference]: Finished difference Result 16470 states and 18355 transitions. [2020-10-14 21:50:35,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-14 21:50:35,461 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 958 [2020-10-14 21:50:35,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 21:50:35,485 INFO L225 Difference]: With dead ends: 16470 [2020-10-14 21:50:35,486 INFO L226 Difference]: Without dead ends: 8884 [2020-10-14 21:50:35,503 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=53, Invalid=129, Unknown=0, NotChecked=0, Total=182 [2020-10-14 21:50:35,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8884 states. [2020-10-14 21:50:35,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8884 to 6880. [2020-10-14 21:50:35,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6880 states. [2020-10-14 21:50:35,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6880 states to 6880 states and 7655 transitions. [2020-10-14 21:50:35,673 INFO L78 Accepts]: Start accepts. Automaton has 6880 states and 7655 transitions. Word has length 958 [2020-10-14 21:50:35,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 21:50:35,674 INFO L479 AbstractCegarLoop]: Abstraction has 6880 states and 7655 transitions. [2020-10-14 21:50:35,675 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 21:50:35,675 INFO L276 IsEmpty]: Start isEmpty. Operand 6880 states and 7655 transitions. [2020-10-14 21:50:35,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1010 [2020-10-14 21:50:35,700 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 21:50:35,702 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 21:50:35,703 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-14 21:50:35,703 INFO L427 AbstractCegarLoop]: === Iteration 15 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 21:50:35,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 21:50:35,704 INFO L82 PathProgramCache]: Analyzing trace with hash 1553929782, now seen corresponding path program 1 times [2020-10-14 21:50:35,704 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 21:50:35,704 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1450116075] [2020-10-14 21:50:35,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 21:50:35,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:50:36,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:50:36,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:50:38,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:50:41,004 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:50:41,004 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1033 [2020-10-14 21:50:41,004 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 21:50:41,004 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5040 [2020-10-14 21:50:41,004 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:50:41,005 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:50:41,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:50:41,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 871 [2020-10-14 21:50:41,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-10-14 21:50:41,005 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:50:41,111 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 21:50:41,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:50:41,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:50:41,114 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:50:41,115 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 21:50:41,115 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:50:41,115 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 21:50:41,115 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:50:41,115 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:50:41,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:50:41,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:50:41,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:50:41,116 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:50:41,133 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 21:50:41,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:50:41,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:50:41,159 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:50:41,159 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 21:50:41,159 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:50:41,159 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-14 21:50:41,160 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:50:41,160 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:50:41,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:50:41,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:50:41,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:50:41,161 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:50:41,182 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-14 21:50:41,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:50:41,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:50:41,211 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:50:41,211 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-14 21:50:41,211 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:50:41,211 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-14 21:50:41,212 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:50:41,212 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:50:41,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:50:41,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:50:41,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:50:41,212 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:50:41,235 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-14 21:50:41,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:50:41,242 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:50:41,264 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:50:41,265 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-14 21:50:41,265 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:50:41,265 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-14 21:50:41,265 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:50:41,265 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:50:41,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:50:41,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:50:41,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:50:41,266 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:50:41,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-14 21:50:41,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:50:41,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:50:41,310 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:50:41,311 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-14 21:50:41,311 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:50:41,311 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-14 21:50:41,311 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:50:41,312 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:50:41,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:50:41,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:50:41,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:50:41,312 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:50:41,326 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-14 21:50:41,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:50:41,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:50:41,390 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:50:41,390 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-14 21:50:41,391 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:50:41,391 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-10-14 21:50:41,391 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:50:41,391 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:50:41,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:50:41,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:50:41,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:50:41,392 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:50:41,462 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-14 21:50:41,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:50:41,469 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:50:41,487 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:50:41,488 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-14 21:50:41,488 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:50:41,488 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-14 21:50:41,488 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:50:41,489 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:50:41,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:50:41,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:50:41,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:50:41,490 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:50:41,509 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-14 21:50:41,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:50:41,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:50:41,651 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:50:41,651 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-14 21:50:41,651 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:50:41,651 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 101 [2020-10-14 21:50:41,652 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:50:41,652 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:50:41,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:50:41,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:50:41,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 174 [2020-10-14 21:50:41,652 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:50:41,703 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-14 21:50:41,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:50:41,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:50:41,786 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:50:41,786 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-10-14 21:50:41,786 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:50:41,786 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 70 [2020-10-14 21:50:41,786 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:50:41,786 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:50:41,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:50:41,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:50:41,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-10-14 21:50:41,787 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:50:42,495 INFO L134 CoverageAnalysis]: Checked inductivity of 3134 backedges. 1105 proven. 2 refuted. 0 times theorem prover too weak. 2027 trivial. 0 not checked. [2020-10-14 21:50:42,496 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1450116075] [2020-10-14 21:50:42,496 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 21:50:42,496 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 21:50:42,496 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1680780362] [2020-10-14 21:50:42,497 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 21:50:42,497 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 21:50:42,497 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 21:50:42,497 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 21:50:42,498 INFO L87 Difference]: Start difference. First operand 6880 states and 7655 transitions. Second operand 7 states. [2020-10-14 21:50:43,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 21:50:43,967 INFO L93 Difference]: Finished difference Result 13568 states and 15118 transitions. [2020-10-14 21:50:43,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-14 21:50:43,972 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1009 [2020-10-14 21:50:43,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 21:50:43,997 INFO L225 Difference]: With dead ends: 13568 [2020-10-14 21:50:43,997 INFO L226 Difference]: Without dead ends: 6878 [2020-10-14 21:50:44,010 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2020-10-14 21:50:44,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6878 states. [2020-10-14 21:50:44,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6878 to 6878. [2020-10-14 21:50:44,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6878 states. [2020-10-14 21:50:44,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6878 states to 6878 states and 7540 transitions. [2020-10-14 21:50:44,120 INFO L78 Accepts]: Start accepts. Automaton has 6878 states and 7540 transitions. Word has length 1009 [2020-10-14 21:50:44,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 21:50:44,121 INFO L479 AbstractCegarLoop]: Abstraction has 6878 states and 7540 transitions. [2020-10-14 21:50:44,121 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 21:50:44,121 INFO L276 IsEmpty]: Start isEmpty. Operand 6878 states and 7540 transitions. [2020-10-14 21:50:44,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1240 [2020-10-14 21:50:44,144 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 21:50:44,145 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 5, 5, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 21:50:44,145 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-14 21:50:44,146 INFO L427 AbstractCegarLoop]: === Iteration 16 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 21:50:44,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 21:50:44,146 INFO L82 PathProgramCache]: Analyzing trace with hash 1072068586, now seen corresponding path program 1 times [2020-10-14 21:50:44,147 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 21:50:44,147 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2037500053] [2020-10-14 21:50:44,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 21:50:44,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:50:44,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:50:45,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:50:45,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:50:49,482 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:50:49,483 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1267 [2020-10-14 21:50:49,483 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 21:50:49,483 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5075 [2020-10-14 21:50:49,483 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:50:49,483 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:50:49,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-14 21:50:49,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 690 [2020-10-14 21:50:49,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 416 [2020-10-14 21:50:49,483 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:50:49,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 21:50:49,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:50:49,605 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:50:49,606 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:50:49,607 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 21:50:49,607 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:50:49,607 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 21:50:49,607 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:50:49,607 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:50:49,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:50:49,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:50:49,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:50:49,608 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:50:49,619 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 21:50:49,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:50:49,626 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:50:49,639 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:50:49,639 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 21:50:49,639 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:50:49,640 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-14 21:50:49,640 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:50:49,640 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:50:49,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:50:49,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:50:49,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:50:49,640 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:50:49,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-14 21:50:49,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:50:49,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:50:49,675 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:50:49,676 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-14 21:50:49,676 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:50:49,676 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-14 21:50:49,676 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:50:49,676 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:50:49,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:50:49,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:50:49,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:50:49,677 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:50:49,692 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-14 21:50:49,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:50:49,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:50:49,718 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:50:49,718 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-14 21:50:49,718 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:50:49,718 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-14 21:50:49,718 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:50:49,718 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:50:49,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:50:49,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:50:49,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:50:49,719 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:50:49,737 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-14 21:50:49,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:50:49,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:50:49,754 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:50:49,754 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-14 21:50:49,755 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:50:49,755 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-14 21:50:49,755 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:50:49,755 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:50:49,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:50:49,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:50:49,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:50:49,755 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:50:49,765 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-14 21:50:49,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:50:49,773 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:50:49,798 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:50:49,798 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-14 21:50:49,798 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:50:49,798 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-14 21:50:49,798 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:50:49,798 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:50:49,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:50:49,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:50:49,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:50:49,799 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:50:49,842 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-14 21:50:49,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:50:49,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:50:49,879 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:50:49,879 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-14 21:50:49,880 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:50:49,880 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-14 21:50:49,880 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:50:49,880 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:50:49,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:50:49,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:50:49,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-14 21:50:49,880 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:50:49,891 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-14 21:50:49,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:50:49,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:50:50,070 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:50:50,071 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-14 21:50:50,071 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:50:50,071 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 159 [2020-10-14 21:50:50,071 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:50:50,071 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:50:50,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 21:50:50,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:50:50,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-14 21:50:50,072 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:50:50,137 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-14 21:50:50,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:50:50,158 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:50:50,217 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:50:50,218 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-14 21:50:50,218 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:50:50,218 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 66 [2020-10-14 21:50:50,218 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:50:50,218 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:50:50,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:50:50,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:50:50,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 119 [2020-10-14 21:50:50,219 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:50:50,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 975 [2020-10-14 21:50:50,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:50:50,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:50:50,370 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:50:50,370 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-14 21:50:50,370 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:50:50,370 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 84 [2020-10-14 21:50:50,370 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:50:50,371 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:50:50,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:50:50,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:50:50,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 113 [2020-10-14 21:50:50,371 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:50:50,459 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1087 [2020-10-14 21:50:50,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:50:50,476 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:50:50,492 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:50:50,492 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-10-14 21:50:50,492 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:50:50,492 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-14 21:50:50,492 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:50:50,493 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:50:50,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:50:50,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 93 [2020-10-14 21:50:50,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:50:50,494 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:50:51,676 INFO L134 CoverageAnalysis]: Checked inductivity of 4993 backedges. 2603 proven. 494 refuted. 0 times theorem prover too weak. 1896 trivial. 0 not checked. [2020-10-14 21:50:51,677 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2037500053] [2020-10-14 21:50:51,677 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 21:50:51,677 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-10-14 21:50:51,678 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1490305552] [2020-10-14 21:50:51,679 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-14 21:50:51,679 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 21:50:51,679 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-14 21:50:51,679 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2020-10-14 21:50:51,680 INFO L87 Difference]: Start difference. First operand 6878 states and 7540 transitions. Second operand 11 states. [2020-10-14 21:50:54,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 21:50:54,349 INFO L93 Difference]: Finished difference Result 14666 states and 16083 transitions. [2020-10-14 21:50:54,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-14 21:50:54,349 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 1239 [2020-10-14 21:50:54,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 21:50:54,366 INFO L225 Difference]: With dead ends: 14666 [2020-10-14 21:50:54,366 INFO L226 Difference]: Without dead ends: 7978 [2020-10-14 21:50:54,379 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=130, Invalid=376, Unknown=0, NotChecked=0, Total=506 [2020-10-14 21:50:54,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7978 states. [2020-10-14 21:50:54,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7978 to 7060. [2020-10-14 21:50:54,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7060 states. [2020-10-14 21:50:54,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7060 states to 7060 states and 7728 transitions. [2020-10-14 21:50:54,504 INFO L78 Accepts]: Start accepts. Automaton has 7060 states and 7728 transitions. Word has length 1239 [2020-10-14 21:50:54,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 21:50:54,505 INFO L479 AbstractCegarLoop]: Abstraction has 7060 states and 7728 transitions. [2020-10-14 21:50:54,505 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-14 21:50:54,505 INFO L276 IsEmpty]: Start isEmpty. Operand 7060 states and 7728 transitions. [2020-10-14 21:50:54,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1466 [2020-10-14 21:50:54,533 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 21:50:54,534 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 7, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-14 21:50:54,534 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-14 21:50:54,535 INFO L427 AbstractCegarLoop]: === Iteration 17 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 21:50:54,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 21:50:54,535 INFO L82 PathProgramCache]: Analyzing trace with hash -1075272458, now seen corresponding path program 1 times [2020-10-14 21:50:54,535 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 21:50:54,536 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1722494470] [2020-10-14 21:50:54,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 21:50:54,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:50:55,106 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:50:56,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:50:56,403 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:50:56,403 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1495 [2020-10-14 21:50:56,403 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 21:50:56,403 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1571 [2020-10-14 21:50:56,403 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:50:56,403 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:50:56,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:50:56,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1430 [2020-10-14 21:50:56,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-14 21:50:56,404 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:50:56,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 21:50:56,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:50:56,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:50:56,557 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:50:56,558 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 21:50:56,558 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:50:56,558 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 21:50:56,558 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:50:56,558 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:50:56,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:50:56,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:50:56,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:50:56,559 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:50:56,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 21:50:56,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:50:56,578 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:50:56,593 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:50:56,593 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 21:50:56,593 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:50:56,593 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-14 21:50:56,594 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:50:56,594 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:50:56,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:50:56,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:50:56,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:50:56,594 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:50:56,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-14 21:50:56,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:50:56,614 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:50:56,628 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:50:56,628 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-14 21:50:56,628 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:50:56,628 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 21:50:56,629 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:50:56,629 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:50:56,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:50:56,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:50:56,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:50:56,629 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:50:56,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-14 21:50:56,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:50:56,648 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:50:56,663 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:50:56,663 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-14 21:50:56,664 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:50:56,664 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-14 21:50:56,664 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:50:56,664 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:50:56,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:50:56,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:50:56,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:50:56,664 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:50:56,680 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-14 21:50:56,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:50:56,693 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:50:56,703 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:50:56,703 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-14 21:50:56,703 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:50:56,704 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 21:50:56,704 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:50:56,704 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:50:56,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:50:56,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:50:56,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:50:56,704 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:50:56,714 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-14 21:50:56,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:50:56,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:50:56,759 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:50:56,760 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-14 21:50:56,760 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:50:56,760 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-14 21:50:56,760 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:50:56,760 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:50:56,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:50:56,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:50:56,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:50:56,761 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:50:56,804 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-14 21:50:56,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:50:56,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:50:56,817 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:50:56,817 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-14 21:50:56,817 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:50:56,817 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 21:50:56,817 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:50:56,818 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:50:56,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:50:56,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:50:56,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:50:56,818 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:50:56,828 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-14 21:50:56,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:50:56,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:50:56,861 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:50:56,862 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-14 21:50:56,862 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:50:56,862 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-14 21:50:56,862 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:50:56,862 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:50:56,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:50:56,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:50:56,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:50:56,863 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:50:56,893 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-14 21:50:56,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:50:56,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:50:56,915 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:50:56,915 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-14 21:50:56,915 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:50:56,915 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-14 21:50:56,916 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:50:56,916 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:50:56,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:50:56,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:50:56,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:50:56,916 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:50:56,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 975 [2020-10-14 21:50:56,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:50:56,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:50:56,963 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:50:56,964 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-14 21:50:56,964 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:50:56,964 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-14 21:50:56,964 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:50:56,964 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:50:56,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:50:56,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:50:56,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:50:56,965 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:50:56,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1115 [2020-10-14 21:50:56,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:50:56,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:50:57,023 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:50:57,023 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 183 [2020-10-14 21:50:57,023 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:50:57,023 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-14 21:50:57,023 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:50:57,023 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:50:57,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:50:57,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:50:57,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:50:57,024 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:50:57,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1297 [2020-10-14 21:50:57,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:50:57,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:50:57,120 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:50:57,120 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-10-14 21:50:57,120 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:50:57,120 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-10-14 21:50:57,120 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:50:57,121 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:50:57,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:50:57,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:50:57,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 106 [2020-10-14 21:50:57,121 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:50:57,968 INFO L134 CoverageAnalysis]: Checked inductivity of 6445 backedges. 657 proven. 11 refuted. 0 times theorem prover too weak. 5777 trivial. 0 not checked. [2020-10-14 21:50:57,968 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1722494470] [2020-10-14 21:50:57,969 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 21:50:57,969 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 21:50:57,969 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [545322236] [2020-10-14 21:50:57,970 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 21:50:57,970 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 21:50:57,970 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 21:50:57,970 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 21:50:57,971 INFO L87 Difference]: Start difference. First operand 7060 states and 7728 transitions. Second operand 5 states. [2020-10-14 21:50:59,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 21:50:59,059 INFO L93 Difference]: Finished difference Result 13930 states and 15265 transitions. [2020-10-14 21:50:59,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 21:50:59,060 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 1465 [2020-10-14 21:50:59,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 21:50:59,074 INFO L225 Difference]: With dead ends: 13930 [2020-10-14 21:50:59,074 INFO L226 Difference]: Without dead ends: 7060 [2020-10-14 21:50:59,086 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-14 21:50:59,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7060 states. [2020-10-14 21:50:59,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7060 to 6878. [2020-10-14 21:50:59,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6878 states. [2020-10-14 21:50:59,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6878 states to 6878 states and 7462 transitions. [2020-10-14 21:50:59,195 INFO L78 Accepts]: Start accepts. Automaton has 6878 states and 7462 transitions. Word has length 1465 [2020-10-14 21:50:59,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 21:50:59,196 INFO L479 AbstractCegarLoop]: Abstraction has 6878 states and 7462 transitions. [2020-10-14 21:50:59,197 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 21:50:59,197 INFO L276 IsEmpty]: Start isEmpty. Operand 6878 states and 7462 transitions. [2020-10-14 21:50:59,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1498 [2020-10-14 21:50:59,229 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 21:50:59,230 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 7, 7, 6, 6, 6, 6, 6, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 21:50:59,230 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-14 21:50:59,230 INFO L427 AbstractCegarLoop]: === Iteration 18 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 21:50:59,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 21:50:59,231 INFO L82 PathProgramCache]: Analyzing trace with hash -1166243930, now seen corresponding path program 1 times [2020-10-14 21:50:59,231 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 21:50:59,231 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1545945051] [2020-10-14 21:50:59,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 21:50:59,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:50:59,622 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:50:59,967 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:51:02,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:51:02,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:51:03,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:51:04,007 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:51:04,510 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:51:04,510 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1529 [2020-10-14 21:51:04,511 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-14 21:51:04,511 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5067 [2020-10-14 21:51:04,511 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:51:04,511 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:51:04,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 21:51:04,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1133 [2020-10-14 21:51:04,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 235 [2020-10-14 21:51:04,511 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:51:04,646 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 21:51:04,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:51:04,648 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:51:04,651 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:51:04,651 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 21:51:04,651 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:51:04,651 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 21:51:04,651 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:51:04,652 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:51:04,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:51:04,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:51:04,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:51:04,652 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:51:04,664 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 21:51:04,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:51:04,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:51:04,684 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:51:04,684 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 21:51:04,684 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:51:04,684 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 21:51:04,685 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:51:04,685 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:51:04,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:51:04,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:51:04,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:51:04,685 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:51:04,700 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-14 21:51:04,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:51:04,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:51:04,719 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:51:04,719 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-14 21:51:04,719 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:51:04,719 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 21:51:04,719 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:51:04,719 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:51:04,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:51:04,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:51:04,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:51:04,720 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:51:04,734 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-14 21:51:04,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:51:04,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:51:04,753 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:51:04,753 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-14 21:51:04,754 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:51:04,754 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 21:51:04,754 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:51:04,754 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:51:04,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:51:04,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:51:04,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:51:04,754 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:51:04,770 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-14 21:51:04,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:51:04,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:51:04,784 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:51:04,785 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-14 21:51:04,785 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:51:04,785 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 21:51:04,785 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:51:04,785 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:51:04,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:51:04,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:51:04,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:51:04,786 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:51:04,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-14 21:51:04,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:51:04,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:51:04,839 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:51:04,840 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-14 21:51:04,840 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:51:04,840 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-14 21:51:04,840 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:51:04,840 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:51:04,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:51:04,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:51:04,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:51:04,841 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:51:04,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-14 21:51:04,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:51:04,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:51:04,882 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:51:04,883 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-14 21:51:04,883 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:51:04,883 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 21:51:04,883 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:51:04,883 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:51:04,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:51:04,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:51:04,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:51:04,884 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:51:04,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-14 21:51:04,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:51:04,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:51:04,924 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:51:04,924 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-14 21:51:04,924 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:51:04,925 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-14 21:51:04,925 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:51:04,925 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:51:04,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:51:04,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:51:04,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:51:04,925 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:51:04,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-14 21:51:04,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:51:04,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:51:04,976 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:51:04,977 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-14 21:51:04,977 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:51:04,977 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-14 21:51:04,977 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:51:04,977 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:51:04,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:51:04,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:51:04,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:51:04,977 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:51:04,995 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 975 [2020-10-14 21:51:05,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:51:05,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:51:05,067 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:51:05,067 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-14 21:51:05,067 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:51:05,068 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-10-14 21:51:05,068 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:51:05,068 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:51:05,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:51:05,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:51:05,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 135 [2020-10-14 21:51:05,069 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:51:05,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1115 [2020-10-14 21:51:05,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:51:05,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:51:05,158 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:51:05,296 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:51:05,296 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-14 21:51:05,296 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 21:51:05,297 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 168 [2020-10-14 21:51:05,297 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:51:05,297 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:51:05,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:51:05,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:51:05,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 119 [2020-10-14 21:51:05,297 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:51:05,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1233 [2020-10-14 21:51:05,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:51:05,356 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:51:05,430 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:51:05,430 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-14 21:51:05,430 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:51:05,430 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 81 [2020-10-14 21:51:05,431 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:51:05,431 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:51:05,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:51:05,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:51:05,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 113 [2020-10-14 21:51:05,431 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:51:05,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1345 [2020-10-14 21:51:05,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:51:05,525 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:51:05,546 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:51:05,546 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-10-14 21:51:05,546 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:51:05,546 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-14 21:51:05,547 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:51:05,547 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:51:05,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:51:05,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 93 [2020-10-14 21:51:05,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:51:05,547 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:51:06,554 INFO L134 CoverageAnalysis]: Checked inductivity of 7379 backedges. 2639 proven. 188 refuted. 0 times theorem prover too weak. 4552 trivial. 0 not checked. [2020-10-14 21:51:06,554 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1545945051] [2020-10-14 21:51:06,554 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 21:51:06,555 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 21:51:06,555 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1724294063] [2020-10-14 21:51:06,556 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 21:51:06,556 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 21:51:06,556 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 21:51:06,557 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 21:51:06,557 INFO L87 Difference]: Start difference. First operand 6878 states and 7462 transitions. Second operand 7 states. [2020-10-14 21:51:08,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 21:51:08,588 INFO L93 Difference]: Finished difference Result 14484 states and 15710 transitions. [2020-10-14 21:51:08,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 21:51:08,589 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1497 [2020-10-14 21:51:08,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 21:51:08,600 INFO L225 Difference]: With dead ends: 14484 [2020-10-14 21:51:08,600 INFO L226 Difference]: Without dead ends: 7796 [2020-10-14 21:51:08,609 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 31 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 21:51:08,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7796 states. [2020-10-14 21:51:08,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7796 to 6330. [2020-10-14 21:51:08,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6330 states. [2020-10-14 21:51:08,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6330 states to 6330 states and 6849 transitions. [2020-10-14 21:51:08,701 INFO L78 Accepts]: Start accepts. Automaton has 6330 states and 6849 transitions. Word has length 1497 [2020-10-14 21:51:08,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 21:51:08,701 INFO L479 AbstractCegarLoop]: Abstraction has 6330 states and 6849 transitions. [2020-10-14 21:51:08,701 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 21:51:08,702 INFO L276 IsEmpty]: Start isEmpty. Operand 6330 states and 6849 transitions. [2020-10-14 21:51:08,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1683 [2020-10-14 21:51:08,735 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 21:51:08,736 INFO L422 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 9, 8, 7, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1] [2020-10-14 21:51:08,736 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-14 21:51:08,736 INFO L427 AbstractCegarLoop]: === Iteration 19 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 21:51:08,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 21:51:08,737 INFO L82 PathProgramCache]: Analyzing trace with hash -1659633619, now seen corresponding path program 1 times [2020-10-14 21:51:08,737 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 21:51:08,738 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [146375589] [2020-10-14 21:51:08,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 21:51:08,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:51:09,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:51:09,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:51:12,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:51:13,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:51:14,053 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:51:14,054 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1716 [2020-10-14 21:51:14,054 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 21:51:14,054 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5070 [2020-10-14 21:51:14,054 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:51:14,054 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:51:14,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:51:14,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1430 [2020-10-14 21:51:14,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 115 [2020-10-14 21:51:14,055 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:51:14,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 21:51:14,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:51:14,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:51:14,232 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:51:14,233 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 21:51:14,233 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:51:14,233 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 21:51:14,233 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:51:14,233 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:51:14,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:51:14,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:51:14,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:51:14,234 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:51:14,245 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 21:51:14,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:51:14,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:51:14,265 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:51:14,265 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 21:51:14,265 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:51:14,265 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-14 21:51:14,265 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:51:14,266 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:51:14,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:51:14,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:51:14,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:51:14,266 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:51:14,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-14 21:51:14,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:51:14,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:51:14,308 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:51:14,308 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-14 21:51:14,308 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:51:14,309 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-14 21:51:14,309 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:51:14,309 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:51:14,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:51:14,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:51:14,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:51:14,309 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:51:14,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-14 21:51:14,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:51:14,329 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:51:14,348 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:51:14,348 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-14 21:51:14,348 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:51:14,348 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-14 21:51:14,349 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:51:14,349 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:51:14,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:51:14,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:51:14,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:51:14,349 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:51:14,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-14 21:51:14,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:51:14,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:51:14,377 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:51:14,377 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-14 21:51:14,377 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:51:14,377 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 21:51:14,377 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:51:14,377 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:51:14,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:51:14,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:51:14,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:51:14,378 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:51:14,387 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-14 21:51:14,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:51:14,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:51:14,416 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:51:14,417 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-14 21:51:14,417 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:51:14,417 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-14 21:51:14,417 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:51:14,417 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:51:14,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:51:14,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:51:14,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:51:14,418 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:51:14,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-14 21:51:14,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:51:14,449 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:51:14,457 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:51:14,457 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-14 21:51:14,457 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:51:14,458 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 21:51:14,458 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:51:14,458 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:51:14,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:51:14,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:51:14,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:51:14,458 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:51:14,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-14 21:51:14,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:51:14,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:51:14,498 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:51:14,498 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-14 21:51:14,498 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:51:14,498 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-14 21:51:14,499 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:51:14,499 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:51:14,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:51:14,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:51:14,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:51:14,499 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:51:14,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-14 21:51:14,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:51:14,533 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:51:14,548 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:51:14,549 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-14 21:51:14,549 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:51:14,549 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-14 21:51:14,549 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:51:14,549 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:51:14,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:51:14,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:51:14,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:51:14,549 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:51:14,686 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 975 [2020-10-14 21:51:14,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:51:14,690 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:51:14,708 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:51:14,708 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-14 21:51:14,708 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:51:14,708 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-14 21:51:14,708 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:51:14,709 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:51:14,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:51:14,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:51:14,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:51:14,709 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:51:14,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1115 [2020-10-14 21:51:14,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:51:14,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:51:14,757 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:51:14,758 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 183 [2020-10-14 21:51:14,758 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:51:14,758 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-14 21:51:14,758 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:51:14,758 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:51:14,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:51:14,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:51:14,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:51:14,759 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:51:14,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1297 [2020-10-14 21:51:14,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:51:14,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:51:14,838 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:51:14,838 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-10-14 21:51:14,838 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:51:14,838 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-14 21:51:14,838 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:51:14,838 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:51:14,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:51:14,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:51:14,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 106 [2020-10-14 21:51:14,839 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:51:14,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1408 [2020-10-14 21:51:14,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:51:14,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:51:14,950 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:51:14,950 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-14 21:51:14,950 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:51:14,950 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 72 [2020-10-14 21:51:14,951 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:51:14,951 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:51:14,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:51:14,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:51:14,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 113 [2020-10-14 21:51:14,951 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:51:15,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1520 [2020-10-14 21:51:15,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:51:15,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:51:15,042 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:51:15,043 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 106 [2020-10-14 21:51:15,043 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:51:15,043 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-14 21:51:15,043 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:51:15,043 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:51:15,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:51:15,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 103 [2020-10-14 21:51:15,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:51:15,044 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:51:16,253 INFO L134 CoverageAnalysis]: Checked inductivity of 8927 backedges. 1974 proven. 104 refuted. 0 times theorem prover too weak. 6849 trivial. 0 not checked. [2020-10-14 21:51:16,254 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [146375589] [2020-10-14 21:51:16,254 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 21:51:16,255 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-14 21:51:16,255 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [738092450] [2020-10-14 21:51:16,256 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 21:51:16,256 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 21:51:16,256 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 21:51:16,256 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-14 21:51:16,257 INFO L87 Difference]: Start difference. First operand 6330 states and 6849 transitions. Second operand 8 states. [2020-10-14 21:51:18,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 21:51:18,215 INFO L93 Difference]: Finished difference Result 13228 states and 14326 transitions. [2020-10-14 21:51:18,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-14 21:51:18,216 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 1682 [2020-10-14 21:51:18,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 21:51:18,225 INFO L225 Difference]: With dead ends: 13228 [2020-10-14 21:51:18,225 INFO L226 Difference]: Without dead ends: 4674 [2020-10-14 21:51:18,233 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=53, Invalid=129, Unknown=0, NotChecked=0, Total=182 [2020-10-14 21:51:18,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4674 states. [2020-10-14 21:51:18,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4674 to 4264. [2020-10-14 21:51:18,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4264 states. [2020-10-14 21:51:18,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4264 states to 4264 states and 4465 transitions. [2020-10-14 21:51:18,292 INFO L78 Accepts]: Start accepts. Automaton has 4264 states and 4465 transitions. Word has length 1682 [2020-10-14 21:51:18,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 21:51:18,293 INFO L479 AbstractCegarLoop]: Abstraction has 4264 states and 4465 transitions. [2020-10-14 21:51:18,293 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 21:51:18,293 INFO L276 IsEmpty]: Start isEmpty. Operand 4264 states and 4465 transitions. [2020-10-14 21:51:18,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1729 [2020-10-14 21:51:18,317 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 21:51:18,318 INFO L422 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 9, 9, 9, 8, 8, 8, 8, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1] [2020-10-14 21:51:18,318 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-14 21:51:18,318 INFO L427 AbstractCegarLoop]: === Iteration 20 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 21:51:18,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 21:51:18,319 INFO L82 PathProgramCache]: Analyzing trace with hash -685681087, now seen corresponding path program 1 times [2020-10-14 21:51:18,319 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 21:51:18,319 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [22783242] [2020-10-14 21:51:18,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 21:51:18,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:51:18,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:51:19,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:51:21,581 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:51:21,581 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1762 [2020-10-14 21:51:21,581 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 21:51:21,581 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2995 [2020-10-14 21:51:21,581 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:51:21,582 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:51:21,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:51:21,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1697 [2020-10-14 21:51:21,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-14 21:51:21,582 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:51:21,753 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 21:51:21,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:51:21,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:51:21,757 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:51:21,757 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 21:51:21,757 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:51:21,757 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 21:51:21,757 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:51:21,758 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:51:21,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:51:21,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:51:21,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:51:21,758 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:51:21,769 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 21:51:21,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:51:21,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:51:21,790 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:51:21,790 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 21:51:21,790 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:51:21,790 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 21:51:21,790 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:51:21,790 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:51:21,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:51:21,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:51:21,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:51:21,791 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:51:21,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-14 21:51:21,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:51:21,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:51:21,831 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:51:21,831 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-14 21:51:21,831 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:51:21,831 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 21:51:21,831 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:51:21,831 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:51:21,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:51:21,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:51:21,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:51:21,832 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:51:21,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-14 21:51:21,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:51:21,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:51:21,884 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:51:21,884 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-14 21:51:21,885 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:51:21,885 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-14 21:51:21,885 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:51:21,885 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:51:21,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:51:21,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:51:21,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:51:21,886 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:51:21,911 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-14 21:51:21,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:51:21,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:51:21,937 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:51:21,937 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-14 21:51:21,937 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:51:21,938 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-14 21:51:21,938 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:51:21,938 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:51:21,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:51:21,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:51:21,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:51:21,939 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:51:21,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-14 21:51:21,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:51:21,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:51:22,005 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:51:22,005 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-14 21:51:22,006 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:51:22,006 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-14 21:51:22,006 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:51:22,006 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:51:22,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:51:22,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:51:22,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:51:22,007 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:51:22,059 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-14 21:51:22,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:51:22,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:51:22,078 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:51:22,079 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-14 21:51:22,079 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:51:22,079 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-14 21:51:22,079 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:51:22,080 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:51:22,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:51:22,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:51:22,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:51:22,080 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:51:22,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-14 21:51:22,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:51:22,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:51:22,145 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:51:22,146 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-14 21:51:22,146 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:51:22,146 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-14 21:51:22,147 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:51:22,147 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:51:22,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:51:22,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:51:22,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:51:22,148 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:51:22,200 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-14 21:51:22,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:51:22,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:51:22,233 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:51:22,234 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-14 21:51:22,234 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:51:22,234 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-14 21:51:22,234 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:51:22,234 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:51:22,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:51:22,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:51:22,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:51:22,235 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:51:22,252 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 975 [2020-10-14 21:51:22,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:51:22,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:51:22,278 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:51:22,279 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-14 21:51:22,279 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:51:22,279 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-14 21:51:22,279 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:51:22,279 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:51:22,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:51:22,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:51:22,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:51:22,280 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:51:22,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1115 [2020-10-14 21:51:22,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:51:22,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:51:22,336 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:51:22,336 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 183 [2020-10-14 21:51:22,336 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:51:22,336 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-14 21:51:22,336 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:51:22,336 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:51:22,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:51:22,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:51:22,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:51:22,337 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:51:22,369 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1297 [2020-10-14 21:51:22,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:51:22,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:51:22,391 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:51:22,391 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 114 [2020-10-14 21:51:22,391 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:51:22,391 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-14 21:51:22,391 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:51:22,391 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:51:22,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:51:22,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:51:22,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:51:22,392 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:51:22,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1410 [2020-10-14 21:51:22,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:51:22,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:51:22,435 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:51:22,435 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 128 [2020-10-14 21:51:22,435 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:51:22,435 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-14 21:51:22,435 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:51:22,435 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:51:22,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:51:22,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:51:22,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:51:22,436 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:51:22,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1537 [2020-10-14 21:51:22,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:51:22,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:51:22,530 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:51:22,530 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 135 [2020-10-14 21:51:22,530 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:51:22,530 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-10-14 21:51:22,530 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:51:22,531 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:51:22,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:51:22,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:51:22,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 129 [2020-10-14 21:51:22,531 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:51:23,888 INFO L134 CoverageAnalysis]: Checked inductivity of 9192 backedges. 777 proven. 13 refuted. 0 times theorem prover too weak. 8402 trivial. 0 not checked. [2020-10-14 21:51:23,888 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [22783242] [2020-10-14 21:51:23,889 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 21:51:23,889 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 21:51:23,889 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1636686803] [2020-10-14 21:51:23,890 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 21:51:23,890 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 21:51:23,891 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 21:51:23,891 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 21:51:23,891 INFO L87 Difference]: Start difference. First operand 4264 states and 4465 transitions. Second operand 5 states. [2020-10-14 21:51:24,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 21:51:24,837 INFO L93 Difference]: Finished difference Result 8708 states and 9124 transitions. [2020-10-14 21:51:24,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 21:51:24,838 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 1728 [2020-10-14 21:51:24,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 21:51:24,846 INFO L225 Difference]: With dead ends: 8708 [2020-10-14 21:51:24,846 INFO L226 Difference]: Without dead ends: 4448 [2020-10-14 21:51:24,850 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-14 21:51:24,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4448 states. [2020-10-14 21:51:24,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4448 to 4444. [2020-10-14 21:51:24,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4444 states. [2020-10-14 21:51:24,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4444 states to 4444 states and 4637 transitions. [2020-10-14 21:51:24,908 INFO L78 Accepts]: Start accepts. Automaton has 4444 states and 4637 transitions. Word has length 1728 [2020-10-14 21:51:24,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 21:51:24,909 INFO L479 AbstractCegarLoop]: Abstraction has 4444 states and 4637 transitions. [2020-10-14 21:51:24,909 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 21:51:24,909 INFO L276 IsEmpty]: Start isEmpty. Operand 4444 states and 4637 transitions. [2020-10-14 21:51:24,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1818 [2020-10-14 21:51:24,941 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 21:51:24,942 INFO L422 BasicCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 9, 9, 9, 8, 8, 8, 8, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1] [2020-10-14 21:51:24,942 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-14 21:51:24,943 INFO L427 AbstractCegarLoop]: === Iteration 21 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 21:51:24,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 21:51:24,943 INFO L82 PathProgramCache]: Analyzing trace with hash -526348150, now seen corresponding path program 1 times [2020-10-14 21:51:24,943 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 21:51:24,944 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [134896579] [2020-10-14 21:51:24,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 21:51:25,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:51:25,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:51:25,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:51:29,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:51:29,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:51:30,312 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:51:30,312 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1853 [2020-10-14 21:51:30,312 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 21:51:30,312 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5123 [2020-10-14 21:51:30,312 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:51:30,312 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:51:30,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 21:51:30,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1561 [2020-10-14 21:51:30,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 291 [2020-10-14 21:51:30,313 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:51:30,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 21:51:30,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:51:30,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:51:30,490 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:51:30,491 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 21:51:30,491 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:51:30,491 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 21:51:30,491 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:51:30,491 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:51:30,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:51:30,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:51:30,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:51:30,492 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:51:30,502 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 21:51:30,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:51:30,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:51:30,520 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:51:30,520 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 21:51:30,520 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:51:30,520 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 21:51:30,521 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:51:30,521 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:51:30,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:51:30,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:51:30,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:51:30,521 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:51:30,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-14 21:51:30,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:51:30,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:51:30,553 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:51:30,554 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-14 21:51:30,554 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:51:30,554 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 21:51:30,554 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:51:30,554 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:51:30,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:51:30,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:51:30,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:51:30,555 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:51:30,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-14 21:51:30,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:51:30,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:51:30,590 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:51:30,590 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-14 21:51:30,591 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:51:30,591 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-14 21:51:30,591 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:51:30,591 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:51:30,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:51:30,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:51:30,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:51:30,591 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:51:30,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-14 21:51:30,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:51:30,610 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:51:30,619 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:51:30,619 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-14 21:51:30,619 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:51:30,619 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 21:51:30,619 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:51:30,619 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:51:30,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:51:30,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:51:30,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:51:30,620 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:51:30,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-14 21:51:30,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:51:30,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:51:30,660 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:51:30,660 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-14 21:51:30,660 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:51:30,661 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-14 21:51:30,661 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:51:30,661 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:51:30,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:51:30,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:51:30,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:51:30,661 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:51:30,690 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-14 21:51:30,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:51:30,693 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:51:30,702 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:51:30,703 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-14 21:51:30,703 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:51:30,703 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 21:51:30,703 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:51:30,703 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:51:30,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:51:30,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:51:30,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:51:30,703 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:51:30,712 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-14 21:51:30,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:51:30,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:51:30,745 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:51:30,745 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-14 21:51:30,745 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:51:30,745 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-14 21:51:30,746 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:51:30,746 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:51:30,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:51:30,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:51:30,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:51:30,746 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:51:30,776 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-14 21:51:30,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:51:30,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:51:30,797 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:51:30,797 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-14 21:51:30,797 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:51:30,797 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-14 21:51:30,798 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:51:30,798 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:51:30,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:51:30,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:51:30,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:51:30,798 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:51:30,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 975 [2020-10-14 21:51:30,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:51:30,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:51:30,863 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:51:30,863 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-14 21:51:30,863 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:51:30,863 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-14 21:51:30,864 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:51:30,864 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:51:30,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:51:30,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:51:30,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:51:30,864 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:51:30,900 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1115 [2020-10-14 21:51:30,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:51:30,911 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:51:30,957 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:51:30,957 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 183 [2020-10-14 21:51:30,957 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:51:30,958 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-14 21:51:30,958 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:51:30,958 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:51:30,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:51:30,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:51:30,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:51:30,959 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:51:31,018 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1297 [2020-10-14 21:51:31,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:51:31,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:51:31,052 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:51:31,053 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 114 [2020-10-14 21:51:31,053 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:51:31,053 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-14 21:51:31,053 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:51:31,053 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:51:31,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:51:31,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:51:31,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:51:31,054 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:51:31,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1410 [2020-10-14 21:51:31,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:51:31,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:51:31,191 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:51:31,191 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 128 [2020-10-14 21:51:31,191 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:51:31,192 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 83 [2020-10-14 21:51:31,192 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:51:31,192 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:51:31,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:51:31,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:51:31,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 122 [2020-10-14 21:51:31,193 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:51:31,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1537 [2020-10-14 21:51:31,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:51:31,253 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:51:31,290 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:51:31,290 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-14 21:51:31,291 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:51:31,291 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-14 21:51:31,291 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:51:31,291 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:51:31,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:51:31,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:51:31,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 80 [2020-10-14 21:51:31,292 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:51:31,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1616 [2020-10-14 21:51:31,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:51:31,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:51:31,472 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:51:31,473 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-14 21:51:31,473 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:51:31,473 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 112 [2020-10-14 21:51:31,473 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:51:31,474 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:51:31,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:51:31,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:51:31,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 145 [2020-10-14 21:51:31,474 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:51:32,962 INFO L134 CoverageAnalysis]: Checked inductivity of 10310 backedges. 3055 proven. 200 refuted. 0 times theorem prover too weak. 7055 trivial. 0 not checked. [2020-10-14 21:51:32,963 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [134896579] [2020-10-14 21:51:32,963 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 21:51:32,963 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 21:51:32,963 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [106124059] [2020-10-14 21:51:32,964 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 21:51:32,965 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 21:51:32,965 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 21:51:32,965 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-14 21:51:32,965 INFO L87 Difference]: Start difference. First operand 4444 states and 4637 transitions. Second operand 7 states. [2020-10-14 21:51:34,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 21:51:34,180 INFO L93 Difference]: Finished difference Result 9846 states and 10345 transitions. [2020-10-14 21:51:34,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 21:51:34,180 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1817 [2020-10-14 21:51:34,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 21:51:34,192 INFO L225 Difference]: With dead ends: 9846 [2020-10-14 21:51:34,192 INFO L226 Difference]: Without dead ends: 5026 [2020-10-14 21:51:34,199 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2020-10-14 21:51:34,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5026 states. [2020-10-14 21:51:34,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5026 to 4812. [2020-10-14 21:51:34,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4812 states. [2020-10-14 21:51:34,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4812 states to 4812 states and 4980 transitions. [2020-10-14 21:51:34,275 INFO L78 Accepts]: Start accepts. Automaton has 4812 states and 4980 transitions. Word has length 1817 [2020-10-14 21:51:34,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 21:51:34,277 INFO L479 AbstractCegarLoop]: Abstraction has 4812 states and 4980 transitions. [2020-10-14 21:51:34,277 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 21:51:34,277 INFO L276 IsEmpty]: Start isEmpty. Operand 4812 states and 4980 transitions. [2020-10-14 21:51:34,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1939 [2020-10-14 21:51:34,318 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 21:51:34,319 INFO L422 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 10, 10, 10, 9, 9, 9, 9, 8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 21:51:34,319 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-10-14 21:51:34,320 INFO L427 AbstractCegarLoop]: === Iteration 22 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 21:51:34,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 21:51:34,320 INFO L82 PathProgramCache]: Analyzing trace with hash -1363669371, now seen corresponding path program 1 times [2020-10-14 21:51:34,321 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 21:51:34,321 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1631365424] [2020-10-14 21:51:34,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 21:51:34,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:51:34,799 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:51:35,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:51:35,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:51:37,937 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:51:38,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:51:39,611 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:51:39,611 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1976 [2020-10-14 21:51:39,612 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 21:51:39,612 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-10-14 21:51:39,612 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:51:39,612 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:51:39,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 21:51:39,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1432 [2020-10-14 21:51:39,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 253 [2020-10-14 21:51:39,612 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:51:39,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 21:51:39,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:51:39,878 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:51:39,880 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:51:39,880 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 21:51:39,880 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:51:39,880 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 21:51:39,881 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:51:39,881 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:51:39,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:51:39,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:51:39,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:51:39,881 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:51:39,894 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 21:51:39,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:51:39,911 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:51:39,930 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:51:39,930 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 21:51:39,930 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:51:39,930 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-14 21:51:39,930 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:51:39,930 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:51:39,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:51:39,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:51:39,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:51:39,931 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:51:39,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-14 21:51:39,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:51:39,949 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:51:39,962 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:51:39,962 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-14 21:51:39,962 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:51:39,963 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-14 21:51:39,963 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:51:39,963 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:51:39,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:51:39,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:51:39,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:51:39,963 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:51:39,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-14 21:51:39,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:51:39,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:51:39,995 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:51:39,995 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-14 21:51:39,995 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:51:39,995 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 21:51:39,996 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:51:39,996 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:51:39,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:51:39,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:51:39,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:51:39,996 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:51:40,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-14 21:51:40,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:51:40,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:51:40,023 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:51:40,023 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-14 21:51:40,023 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:51:40,023 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 21:51:40,023 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:51:40,024 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:51:40,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:51:40,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:51:40,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:51:40,024 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:51:40,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-14 21:51:40,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:51:40,137 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:51:40,158 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:51:40,159 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-14 21:51:40,159 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:51:40,159 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-14 21:51:40,159 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:51:40,159 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:51:40,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:51:40,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:51:40,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:51:40,160 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:51:40,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-14 21:51:40,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:51:40,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:51:40,196 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:51:40,197 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-14 21:51:40,197 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:51:40,197 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 21:51:40,197 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:51:40,197 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:51:40,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:51:40,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:51:40,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:51:40,197 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:51:40,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-14 21:51:40,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:51:40,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:51:40,234 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:51:40,234 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-14 21:51:40,235 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:51:40,235 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-14 21:51:40,235 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:51:40,235 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:51:40,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:51:40,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:51:40,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:51:40,235 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:51:40,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-14 21:51:40,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:51:40,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:51:40,282 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:51:40,282 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-14 21:51:40,282 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:51:40,282 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 21:51:40,282 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:51:40,282 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:51:40,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:51:40,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:51:40,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:51:40,283 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:51:40,299 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 975 [2020-10-14 21:51:40,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:51:40,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:51:40,324 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:51:40,324 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-14 21:51:40,324 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:51:40,324 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-14 21:51:40,324 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:51:40,324 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:51:40,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:51:40,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:51:40,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:51:40,325 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:51:40,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1115 [2020-10-14 21:51:40,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:51:40,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:51:40,377 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:51:40,377 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 183 [2020-10-14 21:51:40,378 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:51:40,378 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-14 21:51:40,378 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:51:40,378 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:51:40,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:51:40,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:51:40,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:51:40,378 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:51:40,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1297 [2020-10-14 21:51:40,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:51:40,439 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:51:40,471 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:51:40,471 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 114 [2020-10-14 21:51:40,471 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:51:40,471 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-14 21:51:40,471 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:51:40,471 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:51:40,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:51:40,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:51:40,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-10-14 21:51:40,472 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:51:40,498 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1410 [2020-10-14 21:51:40,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:51:40,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:51:40,579 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:51:40,700 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:51:40,700 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-14 21:51:40,701 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 21:51:40,701 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 182 [2020-10-14 21:51:40,701 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:51:40,701 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:51:40,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:51:40,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:51:40,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 119 [2020-10-14 21:51:40,701 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:51:40,760 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1528 [2020-10-14 21:51:40,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:51:40,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:51:40,854 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:51:40,855 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 131 [2020-10-14 21:51:40,855 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:51:40,855 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 77 [2020-10-14 21:51:40,855 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:51:40,855 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:51:40,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:51:40,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:51:40,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 131 [2020-10-14 21:51:40,856 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:51:40,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1658 [2020-10-14 21:51:40,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:51:40,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:51:40,923 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:51:40,923 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-14 21:51:40,923 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:51:40,923 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 21:51:40,923 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:51:40,923 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:51:40,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:51:40,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-10-14 21:51:40,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:51:40,924 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:51:40,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1737 [2020-10-14 21:51:40,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:51:40,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:51:40,985 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:51:40,985 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-14 21:51:40,985 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:51:40,986 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-14 21:51:40,986 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:51:40,986 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:51:40,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:51:40,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 142 [2020-10-14 21:51:40,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:51:40,986 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:51:42,554 INFO L134 CoverageAnalysis]: Checked inductivity of 11894 backedges. 3410 proven. 396 refuted. 0 times theorem prover too weak. 8088 trivial. 0 not checked. [2020-10-14 21:51:42,554 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1631365424] [2020-10-14 21:51:42,554 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 21:51:42,555 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-14 21:51:42,555 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1508517092] [2020-10-14 21:51:42,556 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 21:51:42,556 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 21:51:42,557 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 21:51:42,557 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-14 21:51:42,557 INFO L87 Difference]: Start difference. First operand 4812 states and 4980 transitions. Second operand 8 states. [2020-10-14 21:51:44,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 21:51:44,657 INFO L93 Difference]: Finished difference Result 9624 states and 9961 transitions. [2020-10-14 21:51:44,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-14 21:51:44,661 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 1938 [2020-10-14 21:51:44,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 21:51:44,669 INFO L225 Difference]: With dead ends: 9624 [2020-10-14 21:51:44,670 INFO L226 Difference]: Without dead ends: 5002 [2020-10-14 21:51:44,674 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=55, Invalid=127, Unknown=0, NotChecked=0, Total=182 [2020-10-14 21:51:44,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5002 states. [2020-10-14 21:51:44,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5002 to 4812. [2020-10-14 21:51:44,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4812 states. [2020-10-14 21:51:44,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4812 states to 4812 states and 4976 transitions. [2020-10-14 21:51:44,746 INFO L78 Accepts]: Start accepts. Automaton has 4812 states and 4976 transitions. Word has length 1938 [2020-10-14 21:51:44,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 21:51:44,747 INFO L479 AbstractCegarLoop]: Abstraction has 4812 states and 4976 transitions. [2020-10-14 21:51:44,747 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 21:51:44,747 INFO L276 IsEmpty]: Start isEmpty. Operand 4812 states and 4976 transitions. [2020-10-14 21:51:44,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2076 [2020-10-14 21:51:44,788 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 21:51:44,789 INFO L422 BasicCegarLoop]: trace histogram [17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 15, 15, 15, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 10, 10, 10, 9, 9, 9, 9, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 21:51:44,789 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-10-14 21:51:44,789 INFO L427 AbstractCegarLoop]: === Iteration 23 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 21:51:44,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 21:51:44,790 INFO L82 PathProgramCache]: Analyzing trace with hash -1345456606, now seen corresponding path program 2 times [2020-10-14 21:51:44,790 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 21:51:44,796 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1460245942] [2020-10-14 21:51:44,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 21:51:45,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:51:45,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:51:45,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:51:45,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:51:46,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:51:48,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:51:49,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:51:50,173 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:51:50,173 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 2115 [2020-10-14 21:51:50,173 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-14 21:51:50,173 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5083 [2020-10-14 21:51:50,173 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:51:50,173 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:51:50,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-10-14 21:51:50,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 871 [2020-10-14 21:51:50,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 953 [2020-10-14 21:51:50,174 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:51:50,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 21:51:50,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:51:50,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:51:50,352 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:51:50,352 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 21:51:50,352 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:51:50,353 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 21:51:50,353 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:51:50,353 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:51:50,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:51:50,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:51:50,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:51:50,353 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:51:50,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 21:51:50,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:51:50,370 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:51:50,384 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:51:50,384 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 21:51:50,384 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:51:50,384 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 21:51:50,385 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:51:50,385 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:51:50,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:51:50,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:51:50,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:51:50,385 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:51:50,399 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-14 21:51:50,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:51:50,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:51:50,416 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:51:50,416 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-14 21:51:50,417 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:51:50,417 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 21:51:50,417 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:51:50,417 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:51:50,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:51:50,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:51:50,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:51:50,417 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:51:50,432 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-14 21:51:50,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:51:50,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:51:50,451 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:51:50,451 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-14 21:51:50,451 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:51:50,451 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-14 21:51:50,452 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:51:50,452 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:51:50,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:51:50,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:51:50,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:51:50,452 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:51:50,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-14 21:51:50,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:51:50,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:51:50,480 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:51:50,480 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-14 21:51:50,480 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:51:50,480 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 21:51:50,480 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:51:50,480 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:51:50,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:51:50,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:51:50,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:51:50,481 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:51:50,490 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-14 21:51:50,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:51:50,496 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:51:50,522 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:51:50,523 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-14 21:51:50,523 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:51:50,523 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-14 21:51:50,523 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:51:50,523 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:51:50,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:51:50,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:51:50,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:51:50,524 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:51:50,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-14 21:51:50,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:51:50,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:51:50,563 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:51:50,563 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-14 21:51:50,563 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:51:50,563 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 21:51:50,564 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:51:50,564 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:51:50,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:51:50,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:51:50,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:51:50,564 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:51:50,573 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-14 21:51:50,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:51:50,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:51:50,659 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:51:50,659 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-14 21:51:50,659 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:51:50,659 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 67 [2020-10-14 21:51:50,660 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:51:50,660 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:51:50,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:51:50,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:51:50,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 174 [2020-10-14 21:51:50,660 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:51:50,690 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-14 21:51:50,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:51:50,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:51:50,744 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:51:50,817 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:51:50,817 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-14 21:51:50,817 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 21:51:50,817 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 113 [2020-10-14 21:51:50,817 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:51:50,818 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:51:50,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:51:50,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:51:50,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 113 [2020-10-14 21:51:50,818 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:51:50,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 975 [2020-10-14 21:51:50,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:51:50,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:51:50,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:51:50,963 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:51:50,964 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-14 21:51:50,964 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 21:51:50,964 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 105 [2020-10-14 21:51:50,964 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:51:50,964 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:51:50,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:51:50,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:51:50,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 135 [2020-10-14 21:51:50,965 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:51:50,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1115 [2020-10-14 21:51:51,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:51:51,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:51:51,067 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:51:51,188 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:51:51,189 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 183 [2020-10-14 21:51:51,189 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 21:51:51,189 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 176 [2020-10-14 21:51:51,189 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:51:51,189 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:51:51,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:51:51,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:51:51,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 177 [2020-10-14 21:51:51,190 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:51:51,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1297 [2020-10-14 21:51:51,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:51:51,263 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:51:51,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:51:51,335 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:51:51,335 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 114 [2020-10-14 21:51:51,335 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 21:51:51,335 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 78 [2020-10-14 21:51:51,336 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:51:51,336 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:51:51,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:51:51,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:51:51,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-10-14 21:51:51,336 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:51:51,353 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1410 [2020-10-14 21:51:51,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:51:51,381 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:51:51,411 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:51:51,473 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:51:51,473 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 128 [2020-10-14 21:51:51,473 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 21:51:51,473 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 99 [2020-10-14 21:51:51,473 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:51:51,474 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:51:51,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:51:51,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:51:51,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 122 [2020-10-14 21:51:51,475 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:51:51,496 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1537 [2020-10-14 21:51:51,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:51:51,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:51:51,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:51:51,557 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:51:51,557 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-14 21:51:51,557 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 21:51:51,557 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-10-14 21:51:51,557 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:51:51,557 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:51:51,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:51:51,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:51:51,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-14 21:51:51,558 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:51:51,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1616 [2020-10-14 21:51:51,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:51:51,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:51:51,853 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:51:51,854 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-14 21:51:51,854 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:51:51,854 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 217 [2020-10-14 21:51:51,854 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:51:51,854 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:51:51,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:51:51,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:51:51,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-14 21:51:51,855 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:51:51,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1795 [2020-10-14 21:51:51,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:51:51,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:51:51,955 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:51:51,955 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-14 21:51:51,955 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:51:51,955 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 21:51:51,955 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:51:51,955 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:51:51,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:51:51,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-10-14 21:51:51,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:51:51,956 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:51:51,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1874 [2020-10-14 21:51:51,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:51:51,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:51:52,020 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:51:52,020 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-14 21:51:52,021 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:51:52,021 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-14 21:51:52,021 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:51:52,021 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:51:52,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:51:52,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 142 [2020-10-14 21:51:52,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:51:52,021 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:51:53,829 INFO L134 CoverageAnalysis]: Checked inductivity of 13357 backedges. 2844 proven. 255 refuted. 0 times theorem prover too weak. 10258 trivial. 0 not checked. [2020-10-14 21:51:53,829 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1460245942] [2020-10-14 21:51:53,838 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 21:51:53,839 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 21:51:53,839 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [193160998] [2020-10-14 21:51:53,840 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 21:51:53,840 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 21:51:53,841 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 21:51:53,841 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 21:51:53,841 INFO L87 Difference]: Start difference. First operand 4812 states and 4976 transitions. Second operand 7 states. [2020-10-14 21:51:55,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 21:51:55,206 INFO L93 Difference]: Finished difference Result 9472 states and 9831 transitions. [2020-10-14 21:51:55,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 21:51:55,206 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 2075 [2020-10-14 21:51:55,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 21:51:55,215 INFO L225 Difference]: With dead ends: 9472 [2020-10-14 21:51:55,215 INFO L226 Difference]: Without dead ends: 4850 [2020-10-14 21:51:55,219 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-14 21:51:55,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4850 states. [2020-10-14 21:51:55,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4850 to 4810. [2020-10-14 21:51:55,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4810 states. [2020-10-14 21:51:55,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4810 states to 4810 states and 4947 transitions. [2020-10-14 21:51:55,267 INFO L78 Accepts]: Start accepts. Automaton has 4810 states and 4947 transitions. Word has length 2075 [2020-10-14 21:51:55,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 21:51:55,268 INFO L479 AbstractCegarLoop]: Abstraction has 4810 states and 4947 transitions. [2020-10-14 21:51:55,269 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 21:51:55,269 INFO L276 IsEmpty]: Start isEmpty. Operand 4810 states and 4947 transitions. [2020-10-14 21:51:55,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2120 [2020-10-14 21:51:55,301 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 21:51:55,302 INFO L422 BasicCegarLoop]: trace histogram [17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 15, 15, 15, 14, 14, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 11, 11, 11, 10, 10, 10, 10, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 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, 1, 1, 1, 1, 1] [2020-10-14 21:51:55,302 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-10-14 21:51:55,302 INFO L427 AbstractCegarLoop]: === Iteration 24 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 21:51:55,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 21:51:55,303 INFO L82 PathProgramCache]: Analyzing trace with hash 90837550, now seen corresponding path program 1 times [2020-10-14 21:51:55,303 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 21:51:55,303 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1852898663] [2020-10-14 21:51:55,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 21:51:55,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:51:55,790 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:51:56,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:52:00,640 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:52:00,640 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 2159 [2020-10-14 21:52:00,640 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 21:52:00,640 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5061 [2020-10-14 21:52:00,641 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:52:00,641 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:52:00,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:52:00,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1561 [2020-10-14 21:52:00,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 175 [2020-10-14 21:52:00,641 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:52:00,824 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 21:52:00,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:52:00,826 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:52:00,828 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:52:00,828 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 21:52:00,828 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:52:00,828 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 21:52:00,828 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:52:00,828 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:52:00,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:52:00,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:52:00,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:52:00,829 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:52:00,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 21:52:00,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:52:00,844 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:52:00,860 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:52:00,860 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 21:52:00,860 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:52:00,860 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-14 21:52:00,860 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:52:00,860 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:52:00,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:52:00,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:52:00,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:52:00,861 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:52:00,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-14 21:52:00,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:52:00,878 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:52:00,891 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:52:00,891 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-14 21:52:00,892 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:52:00,892 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-14 21:52:00,892 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:52:00,892 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:52:00,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:52:00,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:52:00,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:52:00,892 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:52:00,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-14 21:52:00,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:52:00,910 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:52:00,924 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:52:00,924 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-14 21:52:00,924 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:52:00,924 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 21:52:00,924 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:52:00,924 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:52:00,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:52:00,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:52:00,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:52:00,925 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:52:00,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-14 21:52:00,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:52:00,943 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:52:00,951 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:52:00,952 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-14 21:52:00,952 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:52:00,952 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 21:52:00,952 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:52:00,952 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:52:00,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:52:00,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:52:00,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:52:00,952 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:52:00,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-14 21:52:00,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:52:00,967 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:52:00,990 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:52:00,991 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-14 21:52:00,991 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:52:00,991 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-14 21:52:00,991 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:52:00,991 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:52:00,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:52:00,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:52:00,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:52:00,992 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:52:01,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-14 21:52:01,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:52:01,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:52:01,035 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:52:01,035 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-14 21:52:01,035 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:52:01,035 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 21:52:01,036 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:52:01,036 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:52:01,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:52:01,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:52:01,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:52:01,036 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:52:01,044 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-14 21:52:01,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:52:01,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:52:01,075 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:52:01,075 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-14 21:52:01,076 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:52:01,076 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-14 21:52:01,076 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:52:01,076 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:52:01,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:52:01,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:52:01,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:52:01,076 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:52:01,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-14 21:52:01,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:52:01,109 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:52:01,125 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:52:01,125 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-14 21:52:01,125 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:52:01,125 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-14 21:52:01,126 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:52:01,126 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:52:01,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:52:01,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:52:01,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:52:01,126 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:52:01,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 975 [2020-10-14 21:52:01,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:52:01,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:52:01,168 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:52:01,168 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-14 21:52:01,168 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:52:01,168 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-14 21:52:01,168 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:52:01,168 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:52:01,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:52:01,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:52:01,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:52:01,169 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:52:01,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1115 [2020-10-14 21:52:01,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:52:01,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:52:01,223 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:52:01,224 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 183 [2020-10-14 21:52:01,224 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:52:01,224 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-14 21:52:01,224 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:52:01,224 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:52:01,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:52:01,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:52:01,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:52:01,225 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:52:01,256 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1297 [2020-10-14 21:52:01,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:52:01,260 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:52:01,278 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:52:01,278 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 114 [2020-10-14 21:52:01,278 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:52:01,278 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-14 21:52:01,278 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:52:01,278 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:52:01,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:52:01,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:52:01,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:52:01,279 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:52:01,298 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1410 [2020-10-14 21:52:01,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:52:01,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:52:01,361 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:52:01,361 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 128 [2020-10-14 21:52:01,361 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:52:01,361 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-10-14 21:52:01,361 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:52:01,361 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:52:01,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:52:01,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:52:01,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 122 [2020-10-14 21:52:01,362 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:52:01,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1537 [2020-10-14 21:52:01,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:52:01,419 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:52:01,527 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:52:01,527 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-10-14 21:52:01,527 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:52:01,527 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 119 [2020-10-14 21:52:01,527 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:52:01,528 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:52:01,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:52:01,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:52:01,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 173 [2020-10-14 21:52:01,528 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:52:01,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1709 [2020-10-14 21:52:01,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:52:01,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:52:01,717 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:52:01,718 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 131 [2020-10-14 21:52:01,718 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:52:01,718 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-14 21:52:01,718 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:52:01,718 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:52:01,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:52:01,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 128 [2020-10-14 21:52:01,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:52:01,719 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:52:01,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1839 [2020-10-14 21:52:01,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:52:01,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:52:01,770 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:52:01,770 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-14 21:52:01,771 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:52:01,771 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-14 21:52:01,771 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:52:01,771 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:52:01,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:52:01,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-10-14 21:52:01,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:52:01,771 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:52:01,782 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1918 [2020-10-14 21:52:01,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:52:01,813 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:52:01,840 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:52:01,841 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-14 21:52:01,841 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:52:01,841 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-14 21:52:01,841 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:52:01,841 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:52:01,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:52:01,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 142 [2020-10-14 21:52:01,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:52:01,841 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:52:04,001 INFO L134 CoverageAnalysis]: Checked inductivity of 13866 backedges. 2598 proven. 346 refuted. 0 times theorem prover too weak. 10922 trivial. 0 not checked. [2020-10-14 21:52:04,001 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1852898663] [2020-10-14 21:52:04,002 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 21:52:04,002 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 21:52:04,002 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1653162992] [2020-10-14 21:52:04,003 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 21:52:04,003 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 21:52:04,003 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 21:52:04,003 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 21:52:04,003 INFO L87 Difference]: Start difference. First operand 4810 states and 4947 transitions. Second operand 7 states. [2020-10-14 21:52:05,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 21:52:05,367 INFO L93 Difference]: Finished difference Result 9432 states and 9706 transitions. [2020-10-14 21:52:05,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-14 21:52:05,367 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 2119 [2020-10-14 21:52:05,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 21:52:05,374 INFO L225 Difference]: With dead ends: 9432 [2020-10-14 21:52:05,375 INFO L226 Difference]: Without dead ends: 4812 [2020-10-14 21:52:05,379 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-10-14 21:52:05,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4812 states. [2020-10-14 21:52:05,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4812 to 4808. [2020-10-14 21:52:05,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4808 states. [2020-10-14 21:52:05,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4808 states to 4808 states and 4936 transitions. [2020-10-14 21:52:05,442 INFO L78 Accepts]: Start accepts. Automaton has 4808 states and 4936 transitions. Word has length 2119 [2020-10-14 21:52:05,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 21:52:05,444 INFO L479 AbstractCegarLoop]: Abstraction has 4808 states and 4936 transitions. [2020-10-14 21:52:05,444 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 21:52:05,444 INFO L276 IsEmpty]: Start isEmpty. Operand 4808 states and 4936 transitions. [2020-10-14 21:52:05,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2324 [2020-10-14 21:52:05,541 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 21:52:05,542 INFO L422 BasicCegarLoop]: trace histogram [19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 17, 17, 17, 15, 15, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 12, 12, 12, 11, 11, 11, 11, 10, 9, 9, 9, 9, 9, 9, 9, 8, 8, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 21:52:05,542 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2020-10-14 21:52:05,542 INFO L427 AbstractCegarLoop]: === Iteration 25 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 21:52:05,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 21:52:05,543 INFO L82 PathProgramCache]: Analyzing trace with hash -1873230390, now seen corresponding path program 1 times [2020-10-14 21:52:05,543 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 21:52:05,543 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1890011708] [2020-10-14 21:52:05,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 21:52:05,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:52:06,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:52:06,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:52:10,823 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:52:10,823 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 2367 [2020-10-14 21:52:10,823 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 21:52:10,823 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5011 [2020-10-14 21:52:10,824 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:52:10,824 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:52:10,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:52:10,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1769 [2020-10-14 21:52:10,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 175 [2020-10-14 21:52:10,824 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:52:11,013 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 21:52:11,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:52:11,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:52:11,018 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:52:11,018 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 21:52:11,018 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:52:11,018 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 21:52:11,018 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:52:11,018 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:52:11,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:52:11,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:52:11,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:52:11,019 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:52:11,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 21:52:11,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:52:11,037 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:52:11,051 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:52:11,051 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 21:52:11,051 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:52:11,052 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 21:52:11,052 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:52:11,052 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:52:11,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:52:11,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:52:11,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:52:11,052 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:52:11,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-14 21:52:11,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:52:11,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:52:11,083 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:52:11,084 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-14 21:52:11,084 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:52:11,084 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 21:52:11,084 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:52:11,084 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:52:11,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:52:11,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:52:11,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:52:11,084 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:52:11,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-14 21:52:11,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:52:11,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:52:11,117 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:52:11,117 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-14 21:52:11,117 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:52:11,117 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 21:52:11,117 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:52:11,118 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:52:11,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:52:11,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:52:11,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:52:11,118 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:52:11,133 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-14 21:52:11,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:52:11,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:52:11,144 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:52:11,144 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-14 21:52:11,144 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:52:11,144 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 21:52:11,145 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:52:11,145 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:52:11,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:52:11,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:52:11,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:52:11,145 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:52:11,154 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-14 21:52:11,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:52:11,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:52:11,184 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:52:11,184 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-14 21:52:11,184 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:52:11,185 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-14 21:52:11,185 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:52:11,185 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:52:11,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:52:11,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:52:11,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:52:11,185 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:52:11,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-14 21:52:11,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:52:11,217 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:52:11,225 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:52:11,225 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-14 21:52:11,225 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:52:11,226 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 21:52:11,226 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:52:11,226 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:52:11,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:52:11,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:52:11,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:52:11,226 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:52:11,235 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-14 21:52:11,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:52:11,242 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:52:11,267 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:52:11,267 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-14 21:52:11,267 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:52:11,267 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-14 21:52:11,267 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:52:11,267 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:52:11,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:52:11,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:52:11,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:52:11,268 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:52:11,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-14 21:52:11,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:52:11,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:52:11,317 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:52:11,318 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-14 21:52:11,318 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:52:11,318 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-14 21:52:11,318 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:52:11,319 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:52:11,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:52:11,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:52:11,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:52:11,319 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:52:11,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 975 [2020-10-14 21:52:11,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:52:11,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:52:11,361 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:52:11,361 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-14 21:52:11,362 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:52:11,362 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-14 21:52:11,362 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:52:11,362 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:52:11,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:52:11,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:52:11,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:52:11,363 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:52:11,384 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1115 [2020-10-14 21:52:11,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:52:11,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:52:11,418 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:52:11,418 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 183 [2020-10-14 21:52:11,418 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:52:11,418 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-14 21:52:11,418 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:52:11,418 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:52:11,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:52:11,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:52:11,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:52:11,419 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:52:11,450 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1297 [2020-10-14 21:52:11,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:52:11,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:52:11,473 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:52:11,473 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 114 [2020-10-14 21:52:11,473 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:52:11,473 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-14 21:52:11,473 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:52:11,473 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:52:11,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:52:11,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:52:11,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:52:11,474 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:52:11,490 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1410 [2020-10-14 21:52:11,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:52:11,495 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:52:11,514 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:52:11,515 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 128 [2020-10-14 21:52:11,515 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:52:11,515 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-14 21:52:11,515 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:52:11,515 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:52:11,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:52:11,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:52:11,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:52:11,516 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:52:11,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1537 [2020-10-14 21:52:11,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:52:11,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:52:11,559 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:52:11,560 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 126 [2020-10-14 21:52:11,560 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:52:11,560 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-14 21:52:11,560 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:52:11,560 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:52:11,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:52:11,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:52:11,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:52:11,561 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:52:11,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1662 [2020-10-14 21:52:11,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:52:11,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:52:11,647 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:52:11,647 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-14 21:52:11,647 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:52:11,647 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-14 21:52:11,647 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:52:11,648 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:52:11,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:52:11,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:52:11,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-14 21:52:11,648 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:52:11,659 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1741 [2020-10-14 21:52:11,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:52:11,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:52:11,810 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:52:11,810 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-10-14 21:52:11,810 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:52:11,810 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 126 [2020-10-14 21:52:11,811 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:52:11,811 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:52:11,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:52:11,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:52:11,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 173 [2020-10-14 21:52:11,811 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:52:11,908 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1913 [2020-10-14 21:52:11,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:52:11,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:52:11,960 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:52:11,960 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 131 [2020-10-14 21:52:11,961 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:52:11,961 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-14 21:52:11,961 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:52:11,961 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:52:11,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:52:11,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 128 [2020-10-14 21:52:11,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:52:11,961 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:52:11,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2043 [2020-10-14 21:52:11,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:52:11,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:52:12,009 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:52:12,010 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-14 21:52:12,010 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:52:12,010 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 21:52:12,010 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:52:12,010 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:52:12,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:52:12,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-10-14 21:52:12,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:52:12,011 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:52:12,021 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2122 [2020-10-14 21:52:12,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:52:12,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:52:12,077 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:52:12,077 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-14 21:52:12,077 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:52:12,077 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-14 21:52:12,077 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:52:12,078 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:52:12,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:52:12,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 142 [2020-10-14 21:52:12,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:52:12,078 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:52:14,563 INFO L134 CoverageAnalysis]: Checked inductivity of 17125 backedges. 2946 proven. 346 refuted. 0 times theorem prover too weak. 13833 trivial. 0 not checked. [2020-10-14 21:52:14,563 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1890011708] [2020-10-14 21:52:14,563 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 21:52:14,564 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 21:52:14,564 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [422005578] [2020-10-14 21:52:14,565 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 21:52:14,565 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 21:52:14,565 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 21:52:14,565 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 21:52:14,565 INFO L87 Difference]: Start difference. First operand 4808 states and 4936 transitions. Second operand 7 states. [2020-10-14 21:52:15,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 21:52:15,864 INFO L93 Difference]: Finished difference Result 9430 states and 9685 transitions. [2020-10-14 21:52:15,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-14 21:52:15,864 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 2323 [2020-10-14 21:52:15,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 21:52:15,872 INFO L225 Difference]: With dead ends: 9430 [2020-10-14 21:52:15,873 INFO L226 Difference]: Without dead ends: 4812 [2020-10-14 21:52:15,878 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-10-14 21:52:15,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4812 states. [2020-10-14 21:52:15,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4812 to 4808. [2020-10-14 21:52:15,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4808 states. [2020-10-14 21:52:15,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4808 states to 4808 states and 4920 transitions. [2020-10-14 21:52:15,937 INFO L78 Accepts]: Start accepts. Automaton has 4808 states and 4920 transitions. Word has length 2323 [2020-10-14 21:52:15,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 21:52:15,938 INFO L479 AbstractCegarLoop]: Abstraction has 4808 states and 4920 transitions. [2020-10-14 21:52:15,938 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 21:52:15,938 INFO L276 IsEmpty]: Start isEmpty. Operand 4808 states and 4920 transitions. [2020-10-14 21:52:15,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2425 [2020-10-14 21:52:15,973 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 21:52:15,974 INFO L422 BasicCegarLoop]: trace histogram [19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 17, 17, 17, 16, 16, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 13, 13, 13, 12, 12, 12, 12, 11, 10, 10, 10, 10, 10, 10, 10, 9, 9, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 21:52:15,974 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2020-10-14 21:52:15,974 INFO L427 AbstractCegarLoop]: === Iteration 26 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 21:52:15,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 21:52:15,975 INFO L82 PathProgramCache]: Analyzing trace with hash 1284878149, now seen corresponding path program 1 times [2020-10-14 21:52:15,975 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 21:52:15,975 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2067691310] [2020-10-14 21:52:15,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 21:52:16,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:52:16,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:52:20,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:52:21,423 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:52:21,423 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 2468 [2020-10-14 21:52:21,423 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 21:52:21,423 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5106 [2020-10-14 21:52:21,423 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:52:21,424 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:52:21,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 21:52:21,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2176 [2020-10-14 21:52:21,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 291 [2020-10-14 21:52:21,424 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:52:21,673 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 21:52:21,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:52:21,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:52:21,677 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:52:21,677 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 21:52:21,678 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:52:21,678 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 21:52:21,678 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:52:21,678 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:52:21,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:52:21,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:52:21,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:52:21,679 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:52:21,690 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 21:52:21,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:52:21,696 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:52:21,716 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:52:21,716 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 21:52:21,716 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:52:21,716 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-14 21:52:21,717 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:52:21,717 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:52:21,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:52:21,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:52:21,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:52:21,718 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:52:21,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-14 21:52:21,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:52:21,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:52:21,776 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:52:21,777 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-14 21:52:21,777 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:52:21,777 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-14 21:52:21,778 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:52:21,778 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:52:21,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:52:21,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:52:21,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:52:21,779 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:52:21,816 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-14 21:52:21,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:52:21,825 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:52:21,853 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:52:21,854 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-14 21:52:21,854 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:52:21,854 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-14 21:52:21,854 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:52:21,855 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:52:21,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:52:21,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:52:21,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:52:21,856 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:52:21,897 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-14 21:52:21,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:52:21,904 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:52:21,924 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:52:21,924 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-14 21:52:21,925 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:52:21,925 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-14 21:52:21,925 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:52:21,926 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:52:21,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:52:21,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:52:21,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:52:21,927 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:52:21,947 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-14 21:52:21,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:52:21,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:52:22,021 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:52:22,021 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-14 21:52:22,021 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:52:22,022 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-10-14 21:52:22,022 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:52:22,022 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:52:22,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:52:22,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:52:22,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:52:22,023 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:52:22,096 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-14 21:52:22,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:52:22,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:52:22,122 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:52:22,123 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-14 21:52:22,123 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:52:22,123 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-14 21:52:22,124 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:52:22,124 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:52:22,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:52:22,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:52:22,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:52:22,125 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:52:22,143 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-14 21:52:22,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:52:22,158 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:52:22,219 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:52:22,219 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-14 21:52:22,219 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:52:22,220 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-10-14 21:52:22,220 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:52:22,222 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:52:22,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:52:22,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:52:22,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:52:22,223 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-14 21:52:22,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-14 21:52:22,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:52:22,310 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:52:22,346 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:52:22,347 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-14 21:52:22,347 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:52:22,347 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-14 21:52:22,348 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:52:22,348 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:52:22,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:52:22,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:52:22,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:52:22,350 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:52:22,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 975 [2020-10-14 21:52:22,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:52:22,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:52:22,441 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:52:22,441 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-14 21:52:22,442 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:52:22,442 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-14 21:52:22,442 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:52:22,442 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:52:22,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:52:22,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:52:22,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:52:22,443 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:52:22,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1115 [2020-10-14 21:52:22,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:52:22,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:52:22,544 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:52:22,544 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 183 [2020-10-14 21:52:22,544 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:52:22,545 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-14 21:52:22,545 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:52:22,545 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:52:22,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:52:22,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:52:22,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:52:22,546 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:52:22,657 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1297 [2020-10-14 21:52:22,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:52:22,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:52:22,691 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:52:22,692 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 114 [2020-10-14 21:52:22,692 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:52:22,692 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-14 21:52:22,692 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:52:22,692 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:52:22,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:52:22,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:52:22,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:52:22,693 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:52:22,711 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1410 [2020-10-14 21:52:22,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:52:22,716 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:52:22,738 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:52:22,738 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 128 [2020-10-14 21:52:22,738 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:52:22,739 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-14 21:52:22,739 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:52:22,739 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:52:22,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:52:22,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:52:22,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:52:22,739 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:52:22,761 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1537 [2020-10-14 21:52:22,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:52:22,767 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:52:22,789 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:52:22,789 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 126 [2020-10-14 21:52:22,789 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:52:22,789 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-14 21:52:22,789 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:52:22,790 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:52:22,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:52:22,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:52:22,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:52:22,790 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:52:22,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1662 [2020-10-14 21:52:22,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:52:22,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:52:22,854 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:52:22,854 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-10-14 21:52:22,854 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:52:22,854 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-14 21:52:22,854 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:52:22,854 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:52:22,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:52:22,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:52:22,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:52:22,855 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:52:22,891 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1842 [2020-10-14 21:52:22,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:52:22,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:52:22,933 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:52:22,934 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-10-14 21:52:22,934 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:52:22,934 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-14 21:52:22,934 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:52:22,934 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:52:22,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:52:22,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:52:22,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:52:22,935 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:52:22,969 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2014 [2020-10-14 21:52:22,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:52:23,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:52:23,044 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:52:23,044 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 131 [2020-10-14 21:52:23,044 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:52:23,044 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-10-14 21:52:23,044 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:52:23,044 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:52:23,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:52:23,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:52:23,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 125 [2020-10-14 21:52:23,045 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:52:23,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2144 [2020-10-14 21:52:23,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:52:23,081 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:52:23,116 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:52:23,117 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-14 21:52:23,117 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:52:23,117 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-14 21:52:23,117 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:52:23,117 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:52:23,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:52:23,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:52:23,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 80 [2020-10-14 21:52:23,118 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:52:23,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2223 [2020-10-14 21:52:23,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:52:23,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:52:23,261 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:52:23,262 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-14 21:52:23,262 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:52:23,262 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 94 [2020-10-14 21:52:23,262 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:52:23,262 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:52:23,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:52:23,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:52:23,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 145 [2020-10-14 21:52:23,263 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:52:25,792 INFO L134 CoverageAnalysis]: Checked inductivity of 17962 backedges. 4146 proven. 130 refuted. 0 times theorem prover too weak. 13686 trivial. 0 not checked. [2020-10-14 21:52:25,793 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2067691310] [2020-10-14 21:52:25,793 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 21:52:25,793 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-14 21:52:25,793 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [103231696] [2020-10-14 21:52:25,794 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-14 21:52:25,794 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 21:52:25,794 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-14 21:52:25,795 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-14 21:52:25,795 INFO L87 Difference]: Start difference. First operand 4808 states and 4920 transitions. Second operand 6 states. [2020-10-14 21:52:26,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 21:52:26,890 INFO L93 Difference]: Finished difference Result 9432 states and 9654 transitions. [2020-10-14 21:52:26,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-14 21:52:26,891 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 2424 [2020-10-14 21:52:26,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 21:52:26,893 INFO L225 Difference]: With dead ends: 9432 [2020-10-14 21:52:26,893 INFO L226 Difference]: Without dead ends: 0 [2020-10-14 21:52:26,902 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-10-14 21:52:26,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-14 21:52:26,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-14 21:52:26,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-14 21:52:26,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-14 21:52:26,903 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 2424 [2020-10-14 21:52:26,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 21:52:26,903 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-14 21:52:26,904 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-14 21:52:26,904 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-14 21:52:26,904 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-14 21:52:26,904 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2020-10-14 21:52:26,906 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-14 21:52:27,389 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 90 [2020-10-14 21:52:27,548 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 90 [2020-10-14 21:52:29,284 WARN L193 SmtUtils]: Spent 827.00 ms on a formula simplification. DAG size of input: 361 DAG size of output: 314 [2020-10-14 21:52:29,978 WARN L193 SmtUtils]: Spent 689.00 ms on a formula simplification. DAG size of input: 361 DAG size of output: 314